735
FNUS76 KOTX 131402
FWSOTX
SPOT FORECAST FOR SNAKE RIVER FIRE...WHITMAN CO. FIRE DIST. 14
NATIONAL WEATHER SERVICE SPOKANE WA
702 AM PDT SAT JUN 13 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 PDT ON JUNE 13.
DISCUSSION
..STRONG COLD FRONT PASSAGE ON TUESDAY
A WARMING AND DRYING TREND THROUGH THE WEEKEND WITH TEMPERATURES
PEAKING IN THE UPPER 80S TO NEAR 90 SUNDAY INTO TUESDAY. OVERNIGHT
INVERSION SETTING UP AROUND 2000 SATURDAY AND BREAKING 0700
SUNDAY. A DRY COLD FRONT TUESDAY WILL BRING GUSTY WESTERLY WINDS
TO THE REGION. THE COMBINATION OF WARM, DRY, AND GUSTY WINDS WILL
BRING THE POTENTIAL FOR CRITICAL FIRE WEATHER CONDITIONS.
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.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........LIGHT WINDS 3 TO 6 MPH BECOMING NORTHEAST 6
TO 10 MPH WITH GUSTS TO 15 AFTER 1300.
MIXING HEIGHT.......4500 FT AGL INCREASING TO 8000 FT AGL IN THE
1600.
TRANSPORT WINDS.....NORTHEAST 8 TO 14 MPH.
VENTILATION INDEX...MODERATE (307) INCREASING TO HIGH (713) IN THE
AFTERNOON.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........55-60 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 10 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......7000 FT AGL FALLING TO NEAR SURFACE AROUND 2000.
TRANSPORT WINDS.....NORTHEAST 7 TO 11 MPH.
VENTILATION INDEX...HIGH (747) DECREASING TO LOW (32) OVERNIGHT.
SUNDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........LIGHT SOUTH WINDS IN THE MORNING BECOMING NORTH
4 TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 7000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 7 TO 9 MPH.
VENTILATION INDEX...MODERATE (210) INCREASING TO HIGH (507) IN THE
AFTERNOON.
FORECASTER...JCLEV
REQUESTED BY...RYAN SCHARNHORST
TYPE OF REQUEST...WILDFIRE
.TAG 2615440.0/OTX
.DELDT 06/13/26
.FORMATTERVERSION 2.0.0
.EMAIL RYAN.SCHARNHORST@PULLMAN-WA.GOV
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