Hydrologic Outlook National Weather Service Duluth MN 337 PM CDT Fri May 6 2022 ...EXPECT A PROLONGED PERIOD OF HIGH WATER AND FLOODING WITHIN THE RAINY LAKE BASIN... Spring snowmelt plus well above normal April precipitation has created a strong hydrologic response within the Rainy Lake basin. Many tributaries to Rainy Lake and the Rainy River are at their crest after weekend rains. Lake rises within the Rainy Lake Basin are ongoing and are expected to continue for at least the next week to ten days. Snowpack still exists in the basin, and with warmer temperatures and rainfall in the forecast expect increasing water levels. At 2:15 PM, Friday, May 6th the Namakan Lake level was 1117.93 feet. In 2014 the highest lake level was 1120 feet. A record level was set on Lake Namakan in 1950 when it reached 1122.70 feet. Maximum releases from dams on Namakan Lake and Rainy Lake are planned in an effort to slow surging lake rises. This will cause an increase in the level on the Rainy River. Expect high water levels within the Rainy Lake system for the next several weeks. For more details about this ongoing situation find our news headlines at www.weather.gov/dlh
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