049
FNUS76 KOTX 012145
FWSOTX

Spot Forecast for Blackhawk Mountain & Crown Creek Fires...NE WA IMT #1
National Weather Service Spokane WA
245 PM PDT Mon Sep 1 2025

Forecast is based on forecast start time of 0600 PDT on September 02.
If conditions become unrepresentative...contact the National Weather
Service.

...HEAT ADVISORY IN EFFECT UNTIL 8 PM PDT THURSDAY...

.DISCUSSION...

High pressure will be over the fire through the week delivering
hot temperatures and dry and unstable conditions each afternoon
with a deep mixing layer. Overnight humidity recoveries will be poor
for the midslopes and ridge tops.

.TUESDAY...

Sky/weather.........Sunny. Areas of smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....1500-2500 feet: 96-102. 2500-4000 feet: 89-96.
Min humidity........14-17 percent.
Wind (20 ft)........Slope/Valley: Northeast 2 to 4 mph.
                    Ridgetop: East 6 to 10 mph becoming north 4 to
7 mph in the afternoon.
Mixing height.......11500 ft AGL.
Transport winds.....Northeast around 5 mph in the morning becoming
                    light.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear. Areas of smoke.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....1500-2500 feet: 55-59.  2500-4000 feet: 60-64.
Max humidity........32-42 percent mid to upper slopes.  57-67 percent
                    valley bottom.
Wind (20 ft)........Slope/Valley: Downslope/downvalley 1 to 3 mph.
                    Ridgetop: East 4 to 8 mph.
Mixing height.......Falling to near surface around 2000 hours.
Transport winds.....Light winds becoming northeast around 5 mph
                    overnight.

.WEDNESDAY...

Sky/weather.........Sunny. Areas of smoke in the morning.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....1500-2500 feet: 96-102. 2500-4000 feet: 89-96.
Min humidity........13-16 percent.
Wind (20 ft)........Slope/Valley: East 2 to 4 mph in the morning
                    becoming southwest around 1200 hours.
                    Ridgetop: East 4 to 8 mph becoming northwest
                    in the afternoon.
Mixing height.......2500 ft AGL increasing to 12000 ft AGL in the
                    afternoon.
Transport winds.....Light winds becoming northwest around 6 mph in
                    the afternoon.

$$
Forecaster...DB
Requested by...Jessica Walston
Type of request...WILDFIRE
.TAG 2521003.3/OTX
.DELDT 09/01/25
.FormatterVersion 2.0.0
.EMAIL eric.krausz@dnr.wa.gov,jessica.walston@dnr.wa.gov,2025.Grande@firenet.gov