Alert archive / California / High Wind Watches in 2012

High Wind Watch 11, NWS Los Angeles, CA

December 7, 2012

NWS Los Angeles, CA issued this high wind watch at Dec 7, 2012, 2:23 PM PST. It took effect at Dec 9, 2012, 12:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 7, 2012, 2:23 PM PST (22:23 UTC)
In effect from
Dec 9, 2012, 12:00 PM PST
Expired
Dec 8, 2012, 1:55 PM PST
In force
Issued by
NWS Los Angeles, CA

The text

As transmitted, in the capitals the NWS used until 2016.

180 
WWUS76 KLOX 072223
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
223 PM PST FRI DEC 7 2012

...HIGH WIND WATCH IN EFFECT LATE SUNDAY MORNING THROUGH MONDAY 
AFTERNOON...

.STRONG HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN OVER THE
WEEKEND...WITH LOWER PRESSURE ALONG THE SOUTHWEST CALIFORNIA
COAST. THIS PRESSURE GRADIENT WILL BRING INCREASING NORTHEAST
WINDS TO THE AREA LATE SUNDAY MORNING THROUGH MONDAY. STRONG
WINDS WITH DAMAGING WIND GUSTS ARE EXPECTED OVER THE MOUNTAINS OF
LOS ANGELES AND VENTURA COUNTIES...INCLUDING THE SANTA MONICA
MOUNTAINS. GUSTY WINDS ARE ALSO LIKELY TO AFFECT THE VENTURA AND
LOS ANGELES COAST AND VALLEY LOCATIONS DURING THIS TIME PERIOD.

CAZ046-053-054-081400-
/O.NEW.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...TOPANGA...LOCKWOOD VALLEY...
MOUNT PINOS...ACTON...MOUNT WILSON...SANDBERG
223 PM PST FRI DEC 7 2012

...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HIGH WIND WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON.

* WINDS AND TIMING...NORTHEAST WINDS INCREASING TO 25 TO 40 MPH
  WITH GUSTS UP TO 65 MPH BY LATE SUNDAY MORNING...CONTINUING
  THROUGH LATE MONDAY AFTERNOON. THE PEAK WINDS ARE EXPECTED TO
  OCCUR SUNDAY AFTERNOON AND EVENING...AND AGAIN MONDAY AFTERNOON.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR OPERATORS OF HIGH PROFILE VEHICLES. IN ADDITION...HIGH WINDS
  MAY RESULT IN DOWNED TREE LIMBS AND POWER LINES 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$
5 follow-up statements
209 
WWUS76 KLOX 081046
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
246 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT FOR THE LOS ANGELES COASTAL AREAS
THROUGH MID MORNING...

...HIGH WIND WATCH IN EFFECT LATE SUNDAY MORNING THROUGH MONDAY
AFTERNOON...

.AREAS OF DENSE FOG HAVE DEVELOPED ACROSS PORTIONS OF
THE LOS ANGELES COASTAL AREAS THIS MORNING. THE DENSE FOG WILL
AFFECT THE LONG BEACH AREA...THE LOS ANGELES AIRPORT AREA AND
OTHER COASTAL LOCATIONS. FOG SHOULD BEGIN TO LIFT BY MID MORNING.

STRONG HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN OVER THE
WEEKEND. THIS PRESSURE GRADIENT WILL BRING MODERATE POSSIBLY STRONG NORTHEAST
WINDS TO THE AREA LATE SUNDAY MORNING THROUGH MONDAY. STRONG WINDS
WITH DAMAGING WIND GUSTS ARE POSSIBLE OVER THE MOUNTAINS OF LOS
ANGELES AND VENTURA COUNTIES...INCLUDING THE SANTA MONICA
MOUNTAINS. GUSTY WINDS ARE ALSO LIKELY TO AFFECT THE VENTURA AND
LOS ANGELES COAST AND VALLEY LOCATIONS DURING THIS TIME PERIOD.

CAZ041-081800-
/O.NEW.KLOX.FG.Y.0024.121208T1046Z-121208T1800Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF...MALIBU...SANTA MONICA...BEVERLY HILLS...
HOLLYWOOD...LONG BEACH
246 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS
MORNING.

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND 
  AROUND THE LONG BEACH AREA...GARDENA...AND WEST LOS ANGELES 
  INCLUDING LOS ANGELES AIRPORT. SOME HIGHWAYS AFFECTED WILL 
  INCLUDE THE 710...110...405 AND THE PACIFIC COAST HIGHWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ046-053-054-081800-
/O.CON.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...TOPANGA...LOCKWOOD VALLEY...
MOUNT PINOS...ACTON...MOUNT WILSON...SANDBERG
246 AM PST SAT DEC 8 2012

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON...

* WINDS AND TIMING...NORTHEAST WINDS INCREASING TO 25 TO 40 MPH 
  WITH GUSTS UP TO 60 MPH BY LATE SUNDAY MORNING...CONTINUING 
  THROUGH LATE MONDAY AFTERNOON. THE PEAK WINDS ARE EXPECTED TO 
  OCCUR SUNDAY AFTERNOON AND EVENING...AND AGAIN MONDAY 
  AFTERNOON.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR OPERATORS OF HIGH PROFILE VEHICLES. IN ADDITION...HIGH 
  WINDS MAY RESULT IN DOWNED TREE LIMBS AND POWER LINES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

KAPLAN/ASR
108 
WWUS76 KLOX 081256
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
456 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT FOR THE LOS ANGELES COASTAL AREAS
AND SAN GABRIEL VALLEY THROUGH MID MORNING...

...HIGH WIND WATCH IN EFFECT LATE SUNDAY MORNING THROUGH MONDAY
AFTERNOON...

.AREAS OF DENSE FOG HAVE DEVELOPED ACROSS PORTIONS OF THE LOS
ANGELES COASTAL AREAS AND PORTIONS OF THE SAN GABRIEL VALLEY THIS
MORNING. THE DENSE FOG WILL AFFECT MUCH OF THE LOS ANGELES BASIN
AND OTHER PORTIONS OF THE SAN GABRIEL VALLEY. FOG SHOULD BEGIN TO
LIFT BY MID MORNING.

STRONG HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN OVER THE
WEEKEND. THIS PRESSURE GRADIENT WILL BRING MODERATE POSSIBLY
STRONG NORTHEAST WINDS TO THE AREA LATE SUNDAY MORNING THROUGH
MONDAY. STRONG WINDS WITH DAMAGING WIND GUSTS ARE POSSIBLE OVER
THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...INCLUDING THE
SANTA MONICA MOUNTAINS. GUSTY WINDS ARE ALSO LIKELY TO AFFECT THE
VENTURA AND LOS ANGELES COAST AND VALLEY LOCATIONS DURING THIS
TIME PERIOD.

CAZ548-081800-
/O.EXA.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...PASADENA...SAN GABRIEL...POMONA
456 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS
MORNING.

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING 
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND AROUND
  WHITTIER...EAST LOS ANGELES...ALHAMBRA. SOME HIGHWAYS AFFECTED
  WILL INCLUDE THE 710...605...10...60 AND POSSIBLY THE 210.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ041-081800-
/O.CON.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF...MALIBU...SANTA MONICA...BEVERLY HILLS...
HOLLYWOOD...LONG BEACH
456 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING 
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND 
  AROUND THE LONG BEACH AREA...GARDENA...AND WEST LOS ANGELES 
  INCLUDING LOS ANGELES AIRPORT. SOME HIGHWAYS AFFECTED WILL 
  INCLUDE THE 710...110...405 AND THE PACIFIC COAST HIGHWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ046-053-054-081800-
/O.CON.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...TOPANGA...LOCKWOOD VALLEY...
MOUNT PINOS...ACTON...MOUNT WILSON...SANDBERG
456 AM PST SAT DEC 8 2012

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON...

* WINDS AND TIMING...NORTHEAST WINDS INCREASING TO 25 TO 40 MPH 
  WITH GUSTS UP TO 60 MPH BY LATE SUNDAY MORNING...CONTINUING 
  THROUGH LATE MONDAY AFTERNOON. THE PEAK WINDS ARE EXPECTED TO 
  OCCUR SUNDAY AFTERNOON AND EVENING...AND AGAIN MONDAY 
  AFTERNOON.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR OPERATORS OF HIGH PROFILE VEHICLES. IN ADDITION...HIGH 
  WINDS MAY RESULT IN DOWNED TREE LIMBS AND POWER LINES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

KAPLAN
781 
WWUS76 KLOX 081315
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
515 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT FOR THE LOS ANGELES BASIN...SAN GABRIEL
VALLEY AND VENTURA COUNTY COAST THROUGH MID MORNING...

...HIGH WIND WATCH IN EFFECT LATE SUNDAY MORNING THROUGH MONDAY
AFTERNOON...

.AREAS OF DENSE FOG HAVE DEVELOPED ACROSS THE VENTURA COUNTY
COAST...PORTIONS OF THE SAN GABRIEL VALLEY AND HAS AFFECTED THE
ENTIRE LOS ANGELES BASIN THIS MORNING. FOG SHOULD BEGIN TO LIFT BY
MID MORNING.

STRONG HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN OVER THE
WEEKEND. THIS PRESSURE GRADIENT WILL BRING MODERATE POSSIBLY
STRONG NORTHEAST WINDS TO THE AREA LATE SUNDAY MORNING THROUGH
MONDAY. STRONG WINDS WITH DAMAGING WIND GUSTS ARE POSSIBLE OVER
THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...INCLUDING THE
SANTA MONICA MOUNTAINS. GUSTY WINDS ARE ALSO LIKELY TO AFFECT THE
VENTURA AND LOS ANGELES COAST AND VALLEY LOCATIONS DURING THIS
TIME PERIOD.

CAZ040-081800-
/O.EXA.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
VENTURA COUNTY COAST-
INCLUDING THE CITIES OF...VENTURA...OXNARD...CAMARILLO
515 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST THIS
MORNING.

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING 
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND AROUND
  POINT MUGU...OXNARD AND CAMARILLO. SOME HIGHWAYS AFFECTED
  WILL INCLUDE THE 101..AND HIGHWAY 1.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ041-081800-
/O.CON.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF...MALIBU...SANTA MONICA...BEVERLY HILLS...
HOLLYWOOD...LONG BEACH
515 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING 
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND 
  AROUND THE LONG BEACH AREA...GARDENA...AND WEST LOS ANGELES 
  INCLUDING LOS ANGELES AIRPORT. SOME HIGHWAYS AFFECTED WILL 
  INCLUDE THE 710...110...405 AND THE PACIFIC COAST HIGHWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ548-081800-
/O.CON.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...PASADENA...SAN GABRIEL...POMONA
515 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG THROUGH 10 AM THIS MORNING...WITH IMPROVING 
  VISIBILITIES AS FOG LIFTS.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND 
  AROUND WHITTIER...EAST LOS ANGELES...ALHAMBRA. SOME HIGHWAYS 
  AFFECTED WILL INCLUDE THE 710...605...10...60 AND POSSIBLY THE 
  210.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ046-053-054-081800-
/O.CON.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...TOPANGA...LOCKWOOD VALLEY...
MOUNT PINOS...ACTON...MOUNT WILSON...SANDBERG
515 AM PST SAT DEC 8 2012

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON...

* WINDS AND TIMING...NORTHEAST WINDS INCREASING TO 25 TO 40 MPH 
  WITH GUSTS UP TO 60 MPH BY LATE SUNDAY MORNING...CONTINUING 
  THROUGH LATE MONDAY AFTERNOON. THE PEAK WINDS ARE EXPECTED TO 
  OCCUR SUNDAY AFTERNOON AND EVENING...AND AGAIN MONDAY 
  AFTERNOON.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR OPERATORS OF HIGH PROFILE VEHICLES. IN ADDITION...HIGH 
  WINDS MAY RESULT IN DOWNED TREE LIMBS AND POWER LINES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

KAPLAN
282 
WWUS76 KLOX 081749
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
949 AM PST SAT DEC 8 2012

...HIGH WIND WATCH IN EFFECT LATE SUNDAY MORNING THROUGH MONDAY
AFTERNOON...

.STRONG HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN OVER THE
WEEKEND. THIS PRESSURE GRADIENT WILL BRING MODERATE POSSIBLY
STRONG NORTHEAST WINDS TO THE AREA LATE SUNDAY MORNING THROUGH
MONDAY. STRONG WINDS WITH DAMAGING WIND GUSTS ARE POSSIBLE OVER
THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...INCLUDING THE
SANTA MONICA MOUNTAINS. GUSTY WINDS ARE ALSO LIKELY TO AFFECT THE
VENTURA AND LOS ANGELES COAST AND VALLEY LOCATIONS DURING THIS
TIME PERIOD.

CAZ041-081900-
/O.EXP.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF...MALIBU...SANTA MONICA...BEVERLY HILLS...
HOLLYWOOD...LONG BEACH
949 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

FOG IS BEGINNING TO DISSIPATE ACROSS THE LOS ANGELES BASIN...SO
THE DENSE FOG ADVISORY WILL BE ALLOWED TO EXPIRE. LOCALLY DENSE
FOG MAY PERSIST THROUGH LATE IN THE MORNING.

$$

CAZ548-081900-
/O.EXP.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...PASADENA...SAN GABRIEL...POMONA
949 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

FOG IS BEGINNING TO DISSIPATE ACROSS THE SAN GABRIEL VALLEY ...SO
THE DENSE FOG ADVISORY WILL BE ALLOWED TO EXPIRE. LOCALLY DENSE
FOG MAY PERSIST THROUGH LATE IN THE MORNING..

$$

CAZ040-081900-
/O.EXP.KLOX.FG.Y.0024.000000T0000Z-121208T1800Z/
VENTURA COUNTY COAST-
INCLUDING THE CITIES OF...VENTURA...OXNARD...CAMARILLO
949 AM PST SAT DEC 8 2012

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

FOG IS DISSIPATING ACROSS THE VENTURA COASTAL PLAIN...SO THE
DENSE FOG ADVISORY WILL BE ALLOWED TO EXPIRE. LOCALLY DENSE FOG
MAY PERSIST THROUGH LATE IN THE MORNING..

$$

CAZ046-053-054-090200-
/O.CON.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...TOPANGA...LOCKWOOD VALLEY...
MOUNT PINOS...ACTON...MOUNT WILSON...SANDBERG
949 AM PST SAT DEC 8 2012

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY AFTERNOON...

* WINDS AND TIMING...NORTHEAST WINDS INCREASING TO 25 TO 40 MPH 
  WITH GUSTS UP TO 60 MPH BY LATE SUNDAY MORNING...CONTINUING 
  THROUGH LATE MONDAY AFTERNOON. THE PEAK WINDS ARE EXPECTED TO 
  OCCUR SUNDAY AFTERNOON AND EVENING...AND AGAIN MONDAY 
  AFTERNOON.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR OPERATORS OF HIGH PROFILE VEHICLES. IN ADDITION...HIGH 
  WINDS MAY RESULT IN DOWNED TREE LIMBS AND POWER LINES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$
678 
WWUS76 KLOX 082155
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
155 PM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT FOR THE LOS ANGELES BASIN AND
VENTURA COUNTY COAST FROM MIDNIGHT TONIGHT THROUGH MID MORNING
SUNDAY...

...WIND ADVISORY IN EFFECT FOR LOS ANGELES AND VENTURA COUNTY
MOUNTAINS AND VALLEYS SUNDAY AFTERNOON THROUGH MONDAY...

.HIGH PRESSURE WILL BUILD INTO THE GREAT BASIN TONIGHT INTO
SUNDAY...BRINGING MODERATE NORTHEAST WINDS TO THE AREA SUNDAY
AFTERNOON THROUGH MONDAY. GUSTY WINDS WILL AFFECT THE MOUNTAINS
OF LOS ANGELES AND VENTURA COUNTY INCLUDING THE SANTA MONICA
MOUNTAINS...THE SANTA CLARITA VALLEY AND THE VENTURA VALLEYS.
LOCALLY GUSTY WINDS ARE EXPECTED OVER THE FOOTHILLS OF THE SAN
GABRIEL AND SAN FERNANDO VALLEY. ISOLATED STRONG WINDS GUSTS WILL
BE POSSIBLE...MAINLY OVER THE MOUNTAINS.


CAZ053-054-090600-
/O.UPG.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
/O.NEW.KLOX.WI.Y.0079.121209T2200Z-121211T0000Z/
VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON...
MOUNT WILSON...SANDBERG
155 PM PST SAT DEC 8 2012

...WIND ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST
MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT.

* WINDS AND TIMING...NORTHEAST 20 TO 30 MPH WITH GUSTS UP TO 50
  MPH...WITH ISOLATED GUSTS TO 60 MPH. THE PEAK WINDS ARE EXPECTED
  TO OCCUR SUNDAY EVENING. THE GUSTY WINDS WILL BEGIN TO DECREASE
  MONDAY AFTERNOON...AND MAY INCREASE AGAIN LATE MONDAY AFTERNOON
  INTO THE EVENING.

* IMPACTS...GUSTY WINDS MAY MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR OPERATORS OF HIGH PROFILE VEHICLES. 

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.

&&

$$

CAZ046-090600-
/O.UPG.KLOX.HW.A.0011.121209T2000Z-121211T0200Z/
/O.NEW.KLOX.WI.Y.0079.121209T2200Z-121211T0000Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
INCLUDING THE CITY OF...TOPANGA
155 PM PST SAT DEC 8 2012

...WIND ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST
MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT.

* WINDS AND TIMING...NORTH 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.
  THE PEAK WINDS ARE EXPECTED TO OCCUR SUNDAY EVENING. THE GUSTY
  WINDS WILL BEGIN TO DECREASE MONDAY AFTERNOON...AND MAY INCREASE
  AGAIN LATE MONDAY AFTERNOON INTO THE EVENING.

* IMPACTS...GUSTY WINDS MAY MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR OPERATORS OF HIGH PROFILE VEHICLES. 

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.

&&

$$

CAZ040-041-090600-
/O.NEW.KLOX.FG.Y.0025.121209T0800Z-121209T1800Z/
VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF...VENTURA...OXNARD...CAMARILLO...MALIBU...
SANTA MONICA...BEVERLY HILLS...HOLLYWOOD...LONG BEACH
155 PM PST SAT DEC 8 2012

...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
DENSE FOG ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM PST SUNDAY.

* VISIBILITIES...ONE QUARTER MILE OR LESS AT TIMES.

* TIMING...DENSE FOG IS EXPECTED TO OCCUR AFTER MIDNIGHT TONIGHT
  AND PERSIST THROUGH 10 AM SUNDAY MORNING.

* IMPACTS...TRAVEL WILL BE HAMPERED BY THE DENSE FOG IN AND AROUND
  COASTAL AREAS. SOME HIGHWAYS AFFECTED WILL INCLUDE THE 101...THE
  710...110...405 AND THE PACIFIC COAST HIGHWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITY WILL FREQUENTLY BE REDUCED
TO ONE QUARTER MILE OR LESS. IF DRIVING...SLOW DOWN...USE YOUR
HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. FOG CAN
ALSO MAKE ROAD SURFACES SLICK SO AVOID USING EXCESSIVE SPEED.

&&

$$

CAZ044-045-090600-
/O.NEW.KLOX.WI.Y.0079.121209T2200Z-121211T0000Z/
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
INCLUDING THE CITIES OF...SANTA PAULA...FILLMORE...OJAI...PIRU...
THOUSAND OAKS...NEWBURY PARK...MOORPARK...SIMI VALLEY
155 PM PST SAT DEC 8 2012

...WIND ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST
MONDAY.

* WINDS AND TIMING...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 4O
  MPH. THE PEAK WINDS ARE EXPECTED TO OCCUR SUNDAY EVENING. THE
  GUSTY WINDS WILL BEGIN TO DECREASE MONDAY AFTERNOON...AND MAY
  INCREASE AGAIN LATE MONDAY AFTERNOON INTO THE EVENING.

* IMPACTS...GUSTY WINDS MAY MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR OPERATORS OF HIGH PROFILE VEHICLES. 

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.

&&

$$

CAZ088-090600-
/O.NEW.KLOX.WI.Y.0079.121209T2200Z-121211T0000Z/
SANTA CLARITA VALLEY-
INCLUDING THE CITIES OF...SANTA CLARITA...NEWHALL...VALENCIA
155 PM PST SAT DEC 8 2012

...WIND ADVISORY IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 2 PM SUNDAY TO 4 PM PST
MONDAY.

* WINDS AND TIMING...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 40
  MPH. THE PEAK WINDS ARE EXPECTED TO OCCUR SUNDAY EVENING. THE
  GUSTY WINDS WILL BEGIN TO DECREASE MONDAY AFTERNOON...AND MAY
  INCREASE AGAIN LATE MONDAY AFTERNOON INTO THE EVENING.

* IMPACTS...GUSTY WINDS MAY MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR OPERATORS OF HIGH PROFILE VEHICLES. 

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.

&&

$$

What forecasters said that day

The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this high wind watch went out at Dec 7, 10:06 AM PST, 4 hours 17 minutes earlier.

Area forecast discussion, Dec 7, 10:06 AM PST, 4 hours 17 minutes before
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1006 AM PST FRI DEC 7 2012

.SYNOPSIS...
PATCHY LOW CLOUDS AND DENSE FOG WILL AFFECT PORTIONS OF LOS ANGELES
AND VENTURA COASTS THROUGH LATE THIS MORNING. LIGHT TO MODERATE
OFFSHORE BREEZES ARE EXPECTED TODAY ALONG WITH WARMER TEMPERATURES.
SATURDAY WILL COOL SLIGHTLY AND THEN TEMPERATURES WILL REBOUND ON
SUNDAY. A MODERATE TO LOCALLY STRONG OFFSHORE WIND EVENT IS POSSIBLE
LATE SUNDAY INTO MONDAY.

&&

.UPDATE...VISIBLE SATELLITE IMAGES SHOW LOW CLOUDS OVER MOST OF THE
LOS ANGELES COASTAL PLAIN AT 9 AM PST THIS MORNING...EXTENDING
LOCALLY INTO THE SAN GABRIEL VALLEY. VERY DENSE FOG WAS WIDESPREAD
THROUGH THE MID-MORNING HOURS....BUT THE LATEST SURFACE OBSERVATIONS
SHOW THAT SOME IMPROVEMENT JUST IS STARTING TO TAKE PLACE WITH
STATIONS REPORTING VISIBILITIES RANGING FROM 1/4 MILE TO 1 MILE
ACROSS THE AREA. THE DENSE FOG ADVISORY WAS EXTENDED TO 10 AM THIS
MORNING AND EXPECT THAT BY THAT TIME THERE WILL STILL BE LOCALLY
DENSE PATCHES OF FOG...WITH CLEARING TO PROGRESS THROUGH THE
MORNING...AND SUNNY SKIES ACROSS THE AREA BY THIS AFTERNOON. SOME
LOW CLOUDINESS IS ALSO EVIDENT OVER INTERIOR SLO COUNTY...ALONG WITH
THE CUYAMA VALLEY AND THE NORTHERN VTU MOUNTAIN SLOPES. THESE CLOUDS
WILL ALSO DISSIPATE BY EARLY THIS AFTERNOON.

WEAK OFFSHORE FLOW ACROSS THE AREA WILL PRODUCE A WARMER DAY ACROSS
THE COAST AND VALLEYS COMPARED TO YESTERDAY...ALTHOUGH TEMPERATURES
FOR THE LA COAST AREA WILL LIKELY REMAIN IN THE UPPER 60S TO LOWER
70S. THE INTERIOR AREAS AND DESERTS ARE EXPECTED TO DROP A COUPLE OF
DEGREES COMPARED TO YESTERDAY AS COLD AIR MOVES INTO THE AREA IN THE
NORTHEAST FLOW.

THE NORTHEAST WINDS WILL INCREASE TO 10 TO 20 MPH ACROSS SOME OF THE
VALLEYS INCLUDING THE VTU VALLEYS...THE STA CLARITA AND SAN FERNANDO
VALLEYS...AND THE SANTA MONICA MOUNTAINS. THE INTERIOR LA MOUNTAINS
WILL SEE OFFSHORE WINDS UP TO 25 MPH THIS AFTERNOON.

.FROM PREVIOUS DISCUSSION (TONIGHT-SUN)...
BY FRIDAY NIGHT INTO SATURDAY MORNING SKIES WILL BE CLEAR BUT THERE
COULD BE SOME PATCHY DENSE FOG AROUND THE PALOS VERDES PENINSULA.
HAVE LEFT FOG OUT OF THE FORECAST...BUT WOULD NOT BE SURPRISED IF
SOME PATCHY DENSE FOG DID DEVELOP AROUND THE LONG BEACH AREA SAT
MORNING. THERE WILL BE A LITTLE KINK IN THE BROAD NW FLOW ALOFT AT
500 MB WHICH WILL CAUSE A FEW DEGREES OF COOLING ACROSS THE BOARD ON
SATURDAY EXCEPT FOR THE ANTELOPE VALLEY. THE MAIN EFFECT WILL BE
THAT WINDS WILL SHIFT TO THE NORTH-NORTHWEST AS THIS WEAK FEATURE
ALOFT PUSHES THROUGH THE AREA.

BY SUNDAY...A CHANGE TO THE SYNOPTIC PATTERN WILL BRING A
SIGNIFICANT CHANGE TO OUR WEATHER. AN UPPER LEVEL LOW OVER MONTANA
WILL DROP SOUTH INTO ARIZ ON SUNDAY BRINGING DECENT COLD AIR
ADVECTION TO SOUTHEASTERN CAL. BEHIND THIS UPPER TROUGH...A
RELATIVELY STRONG SURFACE HIGH (1034 MB) WILL DEVELOP OVER NRN
NEVADA CAUSING A MODERATE TO LOCALLY STRONG BUT COOL SANTA ANA WIND
EVENT TO DEVELOP BY MID MORNING SUNDAY AND PEAK IN STRENGTH SUNDAY
EVENING AND PERSISTING INTO MONDAY. THE COMBINATION OF A STRONG
SURFACE GRADIENT BETWEEN LAX-DAG AND GOOD 850 MB SUPPORT DUE TO
STRONG THERMAL GRADIENT FROM THE DESERT WILL HELP TO ENHANCE THE
STRENGTH OF THIS WIND EVENT. A HIGH WIND WATCH COULD BE NEEDED FOR
THE MOUNTAINS AND POSSIBLY THE SANTA CLARITA VALLEY FOR
SUNDAY/SUNDAY NIGHT...WHILE WIND ADVISORIES WILL BE LIKELY FOR THE
USUAL WIND PRONE AREAS. EXPECT MUCH COOLER HIGH TEMPS FOR ANTELOPE
VALLEY IN THE 50S...WHILE THE LA/VTU COAST AND COASTAL VALLEYS WARM
UP INTO THE 70S. SKIES WILL REMAIN CLEAR ACROSS THE REGION AND THERE
WILL BE SOME ABOVE NORMAL TEMPS FOR THE CENTRAL COAST AS WELL WITH
THIS OFFSHORE FLOW.

.LONG TERM (MON-THU)...NOT MUCH CHANGE TO THE FORECAST ON MONDAY
EXCEPT THAT THE OFFSHORE WINDS WILL BE A BIT WEAKER...BUT STILL
STRONG ENOUGH TO LIKELY WARRANT A WIND ADVISORY FOR THE USUAL WIND
PRONE LA/VTU LOCATIONS. WITH CONTINUED OFFSHORE AND A WARMING LOWER
ATMOSPHERE IN PLACE...SOME LA/VTU COUNTY VALLEYS COULD REACH 80
DEGREES WHILE MOST OTHER LA/VTU COAST AND VALLEYS REACH THE MID 70S
IN MANY LOCATIONS. BY TUESDAY...THERE SHOULD BE A BIT OF COOLING
ALONG THE COAST AS THE OFFSHORE GRADS WILL BEGIN TO TREND WEAKLY
ONSHORE. HIGH TEMPS ACROSS THE INLAND AREAS WILL REMAIN WELL ABOVE
NORMAL IN THE LOWER TO MID 70S...EXCEPT 60S ACROSS THE SLO/SBA
COUNTY VALLEYS. BY WED...ONSHORE FLOW WILL STRENGTHEN AHEAD OF AN
APPROACHING UPPER LVL TROUGH. TEMPS WILL BE SIGNIFICANTLY
COOLER...ESPECIALLY ACROSS THE MOUNTAINS. CLOUDS WILL BE ON THE
INCREASE AHEAD OF THE APPROACHING TROUGH WHILE LOW CLOUDS SHOULD
DEVELOP ONCE AGAIN ACROSS COASTAL AREAS. THE EUROPEAN MODEL BRINGS A
MORE VIGOROUS TROUGH OVER NORTHERN CAL INTO SOUTHERN CAL ON
THU...WHILE THE GFS IS WEAKER AND HAS A MORE INSIDE TRACK. HAVE
DECIDED TO LEAN TOWARDS THE EUROPEAN AS IT HAS BEEN THE MORE
CONSISTENT WITH RAIN EVENTS FOR A WHILE. THERE WILL BE A CHANCE
FOR RAIN ON THU...AND POSSIBLE INTO SATURDAY DEPENDING ON WHAT THE
MODELS END UP DOING. AS MODELS COME MORE INTO SYNC...WILL RAISE POPS
IF THIS TREND CONTINUES WITH THE ECMWF. EXPECT MUCH COOLER
CONDITIONS FOR THE LATTER PART OF THE WEEK. SNOW LEVELS WILL BE
LOWER WITH THIS POTENTIAL STORM SYSTEM DUE TO THE TRAJECTORY OF THE
STORM. THICKNESS LVLS INDICATED THAT SNOW LEVELS COULD LOWER TO 4500
FT ON THU/FRI.

&&

.AVIATION...07/1800Z.

MID/UPPER LEVEL TROUGH OF LOW PRESSURE UPSTREAM WILL MOVE OVER THE
AREA. UPPER LEVEL MODERATE WEST NORTHWEST WINDS WILL BECOME WEST
AFTER 08/05Z WHILE MID LEVEL LIGHT NORTH WINDS BECOME LIGHT WEST
NORTHWEST AFTER 08/18Z OVER THE AREA. MARINE LAYER TOP AT
APPROXIMATELY .8KFT THIS MORNING WILL DIFFER LITTLE SATURDAY
MORNING. MIXED AND WEAK ONSHORE AND OFFSHORE PRESSURE GRADIENT
THROUGH 08/03Z AND AFTER 08/21Z OTHERWISE WEAK OFFSHORE GRADIENT
WILL EXIST.

.KLAX...LIKELY SKC BY 07/21Z AND THROUGH 08/06Z. CHANCE VSBY 4SM HZ
BETWEEN 08/06-08/12Z. CHANCE INDEFINITE CIGS VV001 AND VSBY 1/2SM FG
BETWEEN 08/12-08/17Z. THEN CHANCE 4SM HZ BETWEEN 08/17-08/19Z.

.KBUR...LIKELY CURRENT SKY/VSBY CONDITION WILL PERSIST.

VIRTUALLY CERTAIN - 95-100%
VERY LIKELY       - 80-95%
LIKELY            - 60-80%
CHANCE            - 30-60%
VERY UNLIKELY     - 20% OR LESS

&&

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

&&

PUBLIC...KAPLAN/SMITH

WWW.WEATHER.GOV/LOSANGELES
Hazardous weather outlook, Dec 7, 8:15 AM PST, 6 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
815 AM PST FRI DEC 7 2012

CAZ034>041-044>046-051>054-059-087-088-547-548-081400-
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-
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-
815 AM PST FRI DEC 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY AND TONIGHT

DENSE FOG WITH VISIBILITIES LESS THAN ONE QUARTER MILE AT TIMES WILL
CONTINUE SOUTH OF DOWNTOWN LOS ANGELES TO THE COAST. LOW
VISIBILITIES ALSO EXTEND ACROSS THE SAN PEDRO CHANNEL TO CATALINA
ISLAND. EXPECT CONDITIONS TO SLOWLY IMPROVE THROUGH 10AM.

LOCALLY GUSTY NORTH TO NORTHEAST WINDS OF 25 TO 35 MPH WITH
HUMIDITIES LOWERING INTO THE TEENS WILL OCCUR ACROSS THE HIGHER
MOUNTAINS TODAY.

* DENSE FOG ADVISORY.........SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

A MODERATE SANTA ANA WILL DEVELOP ACROSS VENTURA AND LOS ANGELES
COUNTIES ON SUNDAY AND CONTINUE THROUGH MIDDAY MONDAY. NORTHEAST
WIND GUSTS COULD REACH 65 MPH IN THE FAVORED MOUNTAIN PASSES AND
CANYONS DURING THIS EVENT. HUMIDITIES WILL LIKELY DROP INTO THE
TEENS DURING THIS WIND EVENT WHICH WILL CREATE HEIGHTENED FIRE
WEATHER CONDITIONS.

ALTHOUGH THERE IS PLENTY OF UNCERTAINTY IN THE FORECAST NEXT
WEEK...THERE IS A POSSIBILITY OF RAIN ACROSS SOUTHWEST CALIFORNIA BY
THURSDAY. IF THIS SYSTEM SLIDES MORE TO OUR EAST THERE WOULD BE LESS
RISK OF RAIN AND A GREATER THREAT OF GUSTY WINDS RETURNING TO THE
REGION.

* 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.

BOLDT

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 6, 7:31 PM PSTWind AdvisoryLOX7 hr
Dec 7, 2:13 AM PSTDense Fog AdvisoryLOX8 hr
Dec 7, 10:05 AM PSTFire Weather WatchLOXLos Angeles48 hr

Nearby

High Wind Watches in California, 2012Every high wind watch in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.