National Weather Service United States Department of Commerce


A unique day of weather unfolded across all of eastern Iowa, northwest Illinois and far northeast Missouri. Strong low pressure developed over the Plains and quickly traversed into the Upper Mississippi River Valley, producing very strong winds and record warmth across the Midwest. All climate sites in our area set new record high temperatures, and either broke or tied all-time record December highs.

In addition to the warmth, severe thunderstorms occurred across the area during the evening. Winds were the primary concern, with gusts of 60-80 MPH measured from Benton county into the Quad Cities metro. Several reports of damage were also received, with numerous power outages.

Surface Analysis: Weather Prediction Center (WPC)
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