Red Flag Warning 1, NWS San Francisco Bay Area, CA

141 
WWUS86 KMTR 101015
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
315 AM PDT SUN JUN 10 2012

.LARGE PRESSURE DIFFERENCES BETWEEN HIGH PRESSURE OVER OREGON AND
NEVADA AND LOW PRESSURE ALONG THE CENTRAL CALIFORNIA COAST WERE
GENERATING GUSTY OFFSHORE WINDS IN THE HILLS OF THE NORTH AND
EAST BAY EARLY ON SUNDAY MORNING. WINDS GUSTS OF BETWEEN 20 AND 40
MPH HAVE BEEN COMMON OVERNIGHT. IN ADDITION... RELATIVE HUMIDITY
VALUES WERE REMAINING STEADY OR EVEN FALLING OVERNIGHT AND
REMAINED BELOW 30 PERCENT AT MANY HIGHER ELEVATION LOCATIONS.
THESE CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE THROUGH MUCH
OF SUNDAY MORNING UNTIL WINDS DECREASE AROUND MIDDAY. ALTHOUGH
WINDS WILL DECREASE...WARM AND VERY DRY CONDITIONS WILL CONTINUE
IN THE HILLS THROUGH TUESDAY.

CAZ507-511-101800-
/O.CON.KMTR.FW.W.0001.000000T0000Z-120610T1800Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
315 AM PDT SUN JUN 10 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE NORTH BAY
MOUNTAINS AND EAST BAY HILLS ABOVE 1000 FEET...

* AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 
  511 EAST BAY HILLS AND DIABLO RANGE.

* TIMING: WINDS WILL REMAIN LOCALLY STRONG AND GUSTY THROUGH MUCH
  OF SUNDAY MORNING. WINDS WILL GRADUALLY DECREASE FROM LATE
  SUNDAY MORNING THROUGH THE AFTERNOON HOURS.

* WIND: NORTH TO NORTHEAST WINDS FROM 15 TO 25 MPH WITH GUSTS UP
  TO 40 MPH OVER THE RIDGES AND PEAKS. 

* HUMIDITY: VERY POOR HUMIDITY RECOVERIES OVERNIGHT. RELATIVE 
  HUMIDITY VALUES HAVE REMAINED BELOW 40 PERCENT OVERNIGHT AND 
  WILL DROP LOCALLY INTO THE SINGLE DIGITS ON SUNDAY.

* IMPACTS: THE COMBINATION OF LOW RELATIVE HUMIDITIES AND GUSTY
  OFFSHORE WINDS WILL CREATE CRITICAL FIRE WEATHER
  CONDITIONS...ESPECIALLY AT ELEVATIONS BETWEEN 1000 AND 2000
  FEET WHERE FUELS ARE DRY.

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.

&&

$$


HTTP://WEATHER.GOV/SANFRANCISCO

559 
WWUS86 KMTR 101613
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
913 AM PDT SUN JUN 10 2012

CAZ507-511-111500-
/O.EXT.KMTR.FW.W.0001.000000T0000Z-120611T1500Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
913 AM PDT SUN JUN 10 2012

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 AM PDT MONDAY FOR GUSTY
WINDS AND LOW HUMIDITY FOR THE NORTH BAY MOUNTAINS AND EAST BAY
HILLS ABOVE 1000 FEET...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 8 AM PDT MONDAY. 

* AFFECTED AREA: FIRE ZONE 507 NORTH BAY MOUNTAINS...FIRE ZONE 
  511 EAST BAY HILLS AND DIABLO RANGE.

* TIMING: WINDS WILL REMAIN LOCALLY GUSTY THROUGH MUCH OF SUNDAY
  INTO EARLY MONDAY MORNING. WINDS WILL BEGIN TO SLOWLY SUBSIDE
  THIS EVENING INTO MONDAY MORNING.

* WIND: NORTH TO NORTHEAST WINDS BETWEEN 15 AND 20 MPH...WITH
  OCCASIONAL GUSTS TO 30 MPH.

* HUMIDITY: RELATIVE HUMIDITIES WILL LIKELY FALL INTO THE SINGLE
  DIGITS TO LOW TEENS THIS AFTERNOON. POOR HUMIDITY RECOVERIES
  WILL ALSO BE OBSERVED OVERNIGHT INTO EARLY MONDAY MORNING.

* IMPACTS: THE COMBINATION OF LOW RELATIVE HUMIDITIES AND GUSTY
  OFFSHORE WINDS WILL CREATE CRITICAL FIRE WEATHER CONDITIONS...
  ESPECIALLY AT ELEVATIONS BETWEEN 1000 AND 2000 FEET WHERE FUELS
  ARE DRY.

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.

&&

$$


HTTP://WEATHER.GOV/SANFRANCISCO

103 
WWUS86 KMTR 111501
RFWMTR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
801 AM PDT MON JUN 11 2012


CAZ507-511-111615-
/O.CAN.KMTR.FW.W.0001.000000T0000Z-120611T1500Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
801 AM PDT MON JUN 11 2012

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY
FOR THE NORTH BAY AND EAST BAY HILLS...

THE NATIONAL WEATHER SERVICE THE SAN FRANCISCO BAY AREA HAS
CANCELLED THE RED FLAG WARNING. 

GUSTY NORTH WINDS HAVE DECREASED IN MOST AREAS AND SHOULD BECOME
LIGHT AND VARIABLE THEN TURN ONSHORE LATE TODAY. LOW HUMIDITY WILL
CONTINUE TODAY BUT BETTER RECOVERY IS EXPECTED TONIGHT. WITH WINDS
DECREASING...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE.


$$


HTTP://WEATHER.GOV/SANFRANCISCO