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

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

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy ...

A massive storm developing today is set to bring life-threatening tornadoes and potentially historic floods in what could be ...

Another massive storm is set to bring life-threatening tornadoes and potentially historic flooding to several states ...

Much of the U.S. has seen a major dip in temperatures combined with winter storm conditions over the weekend, thanks to an expansion of the polar vortex—the area of cold air that circulates around the ...

Have you noticed New York City has felt especially windy lately? You’re not imagining it. This March, NYC has been stuck in a ...

Several days into spring, wintry weather will linger as a cold air mass settles in.AccuWeather’s long-range experts say that ...

Several days into the start of spring, wintry weather has returned following the arrival of a cold air mass.AccuWeather’s ...

You can get in touch with Anna by emailing [email protected]. The National Weather Service (NWS) is suspending more weather balloon observations, a critical tool in forecast ability ...

A polar vortex is a large area of low pressure and cold air that surrounds the Earth’s poles, according to the National Weather Service. Polar vortexes typically develop in September and ...