The jet stream, or any wind, is the result of differences in surface temperature. In simple terms, warm air rises, creating low pressure, and cold air sinks, creating high pressure. Wind is the ...

Last week's marathon winter storm was the result of a big dip in the jet stream. Here's how the jet stream works, and how we use it to forecast storms.

A close relationship exists between the location of the polar jet stream and conditions near the surface, particularly temperatures. When the polar jet stream is situated south of your location, the ...

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 ...

(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 ...