A weather pattern named for the Greek letter omega is guiding US weather, forecasters said. The pattern is expected to continue into June.

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 ...

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 ...

Michigan is forecast to see a string of warm and dry days to start June, thanks to a weather pattern known as the omega block ...

Lately, the jet stream isn’t playing by the rules. Scientists say that big river of air high above Earth that dictates much of the weather for the Northern Hemisphere has been unusually erratic the ...

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 temperatures in the 40s is ...

This week's question comes from Robinette, a Morning Brief reader in Fredericksburg, Virginia, who noticed a pattern in the local weather, "A few years back or maybe even longer, I started noticing ...

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 ...

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 ...

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 ...

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 ...