Year End Summary for 2019
YEAR END SUMMARY STATION NAME: Roseau River at Roseau, CSAH72 STATION NUMBER: H71035001 YEAR: 2019 PREPARED BY: Ryan Whittaker (ryan.whittaker@state.mn.us) CLIMATE SUMMARY: Division 1, 2019: Cold and stormy conditions from the end of January through April contributed to seasonal snowfall totals of 55 to 85 inches, 60-100% above 1981-2010 averages. The first four months of the year were 6 degrees F below average, with a deficit of 11.7 degrees in February. The May - September growing season was slightly cooler than average, and began dry but ended wet, with 30% deficits in May and June giving way to 45% surpluses from July through September. Heavy and excessive rain fell on September 20-21 with 2-4 inches in most areas and isolated totals approaching six inches. Cool and wet conditions continued into October, with a heavy precipitation event and early blizzard on the 10th-12th, although the seasonal snowpack was not established until the middle to end of November. GAGE OPERATION SUMMARY: Is this site monitored year round? NO Open water dates- estimated Ice out and Ice in: 4/6/19 - 11/5/19 Open water sites ONLY: Period of data record (if different from ice out/ice in dates): 4/6/19 - 10/31/19 Summary of equipment-related factors that impacted data collection: The gage is visited minimally during the year, usually in the spring and fall to check the gage and take a flow measurement. The gage may have also been visited during high flow events. Number of flow measurements for monitoring season: 2 Was the full range of flows measured for the season? No, this is a flood warning gage and stream flow measurements are limited. DISCHARGE SUMMARY: Was a new rating developed? NO. Rating 3 was created starting at the 2016 data season, but 2015-2019 measurements were used for rating development. General summary of control changes/shifts needed: Due to the limited visits, the timing of the control changes cannot be determined. Quality of computed daily discharges: The minimal site visits do not meet our criteria to calculate a reliable discharge record. There is too much uncertainty in the record and any computation would not meet our quality standards for a computed discharge record. PRECIPITATION DATA OVERVIEW: Was precipitation data collected at this site? YES Climatological liquid precipitation period: 6/1/19 - 10/11/19 Was there a complete and acceptable precip. record for this period? YES. The precipitation record is complete and all data during the liquid precipitation period was accepted.