405
FNUS76 KOTX 292155
FWSOTX

Spot Forecast for Grande Fire...NE WA IMT #1
National Weather Service Spokane WA
255 PM PDT Fri Aug 29 2025

Forecast is based on forecast start time of 1500 PDT on August 29.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Partly cloudy skies with isolated thunderstorms through the
evening. Any shower activity will diminish overnight with a dry
warming trend. The trend will continue into the weekend with poor
overnight RH recoveries. Record heat is expected into early next
week and remaining very dry. Winds will continue to be light and
terrain driven.

.TONIGHT...

Sky/weather.........Partly cloudy. Slight chance of showers and
                    thunderstorms through the evening. Becoming
                    mostly clear overnight.
CWR.................5 percent.
Chance of lightning.15 percent through 2000 PDT. Becoming 0 percent.
Min temperature.....Around 60.
Max humidity........60 percent.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
                    near thunderstorms in the evening.
Mixing height.......5000 ft AGL falling to near surface.
Transport winds.....East around 5 mph in the evening becoming
                    light.

.SATURDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....Around 80.
Min humidity........18 percent.
Wind (20 ft)........Light winds becoming southwest 4 to 8 mph with
                    gusts near 15 mph in the afternoon.
Mixing height.......4000 ft AGL increasing to 9500 ft AGL in the
                    afternoon.
Transport winds.....Light winds becoming southwest around 15 mph in
                    the afternoon.

.SATURDAY NIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....Around 66.
Max humidity........38 percent.
Wind (20 ft)........South winds around 5 mph shifting to the
                    light overnight.
Mixing height.......6500 ft AGL falling to 0 ft AGL.
Transport winds.....South around 8 mph shifting to the east around
                    8 mph overnight.

$$
Forecaster...JCLEV
Requested by...Jessica Walston
Type of request...WILDFIRE
.TAG 2520874.2/OTX
.DELDT 08/29/25
.FormatterVersion 2.0.0
.EMAIL jessica.walston@dnr.wa.gov