Frost Advisory 7, NWS Los Angeles, CA

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
330 AM PST FRI DEC 26 2008

.SHORT TERM...
THE WEATHER IS SETTLING DOWN NICELY IN THE WAKE OF YDYS STORMS. THE
COLD AIR ADVECTION HAS ENDED WHICH KILLED THE WINDS. THE ONLY
WEATHER GOING ON AT THE MOMENT IS OVER THE NORTH SLOPES OF THE MTNS
WHERE THE NORTH WINDS HAVE SCOOPED UP QUITE A BIT OF MOISTURE AND
BANKED UP CLOUDS. SCATTERED SNOW SHOWERS WILL DROP ANOTHER 2 TO 4
INCHES OF NEW SNOW. NORTH WINDS WILL BLOW 25 TO 35 MPH AS WELL.
THESE CONDITIONS ARE COVERED IN THE WINTER STORM WARNING...BUT BY
NOON THE CONDITIONS SHOULD IMPROVE AND THE WARNING WILL MOST LIKELY
END.

A FEW SHOWERS ARE STILL OCCURRING OFF OF POINT CONCEPTION AND THE
LOMPOC VANDENBERG AREA COULD RECEIVE A BRIEF SHOWER EARLY THIS
MORNING.

STILL COLD EVERYWHERE TODAY DUE TO 537 DM THKNS OVERHEAD WITH MAX
TEMPS DOWN 8 TO 12 DEGREES FROM NORMALS...DESPITE THE BETTER
SUNSHINE.

COLDEST NIGHT OF THE MONTH ON TAP TONIGHT WITH A COLD CLEAR DRY
ATMOSPHERE. FROST ADVISORIES WILL BE ISSUED FOR THE CENTRAL
COAST...THE SOUTH SBA CST...THE INTERIOR PORTION OF VTA CST...AND
THE VENTURA VLYS. THE L.A. VLYS SHOULD REMAIN JUST WARM ENOUGH TO
STAVE OFF WIDESPREAD FROST BUT PATCHY FROST WILL BE LIKELY.

STANDARD CALIFORNIA WEATHER BEGINS TO RETURN SATURDAY AS A WEAK
RIDGE BUILDS INTO THE AREA. MAX TEMPS EVERYWHERE WILL JUMP UP 5 TO 6
DEGREE. THE RIDGE IS A LITTLE DIRTY WITH MID TO HIGH LEVEL MOISTURE
AND CENTRAL COAST MAY SEE PARTLY CLOUDY SKIES...BUT STILL NO BIG
DEAL.

THE RIDGE FLATTENS OUT SOME SUNDAY. BUT STILL 579DM HGTS WILL BE
OVERHEAD. LOOK FOR RATHER BENIGN WEATHER BUT TEMPS WILL STRUGGLE
TOWARDS NORMAL RISING ANOTHER 4 TO 5 DEGREES.

.LONG TERM...
GFS AND EC ARE IN GOOD AGREEMENT THROUGH NEXT THURSDAY. THE EXTENDED
FORECAST LOOKS FAIRLY DULL. BOTH MAX AND MIN TEMPS WILL NOT VARY
MUCH FROM DAY TO DAY AND WILL BE WITHIN A FEW DEGREES OF THE
SEASONAL NORMS. IT WILL BE DRY AS THE STORM TRACK WILL BE FROM THE
EUREKA AREA AND NORTHWARD. A FEW MID TO HIGH LEVEL CLOUDS MAY MAR
OTHERWISE CLEAR SKIES. THE ONLY FLY IN THE OINTMENT IS A WEAK
WED/THU TROF THAT THE 06Z GFS CONJURES UP BUT IS NOT PRESENT IN THE
EC SOLN.

&&

.AVIATION...

26/1200Z

GOOD FLYING TODAY...THE ONLY EXCEPTION BEING IFR CONDS THROUGH THE
NORTHERN PORTION OF THE TEJON PASS THIS MORNING. WINDS HAVE SUBSIDED
AND THE TURBULENCE AND LLWS RISKS ARE MUCH DIMINISHED. Z LVL NEAR
4000 FEET.

KLAX...GOOD CONFIDENCE IN TAF.

KBUR...GOOD CONFIDENCE IN TAF.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING (SEE LAXWSWLOX).
FROST ADVISORY (SEE LAXNPWLOX).
GALE WARNING (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
HIGH SURF ADVISORY (SEE LAXCFWLOX).
HIGH RIP CURRENT RISK (SEE LAXSRFLOX).

&&

PUBLIC...RORKE
AVIATION...BRUNO

WWW.WEATHER.GOV/LOSANGELES

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1209 PM PST THU DEC 25 2008

CAZ034>041-044>046-051>054-059-087-088-547-548-261400-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
1209 PM PST THU DEC 25 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

SHOWERS WILL CONTINUE TO AFFECT SOUTHWESTERN CALIFORNIA TODAY. SNOW
WILL CONTINUE TO ACCUMULATE IN THE MOUNTAINS OF VENTURA AND LOS
ANGELES COUNTIES. SNOW LEVELS WILL LOWER SIGNIFICANTLY...AND SNOW
MAY ACCUMULATE ON MAJOR ROUTES SUCH AS INTERSTATE 5 NEAR THE
GRAPEVINE. STRONG AND GUSTY NORTHWEST WINDS WILL AFFECT MUCH OF THE
REGION INTO EARLY FRIDAY.

* WINTER STORM WARNING.......SEE WWUS46 KLOX - WSWLOX FOR DETAILS *

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS *

* MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY

CLEARING AND DRIER CONDITIONS CAN BE EXPECTED DURING THE ENTIRE
PERIOD.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

MORRIS