The extreme weather is being caused by the polar vortex, an area of cold air that circulates around the Arctic.

From snow, to high winds, to extreme cold, much of Canada is under a severe weather alert this weekend. Here's what to expect in your region.

There was a tornado watch for Mecklenburg and surrounding counties until 1 p.m. One person reported killed in Iredell from ...

where several tornado warnings have been issued, including near Tallahassee. Tornado warnings have also been issued for parts of South and North Carolina. At 9 a.m. Sunday ET, nearly 65,000 ...

Environment Canada has issued significant rainfall warnings across much of southern Ontario, including Toronto and its ...

The Upstate area of South Carolina could see some scattered showers Sunday after an active morning with several tornado warnings in the area and region. The warnings began around 6:15 a.m. and ...

No more tornado warnings in our area as of 9:08 a.m. Sunday. For what the rest of Sunday will look like, click here. Cherokee County remains under tornado warning until 9:15 a.m. 8:35 a.m. Tornado ...

A strong storm system threatened to whip up tornadoes in parts of the U.S. Southeast on Sunday, a day after severe weather claimed ... issued severe thunderstorm warnings across portions of ...

“The frozen ground has a reduced ability to absorb this rainfall,” the weather agency said in a post on its website after issuing a rainfall warning. “A low-pressure system will bring ...

JEFFERSON COUNTY, Texas — A large tornado touched down southwest of Port Arthur Saturday afternoon, resulting in urgent warnings for residents across Jefferson County to seek immediate shelter.

On Sunday at 7:21 a.m. an updated tornado warning was issued by the NWS Greenville-Spartanburg SC. "At 7:20 a.m., a severe thunderstorm capable of producing a tornado was located 9 miles south of ...