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 >

These photos came from Lincoln 21-H, Lynn Geissler, on the morning of September 17, 2002. The funnel appeared about 10 miles west of Davenport under a cool pool aloft leading to instability. Doppler weather radar showed very broad rotation in the area. Visible satellite showed one convective-looking element in the area. These photos were snapped around 1100-1115 am, and the funnel apparently dissipated between 1120 and 1125 am without touching down.

 

Funnel cloud near DavenportLong funnel cloud