Spot Forecast
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
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FNUS75 KSLC 041140
FWSSLC
Spot Forecast for Central Area Piles...FFSL Central Area
National Weather Service Salt Lake City UT
440 AM MST Thu Dec 4 2025
Forecast is based on ignition time of 0700 MST on December 04.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...Overall stable conditions with light winds will
result in low clearing indices today and Friday, despite a few
isolated showers developing Friday afternoon with a slight
increase in winds. Clearing index looks to improve quite a bit on
Saturday as a storm system grazes southern Utah, with current
forecasts showing a clearing index of 700, with light snow falling
mostly between late Friday evening and mid-day Saturday. This
will be short-lived as more stable conditions return late in the
weekend.
.TODAY...
Sky/weather.........Mostly sunny (5-15 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....22-25.
Min humidity........47-50 percent.
Wind (20 ft)........Northwest winds 5-9 mph.
Mixing height.......1000 ft AGL.
Climatology......20-30th Percentile.
Transport winds.....Northwest 7 to 9 mph.
Clearing index......100.
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Min temperature.....17-20.
Max humidity........74-77 percent.
Wind (20 ft)........Northwest winds 4-8 mph.
Mixing height.......0 ft AGL.
Transport winds.....West 7 to 10 mph.
.FRIDAY...
Sky/weather.........Mostly cloudy (75-85 percent cloud cover) then
becoming partly cloudy (50-60 percent cloud
cover).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of lightning.0 percent.
Max temperature.....25-28.
Min humidity........70-73 percent.
Wind (20 ft)........Northwest winds 10-15 mph with gusts to 20 mph
along ridgelines.
Mixing height.......1000 ft AGL.
Climatology......20-30th Percentile.
Transport winds.....Northwest around 15 mph.
Clearing index......200.
$$
Forecaster...Cunningham
Requested by...Matt Christensen
Type of request...PRESCRIBED
.TAG 2526682.4/SLC
.DELDT 12/04/25
.FormatterVersion 2.0.0
.EMAIL mattchristensen@utah.gov