853
FNUS76 KOTX 272257
FWSOTX
SPOT FORECAST FOR POMAS...USFS
NATIONAL WEATHER SERVICE SPOKANE WA
357 PM PDT WED AUG 27 2025
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
...FLOOD WATCH FOR FLASH FLOODING FROM LATE THURSDAY MORNING THROUGH
THURSDAY EVENING...
A LOW PRESSURE SYSTEM WILL SLOWLY PUSH ACROSS THE THE AREA THURSDAY.
LIGHT TO MODERATE SHOWERS INTO EARLY THURSDAY MORNING WILL
TRANSITION TO SCATTERED SHOWERS AND THUNDERSTORMS BY 11 AM OR
NOON, AND CONTINUE INTO THE AFTERNOON. THUNDERSTORMS WILL BE
CAPABLE OF HEAVY RAINFALL RATES ALONG WITH PRODUCING GUSTY OUTFLOW
WINDS. HEAVY RAINFALL MAY RESULT FLASH FLOODING IN STEEP DRAINAGES
AND NEAR THE POMAS FIRE. FRIDAY WILL BE WARMER AND DRIER WITH THE
THREAT OF SHOWERS AND THUNDERSTORMS SHIFTING NORTH OF THE AREA.
THURSDAY
SKY/WEATHER.........90 PERCENT CLOUD COVER IN THE MORNING
DECREASING 60 PERCENT IN THE AFTERNOON.
60 PERCENT CHANCE OF SHOWERS THROUGH THE
MORNING AND AFTERNOON DECREASING IN THE
EVENING. A CHANCE OF THUNDERSTORMS IN THE
LATE MORNING AND AFTERNOON AFTER 1000 PDT.
THUNDERSTORMS WILL COME WITH HEAVY RAINFALL.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
CWR.................40 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT IN THE MORNING INCREASING TO
35 PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....VALLEYS (2000-3000 FT): 80-84.
MOUNTAINS (5000-6000 FT): 68-72.
MIN HUMIDITY........VALLEYS (2000-3000 FT): 51-57 PERCENT.
MOUNTAINS (5000-6000 FT): 58-63 PERCENT.
WIND (20 FT)........CHIWAWA RIVER BASIN: UPSLOPE/UPVALLEY 2 TO 5 MPH.
SHADY PASS: SOUTHEAST 2 TO 5 MPH.
POMAS CREEK: UPSLOPE/UPVALLEY 1 TO 3 MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 4 TO 7 MPH.
THURSDAY NIGHT
SKY/WEATHER.........50 PERCENT CLOUD COVER IN THE EVENING DECREASING
TO 20 PERCENT OVERNIGHT. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING THROUGH
2100 PDT.
CWR.................10 PERCENT.
CHANCE OF LIGHTNING.15 PERCENT.
MIN TEMPERATURE.....55-59.
MAX HUMIDITY........67-72 PERCENT.
WIND (20 FT)........CHIWAWA RIVER BASIN: DOWN VALLEY 1 TO 3 MPH.
SHADY PASS: SOUTHWEST 2 TO 5 MPH IN THE EVENING
SWITCHING NORTH-NORTHWEST AFTER 2200 PDT.
POMAS CREEK: DOWNSLOPE/DOWNVALLEY 1 TO 3 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 4 TO 7 MPH IN THE EVENING SWITCHING
NORTH AROUND 3 TO 6 MPH OVERNIGHT.
FRIDAY
SKY/WEATHER.........30 PERCENT CLOUD COVER. BUILDING CUMULUS IN
THE AFTERNOON MAINLY NORTH OF THE AREA.
CWR.................5 PERCENT.
CHANCE OF LIGHTNING.5 PERCENT.
MAX TEMPERATURE.....VALLEYS (2000-3000 FT): 86-90.
MOUNTAINS (5000-6000 FT): 74-78.
MIN HUMIDITY........VALLEYS (2000-3000 FT): 31-37 PERCENT.
MOUNTAINS (5000-6000 FT): 38-43 PERCENT.
WIND (20 FT)........CHIWAWA RIVER BASIN: UPSLOPE/UPVALLEY 2 TO 5 MPH.
SHADY PASS: SOUTHEAST 2 TO 5 MPH.
POMAS CREEK: UPSLOPE/UPVALLEY 2 TO 5 MPH.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....EAST 4 TO 7 MPH.
FORECASTER...SVH
REQUESTED BY...MARY GIDDINGS
TYPE OF REQUEST...WILDFIRE
.TAG 2520648.2/OTX
.DELDT 08/27/25
.FORMATTERVERSION 2.0.0
.EMAIL MARY.GIDDINGS@USDA.GOV
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