286
WWUS86 KSEW 021013
RFWSEW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Seattle WA
313 AM PDT Tue Sep 2 2025

WAZ658-659-021815-
/O.NEW.KSEW.FW.A.0004.250903T1900Z-250904T0400Z/
West Slopes of the North Cascades Generally above 1500 Feet-
West Slopes of the Central Cascades Generally above 1500 Feet-
313 AM PDT Tue Sep 2 2025

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING FOR HOT, DRY AND UNSTABLE CONDITIONS FOR FIRE
WEATHER ZONES 658 AND 659...

The National Weather Service in Seattle has issued a Fire Weather
Watch for hot, dry and unstable conditions, which is in effect
from Wednesday afternoon through Wednesday evening.

* AFFECTED AREA...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.

* RELATIVE HUMIDITY...As low as 20 percent.

* TEMPERATURES...Up to 90 degrees.

* STABILITY...Unstable conditions can be expected.

* IMPACTS...A dry and unstable air mass with warm temperatures
  can contribute to active fire behavior. In western Washington,
  significant growth on existing fires takes place under such
  conditions. If a fire were to begin, air quality may diminish
  in the surrounding area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that there is a potential for critical
fire weather conditions to develop. Monitor the forecasts for
possible Red Flag Warnings.

&&

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