Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
910 AM PDT SAT SEP 25 2010
...RED FLAG WARNINGS ISSUED FROM SATURDAY EVENING THROUGH MONDAY
EVENING FOR GUSTY NORTHEAST WINDS AND VERY LOW RELATIVE HUMIDITY
FOR THE MOUNTAINS OF VENTURA AND LOS ANGELES COUNTIES...VENTURA
COUNTY VALLEYS AND THE SANTA CLARITA VALLEY...
...FIRE WEATHER WATCH REMAINS IN EFFECT SATURDAY EVENING THROUGH
MONDAY EVENING FOR GUSTY NORTHEAST WINDS AND VERY LOW HUMIDITIES
FOR THE SAN FERNANDO AND SAN GABRIEL VALLEYS...
.STRONG HIGH PRESSURE ALOFT WILL BUILD OVER THE AREA THIS WEEKEND
BRINGING VERY HOT AND DRY CONDITIONS. AFTERNOON TEMPERATURES ON
SUNDAY AND MONDAY WILL BE IN EXCESS OF 100 DEGREES ACROSS INLAND
AREAS. THERE WILL BE EXTENDED PERIODS OF SINGLE DIGIT RELATIVE
HUMIDITY ACROSS THE MOUNTAINS AND VALLEYS IN THE AFTERNOON AND
EVENING HOURS...WITH VERY POOR OVERNIGHT RECOVERIES.
ALSO THIS WEEKEND...THERE WILL BE AN OFFSHORE FLOW ACROSS THE
AREA. THIS WILL PRODUCE SOME GUSTY NORTHEAST WINDS THROUGH AND
BELOW PASSES AND CANYONS OF VENTURA AND LOS ANGELES COUNTIES. THE
STRONGEST PERIOD OF WIND IS EXPECTED SATURDAY EVENING THROUGH
MONDAY. SUSTAINED WINDS OF 15 TO 25 MPH ARE POSSIBLE ALONG WITH
GUSTS TO AROUND 35 MPH IN THE WIND PRONE AREAS...ESPECIALLY
DURING THE NIGHT AND MORNING HOURS.
THE EXPECTED COMBINATION OF VERY HOT TEMPERATURES...VERY LOW
RELATIVE HUMIDITY...GUSTY NORTHEAST WINDS AND CRITICALLY DRY FUELS
HAS PROMPTED THE ISSUANCE OF A RED FLAG WARNING FOR THE MOUNTAINS
OF VENTURA AND LOS ANGELES COUNTIES...THE SANTA CLARITA VALLEY AND
THE VENTURA COUNTY VALLEYS.
FOR THE SAN FERNANDO AND SAN GABRIEL VALLEYS...CONFIDENCE IS NOT
AS HIGH WITH REGARD TO REACHING THE REQUIRED DURATION OF RED FLAG
CONDITIONS. SO...THE SAN FERNANDO AND SAN GABRIEL VALLEYS WILL
REMAIN IN A FIRE WEATHER WATCH.
CAZ253-254-252300-
/O.UPG.KLOX.FW.A.0002.100926T0300Z-100928T0400Z/
/O.NEW.KLOX.FW.W.0002.100926T0300Z-100928T0400Z/
VENTURA COUNTY MOUNTAINS / LOS PADRES NATIONAL FOREST-
LOS ANGELES COUNTY MOUNTAINS / ANGELES NATIONAL FOREST-
910 AM PDT SAT SEP 25 2010
...RED FLAG WARNING IN EFFECT FROM 8 PM THIS EVENING TO 9 PM PDT
MONDAY...
THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
RED FLAG WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO
9 PM PDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.
HOT AND VERY DRY CONDITIONS ARE EXPECTED ACROSS THE MOUNTAINS
THIS EVENING THROUGH MONDAY EVENING. AFTERNOON TEMPERATURES ARE
EXPECTED TO EXCEED 100 DEGREES ACROSS MANY AREAS. THERE WILL ALSO
BE EXTENDED PERIODS OF SINGLE DIGIT RELATIVE HUMIDITY WITH POOR
OVERNIGHT RECOVERIES.
IN ADDITION...GUSTY NORTHEAST WINDS ARE EXPECTED ACROSS THE
MOUNTAINS. AT THIS TIME...SUSTAINED WINDS OF 15 TO 25 MPH WITH
GUSTS TO 35 MPH ARE EXPECTED FROM THIS EVENING THROUGH MONDAY
EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXTREME FIRE BEHAVIOR. PLEASE ADVISE THE APPROPRIATE
OFFICIALS OR FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING.
