003
FNUS76 KSEW 011449
FWSSEW

Spot Forecast for Perry Incident WA-NCP-000415...National Park Service
National Weather Service Seattle WA
749 AM PDT Mon Sep 1 2025

Forecast is based on forecast start time of 0800 PDT on September 01.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (206) 526-6095, if you have questions
or concerns with this forecast.

.DISCUSSION...Expect warmer and drier conditions at the incident
today, with a surface inversion that will likely mix out by early
afternoon. This will be a similar trend on Tuesday, with an
inversion developing above the fire overnight, before mixing out
Tuesday with very warm temperatures and RH values approaching
critical thresholds. General winds remain light through Tuesday.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent), with areas of smoke.
CWR.................0 percent.
Chance of lightning.6 percent.
Max temperature.....Around 84.
Min humidity........25 percent.
Wind (20 ft)........Light winds.
Mixing height.......6200 ft AGL.
Transport winds.....Southeast around 7 mph.
Rainfall amount.....0.00 inches.
Ceiling.............Low clouds/smoke early, becoming unlimited.
Visibility..........Generally 6 miles or greater, with local limited
                    visibility in smoke this morning.

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
Chance of lightning.3 percent.
Min temperature.....Around 62.
Max humidity........72 percent.
Wind (20 ft)........Light winds.
Mixing height.......1300 ft AGL.
Transport winds.....Southeast around 4 mph.
Rainfall amount.....0.00 inches.
Ceiling.............Low clouds/smoke becoming trapped for the lower
                    elevations of the incident.
Visibility..........Generally 6 miles or greater, with local limited
                    visibility in smoke this morning.

.TUESDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 89.
Min humidity........20 percent.
Wind (20 ft)........Light winds.
Mixing height.......5000 ft AGL.
Transport winds.....East around 6 mph.
Rainfall amount.....0.00 inches.
Ceiling.............Low clouds/smoke early, becoming unlimited.
Visibility..........Generally 6 miles or greater, with local limited
                    visibility in smoke this morning.

$$
Forecaster...Cullen
Requested by...Tim Nolan
Type of request...WILDFIRE
.TAG 2520981.2/SEW
.DELDT 09/01/25
.FormatterVersion 2.0.0
.EMAIL timothy_nolan@nps.gov,wapsc@firenet.gov,matthew_desimone@nps.gov