Jul 30, 2015; 9:09 AM ET Thunderstorms could fire up this afternoon, bringing heavy rainfall to Florida and the Southeast.
The risk of drenching and locally gusty thunderstorms has expanded to parts of Southern California, Arizona and Nevada.
Storms that brought gusty winds and heavy rainfall to the Upper Midwest on Tuesday will shift eastward to the Ohio Valley into Wednesday evening.
The threat for severe thunderstorms in the North Central states will shrink to parts of the central Plains Tuesday night with locally heavy storms farther to the northeast.
There is a distinct difference between a watch and a warning, and knowing the difference can save your life.
A major severe weather event is set to unfold across the northern U.S. Plains and Canadian Prairies on Monday night with the potential for large and damaging tornadoes.
A potent storm system swinging across the northern Plains, the Upper Midwest and neighboring Canada will spark severe storms through Friday night.