Biggest storm of year batters Southern California: What you need to know

Cars fly through standing water on Burbank Boulevard at Louise Avenue in Encino.
Cars fly through standing water on Burbank Boulevard in Encino as the “most significant storm of the season” arrived in Southern California on Tuesday.
(Al Seib / Los Angeles Times)

A long-awaited rain storm has moved into Southern California, bringing flash-flood warnings and concerns about mudslides. Officials are calling it the biggest storm of the year.

Here is what to expect:

The forecast

  • One to 3 inches of rain are forecast for the valley and coastal areas of the county while the mountains may see 3 to 6 inches of precipitation. Higher elevations could see 3-4 inches of rain.
  • Heavy snow expected above 7,000 feet; Grapevine could see light snow.
  • Intense winds topping 45 mph in some area.


  • Heavy rain this morning and continuing into the evening.
  • Cloudy skies on Wednesday.
  • Another smaller storm system coming Thursday.


  • Flooding and debris flows are possible in some hillside areas due to periods of intense rain.
  • Flood watches have been issued for areas hit by recent fires: Alisal, Palisades, Bobcat, Ranch 2, Dam and Lake.
  • Flood advisories in place for many parts of Southern California.
  • A gale warning has been issued for local waters, due to high winds and choppy seas.