FNUS76 KOTX 231221
FWSOTX

Spot Forecast for Caribou...IDCDC
National Weather Service Spokane WA
521 AM PDT Sun Aug 23 2026

Forecast is based on forecast start time of 0600 PDT on August 23. 
...RED FLAG WARNING IN EFFECT UNTIL 11 AM PDT THIS MORNING...

.DISCUSSION...

Sunday will be much cooler under mostly cloudy skies with high
relative humidity through the day. A warming and drying trend 
commences Monday and Tuesday with lighter, terrain driven 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). 
***************************************************************

.TODAY...

Sky/weather.........Partly cloudy. A 30 percent chance of showers
                    and a 20 percent chance of thunderstorms mainly 
                    through 0800, and then again 1500 to 1800 PDT. 
CWR.................10 percent. 
Chance of lightning.20 percent. 
Max temperature.....Around 63. 
Min humidity........46 percent. 
Wind (20 ft)........Southwest 8 to 12 mph with gusts to around 20 
                    mph. 
Mixing height.......1000 ft AGL through 0900 increasing to 6500 ft 
                    AGL in the afternoon. 
Transport winds.....Southwest 16 to 20 mph. 
Ventilation Index...High (636) increasing to very high (1099) in 
                    the afternoon. 

.TONIGHT...

Sky/weather.........Mostly clear. 
CWR.................0 percent. 
Chance of lightning.5 percent. 
Min temperature.....Around 50. 
Max humidity........72 percent. 
Wind (20 ft)........West winds 5 to 9 mph through 2000 then 
                    downslope/downvalley 1 to 4 mph. 
Mixing height.......5000 ft AGL falling to 500 ft AGL. 
Transport winds.....West 6 to 12 mph. 
Ventilation Index...High (724) decreasing to low (33) overnight. 

.MONDAY...

Sky/weather.........Sunny. 
CWR.................0 percent. 
Chance of lightning.0 percent. 
Max temperature.....Around 69. 
Min humidity........34 percent. 
Wind (20 ft)........Downslope/downvalley 1 to 3 mph through 0900
                    then upslope/upvalley 2 to 5 mph. 
Mixing height.......Near surface through 0900 increasing to 5500 ft 
                    AGL in the afternoon. 
Transport winds.....Northeast around 5 mph shifting to the 
                    southwest around 7 mph in the afternoon. 
Ventilation Index...Low (137) increasing to high (527) in the 
                    afternoon. 

$$
Forecaster...JW
Requested by...IDCDC
Type of request...WILDFIRE
.TAG 2620288.0/OTX
.DELDT 08/23/26
.FormatterVersion 2.0.0
.EMAIL idcdc@firenet.gov