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

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

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

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 ...

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 ...

The squall line is now past Tallahassee and the severe weather warning has expired, but forecasters have extended a tornado watch until 3 p.m. for the area. The storm has spawned radar indicated ...

Multiple more dangerous tornado warnings were also issued throughout Saturday. (The National Weather Service maintains a list of current tornado alerts, which change frequently as tornado threats ...