Across the Northern Hemisphere, familiar seasons are starting to feel unfamiliar. Heat waves linger, cold snaps arrive out of sync, and storms stall over the same unlucky regions. At the heart of this ...

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 ...

A sharp, late-season flip in the jet stream is setting up a winter pattern that looks very different from the one that opened the year, and forecasters say it is not business as usual. A leading ...

The daily weather we experience is largely shaped by atmospheric conditions nearly 30,000 feet above us, where a key factor is the weather phenomenon known as the jet stream. Think of a jet stream as ...

At the end of October 2024, a grey gloom descended over the British Isles. Nothing unusual there. But this murky shroud was particularly persistent, even for the UK. Some regions barely saw the sun ...

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 ...