FNUS75 KSLC 251022

FWSSLC



Spot Forecast for Spring Canyon RX...USFS

National Weather Service Salt Lake City UT

422 AM MDT Sat Oct 25 2025



Forecast is based on ignition time of 0600 MDT on October 25. 

If conditions become unrepresentative...contact the National Weather

Service.



.DISCUSSION...Dry conditions with enhanced southwesterly winds

exist today at the burn site ahead of a cold front moving through

northern Utah late tonight into early Sunday. Improved mixing and

stronger winds will yield excellent clearing today and Sunday.

Light snow is expected to accompany the frontal passage overnight,

though accumulations will be little to none during this period. A

brief break in precipitation chances is expected Sunday morning 

before chances increase again during the afternoon and evening 

hours. Sunday afternoon into early Monday morning will be the 

best shot for accumulating snowfall at the burn site. Overall, 

between tonight and early Monday morning, there is a 70% chance 

for 1 inch or greater snowfall accumulation, and a 50% chance for 

2 inches or greater. Drier conditions are expected to settle in 

Monday onward as high pressure develops over the region.



.TODAY...



Sky/weather.........Partly cloudy (45-55 percent cloud cover). 

CWR.................0 percent. 

Chance of pcpn......0 percent. 

Chance of lightning.1 percent. 

Max temperature.....53-55. 

Min humidity........29-31 percent. 

Wind (20 ft)........Light slope winds becoming southwest 10-13 mph

                    with gusts to 20 mph after 1100. 

Mixing height.......4400 ft AGL. 

   Climatology......30-40th Percentile. 

Transport winds.....Southwest around 13 mph becoming around 23 mph 

                    in the afternoon. 

Clearing index......900. 



.TONIGHT...



Sky/weather.........Partly cloudy (55-65 percent cloud cover). 

                    Slight chance of light snow between 2300-

                    0500. 

CWR.................10 percent. 

Chance of pcpn......20 percent. 

Chance of lightning.2 percent. 

Min temperature.....31-33. 

Max humidity........70-72 percent. 

Wind (20 ft)........Southwest winds 6-8 mph. 

Mixing height.......600 ft AGL. 

Transport winds.....Southwest 15 to 17 mph. 



.SUNDAY...



Sky/weather.........Partly cloudy (55-65 percent cloud cover) then 

                    becoming mostly cloudy (75-85 percent cloud 

                    cover). Chance of snow after 1500. 

CWR.................25 percent. 

Chance of pcpn......50 percent. 

Chance of lightning.5 percent. 

Max temperature.....42-44. 

Min humidity........55-57 percent. 

Wind (20 ft)........West winds 8-12 mph. Gusts up to 20 mph late in 

                    the afternoon. 

Mixing height.......4200 ft AGL. 

   Climatology......30-40th Percentile. 

Transport winds.....West around 13 mph becoming southwest around 29 

                    mph in the afternoon. 

Clearing index......1000+. 



$$

Forecaster...Whitlam

Requested by...Thomas Bolke

Type of request...PRESCRIBED

.TAG 2524362.1/SLC

.DELDT 10/25/25

.FormatterVersion 2.0.0

.EMAIL thomas.bolke@usda.gov