289
FNUS75 KSLC 032139
FWSSLC

Spot Forecast for Little Twist WF...USDA Forest Service
National Weather Service Salt Lake City UT
339 PM MDT Wed Jul 3 2024

Forecast is based on forecast start time of 0700 MDT on July 04.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Cooler, persistent northerly flow will remain in place over the
fire are through the next 24-48 hours, however, temperatures will
remain above seasonal normals by around 3-5 degrees. Very dry
conditions will persist through both the daytime and nighttime
hours, with humidity dropping into the single digits for the lower
elevations, and only recovering into the low- to mid-20 percent
range, with much of the night being spent in the teens for
humidity values. Winds will prevail out of a northerly direction
through the remainder of the week, with highest speeds anticipated
on higher exposure slopes and ridges. For the more protected
slopes (e.g. south facing), light terrain driven flows are
expected. Strong high pressure will remain in place through at
least the end of next week, bringing virtually no chance of
precipitation through at least Tuesday.

.THURSDAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover). Patchy
                    smoke.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Lower Elevations: 75-80
Upper Elevations: 63-68
Min humidity........Lower Elevations: 7-10 percent
Upper Elevations: 9-13 percent
Wind (20 ft)........Slopes: Northwest winds 5-10 mph in the lower elevations with gusts
around 15 mph in the afternoon on more exposed slopes. Protected
slopes will see upslope flows around 4-7 mph.
Ridges: northwest winds 7-12 mph with gusts up to 20 mph.
Transport winds.....Northwest 10 to 15 mph.
Haines Index........5.
Mixing Height.......8,000-9,000ft

.THURSDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent cloud cover). Patchy
                    smoke.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....50-55.
Max humidity........20-25 percent.
Wind (20 ft)........Slopes: Northwest to north winds 5-9 mph on slopes with higher north
exposure. Otherwise, downslope around 4-8 mph.
Ridges: North winds 10-15 mph with gusts up to 20-25 mph.
Transport winds.....North 10 to 15 mph.
Haines Index........5.

.FRIDAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Lower Elevations: 76-81.
Upper Elevations: 65-70
Min humidity........Lower Elevations: 7-10 percent.
Upper Elevations: 9-13 percent
Wind (20 ft)........Slopes: North winds 5-10 mph becoming northwest 6-10
                    mph with gusts to around 20 mph on higher exposure north facing
slopes.
Ridges: North to northwest winds 7-12 mph with gusts up to 20 mph.
Transport winds.....North to northwest 10-15 mph.
Haines Index........6.
Mixing Height.......8,000-9,000ft

$$
Forecaster...Webber
Requested by...Cory Norman
Type of request...WILDFIRE
.TAG 2417335.0/SLC
.DELDT 07/03/24
.FormatterVersion 2.0.0
.EMAIL samuel.norman@usda.gov