High Wind Warning 1, NWS Los Angeles, CA

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1022 PM PST FRI JAN 1 2010

...UPDATED AVIATION SECTION...

.SYNOPSIS...GUSTY NORTH TO NORTHEAST WINDS WILL LAST THROUGH SUNDAY
MORNING IN LOCALLY FAVORED PASSES AND CANYONS...BRINGING MILD AND
DRY CONDITIONS FOR THE WEEKEND. COOLER TEMPERATURES AND PARTLY
CLOUDY SKIES MAY ARRIVE BY MIDWEEK...WITH AN UNSETTLED PATTERN LATE
NEXT WEEK.

&&

.SHORT TERM (TONIGHT-MON)...GRADIENTS CONTINUE TO BECOME
INCREASINGLY OFFSHORE THIS EVENING...AND WITH SOME UPPER LEVEL
SUPPORT AND SLIGHT COLD AIR ADVECTION IT LOOKS LIKE STRONG AND GUSTY
N TO NE CANYON WINDS WILL AFFECT THE MOUNTAINS OF SBA/VTU/L.A.
COUNTIES...THE S SBA COUNTY COAST...AND THE SANTA CLARITA VALLEY
OVERNIGHT INTO SAT MORNING. AS A RESULT...A WIND ADVISORY IS IN
EFFECT FOR THESE AREAS...WITH WINDS GUSTING TO 50 MPH OR MORE AT
TIMES IN THE MTNS...AND UP TO 45 MPH AT TIMES FOR THE SBA S COAST
AND SANTA CLARITA VALLEY. GUSTY N TO NE WINDS WILL ALSO BE POSSIBLE
FOR THE VTU COUNTY VALLEYS AND THE SAN FERNANDO VALLEY OVERNIGHT...
BUT WINDS HERE SHOULD REMAIN GENERALLY BELOW ADVISORY LEVELS. PLEASE
SEE LAXNPWLOX FOR FURTHER DETAILS ON THE WIND ADVISORIES.
OTHERWISE...MOSTLY CLEAR SKIES WILL COVER THE DISTRICT OVERNIGHT...
WITH TEMPS COOL IN WIND SHELTERED AREAS BUT MILD IN THE BREEZY TO
WINDY LOCATIONS FROM THE VALLEYS TO THE FOOTHILLS.

AN UPPER LEVEL RIDGE WILL BUILD INTO SRN CA ON SAT AND LINGER SAT
NIGHT INTO SUN MORNING BEFORE MOVING E SUN AFTERNOON. IT LOOKS LIKE
A WEAK UPPER LEVEL TROF WILL MOVE INTO THE REGION FOR MON. OFFSHORE
FLOW MAINLY NIGHT AND MORNING HOURS IS EXPECTED TO PERSIST OVER THE
DISTRICT SAT THRU MON MORNING...ALTHO WINDS SHOULD BE GENERALLY
BELOW ADVISORY LEVELS AFTER SAT MORNING...AND ARE EXPECTED TO BE
WEAKEST SUN NIGHT INTO MON MORNING. DRY AND MILD WEATHER WITH TEMPS
SEVERAL DEGREES ABOVE NORMAL IS EXPECTED FOR THE MOST PART SAT THRU
MON. THERE WILL ALSO BE SOME HI CLOUDS FROM TIME TO TIME DURING THE
PERIOD... OTHERWISE MOSTLY CLEAR SKIES SHOULD PREVAIL ACROSS THE
REGION.

...FROM PREVIOUS DISCUSSION...

.LONG TERM (TUE-FRI)...THE EXTENDED PERIOD LOOKS DRY THROUGH
THURSDAY WITH A GRADUAL DOWNWARD TREND IN TEMPERATURES. THE WEST
COAST RIDGE SLOWLY BREAKS DOWN UNDER THE STRAIN OF CONTINUED TROUGH
ENERGY APPROACHING FROM THE WEST. BY FRIDAY...BOTH THE GFS AND THE
ECMWF MODELS INDICATE A TROUGH IS FINALLY ABLE TO BREAK THROUGH AND
GIVE THE FORECAST AREA ITS FIRST CHANCE OF RAIN. THEREFORE...SLIGHT
CHANCE POPS HAVE BEEN INTRODUCED ON FRIDAY FOR AT LEAST THE NORTHERN
PORTIONS OF THE FORECAST AREA.

&&

.AVIATION...02/0622Z.
VFR CONDITIONS ARE EXPECTED AT ALL TERMINALS EXCEPT FOR VLIFR TO IFR
CONDITIONS EXPECTED AT KPRB BETWEEN 12Z AND 16Z...BUT THERE IS A
CHANCE THAT CONDITIONS COULD DETERIORATE AS SOON AS 10Z TONIGHT.
OTHERWISE...PERIODS OF MODERATE TO STRONG TURBULENCE AND LOW-LEVEL
WIND SHEAR WILL OCCUR AT KSBA...KVNY...AND KBUR AT LEAST 14Z
SATURDAY. WIND ISSUES COULD LINGER INTO 21Z.

KLAX...VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD WITH ANY
OFFSHORE WINDS REMAINING LESS THAN 10 KNOTS.

KBUR...VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD. PERIODS OF
MODERATE TO STRONG TURBULENCE AND LOW-LEVEL WIND SHEAR WILL OCCUR
THROUGH 15Z SATURDAY...WITH A 20 PERCENT CHANCE OF WIND ISSUES
PERSISTING UNTIL 21Z.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY (SEE LAXNPWLOX).
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).

&&

PUBLIC...SIRARD/SWEET
AVIATION...HALL
SYNOPSIS...BARTLING

WWW.WEATHER.GOV/LOSANGELES

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
325 PM PST FRI JAN 1 2010

CAZ034>041-044>046-051>054-059-087-088-547-548-021400-
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-
325 PM PST FRI JAN 1 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

GUSTY NORTHERLY WINDS ARE EXPECTED TO DEVELOP TONIGHT...MOSTLY NEAR
THE INTERSTATE 5 CORRIDOR AND THE SANTA YNEZ RANGE. THESE WINDS MAY
CREATE HAZARDOUS DRIVING CONDITIONS FOR MOTORISTS...ESPECIALLY THOSE
DRIVING HIGH-PROFILE VEHICLES.

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

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

GUSTY NORTHERLY WINDS WILL CONTINUE THROUGH AT LEAST SATURDAY
MORNING...MOSTLY NEAR THE INTERSTATE 5 CORRIDOR AND THE SANTA YNEZ
RANGE. THESE WINDS SHOULD SHIFT TO THE NORTHEAST ON SATURDAY...AND
WILL ALSO CREATE BREEZY CONDITIONS OVER MUCH OF LOS ANGELES AND
VENTURA COUNTIES. THESE WINDS MAY CREATE HAZARDOUS DRIVING
CONDITIONS FOR MOTORISTS...ESPECIALLY THOSE DRIVING HIGH-PROFILE
VEHICLES.

A MODERATE WESTERLY SWELL WILL PRODUCE INCREASED SURF AND A MODERATE
POSSIBILITY FOR RIP CURRENTS...ESPECIALLY ALONG THE CENTRAL COAST.

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

.SPOTTER INFORMATION STATEMENT...

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

KITTELL