Thunderstorms need moisture, energy — which meteorologists call instability — and some sort of lift to form. Usually, the lift comes from cold and warmer air masses colliding along a line called a ...

Attribution researches the influence of climate change on local weather and impacts. We issues alerts in many instances when the Climate Shift Index identifies a notable extreme weather event around ...

A new study offers some of the first evidence that this weather-related condition is a concern in the United States. But there are ways to lower the risk. A new study suggests that severe ...

Thunderstorm clouds have a lot of air moving around inside them, including updrafts and downdrafts, which can be strong. Updrafts transport tiny drops of rain and ice crystals to the top of the ...

Riverside and La Paz counties are included in an updated severe thunderstorm warning issued by the National Weather Service on Monday at 8:52 a.m. The warning is in effect until 9:30 a.m. Wind gusts ...

Hurricane Erin is bearing down on much of the U.S. right now, causing heavy rains, rip tides, and severe thunderstorms. Of course, you know with weather like this to keep out of the ocean, bring your ...

5 Freeway north of LA is included in a report for strong thunderstorms by the National Weather Service on Monday at 12:35 p.m. The alert is in effect until 1:15 p.m. The storms may bring pea-sized ...