Meteorologists say the United States is getting hit by almost every kind of extreme weather at once, as spring air masses collide and the jet stream twists ...

Add Yahoo as a preferred source to see more of our stories on Google. A split jet stream over the Pacific Ocean will help amplify a ridge of high pressure near the West coast, keeping California warm ...

Was there a Supercell over the weekend? So, did the UK experience a supercell thunderstorm? The answer, in fact, is yes, at least one storm bore the hallmarks of a supercell, and possibly more.

WASHINGTON(AP) — Nearly every type of wild weather hit some part of the United States on Monday as the normal changing seasons clash of cold and warm air collided with a jet stream gone crazy and a ...