166
FNUS75 KSLC 080120
FWSSLC

Spot Forecast for Lazy 8 #5...Box Elder county Fire Marshal
National Weather Service Salt Lake City UT
620 PM MST Sun Dec 7 2025

Forecast is based on ignition time of 0100 MST on December 08.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...For the next several days the burn area will remain on
the eastern periphery of an area of high pressure. As such,
weather conditions will be characterized by generally stable
conditions and light winds. Just to the north, moisture will be
riding over the top of the high pressure region, leading to an
overall increased cloud cover across northern Utah. While Monday
will feature decreasingly cloudy skies, cloud cover is expected to
increase once again by Tuesday morning. By Tuesday, another
weather system scrapes by far northern Utah, bringing only low end
probability (10-20% chance) for precipitation over the burn site.

The area of high pressure will become increasingly strong through
the remainder of the week, with surface temperatures rising
fairly rapidly after Tuesday. While high pressure expands its
dominance across the region, precipitation chances will remain low
at best. In general, stable conditions will bring poor clearing
through the upcoming week.

.REST OF TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of lightning.0 percent.
Min temperature.....Around 30.
Max humidity........84-86 percent.
Wind (20 ft)........West winds 4-7 mph.
Transport winds.....West around 8 mph.

.MONDAY...

Sky/weather.........Partly cloudy (40-50 percent cloud cover) then
                    becoming mostly sunny (20-30 percent cloud
                    cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....43-45.
Min humidity........63-65 percent.
Wind (20 ft)........Downslope 4-6 mph becoming upslope 5-8 mph
                    late in the morning.
Mixing height.......1900 ft AGL.
   Climatology......10-20th Percentile.
Transport winds.....Northwest around 7 mph becoming south to southeast
                    around 7-10 mph in the afternoon.
Clearing index......180.

.MONDAY NIGHT...

Sky/weather.........Partly cloudy (50-60 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......10 percent.
Chance of lightning.0 percent.
Min temperature.....Around 30.
Max humidity........75-77 percent.
Wind (20 ft)........Southwest winds 5-8 mph.
Transport winds.....Southwest 9 to 10 mph.

.TUESDAY...

Sky/weather.........Mostly cloudy (70-80 percent cloud cover).
                    Slight chance of rain late in the morning.
CWR.................5 percent.
Chance of pcpn......20 percent.
Chance of lightning.0 percent.
Max temperature.....44-46.
Min humidity........67-69 percent.
Wind (20 ft)........Southwest winds 6-10 mph.
Mixing height.......1400 ft AGL.
   Climatology......10-20th Percentile.
Transport winds.....West 8 to 14 mph.
Clearing index......140.

$$
Forecaster...Webber
Requested by...Spencer Newman
Type of request...PRESCRIBED
.TAG 2527099.0/SLC
.DELDT 12/07/25
.FormatterVersion 2.0.0
.EMAIL snewman@boxeldercountyut.gov