603
FNUS75 KSLC 171215
FWSSLC

Spot Forecast for Wild Goose Fire...USDA-FS UT-FIF
National Weather Service Salt Lake City UT
615 AM MDT Fri Jul 17 2026

Forecast is based on forecast start time of 0700 MDT on July 17.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Another day of showers and thunderstorms is expected
over, and around, the fire area today as monsoonal moisture
remains solidly in place. Late morning cumulus development over
the high terrain will develop into showers and thunderstorms after
about 1200, persisting through around 1700-1800 before
dissipating. Lower chances for showers and an isolated
thunderstorm will be maintained into the evening. As has been the
case for the past several days, primary threats associated with
these storms will be frequent lightning, gusty winds, and heavy
rainfall. Before any storms form, winds are expected to be light
and terrain driven. That said, storm development will quickly
create erratic wind speeds and directions throughout the day. This
trend will continue into Saturday.

.REST OF TODAY...

Sky/weather.........Partly cloudy (25-35 percent cloud cover) then
                    becoming mostly cloudy (75-85 percent cloud
                    cover). Showers likely with chance of
                    thunderstorms from 1200 to 1800.
CWR.................55 percent.
Chance of pcpn......70 percent.
Chance of lightning.50 percent.
Max temperature.....81-84.
Min humidity........46-49 percent.
Wind (20 ft)........Terrain driven (upslope) 4-7 mph. Gusty and erratic winds
in excess of 30 mph possible near thunderstorms.
Mixing height.......5900 ft AGL (40-50th Percentile).
Transport winds.....South 7 to 8 mph.

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent cloud cover) then
                    becoming partly cloudy (40-50 percent cloud
                    cover). Chance of showers and thunderstorms
                    before 2100.
CWR.................10 percent.
Chance of pcpn......30 percent.
Chance of lightning.30 percent.
Min temperature.....60-63.
Max humidity........65-68 percent.
Wind (20 ft)........Terrain driven (downslope) 3-6 mph. Gusty and erratic winds
                    expected near thunderstorms in the evening.
Mixing height.......500 ft AGL.
Transport winds.....South 7 to 8 mph.

.SATURDAY...

Sky/weather.........Partly cloudy (30-40 percent cloud cover) then
                    becoming mostly cloudy (65-75 percent cloud
                    cover). Showers likely with chance of
                    thunderstorms after 1200.
CWR.................35 percent.
Chance of pcpn......60 percent.
Chance of lightning.50 percent.
Max temperature.....82-85.
Min humidity........47-50 percent.
Wind (20 ft)........Terrain driven (upslope) 4-7 mph. Gusty
                    and erratic winds in excess of 30 mph possible
near thunderstorms.
Mixing height.......6400 ft AGL (40-50th Percentile).
Transport winds.....Southeast 6 to 13 mph.

$$
Forecaster...Webber
Requested by...Lars Filson
Type of request...WILDFIRE
.TAG 2617345.3/SLC
.DELDT 07/17/26
.FormatterVersion 2.0.0
.EMAIL Lars.filson@usda.gov