Wind Advisory 140, NWS Los Angeles, CA

000 
WWUS76 KLOX 072231
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
231 PM PST FRI DEC 7 2007

...WINDS HAVE DIMINISHED OVER THE MOUNTAINS OF SOUTHWESTERN
CALIFORNIA...

...GUSTY WINDS HAVE DEVELOPED OVER THE COASTAL AREAS SOUTH OF
POINT CONCEPTION...

.A COLD FRONT HAS MOVED SOUTH OF THE AREA AND THE WINDS ASSOCIATED
WITH THE FRONT ARE WEAKENING THIS AFTERNOON...HOWEVER...STRONG
ONSHORE PRESSURE GRADIENTS BEHIND THE FRONT ARE CREATING STRONG
WESTERLY WINDS IN THE COASTAL AREAS THIS AFTERNOON. WINDS WILL
DIMINISH AFTER DUSK THIS EVENING.

CAZ052>054-059-072345-
/O.CAN.KLOX.WI.Y.0140.000000T0000Z-071208T0200Z/
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-
231 PM PST FRI DEC 7 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CANCELLED A
WIND ADVISORY FOR THE LOS ANGELES...VENTURA...AND SANTA BARBARA
COUNTY MOUNTAINS. 

WINDS HAVE WEAKENED ACROSS THE AREA AS THE FRONTAL BOUNDARY HAS
PUSHED SOUTH OF THE AREA. LOCAL WINDS GUSTS TO 50 MPH MAY STILL
OCCUR THIS AFTERNOON...BUT THESE WINDS WILL BE BRIEF AND
LOCALIZED.

$$

CAZ039>041-080430-
/O.NEW.KLOX.WI.Y.0141.071207T2231Z-071208T0500Z/
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
231 PM PST FRI DEC 7 2007

...WIND ADVISORY IN EFFECT UNTIL 9 PM PST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A WIND
ADVISORY FOR THE LOS ANGELES...VENTURA...AND SOUTHERN SANTA
BARBARA COUNTY COASTS. THIS ADVISORY IS IN EFFECT UNTIL 9 PM PST
THIS EVENING.

AREAS OF WEST TO NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 45
MPH HAVE DEVELOPED OVER THE COASTAL AREAS THIS AFTERNOON. WINDS
WILL CONTINUE THROUGH THIS EVENING...AND THEN DIMINISHING.

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH OR GREATER ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

$$

HALL

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
935 AM PST FRI DEC 7 2007

.SHORT TERM...FRONT QUICKLY MOVED THROUGH THE AREA OVERNIGHT AND NOW
WERE IN A POST FRONTAL SHOWER REGIME. RAINFALL FORECAST WORKED OUT
PRETTY WELL AS LOWER ELEVATIONS AVERAGED BETWEEN A THIRD AND A HALF
INCH WHILE A FEW FOOTHILL AND MOUNTAIN LOCATIONS REPORTED OVER 2
INCHES. ALTHOUGH THE CHANCES FOR BURN AREA PROBLEMS IS NOW PRETTY
LOW, THERE IS JUST ENOUGH COLD AIR AND INSTABILITY THAT A BRIEF
HEAVY SHOWER COULD DEVELOP SO WILL LEAVE THE WATCH UP.

SORT OF A MESSY FORECAST THROUGH THE WEEKEND AS A SERIES OF
SHORTWAVES AND UPPER LOWS WILL MOVE NEAR OR OVER THE AREA. NOT MUCH
MOISTURE ASSOCIATED WITH THEM BUT ENOUGH THAT A SHOWER COULD DEVELOP
JUST ABOUT ANYWHERE AT ANYTIME. WITH MOSTLY A NORTHERLY FLOW IN
PLACE NOW THE BEST CHANCES WILL BE ACROSS THE NORTH FACING MOUNTAIN
SLOPES. BY SATURDAY NIGHT THE COLD CORE WILL BE OVERHEAD WITH
THICKNESSES DOWN TO 531. THIS COMBINED WITH GOOD NORTHEAST FLOW AND
SOME MOISTURE COULD GENERATE LOCALLY HEAVY SNOW ACROSS THE EASTERN
SAN GABRIEL MOUNTAINS AND LIGHT SNOW DOWN TO THE ANTELOPE VALLEY
FLOOR.

BY SUNDAY AFTERNOON IT LOOKS LIKE WERE FINALLY IN THE CLEAR, BUT
TEMPERATURES WILL STILL BE SEVERAL DEGREES BELOW NORMAL.

...FROM PREVIOUS DISCUSSION...

.LONG TERM...
EC AND GFS FORECAST A SERIES OF INSIDE SLIDERS THROUGH THE EXTENDED
PERIOD. THERE IS CONSIDERABLE DISAGREEMENT ON THE TIMING AND
STRENGTH OF THE SYSTEMS. CURRENT FORECAST OF PARTLY CLOUDY SKIES
AND BREEZY LOOKS GOOD. A SLOW WARMING TREND WILL OCCUR BUT TEMPS
WILL STILL BE COOL.

&&

.AVIATION...07/1400Z

EXPECT GUSTY W TO NW WINDS THROUGH TODAY AS COLD FRONT PASSES
THROUGH FORECAST AREA TODAY. RAIN SHOWERS WILL CONTINUE THROUGH THIS
AFTERNOON THEN TAPER OFF. EXPECT MVFR CIGS...ESPECIALLY S OF POINT
CONCEPTION THROUGH EARLY AFTERNOON HOURS...THEN VFR CONDS SHOULD
PREVAIL WITH CIGS BETWEEN 040-060. LOCAL MOUNTAIN WAVE CONDS COULD
DEVELOP ACROSS THE TEHACHAPI MTNS AND CAUSE UDDF AND LLWS CONDS
ACROSS PORTIONS OF THE ANTELOPE VALLEY. W TO NW WINDS WILL CONTINUE
TO BE STRONG THROUGH THIS EVENING.

.KLAX...SOUTHERLY WINDS 15 TO 25 KT WITH LOCALLY HIGHER GUSTS WILL
BEGIN TO SHIFT SW TO W BY 17Z WITH PERIODS OF RAIN THIS MORNING. W
WINDS WILL CONTINUE 15 TO 20 KT IN THE AFTERNOON WITH GUSTS TO 30 KT
POSSIBLE LATER THIS MORNING AND AFTERNOON HOURS. MVFR CIGS WILL GIVE
WAY TO VFR CIGS BY 21Z. EXPECT SCT040-060 THIS AFTERNOON THROUGH
EVENING HOURS.

.KBUR...SHOWERS WITH SE WINDS BETWEEN 10 AND 15 KT WITH LOCALLY
HIGHER GUSTS TO 25 KT WILL CONTINUE THROUGH THIS MORNING. IFR/MVFR
CIGS WILL PREVAIL THROUGH 19Z WITH SHOWERS...THEN SHOWERS  WILL
DIMINISH THIS AFTERNOON WITH VFR CIGS BETWEEN 040-060 THROUGH THIS
EVENING.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
HIGH WIND WARNING (SEE LAXNPWLOX).
FLASH FLOOD WATCH FOR THE BURN AREAS (SEE LAXFFALOX).
WIND ADVISORY (SEE LAXNPWLOX).
GALE WARNING (SEE LAXCWFLOX).
HIGH RIP CURRENT RISK (SEE LAXSRFLOX).

&&

PUBLIC...WOFFORD/RORKE
AVIATION...KAPLAN

WWW.WEATHER.GOV/LOSANGELES

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
600 AM PST FRI DEC 7 2007

CAZ034>041-044>047-051>054-059-087-088-081400-
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-
LOS ANGELES COUNTY VALLEYS-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-
600 AM PST FRI DEC 7 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

IN THE WAKE OF A COLD FRONTAL PASSAGE...SCATTERED SHOWERS WILL
CONTINUE ACROSS THE AREA THROUGH THE PERIOD. SOME OF THESE SHOWERS
COULD BE MODERATE OR LOCALLY HEAVY WHICH COULD POTENTIALLY
PRODUCE SOME MUD AND DEBRIS FLOWS IN THE RECENT BURN AREAS.

GUSTY WEST TO NORTHWEST WINDS WILL CONTINUE ACROSS THE AREA
THROUGH TODAY. THE STRONGEST WINDS WILL BE ACROSS THE MOUNTAINS
OF SANTA BARBARA...VENTURA AND LOS ANGELES COUNTIES AS WELL AS
THE ANTELOPE VALLEYS WHERE WINDS BETWEEN 25 TO 40 MPH WITH
HIGHER GUSTS WILL CONTINUE THROUGH TODAY. ACROSS THE SANTA
MONICA MOUNTAINS...SANTA CLARITA VALLEY...CUYAMA VALLEY AND THE
SAN LUIS OBISPO COUNTY MOUNTAINS...THE WINDS WILL BE SOMEWHAT
WEAKER...GENERALLY BETWEEN 15 AND 35 MPH WITH HIGHER GUSTS.

THE GUSTY WEST TO NORTHWEST WINDS WILL ALSO AFFECT THE COASTAL
WATERS...WHERE WINDS BETWEEN 25 AND 35 KNOTS WITH HIGHER GUSTS
WILL CONTINUE THROUGH THE DAY. SOME LINGERING WESTERLY SWELL
WILL CONTINUE TO PRODUCE DANGEROUS RIP CURRENT CONDITIONS
ALONG THE BEACHES.

* HIGH WIND WARNING..........SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* FLOOD WATCH................SEE WGUS66 KLOX - FFALOX FOR DETAILS *

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

* GALE WARNING...............SEE FZUS56 KLOX - CWFLOX FOR DETAILS *

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

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

.SPOTTER INFORMATION STATEMENT...

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

RORKE