WASHINGTON (Reuters) - In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) per hour, but they are not the strongest in our ...

We talk about the jet stream all the time when we’re telling you about the upcoming forecast. It’s one of the most important things in our sky that affects whether you see snow or sun at your home.

LANSING, Mich. (WLNS) — You’ve probably heard meteorologists talking about the jet stream in the fall and winter months as it can be used as a tool to forecast temperature changes and even the type of ...

Monday will offer the kind of weather that makes the Bay Area feel amazing, with light offshore breezes, blue skies and warm temperatures. But that serenity masks a brewing change over the Pacific.

The frigid stream of air that plunged down into the Central U.S. this week is breaking cold records from South Dakota to Texas, with temperatures in the single digits setting records in many locations ...