Central Indiana once again had highs around 40° on Saturday. However, this was early, around 12-1 a.m., before a cold front passed through. Temperatures slowly fell with afternoon highs only in the 30s.

Any sort of wind along with the bitter cold will make for frostbite in as little as 15 to 20 minutes in the incoming arctic cold. Our long-range forecast models are continuing to pump in wind chill temperatures between -15° and 0° consistently each morning Monday through Wednesday.

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is always present near the poles, though it weakens during summer and intensifies in winter.

Editor's Note for Sat. Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States in ...

Polar Plunge season is Jan. 31 through March 1 with 19 events across Indiana. More than 3,400 Plungers raised $1.16 million last year to benefit 19,000 athletes across

Special Olympics Indiana has entered its 26th year of daring Hoosiers to “Be Bold and Get Cold.” The 2025 Polar Plunge season will begin on Friday and is set to reach Fort Wayne on Feb. 8 at 10 a.m. Participants are asked to raise at least $99 before hitting the water.

The polar vortex, a swirling mass of cold air located over the polar regions, is responsible for the cold. COLUMBUS, Ohio — An Arctic blast arrived in central Ohio on Monday, bringing with it the coldest air that central Ohio has felt in more than two years.