FNUS75 KSLC 221254
FWSSLC

Spot Forecast for Harley...Northern Utah IFC
National Weather Service Salt Lake City UT
654 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...Dry conditions in the morning will give way to isolated
convection beginning in the late afternoon with the threat 
persisting through the overnight period. Storms will weaken 
overnight and become more light rain showers, in nature. Showers 
will eventually dissipate by the early morning hours with another 
round of afternoon convection developing on Sunday afternoon, 
although slightly lower precipitation probabilities compared to 
Saturday given drier air starting to make it's way into the 
region. This trend will continue through midweek. Relative 
humidity will also decrease as the week continues. 

Regarding the storms this afternoon/early evening models are 
consistently depicting a line of storms moving through northern 
Utah that are accompanied by strong westerly winds with gusts 
30-45 mph arriving between a 5pm-8pm window before weakening after
9pm.

.REST OF TODAY...

Sky/weather.........Partly cloudy (55-65 percent cloud cover) then 
                    becoming mostly sunny (25-35 percent cloud 
                    cover). Scattered showers and thunderstorms in
					the afternoon.
CWR.................20 percent. 
Chance of pcpn......40 percent. 
Chance of lightning.15 percent. 
Max temperature.....94-96. 
Min humidity........26-28 percent. 
Wind (20 ft)........North winds 5 to 7 mph becoming south 7 to 11 
                    mph in the late morning and afternoon. 
Mixing height.......10400 ft AGL (70-80th Percentile). 
Transport winds.....Southwest 9 to 15 mph. 

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent cloud cover). 
                    Scattered showers in the evening. Isolated 
                    thunderstorms through the night. Isolated 
                    showers overnight. 
CWR.................0 percent. 
Chance of pcpn......30 percent. 
Chance of lightning.20 percent. 
Min temperature.....66-68. 
Max humidity........65-67 percent. 
Wind (20 ft)........Southwest winds 9 to 11 mph becoming north 3 to 
                    8 mph in the late evening and overnight. Gusty 
                    and erratic winds expected near thunderstorms 
                    in the evening and overnight. 
Mixing height.......500 ft AGL. 
Transport winds.....Southwest around 14 mph becoming north around 8 
                    mph overnight. 

.SUNDAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover). 
CWR.................0 percent. 
Chance of pcpn......10 percent. 
Chance of lightning.7 percent. 
Max temperature.....93-95. 
Min humidity........26-28 percent. 
Wind (20 ft)........North winds 3 to 5 mph becoming southwest 6 to 
                    11 mph in the late morning and afternoon. 
Mixing height.......11600 ft AGL (70-80th Percentile). 
Transport winds.....Southwest 8 to 16 mph. 

$$
Forecaster...Mahan
Requested by...Northern Utah IFC
Type of request...WILDFIRE
.TAG 2620227.1/SLC
.DELDT 08/22/26
.FormatterVersion 2.0.0
.EMAIL utnuc@firenet.gov,trhobbs@utah.gov