149
FNUS76 KOTX 260148
FWSOTX
SPOT FORECAST FOR PEARL HILL...BLM
NATIONAL WEATHER SERVICE SPOKANE WA
648 PM PDT SAT JUL 25 2026
FORECAST IS BASED ON FORECAST START TIME OF 1900 PDT ON JULY 25.
..RED FLAG WARNING IN EFFECT UNTIL 10 PM PDT THIS EVENING
DISCUSSION
WINDS WILL CONTINUE INTO SATURDAY NIGHT BEFORE WEAKENING AROUND
2300. WARM, DRY PATTERN CONTINUES FOR THE PERIOD. WINDS WILL
GENERALLY START THE MORNING WEAK AND INCREASE THROUGH THE
AFTERNOON AND EVENING HOURS OUT OF THE SOUTH-SOUTHWEST.
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.........MOSTLY CLEAR. HAZE AND AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 54-59.
MAX HUMIDITY........68-73 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 18 MPH WITH GUSTS TO AROUND 28
MPH SHIFTING TO THE SOUTHWEST 5 TO 10 MPH AFTER
2300.
MIXING HEIGHT.......4000 FT AGL FALLING TO NEAR SURFACE AROUND 2100.
TRANSPORT WINDS.....WEST AROUND 18 MPH BECOMING SOUTHWEST AROUND 8
MPH OVERNIGHT.
VENTILATION INDEX...HIGH (722) DECREASING TO LOW (46) OVERNIGHT.
SUNDAY
SKY/WEATHER.........SUNNY. HAZE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 84-90.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........SOUTH WINDS 4 TO 8 MPH. BECOMING 10 TO 15 AFTER
1100 WITH GUSTS UP TO 26 MPH IN THE AFTERNOON.
MIXING HEIGHT.......5000 FT AGL INCREASING TO 9000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTH 7 TO 15 MPH.
VENTILATION INDEX...MODERATE (440) INCREASING TO VERY HIGH (1348)
IN THE AFTERNOON.
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 60-65.
MAX HUMIDITY........55-60 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 12 MPH. GUSTS UP TO 26 MPH
IN THE EVENING.
MIXING HEIGHT.......9000 FT AGL FALLING TO NEAR SURFACE.
TRANSPORT WINDS.....WEST 8 TO 14 MPH.
VENTILATION INDEX...VERY HIGH (1348) DECREASING TO LOW (41)
OVERNIGHT.
MONDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....84-90.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST 5 TO 9 MPH WITH GUSTS TO AROUND 18
MPH IN THE AFTERNOON.
MIXING HEIGHT.......5000 FT AGL INCREASING TO 10000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 7 TO 12 MPH.
VENTILATION INDEX...MODERATE (353) INCREASING TO VERY HIGH (1104)
IN THE AFTERNOON.
FORECASTER...JCLEV
REQUESTED BY...CWICC
TYPE OF REQUEST...WILDFIRE
.TAG 2618251.0/OTX
.DELDT 07/25/26
.FORMATTERVERSION 2.0.0
.EMAIL WACWC@FIRENET.GOV
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