Red Flag Warning 4, NWS San Francisco Bay Area, CA

000 
WWUS86 KMTR 202100
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
200 PM PDT FRI OCT 20 2006

...RED FLAG WARNING FOR THE NORTH BAY COUNTIES OF MARIN...SONOMA
AND NAPA FROM 6 PM TONIGHT UNTIL NOON SATURDAY FOR MODERATE OFFSHORE
WINDS AND LOW RELATIVE HUMIDITY VALUES...

.NORTHEAST WINDS ALONG WITH A NIGHT OF POOR RELATIVE HUMIDITY
RECOVERY WILL DEVELOP TONIGHT IN THE NORTH BAY HILLS AND CONTINUE
UNTIL MIDDAY SATURDAY. THEREFORE THE RED FLAG WARNING HAS BEEN
EXTENDED TO INCLUDE MARIN AND SONOMA COUNTIES...ESSENTIALLY THE
ENTIRE NORTH BAY. EARLY THIS AFTERNOON THE NORTHEAST WINDS ARE
ALREADY STARTING TO INCREASE IN THE HILLS AS HUMIDITY VALUES DROP.
FUEL MOISTURE LEVELS ARE NEAR CRITICAL LEVELS. THE RED FLAG
WARNING WILL BEGIN AT 6 PM THIS EVENING.

CAZ205-210500-
/O.EXB.KMTR.FW.W.0004.061021T0100Z-061021T1900Z/
SONOMA AND MARIN COUNTIES-
200 PM PDT FRI OCT 20 2006

...RED FLAG WARNING IN EFFECT FROM 6 PM THIS EVENING TO 12 PM PDT
SATURDAY FOR MARIN AND SONOMA COUNTY...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 12 PM
PDT SATURDAY. 

MODERATELY STRONG AND GUSTY NORTHEAST WINDS WILL DEVELOP IN THE HILLS
TONIGHT AND THEN CONTINUE INTO SATURDAY MORNING. EXPECT NORTHEAST
WINDS OF 10 TO 20 MPH WITH GUSTS TO 35 MPH. WINDS ARE LIKELY TO BE
AT THEIR STRONGEST AROUND SUNRISE ON SATURDAY.

IN ADDITION THESE WINDS WILL COINCIDE WITH A NIGHT OF VERY POOR
RELATIVE HUMIDITY RECOVERIES...GENERALLY LESS THAN 30%...WITH
CONTINUED LOW RELATIVE HUMIDITIES DURING THE DAY ON SATURDAY.

WINDS ARE EXPECTED TO SUBSIDE BY SATURDAY AFTERNOON.

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.

$$

CAZ265-210500-
/O.EXT.KMTR.FW.W.0004.061021T0100Z-061021T1900Z/
NAPA COUNTY-
200 PM PDT FRI OCT 20 2006

...RED FLAG WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 12 PM
PDT SATURDAY FOR NAPA COUNTY...

THE RED FLAG WARNING IS NOW IN EFFECT FROM 6 PM THIS EVENING TO
12 PM PDT SATURDAY. 

MODERATELY STRONG AND GUSTY NORTHEAST WINDS WILL DEVELOP IN THE
HILLS OF NAPA COUNTY TONIGHT AND THEN CONTINUE INTO SATURDAY
MORNING. EXPECT NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 35
MPH. WINDS ARE LIKELY TO BE AT THEIR STRONGEST AROUND SUNRISE ON
SATURDAY.

THESE WINDS ARE PROJECTED TO COINCIDE WITH A NIGHT OF VERY POOR
RELATIVE HUMIDITY RECOVERIES...GENERALLY LESS THAN 30%...WITH 
CONTINUED LOW RELATIVE HUMIDITY DURING THE DAY ON SATURDAY.

WINDS ARE EXPECTED TO SUBSIDE BY SATURDAY AFTERNOON.

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.

$$

R WALBRUN

000 
WWUS86 KMTR 210328
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
828 PM PDT FRI OCT 20 2006

...RED FLAG WARNING FOR THE NORTH BAY COUNTIES OF MARIN...SONOMA
AND NAPA UNTIL NOON SATURDAY FOR MODERATE OFFSHORE WINDS AND LOW
RELATIVE HUMIDITY VALUES...

.DRY NORTHEAST WINDS ALONG WITH A NIGHT OF POOR RELATIVE HUMIDITY
WILL OCCUR IN THE NORTH BAY HILLS TONIGHT. THE STRONGEST WINDS
WILL CONTINUE UNTIL AROUND MIDDAY WITH SINGLE DIGIT RELATIVE
HUMIDITY VALUES.

CAZ205-265-211400-
/O.CON.KMTR.FW.W.0004.000000T0000Z-061021T1900Z/
SONOMA AND MARIN COUNTIES-NAPA COUNTY-
828 PM PDT FRI OCT 20 2006

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 12 PM PDT SATURDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 12 NOON PDT SATURDAY.

MODERATELY STRONG AND GUSTY NORTHEAST WINDS WILL DEVELOP IN THE
HILLS OF THE NORTH BAY TONIGHT AND THEN CONTINUE INTO SATURDAY
MORNING. EXPECT NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 35
MPH. WINDS ARE LIKELY TO BE STRONGEST AROUND SUNRISE SATURDAY.

THESE WINDS WILL COINCIDE WITH A NIGHT OF VERY POOR RELATIVE HUMIDITY
RECOVERIES...GENERALLY BETWEEN 10 AND 25%...WITH CONTINUED LOW
RELATIVE HUMIDITY DURING THE DAY ON SATURDAY.

WINDS ARE EXPECTED TO SUBSIDE BY SATURDAY AFTERNOON.

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.

$$
R WALBRUN

000 
WWUS86 KMTR 211057
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
357 AM PDT SAT OCT 21 2006

...RED FLAG WARNING FOR THE NORTH BAY COUNTIES OF MARIN...SONOMA
AND NAPA UNTIL NOON TODAY FOR MODERATE OFFSHORE WINDS AND LOW
RELATIVE HUMIDITY VALUES...

.DRY NORTHEAST WINDS ALONG WITH A NIGHT OF POOR RELATIVE HUMIDITY
WILL OCCUR IN THE NORTH BAY HILLS THIS MORNING. THE STRONGEST
WINDS WILL CONTINUE UNTIL AROUND MIDDAY WITH SINGLE DIGIT RELATIVE
HUMIDITY VALUES.

CAZ205-265-211900-
/O.CON.KMTR.FW.W.0004.000000T0000Z-061021T1900Z/
SONOMA AND MARIN COUNTIES-NAPA COUNTY-
357 AM PDT SAT OCT 21 2006

...RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY. 

GUSTY NORTHEAST WINDS WILL CONTINUE IN THE HILLS OF THE NORTH BAY
THIS MORNING. EXPECT NORTHEAST WINDS OF 15 TO 30 MPH WITH GUSTS TO
35 MPH. WINDS ARE LIKELY TO BE STRONGEST AROUND SUNRISE.

THESE WINDS WILL COINCIDE WITH VERY POOR RELATIVE HUMIDITY
RECOVERIES LAST NIGHT...GENERALLY BETWEEN 10 AND 25%...WITH CONTINUED
LOW RELATIVE HUMIDITY DURING THE DAY.

WINDS ARE EXPECTED TO SUBSIDE BY SATURDAY AFTERNOON.

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.

$$

STROBIN

000 
WWUS86 KMTR 211439
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
739 AM PDT SAT OCT 21 2006

...RED FLAG WARNING UNTIL NOON TODAY FOR THE NORTH BAY COUNTIES OF
SONOMA...NAPA AND FOR THE EAST BAY HILLS FOR MODERATE OFFSHORE
WINDS AND LOW RELATIVE HUMIDITY VALUES...

.AT 7 AM PDT...WINDS IN THE HILLS OF THE NORTH AND EAST BAY WERE
IN THE 20 TO 40 MPH RANGE. RELATIVE HUMIDITIES WERE AROUND 20 TO
30 PERCENT. EXPECT WINDY AND DRY CONDITIONS TO PERSIST UNTIL MIDDAY.

CAZ207-211900-
/O.EXA.KMTR.FW.W.0004.000000T0000Z-061021T1900Z/
THE EAST BAY HILLS-
739 AM PDT SAT OCT 21 2006

...RED FLAG WARNING IN EFFECT UNTIL NOON PDT TODAY...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A RED
FLAG WARNING FOR THE EAST BAY HILLS...WHICH IS IN EFFECT UNTIL NOON
PDT TODAY.

GUSTY NORTHEAST WINDS WILL CONTINUE IN THE HILLS OF THE NORTH BAY
THIS MORNING. EXPECT NORTHEAST WINDS OF 15 TO 30 MPH WITH GUSTS
TO 40 MPH. WINDS ARE LIKELY TO BE STRONGEST FROM SUNRISE UNTIL MID
MORNING AND THEN SLOWLY DIMINISH BY NOON SATURDAY.

THESE WINDS COINCIDE WITH VERY POOR RELATIVE HUMIDITY RECOVERIES
LAST NIGHT...AND CONTINUED DRY CONDITIONS TODAY.

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.

$$

CAZ205-265-211900-
/O.CON.KMTR.FW.W.0004.000000T0000Z-061021T1900Z/
SONOMA AND MARIN COUNTIES-NAPA COUNTY-
739 AM PDT SAT OCT 21 2006

...RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY FOR THE
NORTH BAY COUNTIES OF NAPA...SONOMA AND MARIN...

GUSTY NORTHEAST WINDS WILL CONTINUE IN THE HILLS OF THE NORTH BAY
THIS MORNING. EXPECT NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO
35 MPH. WINDS ARE LIKELY TO BE STRONGEST AROUND SUNRISE AND SLOWLY
DIMINISH THROUGH THE MORNING HOURS.

THESE WINDS COINCIDE WITH VERY POOR RELATIVE HUMIDITY RECOVERIES
LAST NIGHT...GENERALLY BETWEEN 15 AND 25%...AND WITH CONTINUED LOW
RELATIVE HUMIDITY VALUES TODAY.

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.

$$

DYKEMA

000 
WWUS86 KMTR 211855
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1155 AM PDT SAT OCT 21 2006

...RED FLAG WARNING EXTENDED UNTIL 3 PM FOR THE EAST BAY HILLS...
...RED FLAG WARNING FOR THE NORTH BAY COUNTIES WILL BE ALLOWED TO
EXPIRE AT NOON PDT...

.AT 1130 AM PDT...WINDS IN THE HILLS OF THE NORTH BAY HAD EASED
CONSIDERABLY. HOWEVER...WINDS IN THE EAST BAY HILLS CONTINUED LOCALLY
STRONG AND GUSTY. WINDS SHOULD DIMINISH IN ALL AREAS BY MID
AFTERNOON.

CAZ205-265-212000-
/O.EXP.KMTR.FW.W.0004.000000T0000Z-061021T1900Z/
SONOMA AND MARIN COUNTIES-NAPA COUNTY-
1155 AM PDT SAT OCT 21 2006

...RED FLAG WARNING WILL EXPIRE AT NOON PDT TODAY...

WINDS IN THE NORTH BAY HAVE DIMINISHED CONSIDERABLY SINCE EARLIER
THIS MORNING. BY 1130 AM PDT...WINDS WERE GENERALLY LESS THAN 15 MPH
ACROSS SONOMA...NAPA AND MARIN COUNTIES. THEREFORE...THE RED FLAG
WARNING WILL BE ALLOWED TO EXPIRE AT NOON.

POOR RELATIVE HUMIDITY RECOVERIES ARE EXPECTED SATURDAY
NIGHT...BUT WINDS SHOULD BE CONSIDERABLY LIGHTER THAN WHAT WAS
OBSERVED ON FRIDAY NIGHT AND SATURDAY MORNING.

$$

CAZ207-212200-
/O.EXT.KMTR.FW.W.0004.000000T0000Z-061021T2200Z/
THE EAST BAY HILLS-
1155 AM PDT SAT OCT 21 2006

...RED FLAG WARNING NOW IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON FOR
THE EAST BAY HILLS...

THE RED FLAG WARNING FOR THE EAST BAY HILLS HAS BEEN EXTENDED UNTIL 3
PM PDT THIS AFTERNOON.

GUSTY NORTHEAST WINDS WILL CONTINUE IN THE HILLS OF THE EAST BAY
THROUGH MID AFTERNOON. EXPECT NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS
TO 35 MPH. WINDS WILL DIMINISH BY MID AFTERNOON.

THESE WINDS COINCIDE WITH CONTINUED DRY CONDITIONS TODAY. RELATIVE
HUMIDITY VALUES WERE AROUND 20 PERCENT LATE SATURDAY MORNING AND
WILL DROP INTO THE MID TEENS BY EARLY AFTERNOON.

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.

$$

DYKEMA

000 
WWUS86 KMTR 212150
RFWMTR

RED FLAG WARNING
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
250 PM PDT SAT OCT 21 2006

...WINDS HAVE DECREASED IN THE EAST BAY HILLS...

.BY 230 PM PDT...WINDS IN THE EAST BAY HILLS HAD DIMINISHED TO 15
MPH OR LESS. WINDS ARE EXPECTED TO CONTINUE TO DECREASE THROUGH
THE AFTERNOON AND EVENING. 

CAZ207-212300-
/O.EXP.KMTR.FW.W.0004.000000T0000Z-061021T2200Z/
THE EAST BAY HILLS-
250 PM PDT SAT OCT 21 2006

...RED FLAG WARNING WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...

WINDS IN THE EAST BAY HILLS HAVE BEEN DECREASING SINCE MIDDAY AND
WILL CONTINUE TO DECREASE THROUGH LATE AFTERNOON AND EVENING.
OFFSHORE WINDS WILL BE LIGHT OVERNIGHT AND TURN LIGHT ONSHORE BY
SUNDAY AFTERNOON. SLIGHTLY COOLER WEATHER IS EXPECTED DURING THE FIRST
FEW DAYS OF NEXT WEEK.

MODERATE OFFSHORE WINDS AND WARMER AND DRIER WEATHER ARE THEN
EXPECTED BEGINNING WEDNESDAY NIGHT AND CONTINUING THROUGH FRIDAY.

$$

DYKEMA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
357 AM PDT FRI OCT 20 2006

.DISCUSSION...OUR WARM AND DRY OCTOBER WEATHER CONTINUES THROUGH THE
WEEKEND. SATL IMAGERY SHOWS CLEAR SKIES OVER THE DISTRICT WITH
TEMPS FROM THE 40S IN THE VALLEYS TO NEAR 70 IN THE HILLS.

HIGH TEMPS SHOULD BE EVEN WARMER TODAY WITH AN OFFSHORE FLOW AND
WARMER 850 MB TEMPS. A WEAK UPPER LOW NEAR 30/135 IS FCST TO DRIFT NE
TO THE COAST BY LATE SUNDAY. THIS LOW SHOULD BRING SOME COOLING TO
THE DISTRICT SUNDAY AFTN...HOWEVER TEMPS WILL REMAIN ABOVE NORMAL.

THE GFS/EURO BRING A SHORTWAVE FROM THE GULF OF ALASKA AND DEEPENS
IT OVER THE PACIFIC NW BY LATE TUESDAY. THIS SHOULD BRING ADDITIONAL
COOLING TO THE DISTRICT. THE EURO AND GFS DIVERGE BY MID-WEEK AS THE
EURO DEVELOPS A CUTOFF LOW IN THE ROCKIES WITH COOLER 850 MB TEMPS.
HOWEVER...THE GFS DROPS THIS SHORTWAVE MUCH FURTHER EAST...CUTTING
IT OFF IN THE NORTHERN PLAINS. THE GFS SCENARIO WOULD KEEP HEIGHTS
MUCH HIGHER...AS WELL AS WARMER 850 MB TEMPS AND STRONGER OFFSHORE
FLOW. EITHER SOLUTION WILL KEEP THE DISTRICT DRY...THE ONLY QUESTION
WILL BE THE TEMPS. FOR KNOW...HAVE FOLLOWED THE EURO AND COOLED TEMPS
THROUGH THE END OF NEXT WEEK.

&&

.PREVIOUS AVIATION...VFR TONIGHT AND FRIDAY. SURFACE WINDS WILL BE
MAINLY LIGHT.

&&

.FIRE WEATHER...WILL BE UPGRADING THE FIRE WEATHER WATCH FOR THE
NORTHERN MOUNTAINS TO A RED FLAG WARNING FOR TONIGHT THRU SATURDAY
MORNING (SEE SFORFWMTR OR WMO HEADER WWUS86 KMTR). WINDS OVER THE
HILLS IN NAPA COUNTY WILL INCREASE TO 20-30 MPH...AND WITH VERY POOR
RH RECOVERIES CONDITIONS CRITICAL FIRE WEATHER CONDITIONS WILL
DEVELOP.

.MTR...WATCHES/WARNINGS/ADVISORIES...
             TDY...SCA...POINT ARENA TO PIGEON POINT 20-60 NM.
             TNGT...RED FLAG WARNING TONIGHT THROUGH SATURDAY MORNING
                    FOR THE MOUNTAINS IN NAPA COUNTY.

PUBLIC FORECAST: STROBIN
AVIATION/MARINE: W PI
FIRE WEATHER:    STROBIN

NWS ON THE WEB AT WEATHER.GOV/SANFRANCISCO

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
530 PM PDT THU OCT 19 2006

CAZ065-201400-
NAPA COUNTY-
530 PM PDT THU OCT 19 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE HILLS OF NAPA COUNTY.

.DAY ONE...THURSDAY NIGHT

NO WIDESPREAD HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A FIRE WEATHER WATCH IS IN EFFECT FROM 9 PM FRIDAY NIGHT THROUGH
NOON ON SATURDAY (SEE SFORFWMTR FOR DETAILS).  MODERATELY STRONG AND
GUSTY NORTHEAST WINDS ARE EXPECTED TO DEVELOP IN THE HILLS OF NAPA
COUNTY FRIDAY NIGHT AND THEN CONTINUE INTO SATURDAY MORNING.
NORTHEAST WINDS OF 15 TO 25 MPH WITH POSSIBLE GUSTS TO 35 MPH ARE
PROJECTED TO THEN OCCUR.  WINDS ARE LIKELY TO BE AT THEIR STRONGEST
AROUND SUNRISE ON SATURDAY.  THESE WINDS ARE EXPECTED TO COINCIDE
WITH A NIGHT OF VERY POOR RH RECOVERIES...GENERALLY LESS THAN 30%...
WITH CONTINUED VERY LOW RH DURING THE DAY ON SATURDAY.  PERSONS
PLANNING OUTDOOR ACTIVITIES IN THE FIRE WEATHER WATCH AREA SHOULD BE
VERY MINDFUL OF THE EXTREME FIRE CONDITIONS.

.SPOTTER INFORMATION STATEMENT...WEATHER SPOTTERS ARE ENCOURAGED TO
REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING
PROCEDURES.

BLIER