206
FNUS76 KOTX 282025
FWSOTX
SPOT FORECAST FOR GRANDE FIRE...NE WA IMT #1
NATIONAL WEATHER SERVICE SPOKANE WA
125 PM PDT THU AUG 28 2025
FORECAST IS BASED ON FORECAST START TIME OF 2000 PDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
TODAY WILL BE COOLER UNDER MOSTLY CLOUDY SKIES. CUMULUS BUILD UPS
THIS AFTERNOON MAY RESULT IN ISOLATED THUNDERSTORMS. A BETTER CHANCE
FOR THUNDERSTORMS COMES TOMORROW FROM 1100-1700. WINDS WILL BE MOSTLY
LIGHT EXCEPT FOR GUSTY AND ERRATIC WINDS NEAR THUNDERSTORMS. FRIDAY
BEGINS A WARMING AND DRYING PERIOD WITH DECLINING RELATIVE HUMIDITY
RECOVERIES.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING.
CWR.................20 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........71 PERCENT.
WIND (20 FT)........SOUTHWEST 3-5 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......DECREASING TO NEAR SURFACE AROUND 2000.
TRANSPORT WINDS.....SOUTHWEST 4 TO 7 MPH SHIFTING TO THE EAST
AROUND 2000.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY. CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER 1100 PDT. CHANCES OF THUNDERSTORMS WANING
AFTER 1700 PDT.
CWR.................10 PERCENT.
CHANCE OF LIGHTNING.25 PERCENT.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........SOUTHWEST 3-5 MPH. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
MIXING HEIGHT.......8500 FEET AGL WITH INVERSION BREAKING AROUND 0800.
TRANSPORT WINDS.....EAST 3 TO 5 MPH SHIFTING TO THE SOUTHWEST AROUND
1100.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING.
CWR.................10 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........63 PERCENT.
WIND (20 FT)........SOUTHWEST 3 TO 5 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......FALLING TO NEAR SURFACE AROUND 2000.
TRANSPORT WINDS.....SOUTHWEST 3 TO 5 MPH SHIFTING TO THE NORTHEAST
AROUND 2000.
FORECASTER...AS/SVH
REQUESTED BY...JESSICA WALSTON
TYPE OF REQUEST...WILDFIRE
.TAG 2520874.1/OTX
.DELDT 08/28/25
.FORMATTERVERSION 2.0.0
.EMAIL JESSICA.WALSTON@DNR.WA.GOV
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