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 ...

WASHINGTON (7News) — After our coldest December in 15 years and the cold start to the new year our pattern is about to change! This Weekend 1-3-26 As we head into next week, a major pattern shift is ...

In the United States, our weather patterns usually travel from the west to the east. Sometimes, we can see variations in that a system will move in from the northwest or southwest, but Missourians ...

Something unsettling is happening in the skies after dark. Meteorologists, climate scientists, and emergency managers are ...

Tornadoes, winter storms and even hurricanes - chances are you've heard at least one of those phenomena mentioned in the same sentence with the jet stream. The basic trough and ridge pattern of a jet ...

If the cool weather the moved across West Michigan Sunday has you doing a double-take at the calendar, it's not surprising. Having high temperatures in the lower 70s and low temperatures in the 40s is ...

WE’RE USED TO THAT. CHALLENGING AT TIMES. EXACTLY. IT’S BEEN A CHILLY JANUARY, AND IT LOOKS LIKE THIS IS GOING TO ROLL ON. IN FACT, WE PROBABLY HAVE NOT EVEN FELT THE COLDEST AIR OF THE SEASON YET.

While much of the eastern U.s. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of unseasonable warmth, which has left many mountain ranges in a snow drought. A major ...

The weather pattern may turn active again around Easter weekend across Indiana. We’re closely watching the jet stream as it stirs up the potential for thunderstorms—especially heading into Good Friday ...

Two weather patterns played out in 2025 that had huge implications for our country's weather. One of them helped spare the U.S. mainland from a landfalling hurricane, while the other helped produce ...

Rossby waves are the large bends or meanders in the jet stream. When the jet stream dips southward, meteorologists call it a trough, which typically allows colder air to spill southward. When the jet ...