143
FNUS75 KSLC 071006
FWSSLC

Spot Forecast for New Canyon RX...USFS
National Weather Service Salt Lake City UT
406 AM MDT Fri Jun 7 2024

Forecast is based on ignition time of 0700 MDT on June 07.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...High pressure has weakened over Utah this morning,
and this is allowing moisture to return to the area. A shortwave
will cross northern and central Utah today, increasing instability
and allowing scattered showers and thunderstorms that develop.
Given the very dry lower levels, storms that develop will produce
little rain but are likely to produce dry lightning and periods of
gusty and erratic winds during the afternoon and early evening.
The moisture will remain in place tomorrow, but without an
associated shortwave overall coverage will be less than yesterday,
so the threat of gusty winds will be lower.

.REST OF TODAY...

Sky/weather.........Mostly sunny (15-25 percent cloud cover) then
                    becoming partly cloudy (50-60 percent cloud
                    cover). Scattered showers and thunderstorms.
CWR.................0 percent.
Chance of pcpn......30 percent.
LAL.................1 until 1200, then 4.
Max temperature.....72-76.
Min humidity........22-26 percent.
Wind (20 ft)........Upslope/upvalley winds 3-7 mph becoming west 5-10 mph
                    in the afternoon. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Clearing index......1000+.
Haines Index........5.

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent cloud cover).
                    Isolated showers and thunderstorms early in the
                    evening.
CWR.................0 percent.
Chance of pcpn......20 percent.
LAL.................2 until 2100, then 1.
Min temperature.....50-52.
Max humidity........55-57 percent.
Wind (20 ft)........West winds 5-10 becoming downslope/downvalley
                    3/7 mph late evening and overnight. Gusty and
                    erratic winds expected near thunderstorms early
                    in the evening.
Haines Index........4.

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent cloud cover) then
                    becoming partly cloudy (30-40 percent cloud
                    cover). Isolated showers and thunderstorms in
                    the afternoon.
CWR.................0 percent.
Chance of pcpn......20 percent.
LAL.................1 until 1200, then 2.
Max temperature.....70-74.
Min humidity........22-26 percent.
Wind (20 ft)........Upslope/upvalley winds 3-7 mph. Gusty and
                    erratic winds expected near thunderstorms in
                    the afternoon.
Clearing index......1000+.
Haines Index........4.

$$
Forecaster...Traphagan
Requested by...JD Pell
Type of request...PRESCRIBED
.TAG 2415629.2/SLC
.DELDT 06/07/24
.FormatterVersion 2.0.0
.EMAIL john.d.pell@usda.gov