A river of fast air circles the planet near the top of the troposphere, bending north and south as it goes. Its changing route helps determine whether a region receives a procession of storms, a surge ...

Something has been off about the sky lately, and meteorologists are finally putting numbers to the feeling. Across the past several months, forecast models have picked up on a significant ...

This winter is set to feature numerous strong storms affecting the West Coast and southern half of the country, according to the official winter outlook released Thursday by the National Oceanic and ...

Learn how the polar vortex and sudden stratospheric warming can influence UK cold spells, snow chances, and forecasts—and what to check before making plans.

KALAMAZOO, Mich. — 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 ...

A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the massive current of Arctic air that regulates weather for much of the Northern ...

Dartmouth researchers used machine learning and long-term climate records to construct a timeline of jet-stream variability since 1901. Nearly all prior studies of the jet stream focus on the period ...