“Armistice Day Storm: November 11, 1940
Jeff Boyne, NWS La Crosse, WI
On November 11, 1940, a rapidly deepening low pressure system moved northeast from Kansas City, MO northeast through the Upper Mississippi River Valley and into the Upper Great Lakes. This low pressure area produced the lowest pressure reading ever recorded up to this time at Charles City, IA (28.92 inches), La Crosse, WI (28.72 inches), and Duluth, MN (28.66 inches). Armistice Day (now known as Veteran’s Day) began with blue skies and temperatures in the 40s and 50s. The weather forecast for that morning was for colder temperatures and a few flurries. The day was so nice that duck hunters dressed in short-sleeved shirts rushed to the marshes along the Mississippi River early that morning.
During the late morning and early…
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