376
FNUS76 KOTX 021304
FWSOTX
SPOT FORECAST FOR GNA ANNIE HANDPILE...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
604 AM PDT FRI OCT 2 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 02.
DISCUSSION
A WEAK WEATHER DISTURBANCE TODAY WILL BRING SOUTHERLY WINDS
THROUGH MID AFTERNOON THEN SHIFT NORTHERLY LATE AND OVERNIGHT.
SEASONABLY WARM AND REMAINING DRY INTO THE WEEKEND.
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.........MOSTLY CLOUDY EARLY IN THE MORNING. CLOUDS
DECREASE AFTER 0800 BECOMING MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....62.
MIN HUMIDITY........41-45 PERCENT.
WIND (20 FT)........EAST WINDS 1 TO 4 MPH IN THE MORNING BECOMING
BECOMING SOUTH 2 TO 5 MPH AFTER 1000. WINDS
SWITCH WEST-NORTHWEST 4 TO 7 MPH AFTER 1500.
MIXING HEIGHT.......INVERSION LIFTS AROUND 1130. MIXING HEIGHT
INCREASING TO 3000 FT AGL BETWEEN 1500 AND
1800 HOURS.
TRANSPORT WINDS.....EAST AROUND 4 MPH IN THE MORNING BECOMING
SOUTHWEST 6 TO 9 MPH IN THE AFTERNOON.
VENTILATION INDEX...MODERATE (242) INCREASING TO MODERATE (470) IN
THE AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....41.
MAX HUMIDITY........83-87 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 3 TO 6 MPH IN THE EVENING
BECOMING NORTHEAST WINDS UP TO 3 MPH AFTER
2100.
MIXING HEIGHT.......DECREASING TO 800 FT AGL AFTER 2000.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
VENTILATION INDEX...LOW (161).
SATURDAY
SKY/WEATHER.........PARTLY SUNNY WITH HIGH CLOUDS IN THE MORNING
THEN CLEARING WITH MOSTLY SUNNY SKIES IN THE
AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....65.
MIN HUMIDITY........38-42 PERCENT.
WIND (20 FT)........EAST WINDS 2 TO 5 MPH.
MIXING HEIGHT.......INVERSION LIFTS AROUND 1130. MIXING HEIGHT
INCREASING TO 2800 FT AGL BETWEEN 1500 AND
1800 HOURS.
TRANSPORT WINDS.....EAST-NORTHEAST AROUND 4 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST AROUND 6 IN THE
AFTERNOON.
VENTILATION INDEX...MODERATE (274).
FORECASTER...SVH
REQUESTED BY...TAYLOR ORTEG
TYPE OF REQUEST...PRESCRIBED
.TAG 2622683.4/OTX
.DELDT 10/02/26
.FORMATTERVERSION 2.0.0
.EMAIL TAYLOR.ORTEG@USDA.GOV
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