817
FNUS75 KSLC 281148
FWSSLC

Spot Forecast for Boulder Top Fire...United States Forest Service
National Weather Service Salt Lake City UT
548 AM MDT Tue Jul 28 2026

Forecast is based on forecast start time of 0600 MDT on July 28.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Isolated showers and thunderstorms may develop in
the vicinity of the fire after noon, but better chances for more
widely scattered thunderstorms capable of producing gusty and
erratic outflow winds to 40 mph is expected between 1800-2200.
Scattered showers and thunderstorms are expected once again
Wednesday afternoon and evening, and will again be capable of
producing gusty and erratic outflow winds. A much warmer and drier
airmass develops over the region Thursday onward, resulting in
limited convective activity and gradually decreasing relative
humidity through the remainder of the week.

.TODAY...

Sky/weather.........Mostly sunny (15-25 percent cloud cover) then
                    becoming partly cloudy (45-55 percent cloud
                    cover). 15 to 20 percent light chance of showers
                    and thunderstorms after 1200.
CWR.................10 percent.
Chance of pcpn......20 percent.
Chance of lightning.19 percent.
Max temperature.....Around 70.
Min humidity........36-38 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph becoming south 7 to
                    12 mph in the late morning and afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    in the afternoon.
Mixing height.......8700 ft AGL (70-80th Percentile).
Transport winds.....Southwest around 9 mph becoming west around 10
                    mph in the afternoon.

.TONIGHT...

Sky/weather.........Partly cloudy (60-70 percent cloud cover).
                    30 percent chance of showers and thunderstorms
                    between 1800-2200.
CWR.................10 percent.
Chance of pcpn......30 percent.
Chance of lightning.22 percent.
Min temperature.....53-55.
Max humidity........56-58 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph. Gusty and erratic
                    winds expected near thunderstorms in the evening.
Mixing height.......600 ft AGL.
Transport winds.....West 9 to 10 mph.

.WEDNESDAY...

Sky/weather.........Partly cloudy (60-70 percent cloud cover) then
                    becoming mostly cloudy (70-80 percent cloud
                    cover). 50 to 60 percent chance of showers
                    and thunderstorms after noon.
CWR.................30 percent.
Chance of pcpn......60 percent.
Chance of lightning.51 percent.
Max temperature.....66-68.
Min humidity........41-43 percent.
Wind (20 ft)........North winds 5 to 7 mph becoming south 7 to 12
                    mph in the late morning and afternoon. Gusty
                    and erratic winds expected near thunderstorms.
Mixing height.......8600 ft AGL (70-80th Percentile).
Transport winds.....Southwest 9 to 16 mph.

$$
Forecaster...Whitlam
Requested by...Kanaan Nealley
Type of request...WILDFIRE
.TAG 2618052.4/SLC
.DELDT 07/28/26
.FormatterVersion 2.0.0
.EMAIL kanaan.nealley@usda.gov