Seemingly unrelated weather systems illustrate how connected we are by larger patterns that move around in our atmosphere.

Weather is never random. Every unusual storm, every record-breaking heat wave, every flood that seems to come out of nowhere ...

Across the Northern Hemisphere, familiar seasons are starting to feel unfamiliar. Heat waves linger, cold snaps arrive out of sync, and storms stall over the same unlucky regions. At the heart of this ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. While March is normally a volatile month for weather across the United States, this month seems to be especially off the rails, ...

When Punxsutawney Phil popped up and saw his shadow on Feb. 2, a collective groan rippled across the Eastern United States, where freezing temperatures, ice and snow have cast a big chill for days.

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 ...

While March is normally a volatile month for weather across the U.S., this month seems to be especially off the rails, weather-wise.