606
WWUS86 KSEW 151951
RFWSEW
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1251 PM PDT MON SEP 15 2025
WAZ655>659-161000-
/O.UPG.KSEW.FW.A.0005.250916T1200Z-250917T0600Z/
/O.NEW.KSEW.FW.W.0006.250916T1200Z-250917T0600Z/
BLACK HILLS AND SOUTHWEST INTERIOR LOWLANDS-
NORTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET-
WEST SLOPES OF THE NORTH CASCADES GENERALLY ABOVE 1500 FEET-
WEST SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET-
1251 PM PDT MON SEP 15 2025
...RED FLAG WARNING IN EFFECT FROM 5 AM TO 11 PM PDT TUESDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 655,
656, 657, 658, AND 659...
THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY, WHICH IS IN
EFFECT FROM 5 AM TO 11 PM PDT TUESDAY. THE FIRE WEATHER WATCH IS
NO LONGER IN EFFECT.
* AFFECTED AREA...FIRE WEATHER ZONE 655 BLACK HILLS AND
SOUTHWEST INTERIOR LOWLANDS, FIRE WEATHER ZONE 656 NORTHEAST
PUGET SOUND LOWLANDS GENERALLY BELOW 1500 FEET, FIRE WEATHER
ZONE 657 SOUTHEAST PUGET SOUND LOWLANDS GENERALLY BELOW 1500
FEET, FIRE WEATHER ZONE 658 WEST SLOPES OF THE NORTH CASCADES
GENERALLY ABOVE 1500 FEET AND FIRE WEATHER ZONE 659 WEST
SLOPES OF THE CENTRAL CASCADES GENERALLY ABOVE 1500 FEET.
* WINDS...EAST WINDS 15 TO 30 MPH WITH LOCAL GUSTS TO 45 MPH.
* RELATIVE HUMIDITY...AS LOW AS 25 TO 30 PERCENT.
* IMPACTS...A COMBINATION OF MODERATE BREEZES, LOW RELATIVE
HUMIDITY, AND WARM TEMPERATURES CAN CONTRIBUTE TO RAPID RATES
OF SPREAD AND DOWN-WIND SPOTTING ON EXISTING FIRES. IF A FIRE
WERE TO BEGIN, AIR QUALITY MAY DIMINISH IN THE SURROUNDING
AREA.
* ADDITIONAL DETAILS...WINDS WILL BE GREATEST ALONG THE GAPS OF
THE CASCADES ALONG THE I-90 AND US-2 CORRIDOR AS WELL AS AROUND
ENUMCLAW AND IN THE COWLITZ VALLEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER IMMINENT OR OCCURRING NOW. ANY FIRES THAT DEVELOP WILL
LIKELY SPREAD QUICKLY. OUTDOOR BURNING IS NOT RECOMMENDED.
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