These weather systems aren't rare but bring huge amounts of rainfall which can lead to dangerous landslides and flooding.

Temperatures in Tacoma are expected to range between the low 30s to high 40s beginning on Thursday with possible snow showers ...

A jet carrying 60 passengers and four crew members collided Wednesday with an Army helicopter while landing at Ronald Reagan ...

Forecasts indicate that an atmospheric river will bring heavy rain and snowfall to much of the Pacific Northwest starting ...

A cluster of 66-million-year-old fish vomit is a natural, national treasure in Denmark. The rare find shines a light on the ...

Explore the background of Elsayed Talaat, new president and CEO of the Universities Space Research Association.

You might be hearing about the gulf off the coast of the U.S. and Mexico. Here's what to know about the body of water the size of Alaska.

Sky gazers in several U.S. states could get a colorful glimpse of the northern lights as we enter the weekend, thanks to a recent geomagnetic storm.

Less than an inch of rain fell in most areas, but it was enough to loosen Los Angeles hillsides burned bare by the recent ...

The National Oceanic and Atmospheric Administration designated the marine portions of Hawaii’s Papahānaumokuākea Marine National Monument, a 582,570 square-mile area in the Pacific Ocean ...

Officials cautioned that ash in recent burn zones was a toxic mix of incinerated cars, electronics, batteries, building ...

A proposal to lower speed limits on waterways — boat strikes kill a large number of the whales — was dropped in face of next administration.