Spot Forecast
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
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936
FNUS75 KSLC 061339
FWSSLC
Spot Forecast for Weber Basin Pile RX...USFS
National Weather Service Salt Lake City UT
639 AM MST Sat Dec 6 2025
Forecast is based on ignition time of 0900 MST on December 06.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Rain is ongoing this morning at the burn site and
will be heaviest this morning before tapering off late morning
into the afternoon. The unstable airmass and enhanced transport
winds will combine to keep clearing indices around 500 today. As
high pressure builds east into the area tomorrow, transport winds
will decrease noticeably, bringing clearing indices well below
500. Clearing indices may rise some by midweek, but there is a
high chance they will not reach 500 at the burn site.
.REST OF TODAY...
Sky/weather.........Mostly cloudy (70-80 percent cloud cover) then
becoming partly cloudy (60-70 percent cloud
cover). Rain likely late in the morning, then
chance of rain late in the morning.
CWR.................45 percent.
Chance of pcpn......60 percent.
Max temperature.....42-46.
Min humidity........74-78 percent.
Wind (20 ft)........Northwest winds 5-10 mph.
Mixing height.......4100 ft AGL.
Climatology......20-30th Percentile.
Transport winds.....Northwest winds 10-15 mph.
Clearing index......550.
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......10 percent.
Min temperature.....28-32.
Max humidity........90-94 percent.
Wind (20 ft)........Downslope/downvalley winds 3-7 mph.
Mixing height.......1500 ft AGL.
Transport winds.....Southwest winds 5-10 mph.
.SUNDAY...
Sky/weather.........Partly cloudy (40-50 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......10 percent.
Max temperature.....42-46.
Min humidity........64-68 percent.
Wind (20 ft)........Upslope/upvalley winds 3-7 mph.
Mixing height.......2700 ft AGL.
Climatology......10-20th Percentile.
Transport winds.....South winds 5-10 mph.
Clearing index......130.
$$
Forecaster...Traphagan
Requested by...Brandon Everett
Type of request...PRESCRIBED
.TAG 2526910.1/SLC
.DELDT 12/06/25
.FormatterVersion 2.0.0
.EMAIL Brandon.Everett@usda.gov