737
FNUS76 KSEW 181020
FWSSEW

Spot Forecast for Mt Toms Creek Fire...USWFS
National Weather Service Seattle WA
320 AM PDT Sat Jul 18 2026

Forecast is based on forecast start time of 0600 PDT on July 18.
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...Weak upper level trough over the area today will move
northeast Sunday. High pressure builds over Western Washington
Monday with the ridge remaining in place through Wednesday giving
the area much above normal temperatures with drier afternoon
conditions.

.TODAY...

Sky/weather.........Cloudy ( 80-90 percent ) becoming
 mostly sunny (35-45 percent).
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....Around 64.
Min humidity........74 percent.
Wind (20 ft)........Light winds becoming west 5 to 6 mph in the
afternoon.
Mixing height.......2500 ft AGL.
Transport winds.....West around 5 mph.
Rainfall amount.....0.00 inches.
Ceiling (KFT).......0.3 increasing to 10+ in the afternoon.
Visibility..........0.5 increasing to 10 in the afternoon.

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 52.
Max humidity........85 percent.
Wind (20 ft)........West winds 5 to 6 mph in the evening becoming
light.
Mixing height.......300 ft AGL.
Transport winds.....Northeast around 5 mph.
Rainfall amount.....0.00 inches.
Ceiling (KFT).......10+.
Visibility..........10.

.SUNDAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 70.
Min humidity........65 percent.
Wind (20 ft)........Light winds becoming west 5 to 6 mph in the
                    afternoon.
Mixing height.......3800 ft AGL.
Transport winds.....West around 5 mph.
Rainfall amount.....0.00 inches.
Ceiling (KFT).......10+.
Visibility..........3 increasing to 10 by late morning.

$$
Forecaster...Felton
Requested by...Reed Snow
Type of request...WILDFIRE
.TAG 2617100.8/SEW
.DELDT 07/18/26
.FormatterVersion 2.0.0
.EMAIL reed.snow@usda.gov,james.fields@usda.gov