The National Weather Service has issued a storm watch for the Riverside County mountains from Saturday afternoon through Monday afternoon. The full text of the storm watch is as follows:

Winter Storm Watch
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
333 AM PST THU FEB 26 2015

...A COLD WINTRY STORM MAY BRING HEAVY SNOW ABOVE 5000 FEET
SATURDAY AFTERNOON THROUGH MONDAY AFTERNOON...

.A COLD LOW PRESSURE SYSTEM DROPPING SOUTH THROUGH CALIFORNIA WILL BRING RAIN AND SNOW FROM SATURDAY AFTERNOON THROUGH MONDAY
AFTERNOON. THERE WILL BE THE POTENTIAL FOR HEAVY SNOWFALL IN THE MOUNTAINS...WHICH COULD MAKE TRAVEL DIFFICULT IF NOT IMPOSSIBLE
THROUGH THE HIGHER MOUNTAIN PASSES AT TIMES.

CAZ055-056-058-262200-
/O.NEW.KSGX.WS.A.0001.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
333 AM PST THU FEB 26 2015

...WINTER STORM WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
MONDAY AFTERNOON.

* SNOW LEVELS...INITIALLY AROUND 5000 FEET...DROPPING TO BETWEEN
4000 TO 4500 FEET SUNDAY THROUGH MONDAY.

* TIMING...HEAVY SNOWFALL MORE LIKELY SATURDAY NIGHT INTO SUNDAY
AND SUNDAY NIGHT.

* SNOW ACCUMULATIONS...MODERATE TO HEAVY ACCUMULATIONS OF SNOW
POSSIBLE...OVER 6 INCHES POSSIBLE ABOVE 5000 FEET AND OVER ONE
FOOT POSSIBLE ABOVE 6000 FEET.

* WINDS...STRONG GUSTS OF 50 TO 60 MPH AT TIMES...MAY CAUSE
BLOWING AND DRIFTING SNOW AND REDUCED VISIBILITY.

* IMPACTS...TREACHEROUS DRIVING CONDITIONS...CHAIN RESTRICTIONS
AND ROAD CLOSURES POSSIBLE AT TIMES.

* OUTLOOK...WINTRY WEATHER MAY EXTEND INTO TUESDAY. STAY TUNED TO
LATER FORECASTS TO FINE TUNE THE EXPECTED CONDITIONS AND AMOUNTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.