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2024 Hennepin County All -Jurisdiction Hazard Mitigation Plan <br />Volume 2 — Hazard Inventory <br />1/22/1917 <br />16.0 <br />3/4/1985 <br />16.7 <br />3/29/1924 <br />12.0 <br />3/31/1985 <br />14.7 <br />3/13/1940 <br />15.6 <br />12/1/1985 <br />15.9 <br />11/12/1940 <br />16.7 <br />11/1/1991 <br />26.7 <br />3/23/1952 <br />14.1 <br />11/30/1991 <br />14.3 <br />3/12/1962 <br />12.7 <br />3/9/1999 <br />16.0 <br />3/18/1965 <br />12.2 <br />12/11/2010 <br />17.1 <br />3/23/1966 <br />13.6 <br />2/21/2011 <br />13.8 <br />Additionally, some smaller snowstorms have also produced blizzard conditions in Hennepin County. <br />Notable recent examples include March 1-2, 2007, and February 21, 2014, when 6-12 inches of snow were <br />finished off with 25-40 mph winds. Following are more detailed accounts of some of the area's most <br />noteworthy winter storms. <br />The Armistice Day storm of November 11, 1940 <br />is the defining blizzard of the 20th century in Minnesota and remains the storm against which all <br />other blizzards in this state are compared. It was a high -impact, high -mortality blizzard affecting <br />a huge swath of Minnesota, Wisconsin, Iowa, and the Dakotas. <br />The storm began as a low- <br />pressure area over Colorado on <br />the morning of November 10, <br />which then swung <br />northeastward and intensified <br />rapidly as it passed over La <br />Crosse and eventually Lake <br />Superior on the 12th. <br />Initially warm conditions gave <br />way to rapidly falling <br />temperatures, and rain turning <br />to extremely heavy windswept <br />snow. Winds were sustained <br />above 30 mph over much of <br />Minnesota, with gusts exceeding <br />65 mph in some areas. Snowfallr,°,.�a.- <br />rates at times were as high as Surface pressure chart on November 11, 1940 <br />three inches per hour. Snowfall <br />totals of 15-25 inches were common across Minnesota, including Hennepin County. <br />The long duration of the storm, combined with its rapid onset and its severity contributed to <br />174 <br />