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 ...

The Northeast has seen wild temperature swings — from record 80s one day to snow showers the next. Scientists say weather patterns like cold fronts and climate factors help explain it.

After our mid-week temperature drop, there is strong signal for a few additional weather systems to track through the Upper ...

The United States is experiencing a variety of extreme weather conditions, including record heat in the Southwest, heavy ...

Winter featured record-shattering warmth in the West and bitter cold in the East. But now, the opposite pattern is set to take hold, at least for the near future.

A tornado outbreak has left at least six people dead and caused significant damage as severe weather moved from the South to the Midwest.

A major winter storm is impacting much of the nation east of the Rocky Mountains. The storm's intensity is caused by a combination of a stretched polar vortex, a wavy jet stream, and moisture from the ...

Last week, Southwest Colorado saw enough snow to cancel school and snarl travel. A week later, winter appears to have vaporized – replaced by clear skies, dry roads and temperatures warm enough for ...