Year End Summary for 39091001

Year End Summary for 2022

YEAR END SUMMARY
STATION NAME: Cannon River at Morristown, CSAH16
STATION NUMBER: H39091001
YEAR: 2022
PREPARED BY: Nick Hayes, nicholas.hayes@state.mn.us

CLIMATE SUMMARY:
Division 8: The first four months of the year were cool and somewhat dry, with temperatures averaging about 3^ F lower and precipitation averaging 1.15 inches or 20% lower than 1991-2020 normals. Very to extremely dry conditions beginning in June left the May-September precipitation season an average of 6.8 inches and over 30% drier than normal, with temperatures averaging 1.2^ F above normal. Several outbreaks of severe convective storms affected the area in May and June, but there were no major rainfall or flash-flooding episodes during the precipitation season. A major storm December 13-17 dropped 2 to 10 inches of snow and 0.50 to 1.5 inches of total precipitation. Additional snows the following week 4 to 12 inches of snow cover, ranking between the 60th and 95th percentile for late December.

STATION OPERATION SUMMARY:
Is this site monitored year round? NO.
Open water dates - estimated Ice out and Ice in: Estimated ice-out at 3/21/2022 and ice-in at 11/13/2022 based on climate data and field inspections and photos.
Open water sites ONLY. Period of data record (if different from ice out/ice in dates): 3/17/2022 - 11/17/2022.
Summary of equipment - related factors that impacted data collection: None documented. Orifice line might have been out of water on 8/26/2022 and 8/27/2022, but no field inspections during that time to verify.

DISCHARGE SUMMARY:
Number of flow measurements for monitoring season: Six.
Was the full range of flows measured for the season? YES. One moderate flow, two low flows, and three very low flows were measured during the 2022 season. No high flows occurred during 2022. Highest measured discharge was 424 cfs, which is historically a moderate flow at this station. Highest measured discharge of 424 cfs occurred on 5/4/2022 and was 94% of the highest computed unit discharge of 451 cfs on 5/1/2022. Lowest measured discharge of 0.10 cfs occurred on 8/10/2022 and was 10 times greater than the lowest computed unit discharge of 0.01 cfs on 8/27/2022. Discharge measured on 8/10/2022 was the lowest measured at this station since 10/10/2012.
Was a new rating developed? NO.
General summary of control changes/shifts needed: Small scour shift applied for higher spring flows and a small vegetation shift was applied during summer for 2022.
Quality of computed daily discharges: Highest flows in spring and early summer are coded Good and Fair. Summer and autumn low flows are coded Estimated or Poor. Season is bookended by Ice coded discharges. All non-Ice quality codes are rating curve assigned.

PRECIPITATION DATA OVERVIEW:
Was precipitation data collected at this site? YES
Climatological liquid precipitation period: 5/1/2022-9/30/2022
Was there a complete and acceptable precipitation record for this period? YES

Year End Summary for 39091001

Year End Summary for 2021

YEAR END SUMMARY
STATION NAME: Cannon River at Morristown, CSAH16
STATION NUMBER: H39091001
YEAR: 2021
PREPARED BY: Nick Hayes, nicholas.hayes@state.mn.us

CLIMATE SUMMARY: Division 8, 2021: After a generally mild winter with normal to below-normal snowfall, warm and dry conditions dominated the May-through-October liquid precipitation season, leading to widespread Moderate and Severe Drought, with isolated Extreme categorizations on the US Drought Monitor. Precipitation from May through October averaged about 75% of normal. May through July was especially dry, with an average of just over 7.5 inches of rain falling over the 3-month period (normal would have been over 13.5 inches). June and July had bouts of extreme heat, which worsened the drought conditions, and May through October averaged over 2.5 degrees F above normal. Normal to above-normal precipitation during late summer and autumn helped drought conditions improve Heavy rain fell on August 26-27, with 3-5 inches in many areas. Mean temperatures fell below freezing in early November, with accumulating snows most areas by early December.

STATION OPERATION SUMMARY:
Is this site monitored year round? NO
Open water dates - estimated Ice out and Ice in: Ice out estimated at 3/10/2021. PCA photos from 3/11/2021 still show shore ice DS of bridge. Ice in estimated at 12/19/2021 based on climate data.
Open water sites ONLY. Period of data record (if different from ice out/ice in dates): 3/6/2021 to 11/1/2021
Summary of equipment - related factors that impacted data collection: Freezing temperatures caused level data spikes on 3/6/2021 that necessitated manual estimation of that daily discharge.

DISCHARGE SUMMARY:
Number of flow measurements for monitoring season: Six.
Was the full range of flows measured for the season? NO. No high flow measurements were made during 2021. Highest measured discharge of 262 cfs was observed on 3/10/2021 and was approximately 50% of the highest computed discharge of 527 cfs that occurred on 3/28/2021. Lowest measured discharge of 11.9 cfs measured on 10/21/2021. Period of very low flow, less than 0.11 cfs, was computed from 8/15/2021 - 8/24/2021.
Was a new rating developed? YES. New rating was created to calculate low flows and incorporate pipe outlet survey elevations.
General summary of control changes/shifts needed: Vegetation shifts needed throughout the open water season starting in April with the shift magnitude varying to account for vegetative growth and die-off.
Quality of computed daily discharges: Manually estimated discharge for daily discharge on 3/6/2021. Two small gaps in level data due to spikes being removed from level data on 3/6/2021 prevented daily discharge from being computed. Re-interpolated level data gaps to get the 3/6/2021 daily Q to compute and then put the gaps back in. Discharges from 3/6/2021 - 3/10/2021 are quality coded Ice for ice conditions present. Higher stage discharges during spring and early July event are quality coded Good with some Fair based on the assigned rating QCs. Low flows during summer and autumn are coded Poor based on assigned rating QCs. Computed discharges from 8/15/2021 - 8/24/2021 when near-zero flow conditions documented by field visit on 8/20/2021 are quality coded as Estimated.

PRECIPITATION DATA OVERVIEW:
Was precipitation data collected at this site? YES
Climatological liquid precipitation period: 5/1/2021 - 10/31/2021
Was there a complete and acceptable precipitation record for this period? YES

Year End Summary for 39091001

Year End Summary for 2020

YEAR END SUMMARY

STATION NAME: Cannon River at Morristown, CSAH26
STATION NUMBER: H39091001
YEAR: 2020
PREPARED BY: Steve Labuz; stephen.labuz@state.mn.us

CLIMATE SUMMARY:
Division 8, 2020: Mild conditions and near-normal snowfall January through into April topped off a moderately snowy early winter, leading to normal to slightly above-normal seasonal snowfall totals of 40-55 inches. The May-September growing season was warm and slightly wet, punctuated by very warm June through August conditions, and occasional bouts of heavy rainfall. A rare "mega-rain," producing over 1000 square miles of 6-inch totals, affected areas near the Minnesota River on July 25-26. An earlier widespread heavy rainfall event on June 28-29 produced 2-5 inches over much of the area as well. Temperatures fell deeply below freezing in early October, but with little precipitation falling, the liquid precipitation season extended to October 15. Snow fell occasionally from mid-October into early November, with most of the area seeing totals of 6-12 inches by the end of November. Extreme warmth melted much of the snow during early-mid November, and the rest was melted by persistently mild conditions during the remainder of the month. No snow was on the ground as of December 1.

STATION OPERATION SUMMARY:
Is this site monitored year round? NO
Open water dates - estimated Ice out and Ice in: Estimated ice out was 3/5/2020 and estimated ice in was 12/1/2020.
Open water sites ONLY. Period of data record (if different from ice out/ice in dates): 3/7/2020 - 11/1/2020.
Summary of equipment - related factors that impacted data collection: A temporary bubbler line has been collecting data here for several years. The logger was reset in early spring then tracked well the rest of the year. A WXT sensor on the weather station was replaced.

DISCHARGE SUMMARY:
Number of flow measurements for monitoring season: 5
Was the full range of flows measured for the season? YES - The highest measured flow was 553cfs and lowest was 97cfs. The highest calucated flow was 723cfs and lowest calculated flow was 9.9cfs. 76% of high flows were captured in the spring and 87% of high flows were captured in the summer. Moderate flows were also captured.
Was a new rating developed? NO
General summary of control changes/shifts needed: Spring flows were on the rating, which is typical then summer veg heavily impacts the channel from June through September.
Quality of computed daily discharges: The first half of the year is coded estimated due to the COVID-19 stay at home order. From July to November discharges are coded good, fair, and poor due to very low flows in early October.

PRECIPITATION DATA OVERVIEW:
Was precipitation data collected at this site? YES
Climatological liquid precipitation period: 4/16/2020 - 10/15/2020
Was there a complete and acceptable precipitation record for this period? YES

DISCLAIMER: In the spring and summer of 2020, field work was limited due to the COVID 19 related travel and work restrictions. Because of this, there are less frequent discharge measurements, which can lead to more uncertainty and data estimation. This is reflected in the quality codes of the discharge data.

Year End Summary for 39091001

Year End Summary for 2019

 YEAR END SUMMARY
STATION NAME: Cannon River at Morristown, CSAH16
STATION NUMBER: H39091001
YEAR: 2019
PREPARED BY: Erin Spry, erin.spry@state.mn.us

CLIMATE SUMMARY:  Division 8, 2019: One of the wettest years on record, with annual surpluses in excess of 11 inches (35%). Cold and stormy conditions from the end of January through April contributed to seasonal snowfall totals of 60 to 85 inches, generally 40 to 70% above 1981-2010 averages. The first four months of the year were 4.6 degrees F below average, with a deficit of 11 degrees F in February. The May - September growing season was mild and wet, with May and September both 75-85% wetter than average. Heavy rains with isolated amounts exceeding 2 inches occurred more than 10 times during the growing season. October was nearly 100% wetter than average, and wet and cool conditions prevailed through the remainder of the year, with the seasonal snowpack established during the end of November.

GAGE OPERATION SUMMARY: 
Is this site monitored year round? NO 
Open water dates - estimated Ice out and Ice in: 03/16/2019 and 11/06/2019
Open water sites ONLY. Period of data record (if different from ice out/ice in dates): 03/14/2019 - 11/06/2019
Summary of equipment - related factors that impacted data collection: Logger and bubbler line issues present throughout the season. We suspect a combination of vegetation interference and a loose bubbler line were to blame. Bubbler painting at 05/22 visit. Temp bubbler line replaced at visit. Logger painting again at 08/13 visit. Temp bubber line reset at different location during visit. 
Number of flow measurements for monitoring season: Seven.
Was the full range of flows measured for the season? YES. Mostly mid-range flows and high-range flows were captured this season. The highest calucated flow was 1590cfs in the spring and DNR measured 80% of the peak with 1274cfs.  The lowest calculated flow was 133cfs and DNR lowest measured flow was 265cfs. 

DISCHARGE SUMMARY:
Was a new rating developed? NO  
General summary of control changes/shifts needed: No shifts needed in first half of year. Vegetation shifts needed from July to end of monitoring season. 
Quality of computed daily discharges: Estimated, poor, to fair in periods while gauge was painting. Good later in year when gauge issues were resolved. 

PRECIPITATION DATA OVERVIEW:
Was precipitation data collected at this site? YES 
Climatological liquid precipitation period: 05/01/2019 - 10/31/2019
Was there a complete and acceptable precipitation record for this period? YES. Rain bucket tracked well compared to monthly discharges. A couple hours on 7/2/2019 were deleted due to a backup of water in the lid.

Year End Summary for 39091001

Year End Summary for 2018

YEAR END SUMMARY
STATION NAME: Cannon River at Morristown, CSAH16
STATION NUMBER: H39091001
YEAR: 2018
PREPARED BY: Jacob Kolke; jacob.kolke@state.mn.us

CLIMATE SUMMARY: Division 8, 2018: A long and late winter produced frozen precipitation and cold conditions well into April, with snow cover persisting until the final week of the month. The May - September growing season was very warm and extremely wet, averaging three degrees F warmer and 9.2 inches (or about 45%) wetter than 1981-2010 averages. Major rainfall events produced 4-7-inch totals and flooding in south-central Minnesota on June 21 and September 5, with additional heavy rain events producing 2-4-inch totals on June 9-10, June 25, and September 20-21. Cool weather resumed in early October, with snows on the 14th, and the seasonal snow cover beginning around December 1.

GAGE OPERATION SUMMARY:
Is this site monitored year round? NO
Open water dates: 3/15/2018 - 10/31/2018
Summary of equipment-related factors that impacted data collection: There was a period of time from late June through early July where the o-line was damaged and collected irregular and highly questionable data. The data was left in and smoothed where necessary.
Number of flow measurements for monitoring season: 7
Was the full range of flows measured for the season? YES. The highest discrete flow measurement was taken at 14.14 ft and had a gaged flow of 617 cfs. The highest recorded level was 14.69 ft assumed and has a rated flow of 954 cfs.

DISCHARGE SUMMARY:
Was a new rating developed? NO
General summary of control changes/shifts needed: There was a period of increasing scour starting in late March and continuing through late April. Then starting in late May large amounts of vegetation grew in quite rapidly up to late June. Gradually the vegetation died off and decreased until mid -October.
Quality of computed daily discharges: Discharges were coded good to questionable with the largest amount of days falling in the fair category.

PRECIPITATION DATA OVERVIEW:
Was precipitation data collected at this site? YES
Climatological liquid precipitation period: 5/1/2018 - 9/30/2018
Was there a complete and acceptable record for this period? NO. The month of October tracked below the climatological minimum total and was removed from the record.

Year End Summary for 39091001

Year End Summary for 2017

********************************************************************************
MPCA/DNR Cooperative Stream Gaging Year End Summary Report
Station: H39091001 - Cannon River at Morristown, CSAH16
Year: 2017
Station Manager: ANLINDLO
Data Manager: JAKOLKE

Prepared By:
Jacob Kolke (jakolke)
651-539-2130 (JACOB.KOLKE@STATE.MN.US)

Approved By:
Brenda Stauffer (brstauff)
651-539-2118 (BRENDA.STAUFFER@STATE.MN.US)
********************************************************************************

January http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201701&div=MN08
February http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201702&div=MN08
March http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201703&div=MN08
April http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201704&div=MN08
May http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201705&div=MN08
June http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201706&div=MN08
July http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201707&div=MN08
August http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201708&div=MN08
September http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201709&div=MN08
October http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201710&div=MN08
November http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201711&div=MN08
December http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201712&div=MN08

Gridded
Monthly Precipitation Totals: The synthetic data are made up of regularly-spaced
grid nodes whose values were calculated using data interpolated from Minnesota's
spatially and temporally irregular precipitation data base. Grids were prepared
using the National Weather Service data from 1891 to 1972. For the period 1973 to
the present, the High Spatial Density Precipitation Network (HIDEN) data (which
includes NWS data) are
used.
http://climate.umn.edu/gridded_data/precip/monthly/csg_lookup.htm?site_id=39091001

HydroClim
Minnesota is monthly electronic newsletter summarizing Minnesota's climate
conditions and the resulting impact on water
resources.
http://www.dnr.state.mn.us/hydroclim/index.html

The Hydrologic
Conditions Report is prepared monthly by the DNR Division of Ecological and Water
Resources and provides general information concerning the various water resources
across Minnesota. The report places current values of precipitation, stream
flows, lake levels and ground water levels in historical
context.
http://www.dnr.state.mn.us/current_conditions/hydro_conditions.html

Flow Data Summary
--------------------------------------------------------------------------------
Site visits to determine if the logger was tracking stage correctly were done at
a frequency of 8 weeks or less.
The stage record tracked correctly and was complete for the entire monitoring
season.
Other stage data collection factors: There were no recorded equipment problems
during the monitoring season.
9 flow measurements were taken during the monitoring season.
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.
Flow measurements were taken this year with a maximum frequency of 4-5 weeks or
with a frequency that accurately reflects seasonal conditions.
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge. The highest gaged flow was taken on 5/24/17
and had a discharge of 427.8 cfs.The highest recorded stage was during the event
on 5/24/17 and had a computed discharge of 447.26 cfs.Therefore the measurements
were within 96% of the highest recorded annual discharge.
The rating is well developed over this year's range of flows when considering
both quality and quantity of measurements.
Site visits to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
A change in the physical characteristics of the control occurred at some time
during the monitoring season.
Change in control: The site was heavily impacted by veg growth starting in late
May and lasting through early November.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record either did not track correctly or was not complete for
some parts of the monitoring season. Month of October was removed due to under
reporting. Bucket was blocked during this time.
The overall precip total for the year compares well to an adjacent station.
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season.
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was calibrated within the last three years. A new rain bucket with
a 2 in/hr calibration was installed on 5/5/16 when the site was upgraded to a
co-located weather station/stream gage.

Water Quality Data Summary
--------------------------------------------------------------------------------
Please see the MPCA Environmental Data Access system for Water Quality results.
http://www.pca.state.mn.us/customPHP/eda/stationInfo.php?ORG=MNPCA&wdip=2&ID=S003-487

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2017
--------------------------------------------------------------------------------
Flow = Good Archived Daily Value (QQC=30)
Precip = Fair Archived Daily Value (PQC=31)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2016

Prepared By:
Will Long (wilong)
651-539-2129 (WILL.LONG@STATE.MN.US)

Approved By:
Carrie Robertson (carobert)
651-539-2116 (CARRIE.ROBERTSON@STATE.MN.US)
********************************************************************************

January http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201601&div=MN08
February http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201602&div=MN08
March http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201603&div=MN08
April http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201604&div=MN08
May http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201605&div=MN08
June http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201606&div=MN08
July http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201607&div=MN08
August http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201608&div=MN08
September http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201609&div=MN08
October http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201610&div=MN08
November http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201611&div=MN08
December http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201612&div=MN08

HydroClim
Minnesota is monthly electronic newsletter summarizing Minnesota's climate
conditions and the resulting impact on water
resources.
http://www.dnr.state.mn.us/hydroclim/index.html

Flow Data Summary
--------------------------------------------------------------------------------
Site visits to determine if the logger was tracking stage correctly were done at
a frequency of 8 weeks or less.
The stage record tracked correctly and was complete for the entire monitoring
season.
Other stage data collection factors: There were no major stage data issues in
2016. There was a large reset needed at the beginning of the monitoring season.
Some incorrect resets that were fixed, and the orifice line was operated on a few
times. There are a few data gaps caused by complications with the weather
station.
9 flow measurements were taken during the monitoring season.
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.
Flow measurements were taken this year with a maximum frequency of 4-5 weeks or
with a frequency that accurately reflects seasonal conditions.
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge. The highest gaged stage was 15.49' on
9/25/16 and had a discharge of 1546.242 cfs. The highest
recorded stage was
15.508' on 9/25/16 and had a computed discharge of 1572.460 cfs. Therefore
the
measurements were within 98% of the highest recorded annual discharge.
The rating is well developed over this year's range of flows when considering
both quality and quantity of measurements.
Site visits to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
A change in the physical characteristics of the control occurred at some time
during the monitoring season.
Change in control: There was a period of heavy veg growth that affected flows in
mid-June through mid-August. Another period of veg, this time bank veg, affected
high flows from mid-September through mid-October.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record tracked correctly and was complete for the monitoring
season.
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season.
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data. The period the rain bucket was determined to be
plugged started on 5/27/16 and lasted until the inspection on 6/7/16 when it was
cleaned out.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was calibrated within the last three years. New rain bucket with a
2 in/hr calibration was installed on 5/5/16 when the site was upgraded to a
co-located weather station/stream gage.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2016
--------------------------------------------------------------------------------
Flow = Good Archived Daily Value (QQC=30)
Precip = Good Archived Daily Value (PQC=30)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2015

Prepared By:
Erynn Jenzen (erjenzen)
651-539-2126 (ERYNN.JENZEN@STATE.MN.US)

Approved By:
Carrie Robertson (carobert)
651-539-2116 (CARRIE.ROBERTSON@STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is only collected for a partial year at this site.
Data collection began on 03/17/2015. Samples started on 3/18 with daily
discharges starting on 3/23 when flows could be estimated using downstream USGS
sites.
Data collection ended on 11/01/2015.
The ice out date cannot be determined. Data collection started after ice out.
Snowmelt conditions: NA
The stream was in its banks during the entire year.
There were no periods of low or no flow during the entire year.
Significant climatic events: 2015 Climate Summary - South
Central

January http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201501&div=MN08
February

http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201502&div=MN08
March http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201503&div=MN08
April http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201504&div=MN08
May http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201505&div=MN08
June http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201506&div=MN08
July http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201507&div=MN08
August http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201508&div=MN08
September http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201509&div=MN08
October http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201510&div=MN08
November http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201511&div=MN08
December http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201512&div=MN08

HydroClim
Minnesota is monthly electronic newsletter summarizing Minnesota's climate
conditions and the resulting impact on water
resources.
http://www.dnr.state.mn.us/hydroclim/index.html

7 flow measurements were taken during the monitoring season.
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.
Flow measurements were taken this year with a maximum frequency of 4-5 weeks or
with a frequency that accurately reflects seasonal conditions.
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge. The highest gaged stage was 13.795' on
9/21/15 and had a discharge of 358.00 cfs. The highest recorded stage was 14.081'
on 9/10/15 and had a computed discharge of 496.37 cfs. Therefore the measurements
were within 72% of the highest recorded annual discharge.
The rating is well developed over this year's range of flows when considering
both quality and quantity of measurements.
Site visits to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
A change in the physical characteristics of the control occurred at some time
during the monitoring season.
Change in control: There was a period of scour just after ice out March through
mid-April. This was followed by veg growth affecting flows from early May through
early August. Finally a period of no veg/scour affected flows from late September
through the end of the monitoring season in December.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record either did not track correctly or was not complete for
some parts of the monitoring season. The rain bucket was reported blocked during
the 8/20/2015 inspection. Reference tracing was done with nearby H39042001 and
H39043001 events. Since the last inspection that did not track well with the
reference traces the data was removed from the record.
The overall precip total for the year compares well to an adjacent station.
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season.
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was calibrated within the last three years.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2015
--------------------------------------------------------------------------------
Flow = Poor Archived Daily Value (QQC=32)
Precip = Fair Archived Daily Value (PQC=31)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2014

Prepared By:
Zachary Moore (zamoore)
651-539-2112 (ZACHARY.MOORE@STATE.MN.US)

Approved By:
Jim Pogorelc (jipogore)
218-327-4110 (JIM.POGORELC@STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is collected year round at this site.
The ice out date was 04/03/2014.
Snowmelt conditions: Snowmelt projectedly occurred slightly before and during
ice out. The snowmelt was a fair moderate event, occuring over several day and
causing around a 1/2 ft rise in stage over this time period. Stage then began to
normalize and fall once the effects of snowmelt were reduced.
The stream was in its banks during the entire year. Stage reacheh its highest
peak in the year between 6/22/14 through 6/25/14 during heavy rains, but no
reports were made of the stream being out of banks.
There were no periods of low or no flow during the entire year.
Significant climatic events: 2014 Climate Summary - South
Central

January http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201401&div=MN08
February http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201402&div=MN08
March http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201403&div=MN08
April http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201404&div=MN08
May http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201405&div=MN08
June http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201406&div=MN08
July http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201407&div=MN08
August http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201408&div=MN08
September http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201409&div=MN08
October http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201410&div=MN08
November http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201411&div=MN08
December http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201412&div=MN08

HydroClim
Minnesota is monthly electronic newsletter summarizing Minnesota's climate
conditions and the resulting impact on water
resources.
http://www.dnr.state.mn.us/hydroclim/index.html

Flow Data Summary
--------------------------------------------------------------------------------
Site vists to determine if the logger was tracking stage correctly were done at a
frequency of 8 weeks or less. During the monitoring season of April-October
The stage record tracked correctly and was complete for the entire monitoring
season.
Other stage data collection factors: Due to the bubble line being in a shallow
pool, there were thre periods of time throughout 2014 in which stage data
collection was slightly comprimised. The orifice line was most likely frozen
during the winter period of 1/1/14 - 4/3/14 and became funtional again follwing
ice out. Data during this period is erratic and fairly unreliable. During the
periods of 19:145:00 9/29/14- 09:30:00 10/1/14 and 10:00:00 10/7/14-08:15:00
10/24/14, the orifice line was most likely out of water due to low stages. Data
during this period of time was supplemented from another nearby Cannon River
site, H39025001 Cannon River at Sogn.
10 flow measurements were taken during the monitoring season.
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.
Flow measurements were taken this year with a maximum frequency of 4-5 weeks or
with a frequency that accurately reflects seasonal conditions. There were two
instances where the duration between measurements was greater than 5 weeks, but
only by one day. Measurements were made at a wide range of flows.
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge. Measurement of 1340 CFS on 6/24/14 is 91% of
the max seasonal discharge of 1470 CFS on 6/23/14.
The rating is not well developed over this year's range of flows when considering
quality and quantity of measurements. At the high end of the rating, the
measurements are scattered and the rating is not considered to be well developed.
The rating has at least five measurements over the full range of this year's
flows.
Site vists to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
A change in the physical characteristics of the control occurred at some time
during the monitoring season.
Change in control: Vegetation growth in the channel started to affect the
stage/discharge relationship starting in June so a series of shifts were applied.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record tracked correctly and was complete for the monitoring
season.
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season. There was several instances of partial plugging of the rain
bucket- a week in May, two weeks in June, and the month of August.
The period of record when the rain gage was plugged could either not be
accurately determined or was not removed from the corrected data. In all three
instances, the rain bucket was recording precipitation events slightly under that
reported by the climatology data. This suggests that the rain bucket was only
partially plugged and therefore the record was not deleted, but rather coded
questionable.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was calibrated within the last three years.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2014
--------------------------------------------------------------------------------
Flow = Fair Archived Daily Value (QQC=31)
Precip = Poor Archived Daily Value (PQC=32)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2013

Prepared By:
Zachary Moore (zamoore)
651-539-2112 (ZACHARY.MOORE@STATE.MN.US)

Approved By:
Jim Pogorelc (jipogore)
218-327-4110 (JIM.POGORELC@STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is collected year round at this site.
The ice out date was 04/04/2013.
Snowmelt conditions: Snowmelt peak likely occured on 4/1/13 but anchor ice was
noted.
The stream was in its banks during the entire year.
Periods of low or no flow: Flows receded and stayed pretty low from September
through ice-in.
Significant climatic events: 2014 Climate Summary - South
Central

HydroClim
Minnesota is monthly electronic newsletter summarizing Minnesota's climate
conditions and the resulting impact on water
resources.
http://www.dnr.state.mn.us/hydroclim/index.html

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record either did not track correctly or was not complete for
some parts of the monitoring season. There was a plugged rain bucket
06/21-07/19.
The overall precip total for the year compares well to an adjacent station. The
nearest precip station (Goodhue-Cannon falls-Cannon Falls 112N 17W S7 (latitude:
44.51695 longitude: 92.89351)) reports a total of 14.77 in and this site's total
for the same period of 4/27-10/22 is 13.35 inches is within 90% of total
rainfull even with removal of plugged rain bucket data.
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season. Two periods of time that precip data was removed due to
plugged rain bucket from 6/20-7/19 and 7/29-8/27.
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was calibrated within the last three years. Rain bucket was
installed 11/21/2012 per spreadsheet.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2013
--------------------------------------------------------------------------------
Flow = Good Archived Daily Value (QQC=30)
Precip = Fair Archived Daily Value (PQC=31)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2012

Prepared By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@STATE.MN.US)

Approved By:
Matthew Meyer (mameyer)
651-259-5696 (MATTHEW.MEYER@STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is only collected for a partial year at this site. From 11/21/12 onward
site has an intermediate enclosure installed and will be left year round.
Data collection began on 03/14/2012.
Data collection ended on 12/31/2012.
The ice out date cannot be determined.
Snowmelt conditions: Lack of snow in area resulted in no observable rise from
snowmelt and installation not happening until 3/14/12 may have missed the event.
The stream was in its banks during the entire year.
Periods of low or no flow: From 8/7/12 through ice in on 11/24/12 flows dropped
below 2 cfs consistently.
Significant climatic events: 2012 Climate Summary ?013\010SouthCentral

Dept. Dept.
Avg. from Avg. from
Temp. Norm. Prec. Norm.
January 22 8 0.74 -0.21
February 26.4 7.1 2.23 1.38
March 47.2 15.8 1.51 -0.59
April 48.7 3.1 2.78 -0.24
May 62.8 4.4 7.25 3.38
June 70.5 2.2 3.83 -0.91
July 77.7 5.6 1.73 -2.68
August 69.8 -0.1 1.84 -2.65
September 60.9 -0.3 0.82 -2.66
October 45.7 -2.7 1.41 -1.06
November 36.6 3.5 0.53 -1.38
December 22.2 3.7 1.52 0.3

The
first half of 2012 was warmer on average and saw temperatures that were up to
almost sixteen degrees warmer than normal in South Central
Minnesota. The
second half of the monitoring season saw temperatures that varied from average
historical temps with July and November
both being notably warmer than average.
Precipitation was not far off of past averages during the first part of the year
with the
exception of May being notably wetter. Average totals during the
second half of the year were significantly lower than normal.
February?
monthly precipitation totals topped the historical average by more than one inch
over most of southern Minnesota.
For numerous southern Minnesota locales, it
was among the five wettest Februaries in the historical record. A large,
moisture-laden
storm swept across the southern two-thirds of Minnesota on
February 28 through March 1. Rainfall amounts of over one and one-half inches

were reported in many southern Minnesota communities. Large sections southern
Minnesota received three or more inches of rain from May 4
through May 6.
Later in the month, on May 23 and 24, over four inches of rain fell in some
southern and eastern Minnesota communities.
Heavy thunderstorms on June 14
dropped rainfall totals of six to eight inches on portions of Rice, Dakota, and
Goodhue Counties.
The axis of the heaviest rainfall totals aligned nearly
perfectly with the axis of the Cannon River watershed, amplifying the river
flooding.
The state experienced widespread rain on October 23-25.

[source:
State Climatology Office - DNR Division of Ecological and Water Resources]

Flow Data Summary
--------------------------------------------------------------------------------
Site vists to determine if the logger was tracking stage correctly were done at a
frequency of 8 weeks or less.
The stage record either did not track correctly or was not complete for some
parts of the monitoring season. Missing data from 10/22/12-11/21/12 due to data
lost in transition from MPCA operated station to DNR intermediate installation.
Stage was accurate and complete during all moderate to high flow periods this
season.
Incorrect or missing stage values were accurately adjusted or estimated using a
technique that introduced less than 5% error in total seasonal flow volume.
Nearby Cannon River at Welch (E38004002) was used to trace this gap.
Other stage data collection factors: Data through 10/22/12 collected with sonic
mounted on bridge with MPCA equipment. DNR installation on 11/21/12 uses a
bubbler on downstream left bank and is satellite telemetry.
6 flow measurements were taken during the monitoring season.
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.
Flow measurements were taken this year with a frequency greater than 4-5 weeks
and do not accurately reflect seasonal conditions. 10 week gap in site visits
for flow measurements from 5/15/12-7/24/12.
This site does not have a permanent fixed type control structure.
Flow measurements were taken with a frequency greater than 7 weeks and do not
capture moderate flows (50% of maximum seasonal discharge).
Flow measurements were taken with a frequency greater than 7 weeks and do not
capture moderate to low flows (25% of maximum seasonal discharge). 10 week gap
in flow meausurements from 5/15/12-7/24/12. Highest flow measurement was 234 cfs
on 5/15/12 compared to peak flow computed of 288 cfs on 5/8/12 (81%)
Site vists to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of greater than 5 weeks.
MPCA site visits did not observe control conditions. DNR visit hit 10 weeks at
one point 5/15/12-7/24/12.
A change in the physical characteristics of the control occurred at some time
during the monitoring season.
Change in control: 5/15/12 and 7/24/12 msmts both indicated vegetation shifts
needed and submerged vegetation was observed in channel.
Adequate flow measurements were not taken to confidently adjust stage during
period(s) of altered control. During the period of vegetation shifts was the
larger gap between site visits so needed another measurement in between those to
structure shifts better. Shift pro-rates from -0.16 to -0.05 ft between
measurements.
The potential error in cumulative flow volume introduced by changing channel
control is less than 15%.
The potential error in cumulative flow volume introduced by changing channel
control is less than 5%. I think the difference between pro-rating 5/15/12 to
7/24/12 and having an additional shift in between would not have done more than
5%.

Precipitation Data Summary
--------------------------------------------------------------------------------
The precipitation record either did not track correctly or was not complete for
some parts of the monitoring season. Gap in data while transitioning from MPCA
operated site to installation of DNR intermediate equipment. (10/22/12-11/21/12)
The overall precip total for the year does not compare well to an adjacent
station. Rain bucket captured 12.5 inches compared to 19.7 inches for same
period (did no
t count 10/22-11/21 gap in the NWS record total). (63%)

At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There was no visual evidence or an indication from analysis of the precipitation
data that the rain gage was plugged at any time during the monitoring season.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was not calibrated within the last three years. The rain gage used
for most of the year was not calibrated within 3 years. The new intermediate
enclosure installed a newly calibrated rain bucket so 2013 will be calibrated.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2012
--------------------------------------------------------------------------------
Flow = Poor Archived Daily Value (QQC=32)
Precip = Poor Archived Daily Value (PQC=32)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2011

Prepared By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@STATE.MN.US)

Approved By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is only collected for a partial year at this site.
Data collection began on 04/05/2011.
Data collection ended on 10/26/2011.
The ice out date cannot be determined.
Snowmelt conditions: Gradual decline from installation with multiple rain events
April/May.
Periods the stream was out of its banks: Out of banks condition noted during
3/24/11 msmt, 4/5/11 PCA inspection. Noted as being out into floodplain and out
into both banks.
Periods of low or no flow: From 10/1/11 until removal on 10/26/11 flows reached
below 5 cfs and close to 0 towards the end of the month.
Significant climatic events: South Central Minnesota

-----------------
Dept. Dept.
Avg. from Avg. from
Temp. Norm. Prec. Norm.
January 8.4 -3.8 1.06 -0.03
February 16.1 -2.6 1.43 0.69
March 27.4 -3.5 1.99 -0.10
April 43.9 -1.5 3.72 0.70
May 56.5 -1.9 4.85 1.04
June 68.1 0.1 6.10 1.46
July 76.5 4.7 5.93 1.60
August 70.4 1.0 0.93 -3.49
September 59.6 -1.2 0.88 -2.10
October 52.3 3.8 0.53 -1.91
November 00.0 00.0 00.00 00.00
December 00.0 00.0 00.00 00.00

The
first half of 2011 saw temperatures that were one and a half to nearly four
degrees cooler than normal in South Central Minnesota. July and October were the
only months notably above average with 4.7 and 3.8 degrees above average
respectively. Precipitation was variable for the first four months of the year
where May through July saw monthly totals one to over one and a half inches
greater than normal. August through October had precipitation totals below
average starting at 3.5 inches below normal in August and almost two inches below
normal for both September and October. Starting off the year, snow depths in the
region were variable with as little as 4 inches in a few of the most southern
counties to above 16 inches in the northwest and southeast areas of the region.
Snow water equivalencies were near two inches or possibly slightly more to being
the year and ended up reaching near four inches before snow melt occurred in the
region. February precipitation in the southern two-thirds of Minnesota was
dropped by a major winter storm that roared through the Midwest on February
20-21. This storm dropped up to 17.5 inches of snow in the southcentral region.
The storm's snowfall contained a high amount of water content, worsening the
potential for spring flooding. Liquid precipitation totals of one to two inches
were reported in many communities. Significant flooding was reported across much
of Minnesota during much of the month of April and stream flows were and remained
in the 90th percentile through August in the majority of the region. A notable
rain event occurred on June 14th and 15th, which saw up to 2.5 inches in the
western part of the region. July 2011 ranked among the ten warmest Julys in
Minnesota's modern record. The month of July was also notable for the intensity,
geographic extent, and duration of high dew point temperatures. Multiple days of
very high dew point temperatures were reported at many locations with dew point
temperatures in excess of 75 degrees. The remainder of the year was warm and dry
as the U. S. Drought Monitor, released on October 27, depicted nearly every
Minnesota county as experiencing some level of drought.
[source: State
Climatology Office ?DNR Waters]

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2011
--------------------------------------------------------------------------------
Flow = Good Archived Daily Value (QQC=30)
Precip = Fair Archived Daily Value (PQC=31)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2009

Prepared By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)

Approved By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is only collected for a partial year at this site.
Data collection began on 03/17/2009.
Data collection ended on 10/13/2009.
The ice out date cannot be determined.
Snowmelt conditions: A couple rain events in the last half of March brought a
rise in stage but nothing looks like influenced snow melt.
The stream was in its banks during the entire year. Had a measurement close to
the peak in march and was not close to being out of banks.
Periods of low or no flow: Most of the summer was low (below 5 cfs) with a few
rain events throughout the year. The low flow periods were 5/24-6/16, 7/8-8/25,
9/2-10/6.
Significant climatic events: 2009 Climate Summary
Southeastern MN

The year
began with the the coldest January statewide since 1994. Winter precip totals
were generally near average in southeast MN following late February snowstorms.
In sharp contrast with the rest of the state, March and much of April were dry
months in southeast MN. Rain events towards the end of April decreased the
precipitation shortfalls. Monthly mean temperatures for May and June 2009 were
well below historical averages in most of the region. July was a dry month
across nearly all of Minnesota and continued the cooler than normal trend of the
previous two months, partially slowing precipitation deficits in the region.
However, September temperatures were relatively warm and precip totals were well
below normal, amplifying drought conditions in the area. In southeast Minnesota,
16-month precipitation deficits led to a significant impact on hydrology. In
contrast, October 2009 precipitation was very heavy across most of Minnesota.
Monthly precipitation totals in the southern two-thirds of the state ranged from
five to eight inches, topping historical October averages by three to five
inches. On a statewide basis, October 2009 will rank among the wettest Octobers
ever. It was also among the coldest Octobers of the modern record, averaging
four to seven degrees below historical averages across the region, improving
drought conditions. November 2009 precipitation was quite light across most of
Minnesota. Monthly precipitation totals fell short of historical averages by
one-half inch to one and one-half inches in most locales. In contrast to a very
cold October, monthly mean temperatures for November 2009 were quite mild.
November mean temperatures across Minnesota ranged from nine to twelve degrees
above historical averages, making November 2009 the third warmest November in
history on a statewide basis. Ice in occurred in late November through most of
the state.

[source: State Climatology Office - DNR Waters]

2)Estimated data 6/11-6/25
using reference trace, Straight River nr Faribault.
Also used rainfall reference
trace from Morristown.
Rainfall on 6/16 and 6/17, under 1 inch, and 0.37 on
6/21. TS 12/9/09

Stage either did not track correctly or was not complete during some or all
moderate to high flow periods this season. The estimation in April occurred
during a period of moderate to high flows.
Incorrect or missing stage values were accurately adjusted or estimated using a
technique that introduced less than 15% error in total seasonal flow volume.
Refer to previous answer 2 questions prior.
Other stage data collection factors: No additional factors besides the two
aforementioned estimations.
7 flow measurements were taken during the monitoring season. 3/31, 5/5, 6/8,
7/16, 8/18, 9/24, 10/27
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control. Highest measured stage was 13.3 ft on
3/31, previous highest measured stage was 13.86 ft on 4/29/08.
Flow measurements were taken this year with a maximum frequency of 4-5 weeks or
with a frequency that accurately reflects seasonal conditions.
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge. Highest measured flow for 2009 was 138 cfs
on 3/31/09, highest recorded estimated flow was 195.6 cfs on 3/25/09 (70.5%)
The rating is well developed when considering both quality and quantity of
measurements. In addition to a very nice collection of measurements in the
moderate to high flow range, we used modeled flows to flesh out the very high end
of the rating from FEMA studies.
Site vists to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
No change in the physical characteristics of the control occurred during the
monitoring season. Control at this site is a dam in Morristown, it is sometimes
susceptible to vegetation building up but this did not occur significantly this
year.

Precipitation Data Summary
--------------------------------------------------------------------------------
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season.
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was not calibrated within the last three years.

--------------------------------------------------------------------------------
Data Quality for Calendar Year 2009
--------------------------------------------------------------------------------
Flow = Good Archived Daily Value (QQC=30)
Precip = Fair Archived Daily Value (PQC=31)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2008

********************************************************************************
MPCA/DNR Cooperative Stream Gaging Year End Summary Report
Station: H39091001 - Cannon River at Morristown, CSAH16
Year: 2008
Station Manager: TSCHAUL 
Data Manager: DAHENELY

Prepared By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)

Approved By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)
********************************************************************************

Climate Summary
--------------------------------------------------------------------------------
Data is only collected for a partial year at this site.  
Data collection began on 04/01/2008.  
Data collection ended on 10/13/2008.  
The ice out date cannot be determined.  
Snowmelt conditions:  Logger began in April so not much data for a snow melt but
April began with a sharp rise in stage with not much rain during that period so
could be construde as a snowmelt and is quite sharp. 
The stream was in its banks during the entire year.  
Periods of low or no flow:  Yes, very much so. After 8/24/08 flow does not rise
above 2.5 cfs, with most of the end of the year under .5 cfs. Dam observed as
having no water flowing over the top, small diversion through the mill allowing
some flow.
Significant climatic events:  The drought-like conditions of the late summer
impacting the flows significantly. Spring runoff event and multiple rain events
in April kept the flows high into early March. Another large rain event on
6/20/08 caused the other long surge of flow for the year.


Flow Data Summary
--------------------------------------------------------------------------------
Site vists to determine if the logger was tracking stage correctly were done at a
frequency of 8 weeks or less.  
The stage record tracked correctly and was complete for the entire monitoring
season.  Only a small 1 day gap had to be estimated using 170's, and the
conditions were very unchanging. 
Other stage data collection factors:  Equipment located up upstream bridge of the
dam, during summer months of low flow no water tops the dam. Also lots of
duckweed can accumulate on the dam during this time.
8 flow measurements were taken during the monitoring season.  4/4/08, 4/29, 5/28,
6/24, 7/22, 8/20, 9/17, 10/15
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control.  High end of rating that was above
measured stages was created based on FIS study for the upstream bridge.
Flow measurements were taken with a maximum frequency of 4-5 weeks or with a
frequency that accurately reflects seasonal conditions.  
Flow measurements cover a wide range of flows, up to at least 70% of the highest
recorded seasonal/annual discharge.  Highest measured flow was 326 cfs, whereas
the highest recorded for the year was 334 cfs. (98%)
The rating is well developed when considering both quality and quantity of
measurements.  Mid-range flows have a fair amount of points to make it developed
fairly well, and high end was created based on an FIS study at the upstream
bridge where the equipment is.
Site vists to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.  
A change in the physical characteristics of the control occurred at some time
during the monitoring season.  
Change in control:  Beginning in end of July and carrying out until the end of
the year was a very minor depositional shift, likely caused by vegetation
(duckweed) building up on the dam.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.  


Precipitation Data Summary
--------------------------------------------------------------------------------
At least three field visits were made to check the rain gage for obstructions
during the monitoring season.  
There is either visual evidence or an indication from analysis of the
precipitation data that the rain gage was plugged at some point during the
monitoring season.  
The period of record when the rain gage was plugged was accurately determined and
removed from the corrected data.  
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.  
The rain gage was calibrated within the last three years.  


Water Quality Data Summary
--------------------------------------------------------------------------------
16 samples were collected at this site during the monitoring season.  15 sets of
samples, 1 set of field duplicates and 1 set of sampler blanks were collected
during the monitoring season.
Sample distribution on Hydrograph:  The rising limb of all three larger events
were captured.  The June event was captured well.  The event at the end of April
aslo captured the falling limb.  Baseflow coverage was okay.
BOD, TSS, Turbidity, E.coli, TP, OP NO2-NO3 and TKN were analyzed using a
laboratory.  
Water temperature and transparency tube were analyzed using field meter(s). 
Appearance and recreational suitability were also observed.


--------------------------------------------------------------------------------
Data Quality for Calendar Year 2008
--------------------------------------------------------------------------------
Flow   = Good Archived Daily Value (QQC=30)
Precip = Good Archived Daily Value (PQC=30)
-------------------------------------------------------------------------------- - EnteredBy - YESAPP

Year End Summary for 39091001

Year End Summary for 2007

Prepared By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)

Approved By:
Daniel Henely (dahenely)
651-259-5712 (DANIEL.HENELY@DNR.STATE.MN.US)
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Climate Summary
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Data is only collected for a partial year at this site.
Data collection began on 06/01/2007.
Data collection ended on 10/27/2007.
The ice out date cannot be determined.
Snowmelt conditions: Logger started in June, no snowmelft condition data
available.
The stream was in its banks during the entire year.
Periods of low or no flow: 7/10 to 7/26 the dam was noted as having no water
flowing over it, there was still a very minute amount of flow coming through the
dam/mill. A couple rain events caused the stage to rise but it fell into the <5
cfs region a few times until 8/18/07 where it rose and stayed up DDH
Significant climatic events: Some June peaks of stage possibly, but a very large
5 inch rain event on 8/19/07 that peaked on 190 cfs. The drought in July/August
caused the stage to drop so low the dam had no water flowing over it. (7/10-7/26
especially)

Flow Data Summary
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Site vists to determine if the logger was tracking stage correctly were done at a
frequency of 8 weeks or less.
The stage record either did not track correctly or was not complete for some
parts of the monitoring season. 6/6-6/13 had to be estimated soon after logger
installed, and 10/5/07 onward was estimated to encompass PCA inspections
Stage either did not track correctly or was not complete during some or all
moderate to high flow periods this season.
Incorrect or missing stage values were not accurately adjusted or estimated using
a technique that introduced less than 15% error in total seasonal flow volume.
Traced a nearby gage for the June estimation but that was still not as reliable
as <15%, and the end of the year estimation was connecting inspection points from
both DNR and PCA.
Other stage data collection factors: Logger was initially installed downstream
of the dam, and was switched to a bridge upstream of the dam's reservoir
mid-year. A linear regression using a comparison of measure-downs and staff gage
readings at the dam was used to convert the datums. (Note this is not a 100%
accurate method as the reservoir can fluctuate across the expanse of the
reservoir)
7 flow measurements were taken during the monitoring season. 5/3, 5/24, 6/19,
7/24, 8/21, 9/21, 10/24
All recorded stage values were within the rating or less than 1 foot above the
rating with no change in channel control. High end rating points estimated in
2009 for 2007 and 2008 created based on FIS studies for the bridge with the
mounted eqiupment.
Flow measurements were taken with a maximum frequency of 4-5 weeks or with a
frequency that accurately reflects seasonal conditions.
Flow measurements cover less than 70% of the highest recorded seasonal/annual
discharge. Highest measured flow was 235 cfs and highest recorded was 450 cfs.
(52%)
Flow measurements cover up to or above 50% of the highest recorded season/annual
discharge. Highest measured flow was 235 cfs and highest recorded was 450 cfs.
(52%)
This is a stable site. Control is a dam with a reservoir. Equipment ~1 mile
upstream of the dam.
The rating is well developed when considering both quality and quantity of
measurements. Good low flow range measurements and a few mid-range. Upper end
developed with a model from a FIS study so also reliable.
Site vists to determine if the physical characteristics of the control changed
during the monitoring season were done at a frequency of 5 weeks or less.
A change in the physical characteristics of the control occurred at some time
during the monitoring season. Some very minor scours evident after updating the
rating and taking into consideration 2008 points. Attributed to rain events
scouring out a little sediment in the reservoir and at the dam control. Washing
out vegetation also a possibility.
Change in control: Refer to above.
Adequate flow measurements were taken to confidently adjust stage during
period(s) of altered control.

Precipitation Data Summary
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At least three field visits were made to check the rain gage for obstructions
during the monitoring season.
There was no visual evidence or an indication from analysis of the precipitation
data that the rain gage was plugged at any time during the monitoring season.
There were no vertical obstructions near the rain gage that may have compromised
recorded rainfall values.
The rain gage was not calibrated within the last three years.

Water Quality Data Summary
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21 samples were collected at this site during the monitoring season.
Sample distribution on Hydrograph: Peaks of the events were missed throughout
the sampling season. The rising and falling limb of the large event at the end
of August was sampled very well. One event at the end of July was missed along
with an event at the beginning of August.
BOD, TSS, Turbidity, E. coli, TP, OP, NO2-NO3 and TKN were analyzed using a
laboratory.
water temperature and transparency tube were analyzed using field meter(s).
Appearance and recreational suitability were also observed.

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Data Quality for Calendar Year 2007
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Flow = Poor Archived Daily Value (QQC=32)
Precip = Fair Archived Daily Value (PQC=31)
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