The Invisible Ropes of the Sky Jet streams are essentially fast-flowing air currents high above us, acting much like highways for the atmosphere. These powerful ribbons of wind can steer weather ...

Downtown San Francisco was drier, but it still had a big day. The area recorded 2.53 inches on Tuesday, its highest daily ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, with an increasing chance ...

A University of Hawaii at Mānoa study on the freezing of water droplets suspended in air sheds light on a key process in ...

Two snow and ice storms threatened to roll across the Midwest and East this week. And a third storm could be lurking for next weekend.

The Army was one of 28 government agencies authorized to fly helicopters near Ronald Reagan National Airport before its Black ...

We hung out with Clay Millican’s Parts Plus Top Fuel dragster to learn what it takes to go from 0 to 330 mph in under four seconds.

Dry conditions are expected for the first half of the week along with below normal temperatures. The week will start off with mostly sunny skies on Monday but become mostly cloudy by nightfall.

High temperatures will be slightly below average on Monday in the upper 30s. Light snow will move into the Susquehanna Valley on Tuesday afternoon and evening.

The pressure decreases as altitude increases ... about 1000 metres above the earth's surface and is the level most representative of the air flow in the lower atmosphere immediately above the layer ...