Headline:
Red Flag Warning issued July 23 at 12:25PM PDT until July 25 at 8:00PM PDT by NWS Pendleton OR
Event:
Red Flag Warning
Urgency:
Expected
Effective:
July 23, 2026 - 12:25pm
Expires:
July 23, 2026 - 8:30pm
Description:
...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ...
WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY...
The upper level low offshore will shift to the east just enough
to allow for monsoonal moisture to move into the region.
Instability will accompany the moisture and allow for increased
chances of isolated to scattered thunderstorms across the eastern
mountains. Brief heavy downpours, gusty outflow winds in excess
of 45 mph, small hail, and frequent lightning will be possible. A
strong to briefly severe thunderstorm cannot be ruled out this
afternoon and early evening.
Friday the upper level low will eject into the region bringing
windy conditions to many of the Cascade Gaps as well as central
OR. Humidities both Friday and Saturday will be critical.
* AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 691
Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of
Washington and 704 Northern Deschutes National Forest.
* TIMING...From 10 AM to 8 PM PDT Saturday.
* WINDS...West 15 to 25 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 23 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
Instruction:
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.
Area Description:
Lower Columbia Basin of Oregon; Northern Deschutes National Forest; Kittitas Valley; Lower Columbia Basin
Forcast Office:
NWS Pendleton OR
Sender: