Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Seattle WA
137 PM PDT Fri Aug 22 2025

WAZ658-659-230445-
/O.UPG.KSEW.FW.A.0002.250823T1800Z-250825T0300Z/
/O.NEW.KSEW.FW.W.0002.250823T1200Z-250825T0400Z/
/O.NEW.KSEW.FW.A.0003.250825T1900Z-250827T0400Z/
West Slopes of the North Cascades Generally above 1500 Feet-
West Slopes of the Central Cascades Generally above 1500 Feet-
137 PM PDT Fri Aug 22 2025

...RED FLAG WARNING IN EFFECT FROM 5 AM SATURDAY TO 9 PM PDT
SUNDAY FOR HOT, DRY AND UNSTABLE CONDITIONS FOR FIRE WEATHER
ZONES 658 AND 659...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY EVENING 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 5 AM Saturday to 9 PM PDT Sunday. A new Fire Weather Watch
has also been issued, which is in effect from Monday afternoon
through Tuesday evening. Hot, dry, and unstable conditions may
continue into Monday and Tuesday.

* 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 15 to 25 percent.

* TEMPERATURES...Up to 90 to 100.

* 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.

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.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pendleton OR
117 PM PDT Thu Aug 21 2025

...LOCALLY BREEZY WITH LOW RELATIVE HUMIDITY FRIDAY...

.As a heat wave moves over the region, a transitory period will
allow for locally breezy conditions along the east slopes of the
Oregon Cascades. The Warm Springs Reservation in particular, as
well as southeastern Wasco and northeastern Jefferson Counties,
are expected to see critical fire weather conditions during the
day Friday as RHs drop well into the teens.

ORZ703-230600-
/O.UPG.KPDT.FW.A.0010.250822T2100Z-250823T0600Z/
/O.NEW.KPDT.FW.W.0015.250822T2100Z-250823T0600Z/
Warm Springs Reservation-
117 PM PDT Thu Aug 21 2025

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM PDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE OR703...

The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 11 PM PDT Friday. The Fire Weather Watch is no
longer in effect.

* AFFECTED AREA...Fire Weather Zone 703 Warm Springs Reservation.

* TIMING...From 2 PM to 11 PM PDT Friday.

* WINDS...Northeast 10 to 15 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 12 percent.

* IMPACTS...Any fire that develops will catch and spread
  quickly. Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$