Wind Advisory 69, NWS Los Angeles, CA

081 
WWUS76 KLOX 201901
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1101 AM PST SUN NOV 20 2011

...GUSTY WINDS TODAY ACROSS THE ANTELOPE VALLEY...

.STRONG SOUTH FLOW AHEAD OF AN APPROACHING FRONT WILL GENERATE
ADVISORY LEVEL WIND SPEEDS THROUGH MID AFTERNOON.

CAZ037-051-202015-
/O.CAN.KLOX.WI.Y.0069.000000T0000Z-111120T2300Z/
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-
SAN LUIS OBISPO COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...PASO ROBLES...ATASCADERO...
SANTA LUCIA WILDERNESS AREA...MACHESNA MOUNTAIN WILDERNESS AREA
1101 AM PST SUN NOV 20 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CANCELLED
THE WIND ADVISORY. 

WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA AND ARE NO LONGER 
EXPECTED.

$$

CAZ059-202300-
/O.CON.KLOX.WI.Y.0069.000000T0000Z-111120T2300Z/
ANTELOPE VALLEY-
INCLUDING THE CITIES OF...LANCASTER...PALMDALE
1101 AM PST SUN NOV 20 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

* WINDS AND TIMING...SOUTHERLY WINDS WILL INCREASE TO 20 TO 30 MPH
  WITH GUSTS TO 45 MPH IN THE NEXT FEW HOURS. THE WINDS WILL
  BECOME WESTERLY 10 TO 20 MPH BY LATE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

TRM

945 
WWUS76 KLOX 202309
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
309 PM PST SUN NOV 20 2011

...WIND ADVISORY ALLOWED TO EXPIRE FOR THE ANTELOPE VALLEY...

.SOUTHWEST WINDS HAVE DIMINISHED TO BELOW WIND ADVISORY THRESHOLDS
THIS AFTERNOON. BEHIND THE FRONT...WINDS WILL SHIFT TO THE WEST
AND REMAIN BELOW WIND ADVISORY THRESHOLDS BUT THERE WILL BE LOCAL
GUSTS TO 35 MPH THROUGH THIS EVENING...ESPECIALLY IN THE ADJACENT FOOTHILLS.

CAZ059-210015-
/O.EXP.KLOX.WI.Y.0069.000000T0000Z-111120T2300Z/
ANTELOPE VALLEY-
INCLUDING THE CITIES OF...LANCASTER...PALMDALE
309 PM PST SUN NOV 20 2011

...WIND ADVISORY HAS EXPIRED...

WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE FOR THE ANTELOPE VALLEY.
SOUTHWEST WINDS HAVE DIMINISHED TO 10 TO 20 MPH WITH LOCAL GUSTS
TO 35 MPH. WINDS WILL SHIFT TO THE WEST LATER THIS AFTERNOON BUT
SHOULD REMAIN BELOW WIND ADVISORY THRESHOLDS.

$$

KAPLAN

SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
257 AM PST SUN NOV 20 2011

.SYNOPSIS...
A FRONTAL SYSTEM WILL BRING RAIN AND MOUNTAIN SNOW TO THE REGION
TODAY...ALONG WITH CHILLY TEMPERATURES. DRY AND COOL WEATHER WILL
RETURN MONDAY...THEN IT WILL BE DRY AND WARMER TUESDAY AND
WEDNESDAY. ANOTHER STORM SYSTEM MAY BRING RAIN TO THE AREA WEDNESDAY
NIGHT INTO THANKSGIVING...THEN IT WILL BE DRY WITH A WARMING TREND
FRIDAY INTO THE WEEKEND.

&&

.SHORT TERM (TODAY-TUE)...DECENT FRONTAL SYSTEM PUSHING INTO SLO AND
NWRN SBA COUNTIES EARLY THIS MORNING. JET STREAK PUSHING INTO THE
COAST NEAR POINT CONCEPTION APPEARS TO HAVE CAUSED SOME ENHANCEMENT
OF THE FRONT...AND RAINFALL RATES OF ONE THIRD TO NEARLY ONE HALF
INCH PER HOUR WERE OCCURRING OVER THE HIGHER TERRAIN OF NWRN SLO
COUNTY. POTENT AND COMPACT UPPER LOW WAS CENTERED 150 NM W OF SAN
FRANCISCO AT 3 AM PST...AND WAS CONTINUING TO MOVE FAIRLY QUICKLY TO
THE SE. A NICE AREA OF UPPER LEVEL DIFFLUENCE HAS DEVELOPED JUST OFF
THE CENTRAL COAST AS THE UPPER CENTER APCHS...AND A COUPLE OF
LIGHTNING STRIKES HAVE BEEN DETECTED OFF THE COAST OF MONTEREY. THIS
UPPER DIFFLUENCE WILL LIKELY CONTINUE TO HELP THE FRONTAL SYSTEM
HOLD TOGETHER AS IT MOVES ACROSS THE REGION TODAY.

EXPECT A 4 TO 6 HOUR PERIOD OF MODERATE TO HEAVY RAIN IN MOST AREAS
TODAY...WITH THE HEAVIEST RAIN IN THE MORNING ACROSS SLO AND MOST OF
SBA COUNTIES...FROM LATE MORNING THROUGH MID AFTERNOON ACROSS VTU
COUNTY...AND DURING THE AFTERNOON AND EARLY EVENING ACROSS L.A.
COUNTY. AHEAD OF THE FRONTAL BAND...WARM AIR ADVECTION HAS CAUSED
SOME SHOWER ACTIVITY TO DEVELOP...AND EXPECT THIS ACTIVITY TO FILL
IN EARLY THIS MORNING. STEADY RAIN WILL LIKELY TURN TO SHOWERS ON
THE CENTRAL COAST BY LATE MORNING OR EARLY AFTERNOON...BUT NOT UNTIL
THE EVENING HOURS ACROSS L.A. COUNTY. THERE IS A SLIGHT CHANCE OF
TSTMS ACROSS SLO AND SBA COUNTIES AT ANY TIME TODAY...AND DURING THE
AFTERNOON AND EARLY EVENING HOURS ACROSS VTU AND L.A. COUNTIES.

SNOW LEVELS WILL BE RATHER TRICKY TODAY. WHILE SLY FLOW WILL TEND OF
CAUSE SNOW LEVELS TO RISE THIS MORNING...ESPECIALLY ON S FACING
COASTAL SLOPES...RATHER SIGNIFICANT HEIGHT AND THICKNESS FALLS WILL
TEND TO OFFSET THIS...AS WILL DYNAMIC COOLING ASSOCD WITH FAIRLY
STRONG OMEGA FIELDS. IN ADDITION...SOME COOL AND DRY AIR IS LIKELY
TRAPPED ACROSS THE INTERIOR SLOPES...WHICH WILL LEAD TO LOCALLY
LOWER SNOW LEVELS. FOR THE MOST PART...EXPECT SNOW LEVELS TO BE
BETWEEN 5000 AND 5500 FEET TODAY...THEN LOWER TO BETWEEN 4500 AND
5000 FEET LATE THIS AFTERNOON AND THIS EVENING. HOWEVER...WOULD NOT
BE SURPRISED TO HAVE SOME SNOW LEVELS DOWN TO 4000 FEET ON INTERIOR
SLOPES. THIS COULD MAKE FOR POTENTIAL TRAVEL PROBLEMS ON PORTIONS OF
INTERSTATE 5 NEAR THE GRAPEVINE...THE HIGHEST ELEVATIONS OF HIGHWAY
14...AND PORTIONS OF HIGHWAY ROUTE 33 IN VENTURA COUNTY.

RAINFALL TOTALS SHOULD AVERAGE ONE HALF TO ONE AND A QUARTER INCHES
(0.50 TO 1.25) IN MOST AREAS...WITH LOCAL TOTALS UP TO 2 INCHES
POSSIBLE ON AND BELOW SOUTH AND SOUTHWEST FACING SLOPES...ESPECIALLY
FROM WRN VTU COUNTY NWD. EXPECT SNOWFALL TOTALS OF 4 TO 8 INCHES IN
MOST AREAS ABOVE 5000 OR 5500 FEET...WITH LOCAL TOTALS UP TO ONE
FOOT POSSIBLE.

GUSTY SOUTH WINDS WILL AFFECT THE MTNS AND INTERIOR VLYS OF SLO
COUNTY THIS MORNING...WITH GUSTY SOUTHWEST WINDS ACROSS THE ANTELOPE
VALLEY...ESPECIALLY IN THE FOOTHILLS. WINDS SHOULD BE ABLE TO MEET
WIND ADVISORY LEVELS IN THESE AREAS.

SHOWER ACTIVITY WILL END IN MOST AREAS BY MIDNIGHT...ALTHOUGH SOME
LINGERING SHOWERS ARE POSSIBLE IN THE MTNS OF L.A. AND VTU COUNTIES
THROUGH EARLY MONDAY. A WEAK FLAT RIDGE WILL BUILD INTO THE REGION
ON MONDAY...AND SKIES SHOULD BE PARTLY CLOUDY IN MOST AREAS.
HOWEVER...IT STILL WILL BE CHILLY...WITH TEMPS 5 TO 10 DEGREES
BELOW NORMAL IN MOST AREAS.

THE RIDGE WILL AMPLIFY SOME ACROSS THE REGION ON TUE...AND WITH
RISING HEIGHTS/THICKNESSES AND SEVERAL DEGREES OF WARMING AT 850 AND
950 MB...EXPECT SEVERAL DEGREES OF WARMING...WITH TEMPS ALMOST BACK
UP TO NORMAL LEVELS IN MOST AREAS. SKIES WILL BE MOSTLY CLEAR.

.LONG TERM (WED-SAT)...THE RIDGE ACROSS THE REGION WILL BEGIN TO
FLATTEN ON WED AS A LARGE TROUGH MOVES INTO THE ERN PACIFIC. THERE
WILL PROBABLY BE SOME INCREASE IN HIGH CLOUDS...ESPECIALLY N OF PT
CONCEPTION. TEMPS WILL PROBABLY BE DOWN A COUPLE OF
DEGREES...ESPECIALLY IN COASTAL AREAS AND N OF PT CONCEPTION. A
FRONTAL SYSTEM ASSOCIATED WITH THE AFOREMENTIONED TROUGH WILL LIKELY
AFFECT THE FORECAST AREA WED NIGHT INTO THANKSGIVING. THE 00Z AND
06Z RUNS OF THE GFS HAVE BACKED ON THE AMOUNT OF
RAINFALL...ESPECIALLY SOUTH OF POINT CONCEPTION...AND SOME TIMING
DIFFERENCES STILL EXIST. WHILE CONFIDENCE IN SOME RAIN DURING THE
WED NIGHT/THU TIME FRAME ARE RATHER HIGH...ESPECIALLY ACROSS SLO AND
SBA COUNTIES...DETAILS ARE STILL ARE BIT DIFFICULT TO NAIL DOWN. A
WEAK RIDGE BUILDING INTO THE W COAST WILL LIKELY BRING DRY WEATHER
ON FRI WITH A WARMING TREND...THEN SIGNIFICANT WARMING IS LIKELY
SAT AS THE RIDGE AMPLIFIES ACROSS THE W COAST.

&&

.AVIATION...

20/1130Z...

A FRONT WILL APPROACH AND MOVE THROUGH THE AREA TODAY. RAIN WILL
DEVELOP ACROSS ALL TAF SITES AND THERE WILL BE A SLIGHT CHANCE OF
TSTMS AS WELL. TAFS WILL FLUCTUATE BETWEEN MVFR AND IFR CIGS AND VIS
THROUGH THE DAY. CONFIDENCE IN TAFS IS LOW AS CONDITIONS WILL CHANGE
TOO FREQUENTLY TO CAPTURE BUT GOOD CONFIDENCE IN THE GENERAL PERIODS
OF IFR AND MVFR CONDS.

KLAX...LOW CONFIDENCE IN TAF. CIG AND VIS CONDITIONS WILL BOTH
RANDOMLY FLUCTUATE BETWEEN MVFR AND IFR. A SLIGHT CHANCE OF A TSTM
20Z-04Z. GOOD CONFIDENCE IN ESE WINDS 9 TO 12 KT 18Z-00Z.

KBUR...LOW CONFIDENCE IN TAF. CIG AND VIS CONDITIONS WILL BOTH
RANDOMLY FLUCTUATE BETWEEN MVFR AND IFR. A SLIGHT CHANCE OF A TSTM
20Z-04Z.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY (SEE LAXNPWLOX).
WINTER WEATHER ADVISORY (SEE LAXWSWLOX).
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
MARINE WEATHER STATEMENT (SEE LAXMWSLOX).

&&

PUBLIC...BRUNO
AVIATION...ASR
SYNOPSIS...DB

WWW.WEATHER.GOV/LOSANGELES

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1004 PM PST SAT NOV 19 2011

CAZ034>041-044>046-051>054-059-087-088-547-548-201400-
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-
1004 PM PST SAT NOV 19 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... OVERNIGHT THROUGH 6 AM SUNDAY

SCATTERED SHOWERS ARE EXPECTED THROUGH THE REGION OVERNIGHT

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY

A LOW PRESSURE SYSTEM WILL BRING MODERATE RAIN AND SNOW ABOVE 5000
FEET TO THE AREA ON SUNDAY...AS WELL AND BREEZY SOUTHEAST WINDS.
UNSTABLE AIR WITHIN THE ASSOCIATED COLD FRONT WILL BRING A SLIGHT
CHANCE OF THUNDERSTORMS AS WELL...WITH ISOLATED HEAVY
RAIN...LIGHTNING...SMALL HAIL...AND WATERSPOUTS POSSIBLE. WET
ROADWAYS SHOULD BE EXPECTED.

IN THE MOUNTAINS...SNOW ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED
AT ELEVATIONS ABOVE 5000 FEET. BY LATE SUNDAY...SNOW LEVELS COULD
DROP AS LOW WAS 4500 FEET...WITH SNOW POSSIBLY IMPACTING INTERSTATE
5 ACROSS THE GRAPEVINE.

ANOTHER STORM SYSTEM IS POSSIBLE FOR THE THANKSGIVING HOLIDAY.

* WINTER WEATHER ADVISORY....SEE WWUS46 KLOX - WSWLOX FOR DETAILS *

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

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

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

BRUNO