366
FNUS75 KGJT 221251
FWSGJT

Spot Forecast for Slough Canyon...UTUBC
National Weather Service Grand Junction CO
651 AM MDT Sat Aug 22 2026

Forecast is based on forecast start time of 0700 MDT on August 22.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Only a slight (<15%) chance for thunderstorms today
and tomorrow afternoon, but better chances (30-40%) for storms to
the northeast can produce lightning and gusty outflow winds to
35-40 mph. Otherwise, look for southwest winds 10-15 mph today and
tomorrow with winds dropping off to light downslope/down canyon
breezes overnight.

.TODAY...

Sky/weather.........Mostly sunny (30-40 percent). Slight chance
                    of afternoon showers and thunderstorms.
CWR.................0 percent.
Max temperature.....82-87.
Min humidity........21-26 percent.
Wind (20 ft)........South winds 10 mph shifting to the southwest
                    15 mph in the afternoon. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Smoke dispersal.....Good increasing to very good in the afternoon.
Mixing height.......6000 ft AGL increasing to 10000 ft AGL in the
                    afternoon.
Transport winds.....South 12 mph.
Clearing Index......600 increasing to 1050 in the afternoon.
Chance of thunder...15 percent.

.TONIGHT...

Sky/weather.........Partly cloudy (20-30 percent).
CWR.................0 percent.
Min temperature.....62-67.
Max humidity........43-48 percent.
Wind (20 ft)........Southeast winds 10 mph.
Smoke dispersal.....Good decreasing to poor (3000 knot-ft)
                    overnight.
Mixing height.......6500 ft AGL decreasing to 500 ft AGL overnight.
Transport winds.....Southeast 10 mph.
Clearing Index......650 decreasing to 50 overnight.
Chance of thunder...10 percent.

.SUNDAY...

Sky/weather.........Sunny (10-20 percent). Slight chance
                    of afternoon showers and thunderstorms.
CWR.................0 percent.
Max temperature.....82-87.
Min humidity........17-22 percent.
Wind (20 ft)........South winds 10 mph shifting to the southwest 15
                    mph in the afternoon. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Smoke dispersal.....Good increasing to excellent in the afternoon.
Mixing height.......6600 ft AGL increasing to 11700 ft AGL in the
                    afternoon.
Transport winds.....Southwest 14 mph.
Clearing Index......730 increasing to 1050 in the afternoon.
Chance of thunder...10 percent.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the mid 60s. Highs in the lower 80s. South winds 5 mph.
.TUESDAY...
Partly cloudy. Lows in the lower 60s. Highs in the lower 80s.
South winds 5 mph.
.WEDNESDAY...
Partly cloudy. Lows in the lower 60s. Highs in the mid 80s.
Southeast winds 5 mph.

$$
Forecaster...David Byers
Requested by...Fischer
Type of request...WILDFIRE
.TAG 2619987.5/GJT
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL tmaine@blm.gov,utubc@firenet.gov,cfischer@blm.gov