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NWS Seattle WAFW.W 0007August 22, 2026

Red Flag Warning: West Slopes of the Central Cascades Generally above 1500 Feet, WA

The National Weather Service office in Seattle issued a red flag warning for West Slopes of the Central Cascades Generally above 1500 Feet in Washington, which was in force until 5:00 p.m. local time on August 22. It was the 7th red flag warning the NWS office in Seattle issued in 2026. Washington had 20 red flag warnings in August 2026, against 11 in an average August of 2008-2025 (Washington's red flag warnings by year).

ExpiredWarning

Issued3:43 a.m. PDT, August 22, 2026
In force from9:00 a.m. PDT, August 22, 2026
Expired5:00 p.m. PDT, August 22, 2026

In force for 8 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Seattle WA
Area
West Slopes of the Central Cascades Generally above 1500 Feet
State
Washington
Level
Warning
Issued
3:43 a.m. PDT, August 22, 2026
In force from
9:00 a.m. PDT, August 22, 2026
Expires
5:00 p.m. PDT, August 22, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KSEW FW.W 0007
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

The National Weather Service in Seattle has issued a Red Flag Warning for lightning and gusty outflow winds, which is in effect from 9 AM this morning to 5 PM PDT this afternoon. * AFFECTED AREA...Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet. * LIGHTNING...Scattered thunderstorm coverage is possible across the Central Cascades. * OUTFLOW WINDS...Any storms that develop will be capable of gusty and erratic outflow winds between 20 and 30 miles per hour. Outflow winds can occur ahead of and behind storms and cause erratic wind directions. * IMPACTS...Scattered lightning in dry fuels can cause multiple fire starts. Thunderstorms can also bring sudden sharp wind shifts on existing fires, causing rapid changes in a fire's rate of spread and direction of spread. Thunderstorm outflow winds can be a threat for several hours following the start of a new lightning-caused fire. If a fire were to begin, air quality may diminish in the surrounding area.

What the agency told people to do

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.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.