National Weather Service United States Department of Commerce
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Last Map Update: Tue, Feb. 19, 2019 at 6:19:11 pm PST

National Weather Service San Francisco Bay Area, CANational Weather Service San Joaquin Valley, CANational Weather Service Las Vegas, NV
National Weather Service Honolulu, HIZoom
Out

National Weather Service NWS Phoenix
National Weather Service Honolulu, HINational Weather Service San Diego, CANational Weather Service San Diego, CA

A cold storm system is expected to move across Southern California Wednesday through Thursday night, potentially bringing some rain, mountain snow and a chance of thunderstorms. Coast and valleys could expect up to a quarter of an inch, whereas in the mountains a quarter to half an inch are possible. If isolated thunderstorms develop, small hail and slightly higher amounts could be possible. In addition, one to three inches of snow above 2500 ft. but up to 6 inches will be possible over the eastern San Gabriel mountains. Snow levels could drop as low as 1500 ft. bringing some dusting to minor accumulations across those lower elevations. Some of the potential impacts are hazardous winter driving conditions on mountain roads and highways, including the I5 near Grapevine.
A Frost Advisory in effect from 10 pm tonight through 8 am Wednesday for the Central Coast, Ventura County valleys, Santa Clarita and San Fernando valleys. Overnight temperatures over the mountains/foothills are expected to get down to the low 20s and down to the low 30s across coasts and valleys. Animals as well as outdoor plants should be kept indoors or covered as cold temperatures could be dangerous for them.

 

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