An unusually extended Pacific jet stream could bring larger swings between cool and warm weather to California in the coming weeks.

A persistent wildfire and fire weather threat is impacting portions of the Southwest and Central Plains this week due to an upper-level trough in the atmosphere. That trough is allowing the jet ...

An Omega Block weather pattern is causing varied weather across the United States this week. This pattern creates a high-pressure zone in the center of the country, bringing heat, and low-pressure ...