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FNUS76 KOTX 211543
FWSOTX

Spot Forecast for Camas RX...Washington DNR
National Weather Service Spokane WA
843 AM PDT Mon Sep 21 2026

Forecast is based on ignition time of 0900 PDT on September 21.
.DISCUSSION...

Dry and warm conditions today with diurnally driven terrain winds
less than 10 mph. Fair relative humidity recoveries are expected
tonight. A weak weather system arrives Tuesday, cooling
temperatures by around 10 degrees compared to Monday. This will
also keep winds from the north to northwest through the day. Weather
continues to trend cooler through the rest of the work week.

If conditions become unrepresentative, contact the National Weather
Service.
***************************************************************
Forecasts for 20 foot wind speeds (valleys and ridge tops) are
10 minute averages reflecting RAWS wind.
***Ventilation Index is derived from transport wind
   multiplied by the mixing height divided by 100.
   Categories: low (< 200), moderate (200-500),
   high (500-800), and very high (> 800).
***************************************************************

.TODAY...

Sky/weather.........Sunny in the morning with high clouds increasing
                    in the afternoon resulting in filtered sunshine.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....79-82.
Min humidity........30-35 percent.
Wind (20 ft)........Light west winds this morning, shifting to the
                    east 2 to 4 mph between 1000-1100. East-southeast
                    winds increasing to 5 to 8 mph around 1300.
Mixing height.......5500 ft AGL in the afternoon.
Transport winds.....West 1 to 3 mph this morning shifting to the
                    south-southwest 2 to 5 mph in the afternoon.
Ventilation Index...Low (62) increasing to moderate (389) in the
                    afternoon.

.TONIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....50.
Max humidity........60-65 percent.
Wind (20 ft)........Winds shifting to the northwest 4 to 7 mph
                    between 1900-2000.
Mixing height.......Falling to near the surface between 1800-1900.
Transport winds.....Northwest 9 to 11 mph.
Ventilation Index...Low (114).

.TUESDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....69-72.
Min humidity........35-40 percent.
Wind (20 ft)........Northwest 3 to 6 mph in the morning becoming
                    north to northwest 5 to 8 mph in the afternoon.
Mixing height.......5000 ft AGL in the afternoon.
Transport winds.....Northwest 10 to 12 mph.
Ventilation Index...Moderate (227) increasing to high (512) in the
                    afternoon.

$$
Forecaster...VT
Requested by...Steven Reptsis
Type of request...PRESCRIBED
.TAG 2622173.1/OTX
.DELDT 09/21/26
.FormatterVersion 2.0.0
.EMAIL nicholas.gale@dnr.wa.gov,bryan.lyle@dnr.wa.gov,steven.reptsis@dnr.wa.gov,nolan.brewer@dnr.wa.gov,walter.escobar@dnr.wa.gov