Red Flag Warning 3, NWS Seattle, WA

Issued

Aug 24, 2016, 2:39 PM PDT (21:39 UTC)

In effect from

Aug 25, 2016, 10:00 AM PDT

Expired

Aug 25, 2016, 10:00 PM PDT

In force

12 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, Thurston County, WA

The Langley Hill radar (KLGX), 92 km from the middle of the area, began a volume at 21:44 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.

488 
WWUS86 KSEW 242139
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
239 PM PDT WED AUG 24 2016

...MODERATE BREEZES AND LOW RELATIVE HUMIDITY EXPECTED FOR
SEVERAL HOURS ON THURSDAY...

.A WEAK THERMAL PRESSURE TROUGH ALONG THE COAST WILL LEAD TO
WARMING AND DRYING NORTH AND NORTHEAST WINDS THROUGH FRIDAY.
THURSDAY LOOKS LIKE THE DAY WITH THE MOST CRITICAL COMBINATION OF
LOW HUMIDITY AND MODERATE BREEZES LASTING FOR SEVERAL HOURS.

WAZ650-654-655-657-251600-
/O.UPG.KSEW.FW.A.0003.160825T1700Z-160826T0500Z/
/O.NEW.KSEW.FW.W.0003.160825T1700Z-160826T0500Z/
NORTH COASTAL LOWLANDS-CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
239 PM PDT WED AUG 24 2016

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 10 PM PDT THURSDAY
FOR MODERATE BREEZES AND LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM TO 10 PM PDT THURSDAY.
THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...FIRE WEATHER ZONE 650...INCLUDING
  FORKS...QUILLAYUTE...AND ELLIS MOUNTAIN. FIRE WEATHER ZONES
  654....655 AND 657...INCLUDING THE I-5 CORRIDOR FROM SEATTLE ON
  SOUTH THROUGH LEWIS COUNTY AND THE KITSAP PENINSULA.

* WIND...NORTH OR NORTHEAST WIND 8 TO 14 MPH WITH GUSTS TO 20 MPH. 

* HUMIDITY...20-30 PERCENT.

* TIMING...THE COMBINATION OF SUSTAINED WINDS IN EXCESS OF 10-12
  MPH AND HUMIDITY BELOW 30 PERCENT WILL LAST FOR 3 TO 5 HOURS
  FROM LATE MORNING THROUGH EARLY EVENING ON THURSDAY.

* IMPACTS...A COMBINATION OF A MODERATE BREEZE...LOW RELATIVE 
  HUMIDITY AND WARM TEMPERATURES CAN CONTRIBUTE TO RAPID RATES 
  OF SPREAD AND DOWNWIND SPOTTING ON ANY FIRES THAT GET 
  STARTED. THIS APPLIES TO GRASSY ROADSIDE LOCATIONS AS WELL AS 
  FORESTED AREAS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF A
MODERATE BREEZE...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES
CAN CONTRIBUTE TO RAPID RATES OF SPREAD AND DOWNWIND SPOTTING ON
EXISTING FIRES.

&&

$$

004 
WWUS86 KSEW 251500
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
800 AM PDT THU AUG 25 2016

...MODERATE BREEZES AND LOW RELATIVE HUMIDITY EXPECTED FOR
SEVERAL HOURS THIS AFTERNOON AND EVENING...

.THERMALLY INDUCED LOW PRESSURE ALONG THE COAST WILL LEAD TO
WARM AND DRY NORTH TO NORTHEASTERLY FLOW THROUGH FRIDAY.
CRITICALLY LOW HUMIDITY AND MODERATE BREEZES ARE EXPECTED TO
DEVELOP THIS AFTERNOON AND PERSIST FOR SEVERAL HOURS INTO THIS
EVENING. SIMILAR CONDITIONS PERSIST ON FRIDAY BUT WIND SPEEDS ARE
EXPECTED TO EASE.

WAZ650-654-655-657-260500-
/O.CON.KSEW.FW.W.0003.160825T1700Z-160826T0500Z/
NORTH COASTAL LOWLANDS-CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
800 AM PDT THU AUG 25 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR MODERATE BREEZES AND LOW HUMIDITY...

* AFFECTED AREA...FIRE WEATHER ZONE 650...INCLUDING FORKS... 
  QUILLAYUTE...AND ELLIS MOUNTAIN. FIRE WEATHER ZONES 654.... 
  655 AND 657...INCLUDING THE I-5 CORRIDOR FROM SEATTLE ON SOUTH 
  THROUGH LEWIS COUNTY AND THE KITSAP PENINSULA. 

* WIND...NORTH OR NORTHEAST WIND RISING TO 8 TO 14 MPH WITH GUSTS
  TO 20 MPH THIS AFTERNOON AND EVENING.

* HUMIDITY...FALLING TO 20-30 PERCENT.

* TIMING...THE COMBINATION OF SUSTAINED WINDS IN EXCESS OF 10-12
  MPH AND HUMIDITY BELOW 30 PERCENT WILL LAST FOR 3 TO 5 HOURS
  THIS AFTERNOON AND EVENING.

* IMPACTS...A COMBINATION OF A MODERATE BREEZE...LOW RELATIVE
  HUMIDITY AND WARM TEMPERATURES CAN CONTRIBUTE TO RAPID RATES OF
  SPREAD AND DOWNWIND SPOTTING ON ANY FIRES THAT GET STARTED.
  THIS APPLIES TO GRASSY ROADSIDE LOCATIONS AS WELL AS FORESTED
  AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW... OR WILL SHORTLY. A COMBINATION OF A
MODERATE BREEZE...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES
CAN CONTRIBUTE TO RAPID RATES OF SPREAD AND DOWNWIND SPOTTING ON
EXISTING FIRES.

&&

$$

WEATHER.GOV/SEATTLE
MERCER

204 
WWUS86 KSEW 260506
RFWSEW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1006 PM PDT THU AUG 25 2016


WAZ650-654-655-657-260615-
/O.EXP.KSEW.FW.W.0003.000000T0000Z-160826T0500Z/
NORTH COASTAL LOWLANDS-CENTRAL AND SOUTH PUGET SOUND LOWLANDS-
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
1006 PM PDT THU AUG 25 2016

...RED FLAG WARNING HAS EXPIRED...

CRITICAL FIRE WEATHER CONDITIONS HAVE ENDED ACROSS THE AREA. 

$$

Red Flag Warnings in Washington, 2016Every red flag warning in 2016

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.