Spot Forecast
Issued by NWS Grand Junction, CO

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741
FNUS75 KGJT 120011
FWSGJT

Spot Forecast for South Rim Fire...USFS
National Weather Service Grand Junction CO
611 PM MDT Fri Jul 11 2025

Forecast is based on forecast start time of 0600 MDT on July 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Latest guidance has shifted convection just to the east and south
of the wildfire. Even so, a very slight chance (< 15%) will
remain in the forecast for a quick shower or storm in the
afternoon Saturday. Generally light winds are expected through the
weekend from the west through northwest. Sunday, more of the same
with slight chances for afternoon convection. Do not expect any
wetting rains through the weekend either. Monday, a weak
disturbance will move through and bring a slight uptick in showers
and storms. As of now, best chances will remain to the south over
the San Juans. A 20% chance exists for any convection over the
wildfire.

.SATURDAY...

Sky/weather.........Sunny (0-10 percent). Smoke. Very slight chance
                    for an afternoon shower or storm.
CWR.................0 percent.
Max temperature.....80-85.
Min humidity........10-15 percent.
Wind (20 ft)........West through northwest 8 to 12 mph shifting
                    to the northwest in the afternoon.
Smoke dispersal.....Poor increasing to very good in the afternoon.
Mixing height.......6400 ft AGL increasing to 11200 ft AGL in the
                    afternoon.
Transport winds.....Southeast 14 mph shifting to the west 15 mph in
                    the afternoon.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear (10-20 percent). Smoke.
CWR.................0 percent.
Min temperature.....53-58.
Max humidity........43-48 percent.
Wind (20 ft)........Downslope/Downvalley 4 to 8 mph.
Smoke dispersal.....Very good decreasing to poor overnight.
Mixing height.......10200 ft AGL decreasing to 0 ft AGL overnight.
Transport winds.....North 16 mph shifting to the east 10 mph
                    overnight.

.SUNDAY...

Sky/weather.........Sunny (5-15 percent). Very slight chance
                    for an afternoon shower or storm.
CWR.................0 percent.
Max temperature.....83-88.
Min humidity........10-15 percent.
Wind (20 ft)........Northwest winds 8 to 12 mph.
Smoke dispersal.....Poor increasing to good in the afternoon.
Mixing height.......6100 ft AGL increasing to 12300 ft AGL in the
                    afternoon.
Transport winds.....Northeast 10 mph shifting to the northwest in
                    the afternoon.

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy (45-55 percent).
CWR.................0 percent.
Min temperature.....55-60.
Max humidity........45-50 percent.
Wind (20 ft)........Downslope/Downvalley 4 to 8 mph.
Smoke dispersal.....Good decreasing to poor overnight.
Mixing height.......10600 ft AGL decreasing to 0 ft AGL overnight.
Transport winds.....East 14 mph.
Clearing Index......740 decreasing to 50 overnight.

.MONDAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance of
                    showers and thunderstorms in the afternoon.
CWR.................10 percent.
Max temperature.....82-87.
Min humidity........13-18 percent.
Wind (20 ft)........Northwest winds 10 to 12 mph.Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.
Smoke dispersal.....Fair increasing to good in the afternoon.
Mixing height.......6800 ft AGL increasing to 10900 ft AGL in the
                    afternoon.
Transport winds.....South 10 mph shifting to the northwest 12 mph
                    in the afternoon.
Clearing Index......410 increasing to 870 in the afternoon.


$$
Forecaster...Tom Renwick
Requested by...Shane Zimmerman
Type of request...WILDFIRE
.TAG 2517838.0/GJT
.DELDT 07/11/25
.FormatterVersion 2.0.0
.EMAIL shane_zimmerman@firenet.gov