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Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
301 PM PDT TUE SEP 30 2014

CAZ034>041-044>046-051>054-059-087-088-547-548-012215-
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-
301 PM PDT TUE SEP 30 2014

...HOT...DRY AND BREEZY WEATHER WITH ELEVATED FIRE DANGER ACROSS
SOUTHWEST CALIFORNIA LATE WEDNESDAY THROUGH EARLY NEXT WEEK...

AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BEGIN TO BUILD OVER THE
WEST COAST ON WEDNESDAY...BRINGING A SIGNIFICANT WARMING AND
DRYING TREND TO SOUTHWEST CALIFORNIA THROUGH EARLY NEXT WEEK. IN
ADDITION...WEAK TO MODERATE OFFSHORE WINDS ARE EXPECTED TO
DEVELOP OVER THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND
VALLEYS WEDNESDAY INTO THURSDAY...AND PERSIST THROUGH FRIDAY.

AFTERNOON HIGH TEMPERATURES WILL RISE INTO THE 80S TO MID 90S
ACROSS THE COAST AND VALLEYS BY THURSDAY...AND TO AROUND 90 TO
THE LOWER 100S BY FRIDAY. THE HEAT IS EXPECTED TO PEAK ON SATURDAY
WITH VALLEY HIGHS AROUND 105 DEGREES. OVERNIGHT LOWS ARE EXPECTED
TO REMAIN RATHER WARM...IN THE MID TO UPPER 60S ACROSS THE
VALLEYS. OFFSHORE WINDS ARE EXPECTED TO PEAK THURSDAY MORNING
ACROSS LOS ANGELES AND VENTURA COUNTIES WITH NORTHEAST GUSTS UP
TO 35 MPH IN THE VALLEYS AND UP TO 45 MPH IN THE MOUNTAINS. A
DRYING AIR MASS IS EXPECTED ACROSS ALL OF SOUTHWEST CALIFORNIA
WITH RELATIVE HUMIDITIES FALLING INTO THE LOWER TEENS BY THURSDAY
AND INTO THE SINGLE DIGITS FOR LOCATIONS AWAY FROM THE COAST
FRIDAY THROUGH SUNDAY.

THE COMBINATION OF RISING TEMPERATURES...LOW HUMIDITY AND
OFFSHORE WINDS IN COMBINATION WITH CRITICALLY DRY
VEGETATION WILL BRING ELEVATED FIRE DANGER TO MUCH OF SOUTHWEST
CALIFORNIA LATE WEDNESDAY THROUGH EARLY NEXT WEEK. THE HIGHEST
FIRE DANGER IS EXPECTED TO BE ACROSS THE LOS ANGELES AND VENTURA
COUNTY MOUNTAINS AND VALLEYS WHERE THE STRONGEST NORTHEAST WINDS
ARE LIKELY TO OCCUR. (SEE LAXRFWLOX FOR DETAILS).


$$

SMITH/MW





Fire Weather Watch

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1252 PM PDT TUE SEP 30 2014

...CRITICAL FIRE WEATHER CONDITIONS LIKELY WEDNESDAY NIGHT
THROUGH FRIDAY EVENING FOR THE LOS ANGELES AND VENTURA COUNTY
MOUNTAINS AND VALLEYS DUE TO LOW HUMIDITIES AND GUSTY NORTHEAST
WINDS...

.AN UPPER LEVEL RIDGE BUILDING OVER THE REGION WILL BRING AN
EXTENDED PERIOD OF VERY HOT AND DRY CONDITIONS TO SOUTHWEST
CALIFORNIA STARTING THURSDAY AND CONTINUING THROUGH THE WEEKEND.
IN ADDITION...GUSTY NORTHEAST WINDS ARE EXPECTED TO DEVELOP AS
EARLY AS WEDNESDAY MORNING...PEAKING WEDNESDAY NIGHT INTO THURSDAY
MORNING WITH GUSTS UP TO 40 MPH IN THE MOUNTAINS AND UP TO 30 MPH
ACROSS THE VALLEYS. THE WINDS ARE LIKELY TO DIMINISH SOME THURSDAY
AFTERNOON AND THEN STRENGTHEN AGAIN THURSDAY NIGHT INTO FRIDAY
MORNING. HUMIDITIES WILL LOWER RAPIDLY WEDNESDAY NIGHT AND
CONTINUE FALLING THURSDAY WITH WIDESPREAD VALUES AT OR BELOW 10
PERCENT.

THE COMBINATION OF HIGH TEMPERATURES...LOW HUMIDITY AND GUSTY
WINDS ARE LIKELY TO BRING CRITICAL FIRE WEATHER CONDITIONS TO THE
LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND VALLEYS. THERE IS A
POSSIBILITY THAT A FEW HOURS OF CRITICAL CONDITIONS WILL SPREAD
TO THE VENTURA COUNTY COASTAL PLAIN THURSDAY MORNING. THE HOT AND
DRY CONDITIONS ARE EXPECTED TO PERSIST INTO EARLY NEXT WEEK.

CAZ246-253-254-011700-
/O.CON.KLOX.FW.A.0008.141002T0700Z-141004T0200Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
VENTURA COUNTY MOUNTAINS / LOS PADRES NATIONAL FOREST-
LOS ANGELES COUNTY MOUNTAINS / ANGELES NATIONAL FOREST-
1252 PM PDT TUE SEP 30 2014

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH FRIDAY EVENING FOR THE LOS ANGELES AND VENTURA COUNTY
MOUNTAINS INCLUDING THE SANTA MONICA MOUNTAINS FOR LOW HUMIDITIES
AND GUSTY NORTHEAST WINDS...

* WINDS...POTENTIAL FOR NORTHEAST WINDS INCREASING TO 15 TO 25
  MPH WITH GUSTS UP TO 35 MPH LATE WEDNESDAY EVENING THROUGH
  THURSDAY MORNING. THE WINDS MAY DIMINISH SOME THURSDAY
  AFTERNOON BEFORE INCREASING AGAIN THURSDAY NIGHT.

* RELATIVE HUMIDITY...HUMIDITIES IN THE LOWER TEENS TO UPPER
  SINGLE DIGITS WILL BE POSSIBLE THURSDAY. POOR HUMIDITY
  RECOVERIES ARE LIKELY THURSDAY NIGHT...WITH WIDESPREAD SINGLE
  DIGIT HUMIDITIES POSSIBLE FRIDAY.

* TEMPERATURES...RISING INTO THE 80S TO LOWER 90S BY THURSDAY...
  AND INTO THE MID 80S TO MID 90S ON FRIDAY.

* IMPACTS...WITH EXTREMELY DRY FUELS IN PLACE...IF FIRE IGNITION
  OCCURS THERE COULD BE RAPID SPREAD OF WILDFIRE THAT WOULD LEAD
  TO A THREAT TO LIFE AND PROPERTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR
FIRE CREWS IN THE FIELD OF THIS FIRE WEATHER WATCH. LISTEN FOR
LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS.

&&

$$



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Page last modified: May 16, 2007
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