Pineapple Express has drenched Northern California in the last few days—but what exactly is it? How common is it? Also, go 'Beyond the nugget' to learn about the polar vortex and the Santa Ana winds.

The term “atmospheric river” was coined in 1994 and has since quickly gained popularity. But what does it really mean?

Scientists study how climate change will impact ice cover and thickness on the upper Mississippi River.

To me, that’s the biggest threat — the wind,” a National Weather Service meteorologist told the Sentinel. “This is when ...

A pineapple express is a type of strong atmospheric river that carries moisture toward the western U.S., bringing the risk of flooding and heavy snow.

Conditions across northern California and southern Oregon are still being influenced by a stationary front between a low ...

At atmospheric river continues to slam portions of California Tuesday, with multiple inches of rain expected until Wednesday.

Cold weather has a firm grip on our weather this morning in KELOLAND as temperatures hover near zero to start the day. Clouds ...

Back-to-back atmospheric river storms are set to hit Los Angeles County this week — giving the region much-needed moisture ...