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

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

The movement and weakening of the polar vortex will help to push back warm ... Snow is forecast to largely avoid the major Midwest cities of Chicago and Detroit, as well as the Northeast metro ...

However, Accuweather's Long-Range Team continues to monitor the pent-up polar vortex, and there are signs ... in the 50s and 60s much of this week in Chicago, with the same in store for Detroit ...

The polar vortex always exists around the North and ... those upcoming late blasts of winter could actually reach parts of Chicago, Detroit, and New York City, bringing measurable snowfall to ...

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 ...

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 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 large polar vortex disruption from the second week of ... where it will feel more like late February in Chicago and New York early next week as highs drop into the 30s and 40s," Savona ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.