Alert archive / Washington / Red Flag Warnings in 2012

Red Flag Warning 6, NWS Seattle, WA

October 4, 201210 counties in Washington

NWS Seattle, WA issued this red flag warning at Oct 4, 2012, 8:33 AM PDT for 10 counties in Washington. It took effect at Oct 4, 2012, 10:00 AM PDT. It was in force for 54 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 4, 2012, 8:33 AM PDT (15:33 UTC)
In effect from
Oct 4, 2012, 10:00 AM PDT
Expired
Oct 6, 2012, 4:00 PM PDT
In force
54 hr
Issued by
NWS Seattle, WA

Counties Clallam County, WA, Grays Harbor County, WA, Jefferson County, WA, King County, WA, Kitsap County, WA, Lewis County, WA, Mason County, WA, Pierce County, WA, Skamania County, WA, Thurston County, WA

The radar

The Langley Hill radar (KLGX), 97 km from the middle of the area, began a volume at 15:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Quillayute State, WA (KUIL), launched 12:00Z, 3.6 hours before the alert went out and 150 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Quillayute State, WA at 12:00Z on 2012-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Quillayute State, WA at 12:00Z on 2012-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2751 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

024 
WWUS86 KSEW 041533
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
833 AM PDT THU OCT 4 2012

...DRY EAST WIND EVENT THROUGH SUNDAY MORNING...

.A THERMAL PRESSURE TROUGH NEAR THE COAST AND COOL HIGH PRESSURE
EAST OF THE CASCADES WILL LEAD TO AN INCREASE IN EAST WIND TODAY
AND FRIDAY THROUGH THE CASCADE GAPS AND EAST-WIND PRONE PORTIONS
OF THE OLYMPIC PENINSULA. THIS PATTERN WILL PERSIST THROUGH SUNDAY
MORNING. MANY LOCATIONS WILL ALSO EXPERIENCE EXTREMELY POOR
NIGHTTIME HUMIDITY RECOVERY. EAST WIND WILL DIE OFF ON SUNDAY
AFTERNOON.

WAZ657-659-050000-
/O.NEW.KSEW.FW.W.0006.121004T1700Z-121006T2300Z/
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
833 AM PDT THU OCT 4 2012

...RED FLAG WARNING IN EFFECT UNTIL 4 PM PDT SATURDAY FOR DRY EAST
WIND FOR FIRE WEATHER ZONES 657 AND 659...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR DRY EAST WIND...WHICH IS IN EFFECT UNTIL 4 PM PDT
SATURDAY.

* AFFECTED AREA...WEST SLOPES OF THE CENTRAL CASCADES AND ADJACENT
  FOOTHILLS...INCLUDING LOCATIONS WEST OF STEVENS...SNOQUALMIE...
  STAMPEDE AND WHITE PASSES...AS WELL AS NORTH BEND AND ENUMCLAW.

* WINDS...EAST 5 TO 15 MPH. GUSTS OF 25 TO 35 MPH DEVELOPING
  TONIGHT WEST OF THE CASCADE PASSES.

* TIMING...EAST WIND INCREASING TONIGHT...PEAKING IN STRENGTH ON
  FRIDAY MORNING.

* RELATIVE HUMIDITY...MINIMUM RELATIVE HUMIDITY THIS AFTERNOON OF
  21-36 PERCENT. VERY POOR HUMIDITY RECOVERY TONIGHT...AS LOW AS
  35 PERCENT.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND
  CONTROL PROBLEMS.

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.

&&

$$

WAZ649-654-655-050000-
/O.NEW.KSEW.FW.W.0006.121004T1700Z-121005T0500Z/
NORTH AND CENTRAL COASTAL STRIP-
CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
833 AM PDT THU OCT 4 2012

...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR DRY
EAST WIND FOR FIRE WEATHER ZONES 649...654 AND 655...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR DRY EAST WIND...WHICH IS IN EFFECT UNTIL 10 PM PDT
THIS EVENING.

* AFFECTED AREA...CENTRAL AND SOUTH PUGET SOUND LOWLANDS AND THE
  COASTAL STRIP.

* WINDS...EAST TO NORTHEAST 7 TO 14 MPH. WIND GUSTS NEAR 20 MPH.

* TIMING...THE MOST CRITICAL COMBINATION OF WIND AND LOW HUMIDITY
  WILL TAKE PLACE THIS AFTERNOON.

* RELATIVE HUMIDITY...BOTTOMING OUT IN THE 22-30 PERCENT RANGE
  THIS AFTERNOON..

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY EAST TO
  NORTHEAST WIND. THIS COULD CAUSE RAPID RATES OF FIRE SPREAD AND
  CONTROL PROBLEMS.

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.

BE PARTICULARLY CAREFUL WITH BURNING MATERIAL TODAY. ROADSIDE
BRUSH FIRES WILL BE A PARTICULAR DANGER TODAY.

&&

$$

WAZ650-651-050000-
/O.NEW.KSEW.FW.W.0006.121004T1700Z-121006T2200Z/
NORTH COASTAL LOWLANDS-CENTRAL COASTAL LOWLANDS-
833 AM PDT THU OCT 4 2012

...RED FLAG WARNING IN EFFECT UNTIL 3 PM PDT SATURDAY FOR DRY EAST
WIND FOR FIRE WEATHER ZONES 650 AND 651...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR DRY EAST WIND...WHICH IS IN EFFECT UNTIL 3 PM PDT
SATURDAY.

* AFFECTED AREA...COASTAL LOWLANDS...PARTICULARLY HILLTOPS AND
  RIDGES EXPOSED TO EAST WIND

* WINDS...EAST 10 TO 15 MPH WITH GUSTS OF 20 MPH. RIDGES ON THE
  NORTHWEST OLYMPIC PENINSULA WILL EXPERIENCE WINDS OF 15 TO 20
  MPH WITH GUSTS OF 30 TO 35 MPH.

* TIMING...NOW THROUGH SATURDAY.

* RELATIVE HUMIDITY...AFTERNOON RELATIVE HUMIDITY OF 18-30
  PERCENT. RIDGES WILL EXPERIENCE VERY POOR HUMIDITY RECOVERIES AS
  LOW AS 30 PERCENT TONIGHT. 

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND
  CONTROL PROBLEMS.

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.

&&

$$

HANER

WEATHER.GOV/SEATTLE
4 follow-up statements
440 
WWUS86 KSEW 042249
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
349 PM PDT THU OCT 4 2012

...DRY EAST WIND EVENT THROUGH SUNDAY MORNING...

.A THERMAL PRESSURE TROUGH NEAR THE COAST AND COOL HIGH PRESSURE
EAST OF THE CASCADES WILL LEAD TO AN EAST WIND EVENT THAT WILL
PERSIST UNTIL SUNDAY MORNING. MANY LOCATIONS WILL ALSO EXPERIENCE
EXTREMELY POOR NIGHTTIME HUMIDITY RECOVERY. EAST WIND WILL EASE
SUBSTANTIALLY ON SUNDAY AFTERNOON.

WAZ657-659-051600-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2300Z/
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
349 PM PDT THU OCT 4 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 657 AND 659...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY. 

* AFFECTED AREA...WEST SLOPES OF THE CENTRAL CASCADES AND 
  ADJACENT FOOTHILLS...INCLUDING LOCATIONS WEST OF STEVENS... 
  SNOQUALMIE... STAMPEDE AND WHITE PASSES...AS WELL AS NORTH 
  BEND AND ENUMCLAW. 

* WINDS...EAST 5 TO 15 MPH. GUSTS OF 25 TO 35 MPH DEVELOPING 
  TONIGHT WEST OF THE CASCADE PASSES. 

* TIMING...EAST WIND INCREASING TONIGHT...PEAKING IN STRENGTH ON 
  FRIDAY MORNING. 

* RELATIVE HUMIDITY...MINIMUM RELATIVE HUMIDITY THIS AFTERNOON 
  OF 21-36 PERCENT. VERY POOR HUMIDITY RECOVERY TONIGHT...AS LOW 
  AS 35 PERCENT. 

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

WAZ649-654-655-050500-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121005T0500Z/
NORTH AND CENTRAL COASTAL STRIP-
CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
349 PM PDT THU OCT 4 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR DRY EAST WIND FOR FIRE WEATHER ZONES 649...654 AND
655...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

* AFFECTED AREA...CENTRAL AND SOUTH PUGET SOUND LOWLANDS AND THE 
  COASTAL STRIP. 

* WINDS...EAST TO NORTHEAST 7 TO 14 MPH. WIND GUSTS NEAR 20 MPH.

* TIMING...THE MOST CRITICAL COMBINATION OF WIND AND LOW 
  HUMIDITY WILL TAKE PLACE THIS AFTERNOON. 

* RELATIVE HUMIDITY...BOTTOMING OUT IN THE 22-32 PERCENT RANGE 
  THIS AFTERNOON.. 

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY EAST TO 
  NORTHEAST WIND. THIS COULD CAUSE RAPID RATES OF FIRE SPREAD 
  AND CONTROL PROBLEMS. 

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.

BE PARTICULARLY CAREFUL WITH BURNING MATERIAL TODAY. ROADSIDE
BRUSH FIRES WILL BE A PARTICULAR DANGER TODAY.

&&

$$

WAZ650-651-051600-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2200Z/
NORTH COASTAL LOWLANDS-CENTRAL COASTAL LOWLANDS-
349 PM PDT THU OCT 4 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 650 AND 651...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY. 

* AFFECTED AREA...COASTAL LOWLANDS...PARTICULARLY HILLTOPS AND 
  RIDGES EXPOSED TO EAST WIND 

* WINDS...EAST 10 TO 15 MPH WITH GUSTS OF 20 MPH. RIDGES ON THE 
  NORTHWEST OLYMPIC PENINSULA WILL EXPERIENCE WINDS OF 15 TO 20 
  MPH WITH GUSTS OF 30 TO 35 MPH. 

* TIMING...NOW THROUGH SATURDAY.

* RELATIVE HUMIDITY...AFTERNOON RELATIVE HUMIDITY OF 18-30 
  PERCENT. RIDGES WILL EXPERIENCE VERY POOR HUMIDITY RECOVERIES 
  AS LOW AS 30 PERCENT TONIGHT. 

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

HANER

WEATHER.GOV/SEATTLE
451 
WWUS86 KSEW 051532
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
832 AM PDT FRI OCT 5 2012

...DRY EAST WIND EVENT THROUGH SUNDAY MORNING...

.A THERMAL PRESSURE TROUGH NEAR THE COAST AND COOL HIGH PRESSURE
EAST OF THE CASCADES WILL LEAD TO AN EAST WIND EVENT THAT WILL
PERSIST UNTIL SUNDAY MORNING. MANY LOCATIONS WILL ALSO EXPERIENCE
EXTREMELY POOR NIGHTTIME HUMIDITY RECOVERY. EAST WIND WILL EASE
SUBSTANTIALLY ON SUNDAY AFTERNOON.

WAZ649-654-655-060000-
/O.NEW.KSEW.FW.W.0007.121005T1700Z-121006T0500Z/
NORTH AND CENTRAL COASTAL STRIP-
CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
832 AM PDT FRI OCT 5 2012

...RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR DRY
EAST WIND FOR FIRE WEATHER ZONES 649...654 AND 655...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR DRY EAST WIND...WHICH IS IN EFFECT UNTIL 10 PM PDT
THIS EVENING.

* AFFECTED AREA...CENTRAL AND SOUTH PUGET SOUND LOWLANDS AND THE
  COASTAL STRIP.

* WINDS...EAST TO NORTHEAST 7 TO 14 MPH. WIND GUSTS NEAR 20 MPH.

* TIMING...THE MOST CRITICAL COMBINATION OF WIND AND LOW HUMIDITY
  WILL TAKE PLACE THIS AFTERNOON.

* RELATIVE HUMIDITY...BOTTOMING OUT IN THE 22-30 PERCENT RANGE
  THIS AFTERNOON..

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY EAST TO
  NORTHEAST WIND. THIS COULD CAUSE RAPID RATES OF FIRE SPREAD AND
  CONTROL PROBLEMS.

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.

&&

$$

WAZ657-659-060000-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2300Z/
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
832 AM PDT FRI OCT 5 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 657 AND 659...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY. 

* AFFECTED AREA...WEST SLOPES OF THE CENTRAL CASCADES AND 
  ADJACENT FOOTHILLS...INCLUDING LOCATIONS WEST OF STEVENS... 
  SNOQUALMIE... STAMPEDE AND WHITE PASSES...AS WELL AS NORTH 
  BEND AND ENUMCLAW. 

* WINDS...EAST 10 TO 15 MPH.

* TIMING...EAST WIND INCREASING TONIGHT...PEAKING IN STRENGTH ON 
  SATURDAY MORNING. 

* RELATIVE HUMIDITY...MINIMUM RELATIVE HUMIDITY THIS AFTERNOON OF
  18-33 PERCENT. VERY POOR HUMIDITY RECOVERY TONIGHT...AS LOW AS
  35 PERCENT ON ELEVATED TERRAIN.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

WAZ650-651-060000-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2200Z/
NORTH COASTAL LOWLANDS-CENTRAL COASTAL LOWLANDS-
832 AM PDT FRI OCT 5 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 650 AND 651...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY. 

* AFFECTED AREA...COASTAL LOWLANDS...PARTICULARLY HILLTOPS AND
  RIDGES EXPOSED TO EAST WIND.

* WINDS...EAST 10 TO 15 MPH WITH GUSTS OF 20 MPH. RIDGES ON THE
  NORTHWEST OLYMPIC PENINSULA WILL EXPERIENCE WINDS OF 15 TO 20
  MPH WITH GUSTS OF 30 TO 35 MPH.

* TIMING...NOW THROUGH SATURDAY.

* RELATIVE HUMIDITY...AFTERNOON RELATIVE HUMIDITY OF 18-30 PERCENT. RIDGES
  WILL EXPERIENCE VERY POOR HUMIDITY RECOVERIES TONIGHT AS LOW AS
  35 PERCENT.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

HANER

WEATHER.GOV/SEATTLE
983 
WWUS86 KSEW 052255
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
355 PM PDT FRI OCT 5 2012

...DRY EAST WIND EVENT THROUGH SUNDAY MORNING...

.A THERMAL PRESSURE TROUGH NEAR THE COAST AND COOL HIGH PRESSURE
EAST OF THE CASCADES WILL LEAD TO AN EAST WIND EVENT THAT WILL
PERSIST UNTIL SUNDAY MORNING. MANY LOCATIONS WILL ALSO EXPERIENCE
EXTREMELY POOR NIGHTTIME HUMIDITY RECOVERY. EAST WIND WILL EASE
SUBSTANTIALLY ON SUNDAY AFTERNOON.

WAZ657-659-061600-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2300Z/
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
355 PM PDT FRI OCT 5 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 657 AND 659...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT SATURDAY. 

* AFFECTED AREA...WEST SLOPES OF THE CENTRAL CASCADES AND 
  ADJACENT FOOTHILLS...INCLUDING LOCATIONS WEST OF STEVENS... 
  SNOQUALMIE... STAMPEDE AND WHITE PASSES...AS WELL AS NORTH 
  BEND AND ENUMCLAW. 

* WINDS...EAST 10 TO 15 MPH. LOCALIZED GUSTS NEAR 30 MPH.

* TIMING...EAST WIND INCREASING TONIGHT...PEAKING IN STRENGTH ON 
  SATURDAY MORNING. 

* RELATIVE HUMIDITY...VERY POOR HUMIDITY RECOVERY TONIGHT...AS
  LOW AS 35 PERCENT ON ELEVATED TERRAIN.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

WAZ649-654-655-060500-
/O.CON.KSEW.FW.W.0007.000000T0000Z-121006T0500Z/
NORTH AND CENTRAL COASTAL STRIP-
CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
355 PM PDT FRI OCT 5 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR DRY EAST WIND FOR FIRE WEATHER ZONES 649...654 AND
655...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

* AFFECTED AREA...CENTRAL AND SOUTH PUGET SOUND LOWLANDS AND THE 
  COASTAL STRIP. 

* WINDS...EAST TO NORTHEAST 7 TO 14 MPH. WIND GUSTS NEAR 20 MPH.

* TIMING...THE MOST CRITICAL COMBINATION OF WIND AND LOW HUMIDITY
  WILL TAKE PLACE DURING THE REMAINDER OF THE AFTERNOON.

* RELATIVE HUMIDITY...BOTTOMING OUT IN THE 17-24 PERCENT RANGE
  THIS AFTERNOON.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY EAST TO 
  NORTHEAST WIND. THIS COULD CAUSE RAPID RATES OF FIRE SPREAD 
  AND CONTROL PROBLEMS. 

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.

&&

$$

WAZ650-651-061600-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2200Z/
NORTH COASTAL LOWLANDS-CENTRAL COASTAL LOWLANDS-
355 PM PDT FRI OCT 5 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 650 AND 651...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT SATURDAY. 

* AFFECTED AREA...COASTAL LOWLANDS...PARTICULARLY HILLTOPS AND 
  RIDGES EXPOSED TO EAST WIND. 

* WINDS...EAST 10 TO 15 MPH WITH GUSTS OF 20 MPH. RIDGES ON THE 
  NORTHWEST OLYMPIC PENINSULA WILL EXPERIENCE WINDS OF 15 TO 20 
  MPH WITH GUSTS OF 30 TO 35 MPH. 

* TIMING...NOW THROUGH SATURDAY.

* RELATIVE HUMIDITY...RIDGES WILL EXPERIENCE VERY POOR HUMIDITY
  RECOVERIES TONIGHT AS LOW AS 35-45 PERCENT.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

HANER

WEATHER.GOV/SEATTLE
897 
WWUS86 KSEW 061531
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
831 AM PDT SAT OCT 6 2012

...DRY EAST WIND EVENT THROUGH SUNDAY MORNING...

.A THERMAL PRESSURE TROUGH NEAR THE COAST AND COOL HIGH PRESSURE
EAST OF THE CASCADES WILL LEAD TO AN EAST WIND EVENT THAT WILL
PERSIST UNTIL SUNDAY MORNING. MANY LOCATIONS WILL ALSO EXPERIENCE
EXTREMELY POOR NIGHTTIME HUMIDITY RECOVERY. EAST WIND WILL EASE
SUBSTANTIALLY ON SUNDAY AFTERNOON.

WAZ649-654-655-062200-
/O.EXA.KSEW.FW.W.0006.000000T0000Z-121006T2200Z/
NORTH AND CENTRAL COASTAL STRIP-
CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
831 AM PDT SAT OCT 6 2012

...RED FLAG WARNING IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON FOR
DRY EAST WIND FOR FIRE WEATHER ZONES 649...654 AND 655...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR DRY EAST WIND...WHICH IS IN EFFECT UNTIL 3 PM PDT
THIS AFTERNOON.

* AFFECTED AREA...CENTRAL AND SOUTH PUGET SOUND LOWLANDS AND THE
  COSTAL STRIP.

* WINDS...EAST TO NORTHEAST 8 TO 15 MPH. WIND GUSTS UP TO 20 MPH.

* TIMING...THE MOST CRITICAL COMBINATION OF WIND AND LOW HUMIDITY
  WILL TAKE PLACE THIS AFTERNOON.

* RELATIVE HUMIDITY...BOTTOMING OUT IN THE 22-30 PERCENT RANGE
  DURING THE AFTERNOON HOURS.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY EAST TO
  NORTHEAST WINDS. THIS COULD CAUSE RAPID RATES OF FIRE SPREAD AND
  CONTROL PROBLEMS.

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.

&&

$$

WAZ657-659-062300-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2300Z/
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
831 AM PDT SAT OCT 6 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT THIS
AFTERNOON FOR DRY EAST WIND FOR FIRE WEATHER ZONES 657 AND 659...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PDT THIS
AFTERNOON. 

* AFFECTED AREA...WEST SLOPES OF THE CENTRAL CASCADES AND 
  ADJACENT FOOTHILLS...INCLUDING LOCATIONS WEST OF STEVENS... 
  SNOQUALMIE... STAMPEDE AND WHITE PASSES...AS WELL AS NORTH 
  BEND AND ENUMCLAW. 

* WINDS...EAST 9 TO 14 MPH.

* TIMING...EAST WIND INCREASING TONIGHT...PEAKING IN STRENGTH THIS
  MORNING AND EARLY AFTERNOON.

* RELATIVE HUMIDITY... MINIMUM RELATIVE HUMIDITY VALUES OF 20-30
  PERCENT ARE EXPECTED.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

WAZ650-651-062200-
/O.CON.KSEW.FW.W.0006.000000T0000Z-121006T2200Z/
NORTH COASTAL LOWLANDS-CENTRAL COASTAL LOWLANDS-
831 AM PDT SAT OCT 6 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON FOR DRY EAST WIND FOR FIRE WEATHER ZONES 650 AND 651...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON. 

* AFFECTED AREA...COASTAL LOWLANDS...PARTICULARLY HILLTOPS AND 
  RIDGES EXPOSED TO EAST WIND. 

* WINDS...EAST 10 TO 15 MPH WITH GUSTS UP TO 20 MPH. RIDGES ON THE
  NORTHWEST OLYMPIC PENINSULA WILL EXPERIENCE WINDS OF 15 TO 20
  MPH WITH GUSTS UP TO 30 TO 35 MPH.

* TIMING...NOW THROUGH SATURDAY.

* RELATIVE HUMIDITY...AFTERNOON MINIMUM RELATIVE HUMIDITY VALUES
  ARE EXPECTED TO RANGE FROM 20-30 PERCENT.

* IMPACTS...ANY FIRE THAT DEVELOPS MAY EXPERIENCE DRY FOEHN-LIKE 
  EAST WIND THAT COULD CAUSE RAPID RATES OF FIRE SPREAD AND 
  CONTROL PROBLEMS. 

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.

&&

$$

The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 4, 2:13 PM PDTSmall Craft AdvisorySEW7 hr

Nearby

Red Flag Warnings in Washington, 2012Every red flag warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.