484
FNUS75 KSLC 081030
FWSSLC

Spot Forecast for New Canyon...USFS
National Weather Service Salt Lake City UT
430 AM MDT Wed Oct 8 2025

Forecast is based on ignition time of 0600 MDT on October 08.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...The drying trend will continue at the burn site
today, with southwest winds increasing as a trough approaches the
Pacific Northwest coast. Twenty foot winds will be predominately
in the 8-12 mph range with occasional gusts up to 25 mph. This
will be the driest day of the week for the burn, with afternoon
relative humidity values falling into the upper teens. As the flow
moves from southwest to south tonight into tomorrow, it will tap
into deep tropical moisture that will be drawn quickly northward.
Thus, minimum relative humidity values will rise into the 40s.
Naturally, this will bring scattered showers and thunderstorms
during the afternoon, with gusty and erratic winds possible with
any storms that develop. Deep moisture will remain in place
through at least Saturday, with showers and thunderstorms expected
to be most widespread on Friday. Storm total accumulations at the
burn site through the weekend are anticipated to be in the 0.5-1.0
inch range. With the passage of a cold front Saturday night, the
burn will see a chance of light snow accumulations, with up to
two inches possible.

.TODAY...

Sky/weather.........Sunny (0-10 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.0 percent.
Max temperature.....56-60.
Min humidity........16-20 percent.
Wind (20 ft)........Southwest winds 8-12 mph with gusts to 25
                    mph in the afternoon.
Mixing height.......7100 ft AGL.
   Climatology......50-60th Percentile.
Transport winds.....Southwest winds 20-25 mph.
Clearing index......1000+.

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of lightning.1 percent.
Min temperature.....40-44.
Max humidity........52-56 percent.
Wind (20 ft)........Southwest winds 5-10 mph shifting to the
                    south overnight.
Mixing height.......0 ft AGL.
Transport winds.....Southwest winds 12-18 mph.

.THURSDAY...

Sky/weather.........Partly cloudy (50-60 percent cloud cover).
                    Chance of rain showers in the afternoon. Slight
                    chance of thunderstorms late in the afternoon.
CWR.................20 percent.
Chance of pcpn......40 percent.
Chance of lightning.15 percent.
Max temperature.....54-58.
Min humidity........44-48 percent.
Wind (20 ft)........South winds 8-12 mph. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Mixing height.......2900 ft AGL.
   Climatology......30-40th Percentile.
Transport winds.....South winds 12-18 mph.
Clearing index......750.

$$
Forecaster...Traphagan
Requested by...Kyler hatch
Type of request...PRESCRIBED
.TAG 2523051.1/SLC
.DELDT 10/08/25
.FormatterVersion 2.0.0
.EMAIL Kyler.hatch@usda.gov,Ronald.sorenson@usda.gov,John.d.pell@usda.gov