A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map ...

A recent study in the journal Nature shows that when the summer jet stream over Europe veers north or south of its usual path, it brings weather extremes that can exacerbate epidemics, ruin crop ...

Climate scientists have long watched the jet stream with fascination and growing concern. These rivers of air racing across our planet at altitudes of roughly 5-9 miles dictate much of our day-to-day ...

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. Here's a meteorology 101 rundown about what ...

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 ...