729
FNUS76 KOTX 021950
FWSOTX

Spot Forecast for Sinlahekin...USFS
National Weather Service Spokane WA
1250 PM PDT Fri Oct 2 2026

Forecast is based on forecast start time of 0600 PDT on October 03.
.DISCUSSION...

Weak high pressure builds in over the weekend, with minor upper
waves rippling through it. That will result in dry conditions,
variable clouds and mild temperatures.  Winds are forecast to be
diurnally-driven, with some slightly higher ridgetops winds.

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).
***************************************************************

.SATURDAY...

Sky/weather.........Partly sunny then becoming mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Valleys (below 4000 ft)...58-62.
                    Ridges  (above 4000 ft)...52-57.
Min humidity........51-58 percent.
Wind (20 ft)........Downslope/downvalley 2 to 4 mph
                    through 1000-1200 then shifting to
                    upslope/upvalley 3 to 6 mph, locally
                    to 10 mph on ridgetops.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....40-46.
Max humidity........64-79 percent.
Wind (20 ft)........Downslope/downvalley/northwest 4-9 mph.

.SUNDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....57-65.
Max temperature.....Valleys (below 4000 ft)...62-66.
                    Ridges  (above 4000 ft)...55-61.
Min humidity........41-46 percent.
Wind (20 ft)........Downslope/downvalley 2 to 4 mph
                    through 1000-1200 then shifting to
                    upslope/upvalley 4 to 7 mph, locally
                    to 12 mph on ridgetops.
$$
Forecaster...MSC
Requested by...April Miller
Type of request...WILDFIRE
.TAG 2622514.6/OTX
.DELDT 10/02/26
.FormatterVersion 2.0.0
.EMAIL christopher_miller@firenet.gov