FNUS76 KOTX 181426

FWSOTX



Spot Forecast for BEAVER...FS

National Weather Service Spokane WA

726 AM PDT Sat Jul 18 2026



Forecast is based on forecast start time of 0700 PDT on July 18. 

.DISCUSSION...



Dry and breezy northwest winds will prevail today, though the 

strongest winds will be along the ridgetops to the west and 

northeast of the fire location. Temperatures will be about 15-20

degrees warmer in the nearby Methow Valley than at the fire

location today and Sunday. Humidity recoveries tonight will be 

good, though minimum humidity values will be notably lower on 

Sunday with weaker southwesterly winds developing.



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). 

***************************************************************



.REST OF TODAY...



Sky/weather.........Mostly sunny. Patchy smoke.

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 65 to 70. 

Min humidity........30 to 35 percent. 

Wind (20 ft)........Northwest winds 9 to 12 mph becoming west-

                    northwesterly through about 1200 hours. Winds

                    then steadily increase to 13 to 16 mph through 

                    1700 hours while becoming northwesterly again.

                    Gusts of 25 mph to 30 mph possible in the afternoon. 

Mixing height.......4000 ft AGL increasing to 5500 ft AGL in the 

                    afternoon. 

Transport winds.....West 12 to 17 mph. 

Ventilation Index...Moderate (360) increasing to high (740) in the 

                    afternoon. 



.TONIGHT...



Sky/weather.........Mostly clear. Patchy smoke.

CWR.................0 percent. 

Chance of lightning.0 percent. 

Min temperature.....Around 46-50. 

Max humidity........63 to 68 percent. 

Wind (20 ft)........Northwest to north winds 8 to 13 mph through 0200

                    hours with gusts up to 25 mph. Northerly winds then

                    decrease through 0400 hours before becoming light

                    and variable. 

Mixing height.......3500 ft AGL falling to 500 ft AGL. 

Transport winds.....Northwest 10 to 15 mph. 

Ventilation Index...Moderate (477) decreasing to low (49) 

                    overnight. 



.SUNDAY...



Sky/weather.........Sunny. 

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 70-73. 

Min humidity........23-28 percent. 

Wind (20 ft)........East to northeast winds 5 to 6 mph shifting to the 

                    southwest around 7 to 10 mph in the afternoon. 

Mixing height.......4000 ft AGL increasing to 8500 ft AGL in the 

                    afternoon. 

Transport winds.....West 9 to 12 mph. 

Ventilation Index...Moderate (208) increasing to high (694) in the 

                    afternoon. 



$$

Forecaster...PP

Requested by...IC

Type of request...WILDFIRE

.TAG 2617661.0/OTX

.DELDT 07/18/26

.FormatterVersion 2.0.0

.EMAIL wacwc@firenet.gov