162
FNUS76 KOTX 031238
FWSOTX
SPOT FORECAST FOR GNA ANNIE HANDPILE...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
538 AM PDT SAT OCT 3 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 03.
DISCUSSION
HIGH PRESSURE WILL PROMOTE WARM TEMPERATURES AND LIGHT WINDS
AT THE BURN PILES OVER THE WEEKEND. INVERSIONS WILL BE SLOW TO
LIFT WITH WEAK MIXING POTENTIAL.
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 SUNNY THEN BECOMING SUNNY. HIGH CIRRUS
CLOUDS IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....65.
MIN HUMIDITY........45-49 PERCENT.
WIND (20 FT)........EAST WINDS 2 TO 5 MPH IN THE MORNING BECOMING
UPSLOPE (OR NORTHWEST) AFTER 1100.
MIXING HEIGHT.......INVERSION LIFTING AROUND 1100. MIXING HEIGHT
INCREASING TO 2600 FT AGL BETWEEN 1500 AND
1800 HOURS.
TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
VENTILATION INDEX...MODERATE (211).
TONIGHT
SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....46.
MAX HUMIDITY........83-87 PERCENT.
WIND (20 FT)........NORTH WINDS 2 TO 5 MPH IN THE EVENING BECOMING
EAST 1900.
MIXING HEIGHT.......LOWERING TO NEAR SURFACE AFTER 1900.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...LOW (72).
SUNDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....69.
MIN HUMIDITY........36-40 PERCENT.
WIND (20 FT)........EAST-SOUTHEAST WINDS 2 TO 5 MPH IN THE MORNING
BECOMING WEST-NORTHWEST 3 TO 6 MPH AFTER 1200.
MIXING HEIGHT.......INVERSION LIFTING AROUND 1100. MIXING HEIGHT
INCREASING TO 3000 FT AGL BETWEEN 1500 AND
1800 HOURS.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH IN THE MORNING SHIFTING
TO THE SOUTHWEST AROUND 7 MPH IN THE AFTERNOON.
VENTILATION INDEX...MODERATE (275).
FORECASTER...SVH
REQUESTED BY...TAYLOR ORTEG
TYPE OF REQUEST...PRESCRIBED
.TAG 2622683.5/OTX
.DELDT 10/03/26
.FORMATTERVERSION 2.0.0
.EMAIL TAYLOR.ORTEG@USDA.GOV
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