...Today's alert and forecast...
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
525 AM PST FRI DEC 12 2008
...COLD AND RAINY WEATHER PATTERN FOR SOUTHWEST CALIFORNIA...
A DEEP LOW PRESSURE TROUGH DEVELOPING OVER THE WEST WILL SEND A
SERIES OF WEATHER SYSTEMS INTO SOUTHERN CALIFORNIA NEXT
WEEK...BRINGING PERIODS OF RAIN AND MOUNTAIN SNOW AT TIMES.
THE FIRST CHANCE OF PRECIPITATION WILL BE THIS WEEKEND AS THE MARINE
LAYER RAPIDLY DEEPENS. A BETTER CHANCE OF MORE SIGNIFICANT
PRECIPITATION WILL BE MONDAY AND TUESDAY WHEN A STRONGER STORM MOVES
INLAND. COOLER WEATHER WITH PERIODS OF RAIN WILL CONTINUE THROUGH
MUCH OF NEXT NEXT WEEK.
PRELIMINARY RAINFALL ESTIMATES THIS WEEKEND THROUGH THE MIDDLE OF
NEXT WEEK RANGE FROM ABOUT ONE TO TWO INCHES WEST OF THE
MOUNTAINS...TWO TO FOUR INCHES ON THE WEST FACING MOUNTAIN SLOPES
AND UP TO ABOUT AN INCH IN THE DESERTS.
SNOW LEVELS WILL START OUT ABOVE 7000 FEET AND THEN LOWER TO ABOUT
4000 TO 5000 FEET MONDAY THROUGH THURSDAY...ALTHOUGH IT COULD GET
LOCALLY LOWER. THERE COULD BE ONE TO TWO FEET OF SNOW AT THE HIGHER
ELEVATIONS OF THE SAN BERNARDINO AND RIVERSIDE COUNTY MOUNTAINS WITH
ABOUT HALF A FOOT IN THE SAN DIEGO MOUNTAINS AND ON THE PEAKS OF THE
SANTA ANA MOUNTAINS. SNOW...BLOWING SNOW AND DENSE FOG WILL MAKE
TRAVEL HAZARDOUS THROUGH THE MOUNTAINS DURING THIS PERIOD.
PERIODS OF HEAVY RAIN WILL INCREASE THE FLASH FLOOD POTENTIAL.
RESIDENTS LIVING IN AND BELOW RECENTLY BURNED AREAS SHOULD BE
PREPARED FOR POSSIBLE FLASH FLOODING AND DEBRIS FLOW. PEOPLE
PLANNING OUTDOOR ACTIVITIES SHOULD MONITOR THE LATEST WEATHER
FORECASTS.