...RED FLAG WARNING IN EFFECT TONIGHT THROUGH EARLY THURSDAY
MORNING FOR THE NORTH AND EAST BAY HILLS DUE TO GUSTY OFFSHORE
WINDS AND LOW RELATIVE HUMIDITY VALUES...
.DRY NORTHERLY WINDS WILL DEVELOP TONIGHT ACROSS THE NORTH AND
EAST BAY HILLS. THE STRONGEST WINDS WILL OCCUR AFTER MIDNIGHT
TONIGHT THROUGH ABOUT MIDDAY WEDNESDAY. HOWEVER DRY OFFSHORE
WINDS WITH VERY LOW HUMIDITY WILL CONTINUE AGAIN WEDNESDAY NIGHT
THROUGH SUNRISE THURSDAY...ESPECIALLY IN THE EAST BAY HILLS.
CAZ507-261315-
/O.CON.KMTR.FW.W.0003.111026T0100Z-111027T1300Z/
NORTH BAY MOUNTAINS-
320 PM PDT TUE OCT 25 2011
...RED FLAG WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 AM PDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE
NORTH BAY HILLS ABOVE 1000 FEET IN MARIN/SONOMA AND NAPA
COUNTIES...
A RED FLAG WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 AM PDT THURSDAY.
* AFFECTED AREA...HILLS ABOVE 1000 FEET IN MARIN/SONOMA AND NAPA
COUNTIES. THE AREA OF STRONGEST WINDS WILL BE THE HILLS OF
NORTHERN AND EASTERN NAPA COUNTY AS WELL AS AROUND MOUNT ST
HELENA.
* WINDS...NORTH TO NORTHEAST WINDS SUSTAINED 15 TO 25 MPH WITH
FREQUENT GUSTS 35 TO 40 MPH. STRONGEST WINDS WILL OCCUR LATE
TONIGHT THROUGH MIDDAY WEDNESDAY.
* RELATIVE HUMIDITY...DROPPING BELOW 30 PERCENT TONIGHT AND THEN
STAYING BETWEEN 15 AND 25 PERCENT WEDNESDAY THROUGH THURSDAY
WITH NO NIGHT TIME RECOVERY.
* IMPACTS...ANY IGNITIONS DURING THE PERIOD OF STRONGEST WINDS
COULD LEAD TO NEW FIRE STARTS THAT WILL BE DIFFICULT TO
SUPPRESS WITH RAPID RATES OF SPREAD.
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 EXPLOSIVE FIRE GROWTH POTENTIAL.
&&
$$
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
320 PM PDT TUE OCT 25 2011
...RED FLAG WARNING IN EFFECT TONIGHT THROUGH EARLY THURSDAY
MORNING FOR THE NORTH AND EAST BAY HILLS DUE TO GUSTY OFFSHORE
WINDS AND LOW RELATIVE HUMIDITY VALUES...
.DRY NORTHERLY WINDS WILL DEVELOP TONIGHT ACROSS THE NORTH AND
EAST BAY HILLS. THE STRONGEST WINDS WILL OCCUR AFTER MIDNIGHT
TONIGHT THROUGH ABOUT MIDDAY WEDNESDAY. HOWEVER DRY OFFSHORE
WINDS WITH VERY LOW HUMIDITY WILL CONTINUE AGAIN WEDNESDAY NIGHT
THROUGH SUNRISE THURSDAY...ESPECIALLY IN THE EAST BAY HILLS.
CAZ511-261315-
/O.CON.KMTR.FW.W.0003.111026T0500Z-111027T1300Z/
EAST BAY HILLS AND DIABLO RANGE-
320 PM PDT TUE OCT 25 2011
...RED FLAG WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
6 AM PDT THURSDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST
BAY HILLS AND DIABLO RANGE ABOVE 1000 FEET IN ELEVATION...
A RED FLAG WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
6 AM PDT THURSDAY.
* AFFECTED AREA...THE EAST BAY HILLS OF ALAMEDA AND CONTRA COSTA
COUNTY AS WELL AS THE DIABLO RANGE OF SANTA CLARA COUNTY. THE
STRONGEST WINDS WILL OCCUR LATE TONIGHT THROUGH MIDDAY
WEDNESDAY ACROSS THE EAST BAY HILLS.
* WINDS...NORTH TO NORTHEAST WINDS SUSTAINED 15 TO 25 MPH WITH
FREQUENT GUSTS 35 TO 40 MPH. STRONGEST WINDS WILL OCCUR LATE
TONIGHT THROUGH MIDDAY WEDNESDAY.
* RELATIVE HUMIDITY...BETWEEN 30 AND 45 PERCENT THIS EVENING THEN
LOWERING TO AROUND 30 PERCENT EARLY WEDNESDAY. RH VALUES STAYING
STEADY BETWEEN 15 AND 30 PERCENT WEDNESDAY THROUGH THURSDAY WITH
NO NIGHT TIME RECOVERY FORECAST.
* IMPACTS...ANY IGNITIONS DURING THE PERIOD OF STRONGEST WINDS
COULD LEAD TO NEW FIRE STARTS THAT WILL BE DIFFICULT TO
SUPPRESS WITH RAPID RATES OF SPREAD.
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 EXPLOSIVE FIRE GROWTH POTENTIAL.
&&
$$
FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SANFRANCISCO (ALL LOWER CASE)
URGENT - FIRE WEATHER MESSAGESource: http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=mtr&wwa=red%20flag%20warning
NATIONAL WEATHER SERVICE SACRAMENTO CA
230 PM PDT TUE OCT 25 2011
CAZ264-261130-
/O.UPG.KSTO.FW.A.0002.111026T0700Z-111027T1400Z/
/O.NEW.KSTO.FW.W.0003.111026T0600Z-111027T1400Z/
LAKE COUNTY PORTION OF LAKE-NAPA-SONOMA UNIT-
230 PM PDT TUE OCT 25 2011
...RED FLAG WARNING IN EFFECT FROM 11 PM THIS EVENING TO 7 AM PDT
THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 264...
THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 7 AM PDT
THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.
* AFFECTED AREA: IN CALIFORNIA...FIRE ZONE 264 LAKE COUNTY
PORTION OF LAKE-NAPA-SONOMA UNIT.
* WIND: SUSTAINED NORTH TO NORTHEAST WINDS 5 TO 10 MPH IN VALLEYS
AND 15 TO 25 MPH OVER RIDGES ALONG WITH LOCAL GUSTS TO 35 MPH
ARE EXPECTED TONIGHT THROUGH WEDNESDAY NIGHT. WINDS ARE EXPECTED TO
DECREASE BY THURSDAY MORNING.
* HUMIDITY: POOR HUMIDITY RECOVERY OF 25 TO 35 PERCENT IS EXPECTED
OVER RIDGES AND AT MID SLOPES TONIGHT AND WEDNESDAY NIGHT.
HUMIDITY RECOVERY WILL BE BETTER IN VALLEYS AND WIND SHELTERED
AREAS. HUMIDITY WILL DROP INTO THE TEENS WEDNESDAY AFTERNOON AS
WINDS BEGIN TO DROP OFF.
* IMPACTS: THE COMBINATION OF LOW HUMIDITY...DRY AND GUSTY
NORTHEAST WINDS AND AREAS DRY LARGER FUELS WILL CREATE
CONDITIONS CONDUCIVE FOR INCREASED FIRE ACTIVITY AT THE HIGHER
ELEVATIONS. THERE IS A LOT OF GREEN GRASS AT THE LOWER
ELEVATIONS...SO THE CONCERN IS NOT AS GREAT IN THE VALLEYS.
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 EXPLOSIVE FIRE GROWTH POTENTIAL.
--
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