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Thunderstorms and Heavy Rain Across the Southern and Eastern US; Heat and Fire Weather Concerns in the West

Showers and thunderstorms are expected across the southern and eastern US this week, with heavy rain and localized flooding, particularly near the Gulf Coast. Monsoonal moisture will bring rain and potential flooding to parts of the Southwest. Heat and fire weather threats will continue to impact the West. Read More >

Overview

A powerful Arctic cold front surged into the Midwest on Thursday, December 22nd, bringing snow, strong winds, and bitterly cold temperatures in its wake. While snowfall accumulations generally only ranged between 1 and 5 inches, a rapidly deepening area of low pressure associated with the front caused strong winds that gusted in excess of 50 mph at times and produced substantial blowing and drifting snow that led to blizzard conditions at times. Additionally, the frigid temperatures with wind chills as low as -40F mitigated the effectiveness of road treatments and allowed for many roadways to remain snow and ice-covered into Friday, December 23rd even though most of the snow had ended Thursday evening.

The reduced visibilities and slippery roadways contributed to numerous automobile accidents on both days, which caused portions of I-65 and I-94 in northwest Indiana to be shut down for several hours. The cold and snowy conditions also disrupted train and air transportation before the holiday weekend, with several trains and flights being delayed or cancelled.

Summary Image or Photo
Summary of impacts from the December 22-23 Winter Storm
Summary Image or Photo
Photo of reduced visibility due to blowing snow at NWS Chicago during the afternoon of 12/23/2022. 
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Additional recaps can be found on the NWS Chicago Science & Past Events Page.

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