452
FNUS76 KOTX 260045
FWSOTX
SPOT FORECAST FOR PTARMAGIN...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
545 PM PDT SAT JUL 25 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON JULY 26.
DISCUSSION
AREA WILL SEE SLIGHTLY CALMER CONDITIONS FOR SUNDAY. WINDS SUNDAY
WILL REMAIN BREEZY WITH SLIGHTLY HIGHER HUMIDITY VALUES. WINDS
WILL BE STRONGEST BETWEEN THE THE 1200-2000 HOURS. MONDAY WILL
HAVE CALMER WINDS WITH SIMILAR TEMPERATURE AND LOWER HUMIDITY.
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.........MOSTLY SUNNY. HAZE AND AREAS OF SMOKE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....AROUND 63-68.
MIN HUMIDITY........52-57 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 4 TO 8 MPH. BECOMING 8 TO 12
MPH WITH GUSTS UP TO 22 MPH AFTER 1000.
MIXING HEIGHT.......2000 FT AGL INCREASING TO 5000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 18 TO 26 MPH.
VENTILATION INDEX...HIGH (557) INCREASING TO VERY HIGH (892) IN THE
AFTERNOON.
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MIN TEMPERATURE.....AROUND 42-46.
MAX HUMIDITY........83-88 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 12 MPH WITH GUSTS TO AROUND
20 MPH THROUGH 2000. BECOMING 5 TO 10 MPH AFTER
0100.
MIXING HEIGHT.......3500 FT AGL FALLING TO NEAR SURFACE.
TRANSPORT WINDS.....SOUTHWEST 8 TO 12 MPH.
VENTILATION INDEX...MODERATE (438) DECREASING TO LOW (43)
OVERNIGHT.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....AROUND 65-70.
MIN HUMIDITY........41-46 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL INCREASING TO 6500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 9 TO 14 MPH.
VENTILATION INDEX...MODERATE (470) INCREASING TO VERY HIGH (828) IN
THE AFTERNOON.
FORECASTER...JCLEV
REQUESTED BY...AANA KULAAS
TYPE OF REQUEST...WILDFIRE
.TAG 2618247.0/OTX
.DELDT 07/25/26
.FORMATTERVERSION 2.0.0
.EMAIL AANA_KULAAS@FIRENET.GOV,KEITH_KISTLER@FIRENET.GOV
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