Year End Summary for 2017
******************************************************************************** MPCA/DNR Cooperative Stream Gaging Year End Summary Report Station: H39042001 - Straight River at Owatonna, W Bridge St Year: 2017 Station Manager: ANLINDLO Data Manager: WYNAILL Prepared By: Wyatt Naill (wynaill) 651-539-2114 (Wyatt.Naill@state.mn.us) Approved By: Jacob Kolke (jakolke) 651-539-2130 (JACOB.KOLKE@STATE.MN.US) ******************************************************************************** Climate Summary -------------------------------------------------------------------------------- Data is collected year round at this site. The ice out date was 03/19/2017. Snowmelt conditions: N/A Site is a Flood Warning Gage so ice data is deleted and flows are not calculated 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: 2017 Climate Summary - South Central 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=39042001 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 -------------------------------------------------------------------------------- But gage was shut down on 05/24/2017 then turned on again on 12/19/17 due to a gap in the contract. Site visits to determine if the logger was tracking stage correctly were done at a frequency greater than 8 weeks. Site is a Flood Warning Gage so site visits are typically only made twice a year. The stage record either did not track correctly or was not complete for some parts of the monitoring season. The gage was shut down on 05/24/2017 and then turned on again on 12/19/17. Stage either did not track correctly or was not complete during some or all moderate to high flow periods this season. The gage was shut down on 05/24/2017 and then turned on again on 12/19/17 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. Site is a Flood Warning Gage so there is no rating or flow calculations Other stage data collection factors: No logging after 05/24/2017 until 12/19/2017 0 flow measurements were taken during the monitoring season. Some recorded stage values were above the rating by a value greater than 1 foot, or less than 1 foot with a change in channel control. Site is a Flood Warning Gage so there is no rating or flow calculations The present rating cannot be accurately extrapolated or modeled to the highest recorded stage values. Site is a Flood Warning Gage so there is no rating or flow calculations 15% or more of the seasonal flow occurred during the period when the rating was exceeded. Site is a Flood Warning Gage so there is no rating or flow calculations Site visits to determine if the physical characteristics of the control changed during the monitoring season were done at a frequency of greater than 5 weeks. Site is a Flood Warning Gage so site visits are typically only made twice a year. No change in the physical characteristics of the control occurred during the monitoring season. Unknown. No flow measurements were made during this monitoring season. Precipitation Data Summary -------------------------------------------------------------------------------- Until 05/24/2017 when the logger was shut down and wasn't turned on again until 12/19/2017 due to a gap in the contract being renewed. The precipitation record either did not track correctly or was not complete for some parts of the monitoring season. Monitoring ended on 05/24/2017 The overall precip total for the year does not compare well to an adjacent station. Site is a Flood Warning Gage so precip data is not compared to anything Less than three field visits were made to check the rain gage for obstructions during the monitoring season. Unknown as Rainbucket is Department of Agriculture owned and was not always checked by DNR Staff 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 vertical obstructions near the rain gage that may have compromised recorded rainfall values. Trees are right above the rainbucket The rain gage was not calibrated within the last three years. Unknown as Rainbucket is Department of Agriculture owned Water Quality Data Summary -------------------------------------------------------------------------------- No water quality samples were collected at this site during the monitoring season. -------------------------------------------------------------------------------- Data Quality for Calendar Year 2017 -------------------------------------------------------------------------------- Flow = Unknown Archived Daily Value (QQC=33) Precip = Unknown Archived Daily Value (PQC=33) -------------------------------------------------------------------------------- - EnteredBy - YESAPP