455
FNUS76 KOTX 251700
FWSOTX
SPOT FORECAST FOR RAILROAD...WA SE TYPE 3 IMT - TEAM 1
NATIONAL WEATHER SERVICE SPOKANE WA
1000 AM PDT SAT JUL 25 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON JULY 26.
..RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING
DISCUSSION
WEATHER WILL REMAIN WARM AND DRY SUNDAY AND MONDAY. WINDS WILL BE
LIGHTER COMPARED TO SATURDAY BOTH DAYS WITH GUSTS UP TO 20 MPH.
WINDS WILL FOLLOW A DIURNAL DIRECTION OF SOUTH-SOUTHWEST IN THE
AFTERNOON AND EARLY EVENING, SHIFTING TO THE WEST-NORTHWEST AT
NIGHT THROUGH THE MIDDLE OF THE MORNING. TUESDAY WILL BE THE NEXT
DAY TO MONITOR FOR CRITICAL FIRE WEATHER WITH WINDS INCREASING TO
15 TO 20 MPH WITH GUSTS UP TO 30 MPH TUESDAY AFTERNOON AND
EVENING.
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).
***************************************************************
SUNDAY
SKY/WEATHER.........HAZE AND PATCHY SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....82-87.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........SOUTH-SOUTHWEST WINDS 4 TO 6 MPH INCREASING TO
8 TO 13 MPH WITH GUSTS TO AROUND 20 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......MORNING INVERSION LIFTING AROUND 0900 HOURS, WITH
A MIXING HEIGHT OF 3000 FT AGL INCREASING TO 4000
FT AGL BY 1100 HOURS. MIXING HEIGHT AS HIGH AS 8000
FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 9 TO 12 MPH.
VENTILATION INDEX...MODERATE (304) INCREASING TO VERY HIGH (1250)
IN THE AFTERNOON.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....60-65.
MAX HUMIDITY........54 PERCENT.
WIND (20 FT)........WINDS SHIFTING TO THE WEST-NORTHWEST AROUND 1900 HOURS
AND INCREASING TO 12 TO 16 MPH WITH GUSTS TO AROUND 25
MPH.
MIXING HEIGHT.......8000 FT AGL FALLING TO NEAR SURFACE AROUND 2000 HOURS.
TRANSPORT WINDS.....WEST-NORTHWEST 17 TO 20 MPH.
VENTILATION INDEX...VERY HIGH (1062) DECREASING TO LOW (78)
OVERNIGHT.
MONDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....84-89.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........WEST WINDS 8 TO 12 MPH WITH GUSTS TO AROUND 19
MPH SHIFTING TO THE SOUTH-SOUTHWEST 6 TO 8 MPH BY
THE MID-MORNING.
MIXING HEIGHT.......4000 FT AGL IN THE LATE MORNING INCREASING TO 9000
FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 11 TO 13 MPH.
VENTILATION INDEX...MODERATE (412) INCREASING TO VERY HIGH (979) IN
THE AFTERNOON.
FORECASTER...VT
REQUESTED BY...RYAN SCHARNHORST
TYPE OF REQUEST...WILDFIRE
.TAG 2618207.0/OTX
.DELDT 07/25/26
.FORMATTERVERSION 2.0.0
.EMAIL RYAN.SCHARNHORST@PULLMAN-WA.GOV
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