When you flip the thermostat down on a sweltering afternoon, you might not think about what's happening five or six miles ...

Add Yahoo as a preferred source to see more of our stories on Google. A split jet stream over the Pacific Ocean will help amplify a ridge of high pressure near the West coast, keeping California warm ...

Add Yahoo as a preferred source to see more of our stories on Google. Additionally, this shift in the jet stream will shield the East from the worst of the polar vortex, which will retreat farther ...

While much of the eastern U.s. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of unseasonable warmth, which has left many mountain ranges in a snow drought. A major ...

The sky may seem like a huge open playground for airplanes to fly without speed limits in any direction they wish. In reality, planes adhere to certain rules and follow fixed flight paths, much like ...

This week’s weather story is a tale of fine margins, shifting patterns, and a developing low that continues to test the ...

One Saturday, the ground is white with frost. The next Saturday, we're breaking a sweat. Welcome to the wonderful world of an amplified jet stream pattern, which simply means that the fast-moving ...