Month-to-date temperature analysis shows that February 2025 has been the coldest in the U.S. has seen in 15 years. In 2010, the temperature anomaly was 4.1° below average. Currently, February's ...

Parts of northern Wyoming that broke records for cold on Thursday hit 58 on Sunday. That’s a huge 85-degree swing in just ...

This is what a split in the polar vortex looks like! Highlighted by the red boxes, you can see two distinct circulation centers, versus strictly one. This allows for cold air to flood southward ...

The storms won't be severe, but mark another milestone as Chicago begins to turn the page from winter to spring.

January marked the coldest January in the contiguous United States in decades, mostly due to a distorted polar vortex that ...