666
FNUS76 KOTX 212236
FWSOTX
SPOT FORECAST FOR SWIMPTKIN...WA-CAC
NATIONAL WEATHER SERVICE SPOKANE WA
336 PM PDT WED OCT 21 2026
FORECAST IS BASED ON IGNITION TIME OF 1600 PDT ON OCTOBER 21.
DISCUSSION
EXPECT WARM AND DRY CONDITIONS TODAY INTO EARLY THURSDAY. SLIGHT
CHANCES OF SHOWERS WILL DEVELOP FOR THURSDAY AFTERNOON AND
EVENING, FOLLOWED BY COOLER AND WINDIER WEATHER FOR LATE THURSDAY
NIGHT AND FRIDAY.
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).
***************************************************************
REST OF TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........LIGHT, PRIMARILY UPSLOPE/UPVALLEY, WINDS 3
TO 6 MPH.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 7 MPH.
VENTILATION INDEX...LOW (141).
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........60 TO 70 PERCENT.
WIND (20 FT)........LIGHT, PRIMARILY DOWNSLOPE/DOWNVALLEY,
WINDS UP TO 4 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 6 TO 7 MPH.
VENTILATION INDEX...LOW (39).
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY EARLY, WITH INCREASING CLOUDS IN
THE AFTERNOON. 10% CHANCE OF RAIN SHOWERS IN
THE LATE AFTERNOON.
CWR.................2 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........NEAR 40 PERCENT.
WIND (20 FT)........LIGHT, PRIMARILY UPSLOPE/UPVALLEY, WINDS 3
TO 6 MPH.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE SOUTH
AROUND 6 MPH IN THE AFTERNOON.
VENTILATION INDEX...LOW (109).
FORECASTER...KD
REQUESTED BY...KEVIN MANUEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2624281.0/OTX
.DELDT 10/21/26
.FORMATTERVERSION 2.0.0
.EMAIL TWILA.LEITH-MONAGHAN.MTF@COLVILLETRIBES.COM
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