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 >

On Wednesday, July 31, 2019 technicians upgraded the software at
the Doppler Radar site located near Minot. This upgrade adds a 
lower surveillance scan at 0.3 degrees. Previously the lowest scan
had been 0.5 degrees.

The change will improve weather radar coverage across the entire 
area served by this radar. This was already evidenced by National 
Weather Service Forecasters during the severe weather that 
occurred in the northern part of the state on Thursday.