853
FNUS76 KOTX 242325
FWSOTX

Spot Forecast for Hill Loop...USDA
National Weather Service Spokane WA
425 PM PDT Mon Aug 24 2026

Forecast is based on forecast start time of 0600 PDT on August 25.
.DISCUSSION...

Warming continues Tuesday as high pressure strengthens. Winds
Tuesday will be light. RH recovery Tuesday night will be poor.
Winds Wednesday and Thursday will be breezy out of the southwest
around 10-15 mph with gusty around 20-25 mph as high pressure
breaks down. Winds Thursday will be on the higher end of the
ranges above as a dry cold front passage occurs in the mid to late
afternoon. This will come with a threat of isolated thunderstorms
Wednesday (10% chance).

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

.TUESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....87.
Min humidity........16-21 percent.
Wind (20 ft)........Northeast winds 2-5 mph becoming southwest
                    around 1300 hours.
Mixing height.......4500 ft AGL.
Transport winds.....Northeast around 6 mph shifting to the south in
                    the afternoon.
Ventilation Index...Low (186) increasing to moderate (324) in the
                    afternoon.

.TUESDAY NIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....63.
Max humidity........40-45 percent.
Wind (20 ft)........Light and variable winds 1-2 mph.
Mixing height.......Falling to near surface around
Transport winds.....Northeast 5 to 6 mph.
Ventilation Index...Low (107).

.WEDNESDAY...

Sky/weather.........Mostly sunny. 10 percent chance of
                    thunderstorms in the afternoon.
                    afternoon.
CWR.................0 percent.
Chance of lightning.10 percent.
Max temperature.....88.
Min humidity........18-23 percent.
Wind (20 ft)........East/northeast winds 1-3 mph in the morning
                    becoming southwest 7-10 mph around 1200. Wind
                    gusts up to 20 mph in the afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    in the afternoon.
Mixing height.......5500 ft AGL.
Transport winds.....Northeast around 6 mph shifting to the south
                    around 10 mph in the afternoon.
Ventilation Index...Low (124) increasing to high (717) in the
                    afternoon.

$$
Forecaster...DB
Requested by...April Miller
Type of request...WILDFIRE
.TAG 2620245.2/OTX
.DELDT 08/24/26
.FormatterVersion 2.0.0
.EMAIL christopher.miller2@usda.gov