South Dakota Weather Alert: 40 MPH Winds and -20° Wind Chills Forecast for Wednesday Night

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Cold week ahead
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Sioux Falls, SD — A dramatic cold front will sweep through South Dakota on Wednesday, bringing dangerous winds, plummeting temperatures, and scattered flurries. Wind gusts up to 40 mph are expected, creating hazardous conditions, especially for drivers along the I-29 corridor.

According to the National Weather Service, temperatures will briefly peak near 31°F on Wednesday morning before plummeting into the teens by evening. Wind chills could reach as low as -20°F by early Thursday morning. Residents should prepare for bitterly cold conditions, secure outdoor items, and avoid unnecessary travel during peak wind periods.

The cold front is expected to bring isolated flurries throughout Wednesday morning, with visibility potentially reduced during gusty conditions. Windy conditions will subside Thursday, but frigid air will remain, with highs barely reaching 23°F. By Friday, a gradual warm-up begins, with highs near 36°F under sunny skies.

For those planning travel, the National Weather Service advises caution, particularly on elevated roadways and open areas where sudden crosswinds are likely. Secure loose outdoor decorations or trash bins to prevent property damage.

Looking ahead, the weekend offers a reprieve with milder temperatures. Saturday’s high will reach 42°F, accompanied by mostly sunny skies. This warming trend continues into Sunday, with highs climbing into the mid-40s.

Residents should stay updated with the latest forecasts and alerts through the National Weather Service or local news channels. Prepare for the sharp temperature swings and bundle up as South Dakota transitions into a frigid midweek stretch.

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