171
FNUS76 KOTX 130131
FWSOTX
SPOT FORECAST FOR ALAPOWA FIRE...BCFD 2
NATIONAL WEATHER SERVICE SPOKANE WA
631 PM PDT WED AUG 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON AUGUST 13.
DISCUSSION
DRY AND LOW-END BREEZY CONDITIONS FORECAST FOR THURSDAY, WITH THE
STRONGER WINDS FORECAST TO BE IN THE MORNING TO EARLY AFTERNOON,
BEFORE SLACKENING. A BOUNDARY SOUTHEAST OF THE FIRE WILL
HELP FOCUS SOME MOISTURE THURSDAY NIGHT INTO FRIDAY, WITH A FEW
MORE CLOUDS AND A SLIGHT CHANCE FOR SHOWERS AND THUNDERSTORMS
FRIDAY AFTERNOON. CONFIDENCE IS LOW, WITH THE BETTER OVERALL RISK
OF PRECIPITATION SOUTH OF THE FIRE. GUSTY OUTFLOW WINDS MAY
PROPAGATE AWAY FROM ANY STORMS ON FRIDAY AND PUSH BY, EVEN IF THEY
DO NOT DIRECTLY IMPACT THE FIRE. OTHERWISE WINDS WILL BE LIGHT
FRIDAY IN THE MORNING AND PICK UP SLIGHTLY IN THE 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).
***************************************************************
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE AND HAZE.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....88-92.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........WEST-NORTH 6 TO 10 MPH WITH GUSTS TO 18 MPH
IN THE MORNING...DECREASING TO 4 TO 8 MPH
WITH GUSTS TO 15 MPH AFTER 1400.
MIXING HEIGHT.......4000 FT AGL INCREASING TO 7500 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 7 TO 9 MPH.
VENTILATION INDEX...MODERATE (322) INCREASING TO HIGH (614) IN THE
AFTERNOON.
THURSDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....AROUND 61.
MAX HUMIDITY........67-72 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 4 TO 7 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......7000 FT AGL FALLING TO 500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPH IN THE EVENING BECOMING
LIGHT.
VENTILATION INDEX...HIGH (613) DECREASING TO LOW (19) OVERNIGHT.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. A 15 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH AROUND 4 TO 8 MPH
IN THE AFTERNOON WITH GUSTS TO 12 MPH.
MIXING HEIGHT.......4000 FT AGL INCREASING TO 9000 FT AGL IN THE
AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST AROUND 7 MPH IN THE
AFTERNOON.
VENTILATION INDEX...LOW (156) INCREASING TO HIGH (670) IN THE
AFTERNOON.
FORECASTER...MSC
REQUESTED BY...CT127
TYPE OF REQUEST...WILDFIRE
.TAG 2619503.2/OTX
.DELDT 08/12/26
.FORMATTERVERSION 2.0.0
.EMAIL MMEYER@BENTON2.ORG
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