Twin Sisters Fire

Walla Walla County, Washington · Wildfire

Contained Official numbers updated Aug 24, 2026 (11 days ago)
First reported about 3 months ago
Metric Now
Size
8,262 acres
Sep 5, 4:00 AM
Containment
100%
Sep 5, 4:00 AM
Crew size
6
Sep 5, 4:00 AM
Money spent
$600,000
Sep 5, 4:00 AM

Twin Sisters Fire and other nearby fires

🔥 Where this fire started Mostly contained Partly contained Containment not reported

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Twin Sisters Fire summary

The Twin Sisters Fire is a wildfire near Walla Walla County, Washington. It has burned about 8,262 acres (about 6,000 football fields). Crews have it fully contained, with a line all the way around it. It was first reported about 3 months ago. About 6 people are on it, run by a Type 3 Team. We're also tracking 7 other active fires within about 75 miles.

Size
8,262 acres
Containment
100%
Discovered
June 14, 2026 (first reported about 3 months ago)
Cause
Not reported

The size and containment above are current as of Saturday, September 5th at 4:00 a.m. CDT.

Weather & fire-spread conditions

No Red Flag Warning. The National Weather Service hasn't flagged this area for dangerous fire-spread conditions right now.

Hot, dry, and windy weather can help a fire grow; cool, calm, or wet weather helps crews. The tags below rate each day for fire spread — green is calm, red can push a fire.

A general fire-weather guide (wind matters most, then how dry it is, then heat), not a prediction of what this fire will do.

Overnight

55°F · Mostly Cloudy

Wind 3 mph W · 9% chance of rain

Wind: Calm Heat: Cool Dry

Saturday

65°F · Mostly Sunny then Slight Chance Rain Showers

Wind 3 mph NW · 20% chance of rain

Wind: Calm Heat: Cool Some rain

Saturday Night

55°F · Slight Chance Rain Showers

Wind 2 mph S · 20% chance of rain

Wind: Calm Heat: Cool Some rain

Sunday

64°F · Mostly Cloudy then Chance Rain Showers

Wind 3 mph W · 40% chance of rain

Wind: Calm Heat: Cool Some rain

Sunday Night

58°F · Chance Rain Showers

Wind 3 to 16 mph SW · 52% chance of rain

Wind: Breezy Heat: Cool Rain likely

Forecast from the National Weather Service (weather.gov), pulled Saturday, September 5th at 4:02 a.m. CDT.

Who's on it

About 6 people are assigned to this fire, run by a Type 3 Team. The government rates it a Type 3 Incident. About $600,000 has been spent on it so far.

The official feed reports the total headcount, not a breakdown by crew type.

Where to get live updates

We show the daily official picture. For minute-by-minute updates, evacuation orders, and maps, these do it best:

Nearby fires to Twin Sisters Fire

Within about 75 miles we're tracking 7 other active fires, closest first:

See all active fires in Washington →

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