086
FNUS75 KSLC 150048
FWSSLC

Spot Forecast for Little Twist...Richfield Interagency Fire Center
National Weather Service Salt Lake City UT
648 PM MDT Fri Jun 14 2024

Forecast is based on forecast start time of 1900 MDT on June 14.
If conditions become unrepresentative...contact the National Weather
Service.

...STRONG, DRY COLD FRONTAL PASSAGE EXPECTED MONDAY EVENING...

.DISCUSSION...Gusty west to southwest winds will remain in place
through the weekend at ridgetop level, with canyons and lower elevation
areas experiencing drainage winds each night. Due to a slightly
stronger pressure gradient on Saturday, it will take a bit longer
for drainage winds to develop Saturday evening. Otherwise the
trend through the weekend will be breezy daytime conditions with
poor overnight humidity.

A strong, dry cold front for June standards will plow through the
area Monday evening. Ahead of the front on Monday, transport
winds will increase to around 30-35 mph in the afternoon, and min
humidity will be in the 10-15 percent range. Wind direction will
shift abruptly to the northwest and north Monday evening as the
front moves through, and winds will be similarly gusty
along/behind the front through the rest of the evening before
winds gradually decrease Monday night behind the front. Current
forecast suggests the cold front will pass through the area
between 1800-2100 Monday evening. This window could shift slightly
as we get closer. Slight RH recovery expected Tuesday morning
behind the front with RH climbing into the 45-55 percent range.
Min RH on Tuesday, however, looks similarly low to the past several
days, back into the teens.

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....60-62 at lower elevations, 51-53 at higher elevations.
Max humidity........26-28 percent at lower elevations, 27-30 percent at
                    higher elevations.
Wind (20 ft)........West winds 5-10 mph with gusts to 18 mph at lower elevations,
                    and west 7-14 mph with gusts to 21 mph at ridgetop. Then,
                    becoming downvalley/downslope 3-8 mph between 2100-2200.
                    Little change expected in ridgetop winds overnight.
Transport winds.....West 12 to 18 mph.
Haines Index........6.

.SATURDAY...

Sky/weather.........Mostly sunny (5-15 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....At lower elevations, 80-82. At higher elevations, 68-70.
Min humidity........11-15 percent all elevations.
Wind (20 ft)........Downvalley/downslope winds 3-8 mph becoming west
                    around 1000, then increasing to 8-16 mph with gusts
                    to around 25 mph around 1200. At ridgetop level, west
                    winds 7-14 mph with gusts to 21 mph increasing to
                    10-20 mph with gusts to 28 mph around 1200. Winds
                    locally stronger where winds and terrain align.
Transport winds.....Southwest 22 to 26 mph.
Haines Index........6.

.SATURDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent cloud cover). Patchy
                    smoke.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....56-58 at lower elevations, 51-53 at higher elevations.
Max humidity........16-18 percent at lower elevations,
                    21-23 percent at higher elevations.
Wind (20 ft)........West to southwest winds 5-14 mph with gusts to around
                    22 mph becoming downslope/downvalley 3-8 mph between
                    2400-0200. Gusts up to around 26 mph in the evening. At
                    ridgetop level, winds becoming west-southwest and
                    decreasing to 7-14 mph with gusts to around 23 mph.
Transport winds.....Southwest around 25 mph becoming around 13 mph
                    overnight.
Haines Index........6.

.SUNDAY...

Sky/weather.........Mostly sunny (0-10 percent cloud cover).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....At lower elevations, 77-79. At higher elevations, 65-68
Min humidity........At lower elevations, 13-15 percent. At higher elevations,
                    17-20 percent.
Wind (20 ft)........Downslope/downvalley winds 3-8 mph becoming southwest to
                    west 6-16 between 0900-1000 then increasing to 7-15 mph
                    with gusts to around 23 mph in the afternoon.
                    At ridgetop level, west-southwest winds 7-14 mph with gusts
                    to around 23 mph increasing to 8-16 mph with gusts to around 28
                    mph in the afternoon.
Transport winds.....Southwest around 15 mph becoming around 28 mph
                    in the afternoon.
Haines Index........6.

$$
Forecaster...ADeSmet
Requested by...Russ Bigelow
Type of request...WILDFIRE
.TAG 2416142.0/SLC
.DELDT 06/14/24
.FormatterVersion 2.0.0
.EMAIL utrfc@firenet.gov