Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...

NOAA weather models predict Wednesday lows below zero in Oklahoma, Colorado, Nebraska ... Obviously this isn’t the first polar vortex episode of the winter, but it looks to be the most severe.” ...

BISMARCK, N.D. (AP) — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the ... Authorities in Colorado reported eight people were killed in fatal vehicle ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...

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 ...

A polar vortex collapse has been forecast to hit within weeks. The weather phenomenon will hit in mid-March and will affect the United States and Canada predominantly. It will be the second ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March ...