219
FNUS76 KOTX 241915
FWSOTX
SPOT FORECAST FOR RAILROAD...SE WA TYPE 3 IMT - TEAM 1
NATIONAL WEATHER SERVICE SPOKANE WA
1215 PM PDT FRI JUL 24 2026
FORECAST IS BASED ON FORECAST START TIME OF 0000 PDT ON JULY 25.
..RED FLAG WARNING IN EFFECT FROM 11 AM TO 10 PM PDT SATURDAY
DISCUSSION
***GUSTY SOUTHWEST WINDS UP TO 40 MPH SATURDAY AFTERNOON***
A DRY COLD FRONT WILL MOVE THROUGH SATURDAY, WHICH WILL ALLOW
TEMPERATURES TO DECREASE BY A FEW DEGREES BUT WILL INCREASE WINDS
OUT OF THE SOUTHWEST AND BRING CRITICAL FIRE WEATHER CONDITIONS TO
THE FIRE AREA. BY MIDDAY SATURDAY, WIND GUSTS ARE EXPECTED TO
REACH AROUND 30 TO 40 MPH. SUNDAY REMAINS WARM AND BREEZY (BUT MUCH
LIGHTER WINDS THAN SATURDAY).
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).
***************************************************************
TONIGHT
SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....67.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25
MPH IN THE EVENING. WIND SPEEDS DECREASING
TO 8 TO 12 MPH BY 0200 HOURS.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
VENTILATION INDEX...LOW (49).
SATURDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....89.
MIN HUMIDITY........14-18 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 12 MPH INCREASING TO 20 TO
30 MPH BY 1300 WITH GUSTS TO AROUND 30 TO 40 MPH IN THE
AFTERNOON. WINDS SHIFTING WESTERLY AROUND 1800 HOURS.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 11 MPH INCREASING TO SOUTHWEST
AROUND 26 TO 36 MPH IN THE AFTERNOON.
VENTILATION INDEX...HIGH (617) INCREASING TO VERY HIGH (2152) IN
THE AFTERNOON.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....59.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........WEST WINDS 13 TO 21 MPH WITH GUSTS TO AROUND 30
MPH DECREASING TO 6 TO 10 MPH WITH GUSTS TO
AROUND 16 MPH AFTER 2200 HOURS.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....WEST AROUND 20 MPH DECREASING TO AROUND 10 MPH
OVERNIGHT.
VENTILATION INDEX...VERY HIGH (1486) DECREASING TO LOW (52)
OVERNIGHT.
SUNDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....88.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 15 MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 11 MPH.
VENTILATION INDEX...MODERATE (325) INCREASING TO VERY HIGH (1101)
IN THE AFTERNOON.
FORECASTER...DB
REQUESTED BY...RYAN SCHARNHORST
TYPE OF REQUEST...WILDFIRE
.TAG 2618150.0/OTX
.DELDT 07/24/26
.FORMATTERVERSION 2.0.0
.EMAIL RYAN.SCHARNHORST@PULLMAN-WA.GOV
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