189
FNUS75 KGJT 130135
FWSGJT

Spot Forecast for South Rim Fire...USFS
National Weather Service Grand Junction CO
735 PM MDT Sat Jul 12 2025

Forecast is based on forecast start time of 0600 MDT on July 13.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...High pressure to the west will provide continued
hot and dry conditions with breezy afternoons due to northerly
flow around the ridge through the early part of the coming week.
Storms are possible each afternoon over the high terrain with a
better increase in moisture and storm coverage late in the week
as the flow becomes southerly. Gusty outflow winds and lightning
remain the main concerns with low chance of wetting rain.

.SUNDAY...

Sky/weather.........Sunny (15-25 percent). Areas of smoke through
                    the day.
CWR.................0 percent.
Max temperature.....83-88.
Min humidity........11-16 percent.
Wind (20 ft)........Southeast winds 10 mph shifting to the west 8
                    to 12 mph with gusts to 20 mph in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms in the afternoon.
Smoke dispersal.....Poor (35000 knot-ft) increasing to good in the
                    afternoon.
Mixing height.......6900 ft AGL increasing to 11800 ft AGL in the
                    afternoon.
Transport winds.....Northeast 10 mph shifting to the north in the
                    afternoon.
Chance of thunder...10 percent.

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy (40-50 percent).
CWR.................0 percent.
Min temperature.....54-59.
Max humidity........49-54 percent.
Wind (20 ft)........Southeast winds 8 to 12 mph.
Smoke dispersal.....Good decreasing to poor (0 knot-ft) overnight.
Mixing height.......8600 ft AGL decreasing to 0 ft AGL overnight.
Transport winds.....East 19 mph.
Chance of thunder...5 percent.

.MONDAY...

Sky/weather.........Sunny (10-20 percent) then becoming partly
                    sunny (45-55 percent). Chance of showers and
                    thunderstorms in the afternoon.
CWR.................10 percent.
Max temperature.....83-88.
Min humidity........13-18 percent.
Wind (20 ft)........South winds 10 mph shifting to the west 8 to 12
                    mph with gusts to 20 mph in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms in the afternoon.
Smoke dispersal.....Poor (30000 knot-ft) increasing to good in the
                    afternoon.
Mixing height.......6000 ft AGL increasing to 11100 ft AGL in the
                    afternoon.
Transport winds.....Northwest 10 mph.
Chance of thunder...25 percent.

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...
Mostly clear. Lows in the mid 50s. Highs in the mid 80s. South
winds 10 mph.
.WEDNESDAY...
Partly cloudy. Slight chance of showers and thunderstorms. Lows
in the mid 50s. Highs in the mid 80s. South winds 10 mph.
.THURSDAY...
Partly cloudy. Chance of showers and thunderstorms. Lows in the
mid 50s. Highs in the mid 80s. Southeast winds 10 mph.
.FRIDAY...
Partly cloudy. Chance of showers and thunderstorms. Lows in the
mid 50s. Highs in the lower 80s.
.SATURDAY...
Partly cloudy. Chance of showers and thunderstorms. Lows in the
upper 50s. Highs in the lower 80s.

$$
Forecaster...Matt Aleksa
Requested by...Shane Zimmerman
Type of request...WILDFIRE
.TAG 2517891.0/GJT
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL shane_zimmerman@firenet.gov