A polar vortex is currently hitting the United States ... According to the Windy weather map, temperatures are currently freezing or below in most of the United States, with the coldest ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

10th polar vortex of the season hits the U.S. Here’s what to know With record snow in New Orleans last month and drought and destructive wildfires in Southern California, this winter has not ...

An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.

"The large polar vortex disruption from the second week of ... Tuesday's low temperature map shows readings bottoming out in the 20s and 30s across much of the north-central and eastern US.