Add Yahoo as a preferred source to see more of our stories on Google. Scattered showers are expected Wednesday in Napa County, amid an unusual global weather pattern. (Brant Ward/The Chronicle) The ...

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 ...

The weather pattern is changing as the Jet Stream evolves into a west northwest flow. This means rounds of showers and t’storms thru the Holiday Weekend can be expected, Its not a washout for outside ...

Jet streams are often referred to as the "motor" of global weather: High-altitude wind currents steer areas of high and low pressure, playing a crucial role in shaping our weather. However, how these ...

While it's been cool and wet in the Miami Valley, there's a much different set up out west. A stubborn jet stream pattern has made its mark on the entire country recently. While we find ourselves in a ...

If you’ve ever heard a meteorologist mention the jet stream and thought, “Okay… but what does that actually mean?” You’re not alone. It’s one of the most important drivers of weather across the United ...

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 ...

The world's weather is in a strange pattern right now - and it's affecting California. A massive area of high pressure parked over Western Europe, responsible for breaking century-old records and ...