115
FNUS76 KOTX 061645
FWSOTX
SPOT FORECAST FOR WILMONT HFR...WA-CAC
NATIONAL WEATHER SERVICE SPOKANE WA
945 AM PDT WED MAY 6 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON MAY 06.
DISCUSSION
WEAK COLD FRONT PASSAGE BETWEEN 1600 AND 1800 LATE THIS AFTERNOON.
WINDS WILL SEE A GRADUAL INCREASE FROM THE SOUTH AND SOUTHWEST IN
THE AFTERNOON AND THEN SHIFT NORTHWEST WITH COLD FRONT. SHOWERS
AND THUNDERSTORMS WILL DEVELOP NORTHEAST OF THE BURN PROJECT
AFTER 1500 PDT. KEEP AND EYE OUT FOR OUTFLOW WINDS THAT COULD
BRING A NORTH TO NORTHEAST WIND SHIFT.
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.........SUNNY THEN BECOMING PARTLY SUNNY. BUILDING
CUMULUS CLOUDS TO THE NORTH AND NORTHEAST IN
THE AFTERNOON. SHOWERS AND THUNDERSTORMS
NORTHEAST OF THE BURN AFTER 1500 PDT.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....78.
MIN HUMIDITY........27-31 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 8 MPH THROUGH MID AFTERNOON.
WINDS SHIFTING WEST 6 TO 9 MPH AFTER 1700 PDT.
GUSTS UP TO 14 TO 17 MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 6000 FT AGL BETWEEN
1400 AND 1900 PDT.
TRANSPORT WINDS.....SOUTHWEST 9 TO 13 MPH.
VENTILATION INDEX...LOW (159) INCREASING TO VERY HIGH (947) IN
THE AFTERNOON.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING WITH SHOWERS
AND THUNDERSTORMS NORTHEAST OF THE BURN
THROUGH 1900 PDT THEN CLEARING.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....50.
MAX HUMIDITY........55-59 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 10 MPH BECOMING NORTHWEST 2 TO
5 MPH AFTER 2200 PDT. GUSTS UP TO 20 MPH IN THE
EVENING.
MIXING HEIGHT.......4500 FT AGL FALLING NEAR SURFACE AFTER 2100 PDT.
TRANSPORT WINDS.....WEST 9 TO 13 MPH IN THE EVENING BECOMING
NORTHWEST AROUND 4 MPH AFTER 2200 PDT.
VENTILATION INDEX...HIGH (710) FALLING TO LOW (12) OVERNIGHT.
THURSDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....74.
MIN HUMIDITY........25-29 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 1 TO 3 MPH EARLY IN THE MORNING
BECOMING UPSLOPE 3 TO 6 MPH AFTER 0600 PDT.
WINDS THEN BECOMING WEST-SOUTHWEST 5 TO 8 MPH
WITH GUSTS UP TO 14 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INCREASING TO 6000 FT AGL BY 1400 PDT.
TRANSPORT WINDS.....SOUTHWEST AROUND 8 MPH.
VENTILATION INDEX...HIGH (716).
FORECASTER...SVH
REQUESTED BY...DENNIS RANALLA
TYPE OF REQUEST...PRESCRIBED
.TAG 2612673.2/OTX
.DELDT 05/06/26
.FORMATTERVERSION 2.0.0
.EMAIL TWILA.LEITH-MONAGHAN.MTF@COLVILLETRIBES.COM
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