306
FNUS76 KOTX 250341
FWSOTX
SPOT FORECAST FOR BIG APPLE...DNR
NATIONAL WEATHER SERVICE SPOKANE WA
841 PM PDT WED JUN 24 2026
FORECAST IS BASED ON FORECAST START TIME OF 2100 PDT ON JUNE 24.
..RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM PDT THURSDAY
DISCUSSION
A WEAKENING OUTFLOW BOUNDARY IS PASSING OVER THE FIRE AS OF 2030 PDT
DELIVERING NORTHWEST WINDS WITH OCCASIONAL GUSTS TO 18 MPH. THIS WILL
BE SHORT-LIVED WITH WINDS EXPECTED TO DECREASE AND BECOME VARIABLE
OVERNIGHT. STRONG, PERSISTENT SOUTHWEST WINDS DEVELOP THURSDAY MORNING
AFTER 1100 PDT AND REMAIN STRONG THROUGH THE EVENING. THERE IS A 40%
CHANCE FOR A SHORT PERIOD OF WESTERLY WINDS THURSDAY EVENING 2100-2300 PDT
BEFORE SHIFTING BACK TO THE SOUTHWEST AFTER MIDNIGHT. WINDS WILL REMAIN
ELEVATED THROUGH THE NIGHT. A COOLER WEATHER SYSTEM MOVES IN FRIDAY WITH
HIGHER HUMIDITY, BREEZY WINDS, AND MODERATE CHANCES FOR SHOWERS.
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).
***************************************************************
REST OF TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY...BECOMING PARTLY CLOUDY.
15% CHANCE OF RAIN SHOWERS OVERNIGHT WITH
LITTLE TO NO RAINFALL.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MIN TEMPERATURE.....59.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........NORTHWEST 10 MPH GUSTS 15 MPH THROUGH 2130 PDT
BECOMING SOUTHWEST 6 TO 10 MPH. WINDS BECOMING
VARIABLE 2 TO 5 MPH AFTER 2300 PDT.
MIXING HEIGHT.......NEAR SURFACE.
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH BECOMING SOUTHEAST 4 MPH.
VENTILATION INDEX...LOW (38).
THURSDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....85.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 11 MPH IN THE MORNING INCREASING
SOUTHWEST 10 TO 16 MPH GUSTS UP TO 25 MPH
AFTER 1200 PDT.
MIXING HEIGHT.......8000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH.
VENTILATION INDEX...VERY HIGH (975) INCREASING TO VERY HIGH (1363)
IN THE AFTERNOON.
THURSDAY NIGHT
SKY/WEATHER.........CLOUDY. 30% CHANCE OF RAIN SHOWERS THROUGH
THE NIGHT.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....51.
MAX HUMIDITY........45-50 PERCENT THROUGH THE NIGHT INCREASING NEAR
65 PERCENT NEAR SUNRISE.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 18 MPH.
MIXING HEIGHT.......7500 FT AGL FALLING TO 800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 17 MPH.
VENTILATION INDEX...VERY HIGH (1022) DECREASING TO MODERATE (260)
OVERNIGHT.
FRIDAY
SKY/WEATHER.........CLOUDY. 60% CHANCE FOR RAIN SHOWERS THROUGH THE DAY.
SLIGHT CHANCE FOR THUNDERSTORMS IN THE AFTERNOON.
CWR.................30 PERCENT.
CHANCE OF LIGHTNING.10 PERCENT.
MAX TEMPERATURE.....70.
MIN HUMIDITY........51-56 PERCENT.
WIND (20 FT)........SOUTH TO SOUTHWEST WINDS 9 TO 12 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 16 MPH.
VENTILATION INDEX...HIGH (594) INCREASING TO VERY HIGH (851) IN THE
AFTERNOON.
FORECASTER...SB
REQUESTED BY...KEEGAN HOSCH
TYPE OF REQUEST...WILDFIRE
.TAG 2616174.0/OTX
.DELDT 06/24/26
.FORMATTERVERSION 2.0.0
.EMAIL WANEC@FIRENET.GOV,BRENDON.MAGALLANES@DNR.WA.GOV
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