Track everything from current conditions, forecasts and potential impacts from the severe weather outbreak here.

More than 1,000 tornadoes roar across the United States in an average year, causing billions of dollars in damage and killing scores of Americans. Track them here.

Storms bringing damaging winds and hail threaten the South and Midwest while winter weather hits Wyoming, impacting travel.

The stratospheric polar vortex, the winter engine that traps Arctic cold high above the North Pole, is entering its seasonal collapse. What’s left is the lower-level polar vortex core, lingering over ...

There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really interesting. Major upper-air pattern changes are quite normal. Sometimes we have ...