310
FNUS76 KOTX 231742
FWSOTX
SPOT FORECAST FOR LITTLE GIANT FIRE ENTIAT RD...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
1042 AM PDT FRI OCT 23 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON OCTOBER 24.
DISCUSSION
OVER THE WEEKEND A LOW PRESSURE SYSTEM WILL APPROACH BUT
UNCERTAINTY REMAINS IF ANY PRECIPITATION WILL OCCUR OVER THE FIRE
AREA. THERE IS A 15-30 PERCENT CHANCE (DOWN FROM 40% FROM THE LAST
FORECAST) OF RAIN AND MOUNTAIN SNOW WITH SNOW LEVELS NEAR 4000 TO
5000 FEET SATURDAY NIGHT INTO SUNDAY.
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).
***************************************************************
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....36 AT 7000 FEET, 57 AT 2500 FEET.
MIN HUMIDITY........25-35 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING UPSLOPE/UPVALLEY 3 TO 7 MPH.
MIXING HEIGHT.......NEAR THE SURFACE THROUGH 1100 INCREASING TO 1500 FT
AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH IN THE MORNING SHIFTING TO
SOUTHEAST AROUND 5 MPH.
VENTILATION INDEX...LOW (123).
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. A 15 PERCENT CHANCE OF RAIN AND
MOUNTAIN SNOW. SNOW LEVEL 4000 FEET.
CWR.................3 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....31-37.
MAX HUMIDITY........50-60 PERCENT ON UPPER SLOPES AND RIDGETOPS...
75-90 PERCENT LOWER SLOPES AND VALLEY BOTTOMS.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 1 TO 4 MPH EXCEPT
SOUTH 3 TO 6 MPH ON RIDGETOPS.
MIXING HEIGHT.......NEAR THE SURFACE.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
VENTILATION INDEX...LOW (54).
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY. A 30 PERCENT CHANCE OF RAIN AND
MOUNTAIN SNOW. SNOW LEVEL 4000 FEET RISING TO
5000 FEET IN THE AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....33 AT 7000 FEET, 56 AT 2500 FEET.
MIN HUMIDITY........40-50 PERCENT.
WIND (20 FT)........SOUTHEAST/UPSLOPE/UPVALLEY 2 TO 5 MPH.
MIXING HEIGHT.......NEAR THE SURFACE THROUGH 1100 THEN INCREASING TO
2000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
VENTILATION INDEX...LOW (163).
FORECASTER...DB
REQUESTED BY...ROBERT WHITEHALL
TYPE OF REQUEST...WILDFIRE
.TAG 2624377.1/OTX
.DELDT 10/23/26
.FORMATTERVERSION 2.0.0
.EMAIL ROBERT.WHITEHALL@USDA.GOV
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