I forgot to mention that Gov. Arnold Schwarzenegger has proclaimed a state of emergency in Kern, Orange, Riverside, San Bernardino, San Luis Obispo and Tulare counties due to extreme weather and storm conditions.
While the National Weather Service has a winter storm warning (see below) posted for Southern California mountains, including the San Jacintos, I believe the San Bernardino Mountains to the north are the more likely target.
It's still raining here. Quite a bit in the past 30 hours. Here's the rain data:
Since midnight 2.05 inches
Tuesday 1.93 inches
Since it began Thurs 9.06 inches
December's average rainfall 3.75 inches (since 1948)
December's avg rainfall 5.17 inches (since 2006)
Two wettest Decembers
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA
416 AM PST WED DEC 22 2010
...PERIODS OF HEAVY SNOWFALL POSSIBLE IN THE MOUNTAINS THROUGH
.A FLOW OF MOISTURE FROM THE SOUTHWEST WILL BRING PERIODS OF
LIGHT SNOWFALL TONIGHT. FOR LATE TONIGHT AND WEDNESDAY...A
STRONGER...COLDER TROUGH OF LOW PRESSURE FROM THE NORTHWEST WILL
BRING NUMEROUS SNOW SHOWERS AND ISOLATED THUNDERSTORMS WITH HEAVY
SNOWFALL POSSIBLE ABOVE 6500 FEET.
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BALDWIN LAKE...
BIG BEAR CITY...BIG BEAR LAKE...FAWNSKIN
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING ABOVE 6500 FEET...
A WINTER STORM WARNING ABOVE 6500 FEET REMAINS IN EFFECT UNTIL
6 PM PST THIS EVENING.
* ELEVATION: ABOVE 6500 FEET.
* SNOW LEVELS: 6000 TO 6500 FEET...LOWERING TO 5000 TO 5500 FEET
* SNOW ACCUMULATIONS: NEW SNOW ACCUMULATIONS OF 10 TO 18 INCHES
ABOVE 7000 FEET AND 6 TO 10 INCHES FROM 6000 TO 7000 FEET TODAY
WITH A FEW INCHES OF SNOWFALL POSSIBLE BELOW 6000 FEET.
* TIMING: WIDESPREAD SNOWFALL THROUGH AROUND DAYBREAK ABOVE 6000
TO 6500 FEET...THEN SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
THROUGH THIS AFTERNOON.