025
FNUS76 KOTX 241729
FWSOTX
SPOT FORECAST FOR KELLER RIDGE BLOCK 804...WA-CAC
NATIONAL WEATHER SERVICE SPOKANE WA
1029 AM PDT SAT OCT 24 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON OCTOBER 24.
DISCUSSION
CLOUDS WILL INCREASE THIS WEEKEND WITH LOW PRESSURE MOVING INTO
THE AREA. THERE IS A 50 PERCENT CHANCE OF RAIN SHOWERS ON MONDAY.
RAIN ACCUMULATIONS WILL BE HIGHLY VARIABLE WITH A 10 PERCENT CHANCE
OF WETTING RAINS (>0.10 INCHES). A 10-20 PERCENT CHANCE OF SHOWERS
WILL CONTINUE THROUGH TUESDAY, AND A BETTER CHANCE FOR WETTING
RAINS (50 PERCENT CHANCE) ON WEDNESDAY. NORTHEAST WINDS ON SUNDAY
INTO SUNDAY NIGHT THEN SWITCHING BACK TO THE SOUTH MONDAY
AFTERNOON.
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.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....51.
MIN HUMIDITY........40-44 PERCENT (ACHIEVED BY 1300).
WIND (20 FT)........SOUTH WINDS 3 TO 6 MPH.
MIXING HEIGHT.......INVERSION LIFTING AROUND 1130. MIXING HEIGHT
INCREASING TO 1500 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTH-SOUTHEAST AROUND 7 MPH.
VENTILATION INDEX...LOW (200).
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....37.
MAX HUMIDITY........57-61 PERCENT.
WIND (20 FT)........SOUTH WINDS 2 TO 5 MPH IN THE EVENING
SWITCHING NORTHEAST 1 TO 4 MPH AFTER
2000.
MIXING HEIGHT.......DECREASING TO NEAR SURFACE AFTER 1900.
TRANSPORT WINDS.....NORTHEAST AROUND 4 MPH.
VENTILATION INDEX...LOW (40).
SUNDAY
SKY/WEATHER.........CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....54.
MIN HUMIDITY........40-44 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 1 TO 4 MPH IN THE MORNING
BECOMING EAST-NORTHEAST 4 TO 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......INVERSION LIFTING AROUND 1130. MIXING HEIGHT
INCREASING TO 1700 FT AGL BY 1330.
TRANSPORT WINDS.....EAST 10 TO 13 MPH.
VENTILATION INDEX...MODERATE (300).
FORECASTER...SVH
REQUESTED BY...DENNIS RANALLA
TYPE OF REQUEST...PRESCRIBED
.TAG 2624478.0/OTX
.DELDT 10/24/26
.FORMATTERVERSION 2.0.0
.EMAIL TWILA.LEITH-MONAGHAN.MTF@COLVILLETRIBES.COM
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