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Red Flag Warning


URGENT - FIRE WEATHER MESSAGE
National Weather Service Seattle WA
203 PM PDT Tue Jul 15 2025

WAZ658-659-160545-
/O.UPG.KSEW.FW.A.0001.000000T0000Z-250717T0600Z/
/O.NEW.KSEW.FW.W.0001.250716T1800Z-250717T0600Z/
West Slopes of the North Cascades Generally above 1500 Feet-
West Slopes of the Central Cascades Generally above 1500 Feet-
203 PM PDT Tue Jul 15 2025

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT WEDNESDAY
FOR HOT, DRY AND UNSTABLE CONDITIONS FOR FIRE WEATHER ZONES
658 AND 659...

The National Weather Service in Seattle has issued a Red Flag
Warning for hot, dry and unstable conditions, which is in effect
from 11 AM to 11 PM PDT Wednesday. The Fire Weather Watch is no
longer in effect.

* 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.

* WINDS...Northwest 5 to 10 mph.

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

* TEMPERATURES...Up to 95.

* IMPACTS...A combination of low relative humidity, unstable
  airmass, 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.

* 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 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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Page last modified: June 2, 2009
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