POTENTIAL FOR A COLD PACIFIC STORM THIS WEEKEND

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POTENTIAL FOR A COLD PACIFIC STORM THIS WEEKEND ACROSS THE

NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
600 PM PST FRI DEC 15 2006

CAZ034>041-044>047-051>054-059-087-088-161400-
ANTELOPE VALLEY-CATALINA ISLAND-CUYAMA VALLEY-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
LOS ANGELES COUNTY VALLEYS-SAN LUIS OBISPO COUNTY CENTRAL COAST-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-
SAN LUIS OBISPO COUNTY MOUNTAINS-SANTA BARBARA COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY MOUNTAINS-SANTA BARBARA COUNTY SOUTH COAST-
SANTA CLARITA VALLEY-SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SANTA YNEZ VALLEY-VENTURA COUNTY COAST-
VENTURA COUNTY COASTAL VALLEYS-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY MOUNTAINS-
600 PM PST FRI DEC 15 2006

...POTENTIAL FOR A COLD PACIFIC STORM THIS WEEKEND ACROSS THE
SOUTHLAND...

A COLD STORM SYSTEM IS EXPECTED MOVE THROUGH THE EASTERN PACIFIC
THROUGH TONIGHT...THEN PUSH INTO THE WESTERN UNITED STATES OVER
THE WEEKEND. THE EXACT TRACK AND INTENSITY OF THE SYSTEM WILL
ULTIMATELY DETERMINE ITS IMPACT ON SOUTHWESTERN CALIFORNIA. AT
THIS TIME IT APPEARS THERE IS THE POTENTIAL FOR MODERATE AMOUNTS
OF RAIN AND MOUNTAIN SNOWS ACROSS PORTIONS OF OUR FORECAST AREA.

THE BULK OF THE PRECIPITATION ASSOCIATED WITH THE WEATHER SYSTEM
SHOULD AFFECT SOUTHWESTERN CALIFORNIA SATURDAY AFTERNOON AND EVENING
AS A COLD FRONT PUSHES THROUGH THE REGION. THE THREAT OF
THUNDERSTORMS WITH SMALL HAIL ALSO EXISTS WITH THIS SYSTEM LATE
SATURDAY AND SATURDAY NIGHT. A MOIST AND UNSTABLE AIRMASS BEHIND THE
FRONT SHOULD LINGER OVER THE AREA SUNDAY WITH THE SLIGHT CHANCE OF
SHOWERS EXPECTED THROUGH THE DAY. PRELIMINARY RAINFALL ESTIMATES WITH
THIS SYSTEM FROM SATURDAY THROUGH SUNDAY IS FOR ONE QUARTER TO ONE
HALF INCH ACROSS MUCH OF THE AREA...WITH LOCALLY HIGHER AMOUNTS
ACROSS HIGHER TERRAIN AND WHERE ANY THUNDERSTORMS OCCUR.

SNOW LEVELS ASSOCIATED WITH THE MAIN FRONTAL BAND WILL FALL QUICKLY TO

000 TO 4000 FEET...WITH SNOW LEVELS POSSIBLY LOWERING TO AS LOW AS
2500 FEET BEHIND THE FRONT LATE SATURDAY NIGHT INTO SUNDAY MORNING.
THESE LOW SNOW LEVELS WOULD CERTAINLY AFFECT MANY OF THE MOUNTAIN
PASSES AND POSSIBLY PORTIONS OF THE ANTELOPE VALLEY. SEVERAL INCHES
OF SNOW WILL BE POSSIBLE DURING THE WEEKEND ESPECIALLY ABOVE 3000
FEET. THOSE TRAVELING INTO THE MOUNTAINS THIS WEEKEND ARE ENCOURAGED
TO MONITOR THE LATEST FORECASTS AND ANY POTENTIAL WINTER WEATHER
ADVISORY PRODUCTS.

THIS MAY BE THE FIRST SIGNIFICANT WINTER-LIKE STORM OF THIS SEASON
OVER SOUTHWESTERN CALIFORNIA. PEOPLE PLANNING OUTDOOR ACTIVITIES...
ESPECIALLY IN THE MOUNTAINS...SHOULD BE PREPARED FOR THE INCLEMENT
WEATHER.

$$

SIRARD



EDIS-12-15-06 1802 PST