009
FNUS75 KGJT 121136
FWSGJT
SPOT FORECAST FOR RIO BLANCO...USFS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
536 AM MDT WED AUG 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON AUGUST 12.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
CHANCES OF WETTING RAIN INCREASES TODAY DUE TO ELEVATED
ATMOSPHERIC MOISTURE. WETTING RAIN IS EVEN MORE LIKELY TOMORROW
AND FRIDAY. PRIMARY CONCERNS WITH SHOWERS AND THUNDERSTORMS ARE
NON-DIURNAL OUTFLOW WIND GUSTS POTENTIALLY IN EXCESS OF 35 MPH,
PERIODS OF HEAVY RAINFALL, AND LIGHTNING. HEAVY RAINFALL COULD
CREATE LOCALIZED FLASH FLOODING AND DEBRIS FLOW CONCERNS.
PRECIPITATION LOOKS TO BECOME LESS LIKELY DURING THE WEEKEND AS
MOISTURE DECREASES A BIT, BUT CRITICAL FIRE WEATHER CONDITIONS ARE
NOT EXPECTED THROUGH THE WEEK.
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT) THEN BECOMING PARTLY
SUNNY (55-65 PERCENT). CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....84-89.
MIN HUMIDITY........26-31 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 MPH SHIFTING TO THE WEST
8 TO 12 MPH IN THE AFTERNOON. GUSTS UP TO
20 MPH. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (26000 KNOT-FT) INCREASING TO VERY GOOD
BY THE MIDAFTERNOON.
MIXING HEIGHT.......5100 FT AGL INCREASING TO 9900 FT AGL BY PEAK
HEATING.
TRANSPORT WINDS.....NORTH 5 MPH SHIFTING TO THE SOUTHWEST 15 MPH IN
THE AFTERNOON.
CHANCE OF THUNDER...40 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT). CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN
SHOWERS THROUGH THE NIGHT.
CWR.................30 PERCENT.
MIN TEMPERATURE.....48-53.
MAX HUMIDITY........95-100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 MPH SHIFTING TO THE EAST
OVERNIGHT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE EVENING.
SMOKE DISPERSAL.....FAIR DECREASING TO POOR (4000 KNOT-FT)
OVERNIGHT.
MIXING HEIGHT.......4900 FT AGL DECREASING TO 700 FT AGL OVERNIGHT.
TRANSPORT WINDS.....SOUTHWEST 14 MPH SHIFTING TO THE NORTH 10 MPH
OVERNIGHT.
CHANCE OF THUNDER...35 PERCENT.
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
SHOWERS AND THUNDERSTORMS LIKELY IN THE
AFTERNOON.
CWR.................30 PERCENT.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........34-39 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 MPH. GUSTS UP TO 20 MPH.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
SMOKE DISPERSAL.....POOR (24000 KNOT-FT) INCREASING TO GOOD IN THE
AFTERNOON.
MIXING HEIGHT.......4800 FT AGL INCREASING TO 7500 FT AGL BY PEAK
HEATING.
TRANSPORT WINDS.....NORTHWEST 5 MPH SHIFTING TO THE SOUTHWEST 12
MPH IN THE AFTERNOON.
CHANCE OF THUNDER...60 PERCENT.
FORECAST DAYS 3 THROUGH 5
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 10-20 MPH,
BECOMING LIGHT AND VARIABLE OVERNIGHT. DAYTIME RH 30-40 PERCENT.
NIGHTTIME RH 90-100 PERCENT.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 10-20 MPH,
BECOMING LIGHT AND VARIABLE OVERNIGHT. DAYTIME RH 25-35 PERCENT.
NIGHTTIME RH 80-90 PERCENT.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 80S. EAST WINDS 8 TO 18 MPH,
BECOMING LIGHT AND VARIABLE OVERNIGHT. DAYTIME RH 25-35 PERCENT.
NIGHTTIME RH 80-90 PERCENT.
FORECASTER...GILLIAN FELTON
REQUESTED BY...THAD MCKAIN
TYPE OF REQUEST...WILDFIRE
.TAG 2619365.1/GJT
.DELDT 08/12/26
.FORMATTERVERSION 2.0.0
.EMAIL THADDEUS_MCKAIN@FIRENET.GOV
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