853
FNUS76 KOTX 070502
FWSOTX
SPOT FORECAST FOR CHESTNUT 260190...CWICC
NATIONAL WEATHER SERVICE SPOKANE WA
1002 PM PDT SAT JUN 6 2026
FORECAST IS BASED ON FORECAST START TIME OF 0400 PDT ON JUNE 07.
DISCUSSION
SUNDAY WILL BE DRIER WITH BREEZY WEST TO SOUTHWEST WINDS THROUGH
THE EARLY EVENING. WINDS WILL PEAK LATE IN THE AFTERNOON INTO THE
EVENING WITH GUSTS UP TO 20 MPH. WINDS WILL DECREASE SUNDAY NIGHT
INTO EARLY MONDAY BEFORE INCREASING FROM THE SOUTH MONDAY
AFTERNOON. MOISTURE AND CLOUD COVER INCREASES MONDAY AHEAD OF AN
APPROACHING WEATHER SYSTEM. CHANCE OF WETTING RAIN CLIMBS TO
AROUND 60% LATE MONDAY AFTERNOON AND EVENING WITH PRECIP AMOUNTS
UP TO 0.20 INCHES.
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 (0400-0800)
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....42.
MAX HUMIDITY........63-67 PERCENT.
WIND (20 FT)........WEST TO SOUTHWEST WINDS 2 TO 6 MPH. RIDGE TOP WINDS
WEST TO SOUTHWEST 7 TO 10 MPH.
MIXING HEIGHT.......NEAR THE SURFACE.
TRANSPORT WINDS.....WEST AROUND 8 MPH.
VENTILATION INDEX...LOW (31).
SUNDAY
SKY/WEATHER.........SUNNY BECOMING MOSTLY SUNNY. FLAT CUMULUS
OVER THE MOUNTAINS.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....67.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........WEST TO SOUTHWEST WINDS 4 TO 8 MPH IN THE VALLEYS
AND WEST TO SOUTHWEST WINDS 7 TO 12 MPH ACROSS
RIDGE TOPS. GUSTS UP TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......INVERSION BREAKING AFTER 0800 WITH MIXING HEIGHT
AS HIGH AS 7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 9 TO 15 MPH.
VENTILATION INDEX...HIGH (574) INCREASING TO HIGH (799) IN THE
AFTERNOON.
SUNDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....45.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH IN THE EVENING
BECOMING VARIABLE 1 TO 4 MPH OVERNIGHT.
MIXING HEIGHT.......5000 FT AGL FALLING TO NEAR THE SURFACE AFTER
2000 HOURS.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
VENTILATION INDEX...HIGH (619) DECREASING TO LOW (27) OVERNIGHT.
MONDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.
20% CHANCE OF RAIN IN THE EARLY AFTERNOON
INCREASING TO 60% CHANCE IN THE EVENING.
CWR.................5 PERCENT IN THE MORNING AND EARLY AFTERNOON...
INCREASING TO 30 PERCENT IN THE LATE AFTERNOON
AND EVENING.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....66.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH IN THE MORNING BECOMING
SOUTH 6 TO 12 MPH IN THE AFTERNOON. GUSTS UP
TO 25 MPH IN THE AFTERNOON.
MIXING HEIGHT.......7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 7 TO 13 MPH.
VENTILATION INDEX...MODERATE (404) INCREASING TO HIGH (569) IN THE
AFTERNOON.
FORECASTER...VT
REQUESTED BY...JULIE WILSON
TYPE OF REQUEST...WILDFIRE
.TAG 2615104.0/OTX
.DELDT 06/06/26
.FORMATTERVERSION 2.0.0
.EMAIL WACWC@FIRENET.GOV
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