035
FNUS76 KSEW 211750
FWSSEW

Spot Forecast for Mt Tom Creek...USFS
National Weather Service Seattle WA
1050 AM PDT Fri Aug 21 2026

Forecast is based on forecast start time of 1100 PDT on August 21.
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.

...FIRE WEATHER WATCH IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY EVENING...

.DISCUSSION...Dry today with continued low-level onshore flow and
meager instability. The main headline will be the return of
showers and thunderstorms late tonight into tomorrow. A slight
chance (15%) of thunder exists during this time period. Wetting
rain does not appear favorable.


.REST OF TODAY...

Sky/weather.........Mostly sunny (45-55 percent) then becoming
                    mostly cloudy (70-80 percent).
CWR.................0 percent.
Chance of lightning.4 percent.
Max temperature.....Around 77.
Min humidity........48 percent.
Wind (20 ft)........Light winds becoming west around 5 mph in the
                    afternoon.
Mixing height.......2100 ft AGL.
Transport winds.....West around 5 mph.
Rainfall amount.....0.00 inches.
Ceiling (KFT).......25.
Visibility..........10.

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent). Showers likely
                    overnight.
CWR.................3 percent.
Chance of lightning.15 percent.
Min temperature.....Around 60.
Max humidity........85 percent.
Wind (20 ft)........Light winds.
Mixing height.......300 ft AGL.
Transport winds.....Southeast around 5 mph.
Rainfall amount.....0.00 to 0.10 inches.
Ceiling (KFT).......9.2 decreasing to 1.3 overnight.
Visibility..........10.

.SATURDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers
                    likely in the morning. Slight chance of
                    thunderstorms through the day. Chance of rain
                    showers in the afternoon.
CWR.................15 percent.
Chance of lightning.15 percent.
Max temperature.....Around 60.
Min humidity........78 percent.
Wind (20 ft)........South winds around 5 mph shifting to the
                    southwest around 5 mph in the afternoon. Gusty
                    and erratic winds expected near thunderstorms.
Mixing height.......1300 ft AGL.
Transport winds.....South around 6 mph.
Rainfall amount.....0.10 to 0.15 inches.
Ceiling (KFT).......1.1 in the morning.
Visibility..........7 in the morning.

$$
Forecaster...McMillian
Requested by...Eric DeCamp
Type of request...WILDFIRE
.TAG 2620179.0/SEW
.DELDT 08/21/26
.FormatterVersion 2.0.0
.EMAIL wapsc@firenet.gov