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 omega block is a weather term that describes the shape of the jet stream in the northern hemisphere: a curved upside-down "U" with two outward facing lines, which appears to resemble the 24th ...

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 ...

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 ...

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 ...

So far this summer, the hottest day of 2010 in Fargo-Moorhead was 95 degrees back on May 29. But there may be an upcoming opportunity to better that reading. The jet stream pattern has, for several ...

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 ...

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 ...

The weather pattern may turn active again around Easter weekend across Indiana. We’re closely watching the jet stream as it stirs up the potential for thunderstorms—especially heading into Good Friday ...

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 ...