As a series of Pacific storms continues in the northwestern United States and in southwestern Canada, the biggest storm of the bunch will include an atmospheric river in portions of Washington and ...

Ahead of the storm’s arrival, officials in Southern California distributed sandbags, prepositioned rescue swimmers and told ...

An Arctic air mass kept its grip on much of the central and eastern U.S. on Friday, plunging temperatures to record lows as snow blanketed central Colorado and the Pacific Northwest braced for an ...

Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

Warmer temperatures and renewed precipitation will raise the risk for avalanches across B.C.’s South Coast in the days ahead ...

The study, published in the journal Climate Dynamics, found that atmospheric rivers explain the majority of atypical El Nino ...

Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land, they can cause heavy rains and snow. Here’s a look at the phenomenon: ...

An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Following a brief lull in the stormy pattern, California residents are on track to be doused by another atmospheric river, AccuWeather meteorologists warn. Through early this week, the drier stretch ...

A rain-filled storm called an atmospheric river is sweeping into California this week. The weather phenomenon could bring heavy rain to many parts of the state—including the areas around Los ...

What's an Atmospheric River ... They occur globally but are especially significant on the West Coast of the United States, where they create 30% to 50% of annual precipitation and are vital ...