959
FNUS76 KOTX 311738
FWSOTX

Spot Forecast for Katy Creek Fire...USFS Colville NF
National Weather Service Spokane WA
1038 AM PDT Sun Aug 31 2025

Forecast is based on forecast start time of 1100 PDT on August 31.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Mid and high level clouds will pass through Sunday Night with an
unstable atmosphere as well. Intermittent sprinkles may fall out
of afternoon cumulus buildups as a weak weather disturbance moves
through. Another weather disturbances move through tonight into
early Monday morning.  There is also a 10-15 percent chance of a
thunderstorm with gusty outflow winds this afternoon and tonight,
with any rain expected to be light.  Hot and dry weather is then
expected Monday through the remainder of the week.

.REST OF TODAY...

Sky/weather.........Partly cloudy. Chance of sprinkles through the
                    day. Haze. A 10 percent chance of a thunderstorm
                    in the afternoon.
CWR.................5 percent.
Chance of lightning.10 percent.
Max temperature.....Around 85.
Min humidity........21 percent.
Wind (20 ft)........East 3 to 7 mph.
Mixing height.......Rising to 8500 ft AGL in the afternoon.
Transport winds.....East around 6 mph shifting to the southeast in
                    the afternoon.

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy. Haze
                    in the evening. A 15 percent chance of a
                    thunderstorm with sprinkles or light rain.
CWR.................5 percent.
Chance of lightning.15 percent.
Min temperature.....Around 65.
Max humidity........46 percent.
Wind (20 ft)........Upslope/upvalley 2 to 5 mph becoming downslope/
                    downvalley 3 to 6 mph near 1900. Gusty and
                    erratic winds expected near thunderstorms.
Mixing height.......5500 ft AGL falling to near surface by 2000.
Transport winds.....East around 7 mph shifting to the north around
                    8 mph overnight.

.LABOR DAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 87.
Min humidity........21 percent.
Wind (20 ft)........Downslope/downvalley 2 to 5 mph through 0900
                    then southeast 4 to 8 mph.
Mixing height.......Near surface through 0930 increasing to 8000 ft
                    AGL in the afternoon.
Transport winds.....North around 7 mph shifting to the southeast
                    around 8 mph in the afternoon.

$$
Forecaster...JW
Requested by...Ben Proffitt
Type of request...WILDFIRE
.TAG 2521027.0/OTX
.DELDT 08/31/25
.FormatterVersion 2.0.0
.EMAIL benjamin.proffitt@usda.gov