014
FNUS76 KOTX 302001
FWSOTX

Spot Forecast for Kaiser Canyon/Modrite...SE WA Type 3 IMT
National Weather Service Spokane WA
101 PM PDT Wed Sep 30 2026

Forecast is based on forecast start time of 0700 PDT on October 01.
.DISCUSSION...

Weather will be dry with terrain driven winds less than 10 mph
Thursday and Friday. Passing middle and high clouds will result in
filtered sunshine Thursday through Friday morning. Clouds
decrease Friday afternoon and evening. Inversions will lift
between 0900-1000 each morning.

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

.THURSDAY...

Sky/weather.........Partly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....64-74.
Min humidity........30-38 percent.
Wind (20 ft)........Northwest to northeast east winds 4 to 7 mph
                    in the morning becoming south 2 to 5 mph around
                    1300 hours.
Mixing height.......Inversion lifting around 1000 hours with mixing
                    height as high as 3500 ft AGL in the afternoon.
Transport winds.....East around 6 mph shifting to the south around
                    5 mph in the afternoon.
Ventilation Index...Low (158).

.THURSDAY NIGHT...

Sky/weather.........Mostly cloudy.
CWR.................0 percent.
Chance of lightning.0 percent.
Min temperature.....40-48.
Max humidity........Kaiser Canyon: 60-70 percent.
                    Modrite: 70-85 percent
Wind (20 ft)........Variable 2 to 4 mph after 2000 hours.
Mixing height.......Falling to the surface around 1800 hours.
Transport winds.....Light winds becoming northeast around 5 mph
                    overnight.
Ventilation Index...Low (41).

.FRIDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....68-78.
Min humidity........30-38 percent.
Wind (20 ft)........Variable 2 to 4 mph in the morning becoming
                    southwest 3 to 6 mph after 1300 hours.
Mixing height.......Inversion lifting around 1000 hours with mixing
                    height as high as 4000 ft AGL in the afternoon.
Transport winds.....East around 5 mph shifting to the west around 7
                    mph in the afternoon.
Ventilation Index...Moderate (235).

$$
Forecaster...VT
Requested by...Ryan Scharnhorst
Type of request...WILDFIRE
.TAG 2622854.0/OTX
.DELDT 09/30/26
.FormatterVersion 2.0.0
.EMAIL ryan_scharnhorst@firenet.gov