As heat blasts the Southwest, a polar vortex is forecast for the Midwest and East. Snow is expected in the Great Lakes, and an atmospheric river is on tap for Hawaii.

CLEVELAND — Northeast Ohio’s weather this week is a textbook example of how the upper-level jet stream can flip the switch between quick-moving rain showers and prolonged bouts of wintry weather. This ...

Picture this: you're checking tomorrow's weather for the tenth time this week, and each time the forecast has shifted. What started as sunny skies morphed into scattered showers, then back to partly ...

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 ...

First, instead of moving storms quickly eastward, the sluggish jet stream stalled storm systems in place, causing prolonged downpours and flash flooding. When you purchase through links on our site, ...

You might be reaching for summer clothes in parts of the West, but keep the jackets nearby in the East. Here's the latest ...

(The Conversation) – The summer of 2025 brought unprecedented flash flooding across the U.S., with the central and eastern regions hit particularly hard. These storms claimed hundreds of lives across ...

The jet stream also played a role in the 2025 hurricane season. Given its west-to-east wind direction, the southward dip of the jet stream—along with a weak high pressure system over the ...