080
FNUS76 KOTX 110101
FWSOTX
SPOT FORECAST FOR FALLS CREEK...WA-CAC
NATIONAL WEATHER SERVICE SPOKANE WA
601 PM PDT FRI JUL 10 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 PDT ON JULY 10.
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM PDT SATURDAY
DISCUSSION
WARM TO HOT, DRY CONDITIONS WILL CONTINUE AROUND THE FIRE
INTO THE WEEKEND. A DRY FRONT PUSHES TOWARD THE AREA SATURDAY,
LEADING TO INCREASED CLOUDS, BUT MORE IMPACTFUL WILL BE
INCREASING WINDS. ALONG WITH RELATIVE HUMIDITY VALUES DROPPING
TO THE UPPER TEENS TO LOW 20S, THIS WILL BRING ELEVATED TO
CRITICAL FIRE WEATHER CONDITIONS. WIND SUBSIDE INTO SATURDAY
NIGHT AFTER 2000-2200. WINDS INCREASE AGAIN SUNDAY AFTERNOON,
THOUGH NOT AS STRONG AS SATURDAY. RELATIVE HUMIDITY VALUES
WILL DROP AGAIN TO UPPER TEENS TO LOW 20S, SO ELEVATED FIRE
WEATHER CONDITIONS WILL CONTINUE SUNDAY TOO. HOT AND DRY
CONDITIONS CONTINUE INTO NEXT WEEK.
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).
***************************************************************
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........54 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 3 TO 7 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......8500 FT AGL FALLING TO 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 10 MPH.
VENTILATION INDEX...VERY HIGH (1095) DECREASING TO LOW (27)
OVERNIGHT.
SATURDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....84-87.
MIN HUMIDITY........19-22 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH IN THE MORNING...INCREASING
TO 9 TO 15 MPH WITH GUSTS TO 25 MPH AFTER 1200.
MIXING HEIGHT.......5500 FT AGL INCREASING TO 7500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 12 TO 21 MPH.
VENTILATION INDEX...VERY HIGH (822) INCREASING TO VERY HIGH (1495)
IN THE AFTERNOON.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 63.
MAX HUMIDITY........48 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 11 MPH WITH GUSTS TO AROUND
19 MPH IN THE EVENING BECOMING SOUTHWEST
3 TO 7 MPH AFTER 2200.
MIXING HEIGHT.......7000 FT AGL FALLING TO 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 12 MPH.
VENTILATION INDEX...VERY HIGH (1179) DECREASING TO LOW (37)
OVERNIGHT.
SUNDAY
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....81-84.
MIN HUMIDITY........18-21 PERCENT.
WIND (20 FT)........SOUTHWEST 2 TO 4 MPH IN THE MORNING...INCREASING
TO SOUTHWEST 5 TO 7 MPH WITH GUSTS TO 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL INCREASING TO 7000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 7 TO 11 MPH.
VENTILATION INDEX...MODERATE (301) INCREASING TO HIGH (751) IN THE
AFTERNOON.
FORECASTER...MSC
REQUESTED BY...IC RANALLA
TYPE OF REQUEST...WILDFIRE
.TAG 2617182.0/OTX
.DELDT 07/10/26
.FORMATTERVERSION 2.0.0
.EMAIL MIAH.BEARCUB.MTF@COLVILLETRIBES.COM
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