National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

 
Preliminary Alaska aviation weather unit Forecast graphics
The preliminary forecast graphics on this page are for air traffic planning purposes only. Preliminary forecast graphics are generated daily at 5:30am, 10:30am, and 6:30pm.  Graphics on this page may not match the final versions published to the Alaska Aviation Weather Unit web page.

 

Preliminary Convection Graphics (With Labels)

Preliminary Convection Graphics (No Labels)

Preliminary Icing Graphics (With Labels)

Preliminary Icing Graphics (No Labels)

Preliminary Low Level Turbulence Graphics (With Labels)

Preliminary Low Level Turbulence Graphics (No Labels)

Preliminary High Level Turbulence Graphics (With Labels)

Preliminary High Level Turbulence Graphics (No Labels)