Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
032
FNUS55 KSLC 180839
FWFSLC
Fire Weather Planning Forecast for Utah
National Weather Service Salt Lake City UT
239 AM MDT Mon Aug 18 2025
...DRIER AND HOTTER...MOISTURE RETURNS MID TO LATE WEEK...
.BROADCAST DISCUSSION...High pressure will strengthen across
the region through Tuesday bringing a warming and drying trend.
Monsoon moisture will spread back into the region for the latter
half of the week, bringing showers and thunderstorms along with
cooler temperatures and higher humidities.
.DISCUSSION...As high pressure strengthens across the region, a hotter
and much drier airmass will build into the area. This will bring
single digit humidities to much of the state with poor to very
poor overnight recoveries through midweek.
A monsoon surge will begin to increase mid-level moisture across
western Utah Wednesday, spreading east with time. Initial
thunderstorms on Wednesday are likely to be dry...with the threat
of gusty microburst winds. By Thursday, storms will begin to
transition to mix of wet and dry...fully shifting toward wet with
attendant higher threat of wetting rains by Friday. This monsoon
surge looks likely to continue into at least early next week.
***Thunderstorms imply strong, gusty and erratic winds***
***All winds are 20 foot, 10-minute averages***
UTZ478-190030-
Salt Lake Desert-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....85-93 near 5000 feet.
73-79 near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........6-16%.
24 hr trend......5% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......13200 ft AGL.
Climatology......70-80th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....59-69.
24 hr trend......Unchanged.
Max humidity........25-35%.
24 hr trend......8% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....89-98 near 5000 feet.
76-84 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........6-16%.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South 15-20 mph.
Mixing height.......13700 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Lows in the upper 60s. Highs in the
mid 90s in the valleys and in the lower 80s in the mountains.
Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the lower 90s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the upper 60s. Highs in the mid 90s in the
valleys and in the upper 70s in the mountains. Winds generally
less than 15 mph.
.SATURDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the upper 60s. Highs in the lower 90s in
the valleys and in the upper 70s in the mountains.
.SUNDAY...Mostly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the mid 60s in the valleys and in the
lower 60s in the mountains. Highs in the upper 80s in the valleys
and in the mid 70s in the mountains.
=
$$
UTZ479-190030-
Wasatch Mountains-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-94 near 5000 feet.
75-83 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-17%.
24 hr trend......8% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......13200 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....51-61.
24 hr trend......2 degrees warmer.
Max humidity........28-38% near 5000 feet.
22-32% near 8000 feet.
24 hr trend......15% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest 10-15 mph.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-100 near 5000 feet.
79-89 near 8000 feet.
24 hr trend......5 degrees warmer.
Min humidity........6-16%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14500 ft AGL.
Climatology......95-97th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
mid 90s in the valleys and in the lower 80s in the mountains.
Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 90s in the valleys and
in the lower 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 90s in the valleys and
around 80 in the mountains. Winds generally less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 90s in the valleys and
in the upper 70s in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the upper 80s in the valleys and
in the mid 70s in the mountains.
=
$$
UTZ480-190030-
Uinta Mountains-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly cloudy (40-50% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....80-86 near 7000 feet.
72-80 near 9000 feet.
24 hr trend......4 degrees warmer.
Min humidity........11-21%.
24 hr trend......8% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......12700 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Partly cloudy (20-30% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....52-58 near 7000 feet.
43-53 near 9000 feet.
24 hr trend......2 degrees warmer.
Max humidity........22-32% near 7000 feet.
31-41% near 9000 feet.
24 hr trend......16% drier.
20-foot winds.......Downslope/downvalley 5-10 mph. Gusts up to 20
mph in the evening.
12K ft MSL winds....Southwest around 10 mph.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-92 near 7000 feet.
76-84 near 9000 feet.
24 hr trend......5 degrees warmer.
Min humidity........9-17%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph in the morning becoming
light and variable.
Mixing height.......13800 ft AGL.
Climatology......95-97th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the upper 50s in the valleys
and in the lower 50s in the mountains. Highs in the upper 80s in
the valleys and around 80 in the mountains. Winds generally less
than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s in the valleys and in the lower 50s in the
mountains. Highs in the mid 80s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and around 50 in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains. Winds generally less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and around 50 in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and in the upper 40s in the
mountains. Highs around 80 in the valleys and in the lower 70s in
the mountains.
=
$$
UTZ481-190030-
Western Ashley National Forest-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....80-87 near 7000 feet.
67-75 near 10000 feet.
24 hr trend......4 degrees warmer.
Min humidity........12-22%.
24 hr trend......7% drier near 7000 feet.
12% drier near 10000 feet.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......11900 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....54-60 near 7000 feet.
43-53 near 10000 feet.
24 hr trend......3 degrees warmer.
Max humidity........21-27% near 7000 feet.
23-33% near 10000 feet.
24 hr trend......15% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
.TUESDAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....84-92 near 7000 feet.
71-79 near 10000 feet.
24 hr trend......4 degrees warmer.
Min humidity........9-19%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......11900 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......940.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows around 60 in the valleys and in
the lower 50s in the mountains. Highs in the upper 80s in the
valleys and in the mid 70s in the mountains. Winds generally less
than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s in the valleys and in the lower 50s in the
mountains. Highs in the mid 80s in the valleys and in the lower
70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60 in the valleys and in the lower 50s in the
mountains. Highs in the lower 80s in the valleys and around 70 in
the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the upper 50s in the valleys and around 50 in the
mountains. Highs in the lower 80s in the valleys and in the upper
60s in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and in the upper 40s in the
mountains. Highs in the upper 70s in the valleys and in the mid
60s in the mountains.
=
$$
UTZ482-190030-
Western Uintah Basin-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....85-91 near 6000 feet.
77-83 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........9-13%.
24 hr trend......6% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14400 ft AGL.
Climatology......95-97th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....53-62 near 6000 feet.
57-63 near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........22-32% near 6000 feet.
19-27% near 8000 feet.
24 hr trend......13% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....89-95 near 6000 feet.
81-87 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........8-12%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......12900 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......950.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 90s in the valleys and in the mid 80s in the mountains.
Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s. Highs in the lower 90s in the valleys and
in the lower 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s. Highs in the upper 80s in the valleys and
in the lower 80s in the mountains. Winds generally less than
15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60. Highs in the upper 80s in the valleys and around
80 in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s in the valleys and
in the mid 70s in the mountains.
=
$$
UTZ483-190030-
Southern Ashley National Forest-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....82-88 near 7000 feet.
72-78 near 9000 feet.
24 hr trend......5 degrees warmer.
Min humidity........8-18%.
24 hr trend......9% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13600 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....54-64.
24 hr trend......4 degrees warmer.
Max humidity........18-28%.
24 hr trend......9% drier.
20-foot winds.......Downslope/downvalley 5-10 mph. Gusts up to 20
mph in the evening.
12K ft MSL winds....Southwest around 10 mph in the evening becoming
light and variable.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-92 near 7000 feet.
77-83 near 9000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-15%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13100 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......960.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs around
90 in the valleys and around 80 in the mountains. Winds generally
less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s. Highs in the upper 80s in the valleys and in
the upper 70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s. Highs in the mid 80s in the valleys and in
the mid 70s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the mid 60s in the valleys and around 60 in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s in the valleys and
around 70 in the mountains.
=
$$
UTZ484-190030-
Tavaputs Plateau-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....87-94 near 6000 feet.
77-83 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-15%.
24 hr trend......5% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14000 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....58-68 near 6000 feet.
54-64 near 8000 feet.
24 hr trend......3 degrees warmer.
Max humidity........20-30%.
24 hr trend......9% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 10 mph in the evening becoming
light and variable.
.TUESDAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-97 near 6000 feet.
81-87 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........6-12%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......12700 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......860.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the mid 60s in the valleys and
around 60 in the mountains. Highs in the mid 90s in the valleys
and in the mid 80s in the mountains. Winds generally less than
15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the lower 90s in the valleys and in the mid
80s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the lower 90s in the valleys and in the lower
80s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and around 60 in the
mountains. Highs around 90 in the valleys and around 80 in the
mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the mid 60s in the valleys and in the upper 50s in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains.
=
$$
UTZ488-190030-
Manti National Forest-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....80-90 near 6500 feet.
70-80 near 8500 feet.
24 hr trend......5 degrees warmer.
Min humidity........9-17%.
24 hr trend......7% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......13100 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....55-65 near 6500 feet.
49-59 near 8500 feet.
24 hr trend......4 degrees warmer.
Max humidity........18-28% near 6500 feet.
23-33% near 8500 feet.
24 hr trend......8% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....85-95 near 6500 feet.
76-86 near 8500 feet.
24 hr trend......4 degrees warmer.
Min humidity........9-17%.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......12700 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......980.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 60s in the valleys and in the upper 50s in the
mountains. Highs around 90 in the valleys and in the upper 70s in
the mountains. Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s in the valleys and in the upper 50s in the
mountains. Highs in the upper 80s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s in the valleys and in the upper 50s in the
mountains. Highs in the upper 80s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the lower 60s in the valleys and in the upper 50s in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 60 in the valleys and in the mid 50s in the
mountains. Highs in the lower 80s in the valleys and in the lower
70s in the mountains.
=
$$
UTZ489-190030-
San Rafael Swell-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-97 near 5000 feet.
81-87 near 7000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-14%.
24 hr trend......4% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......14200 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....58-68.
24 hr trend......3 degrees warmer.
Max humidity........17-27%.
24 hr trend......7% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph in the evening becoming
light and variable.
.TUESDAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....96-102 near 5000 feet.
85-91 near 7000 feet.
24 hr trend......4 degrees warmer.
Min humidity........5-11%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph in the morning becoming
light and variable.
Mixing height.......12300 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......850.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the mid 60s. Highs in the
upper 90s in the valleys and in the upper 80s in the mountains.
Winds generally less than 15 mph.
.THURSDAY...Mostly clear. Scattered showers and thunderstorms.
Lows in the upper 60s. Highs in the upper 90s in the valleys and
in the upper 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s. Highs in the upper 90s in the valleys and
in the upper 80s in the mountains. Winds generally less than
15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s. Highs in the mid 90s in the valleys and in
the mid 80s in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s. Highs around 90 in the valleys and in the
upper 70s in the mountains.
=
$$
UTZ492-190030-
Central Utah West Desert-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....90-96 near 5000 feet.
75-81 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........5-11%.
24 hr trend......4% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 15-20 mph.
Mixing height.......12600 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-66 near 5000 feet.
52-62 near 8000 feet.
24 hr trend......1 degree warmer.
Max humidity........21-31%.
24 hr trend......8% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
.TUESDAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly cloudy (20-30% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-100 near 5000 feet.
80-86 near 8000 feet.
24 hr trend......5 degrees warmer.
Min humidity........7-13%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......13900 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the mid 60s in the valleys and
in the lower 60s in the mountains. Highs in the upper 90s in the
valleys and in the lower 80s in the mountains. Winds generally
less than 15 mph.
.THURSDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the upper 60s in the valleys and in the
lower 60s in the mountains. Highs in the mid 90s in the valleys
and in the lower 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the mid 90s in the valleys and in the lower
80s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the mid 90s in the valleys and in the upper
70s in the mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the mid 60s in the valleys and around 60 in the mountains.
Highs in the lower 90s in the valleys and in the mid 70s in the
mountains.
=
$$
UTZ493-190030-
Central Utah Mountains-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....88-94 near 5000 feet.
77-84 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-15%.
24 hr trend......5% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 15-20 mph.
Mixing height.......14000 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....50-60.
24 hr trend......4 degrees warmer.
Max humidity........25-35%.
24 hr trend......9% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.
.TUESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly sunny (50-60% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-98 near 5000 feet.
80-87 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........9-17%.
24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......14200 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the upper 50s. Highs in the mid 90s in the
valleys and in the mid 80s in the mountains. Winds generally less
than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60. Highs in the mid 90s in the valleys and in the
lower 80s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Numerous rain showers and scattered thunderstorms. Lows
around 60. Highs in the mid 90s in the valleys and in the lower
80s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the upper 50s. Highs in the lower 90s in the valleys and
around 80 in the mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 50s. Highs in the upper 80s in the valleys and in
the mid 70s in the mountains.
=
$$
UTZ494-190030-
Henry Mountains-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-98 near 5000 feet.
76-86 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........6-10% near 5000 feet.
10-14% near 8000 feet.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......13700 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....61-71 near 5000 feet.
60-67 near 8000 feet.
24 hr trend......3 degrees warmer.
Max humidity........13-23%.
24 hr trend......5% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.
.TUESDAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
79-89 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........5-11%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......12600 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......840.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the upper 60s. Highs in the
upper 90s in the valleys and in the lower 80s in the mountains.
Winds generally less than 15 mph.
.THURSDAY...Mostly clear. Scattered rain showers and isolated
thunderstorms. Lows in the lower 70s in the valleys and in the
upper 60s in the mountains. Highs in the upper 90s in the valleys
and in the lower 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the lower 70s in the valleys and in the
upper 60s in the mountains. Highs in the upper 90s in the valleys
and in the lower 80s in the mountains. Winds generally less than
15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the lower 70s in the valleys and in the mid 60s in the
mountains. Highs in the mid 90s in the valleys and around 80 in
the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the mid 60s in the
mountains. Highs around 90 in the valleys and in the mid 70s in
the mountains.
=
$$
UTZ495-190030-
Color Country West Desert-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....89-95 near 5000 feet.
81-87 near 7000 feet.
24 hr trend......4 degrees warmer.
Min humidity........6-12%.
24 hr trend......5% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 20-25 mph.
Mixing height.......10800 ft AGL.
Climatology......70-80th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....51-61 near 5000 feet.
55-65 near 7000 feet.
24 hr trend......3 degrees warmer.
Max humidity........19-29% near 5000 feet.
14-24% near 7000 feet.
24 hr trend......13% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....South 10-15 mph.
.TUESDAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....93-99 near 5000 feet.
85-91 near 7000 feet.
24 hr trend......4 degrees warmer.
Min humidity........8-16%.
24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......13400 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the upper 50s in the valleys and in the mid 60s in the
mountains. Highs in the upper 90s in the valleys and in the upper
80s in the mountains. Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60 in the valleys and in the mid 60s in the
mountains. Highs in the mid 90s in the valleys and in the upper
80s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60 in the valleys and in the mid 60s in the
mountains. Highs in the mid 90s in the valleys and in the upper
80s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows around 60 in the valleys and in the mid 60s in the
mountains. Highs in the lower 90s in the valleys and in the mid
80s in the mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 50s in the valleys and in the mid 60s in the
mountains. Highs around 90 in the valleys and in the lower 80s in
the mountains.
=
$$
UTZ496-190030-
Color Country Mountains-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....83-93 near 6000 feet.
74-83 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........8-15%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 25 mph becoming around 15 mph
in the afternoon.
Mixing height.......11600 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....52-62.
24 hr trend......5 degrees warmer.
Max humidity........27-37% near 6000 feet.
20-30% near 8000 feet.
24 hr trend......11% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph becoming south after
midnight.
.TUESDAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly cloudy (40-50% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....88-96 near 6000 feet.
79-86 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........9-18%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13200 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Scattered rain showers and isolated
thunderstorms. Lows in the mid 60s in the valleys and in the
upper 50s in the mountains. Highs in the lower 90s in the valleys
and in the mid 80s in the mountains. Winds generally less than
15 mph.
.THURSDAY...Partly cloudy. Numerous rain showers and scattered
thunderstorms. Lows in the mid 60s in the valleys and in the
upper 50s in the mountains. Highs in the lower 90s in the valleys
and in the mid 80s in the mountains. Winds generally less than
15 mph.
.FRIDAY...Numerous rain showers and scattered thunderstorms. Lows
in the mid 60s in the valleys and around 60 in the mountains.
Highs in the lower 90s in the valleys and in the mid 80s in the
mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the mid 60s in the valleys and in the upper 50s in the
mountains. Highs in the upper 80s in the valleys and in the lower
80s in the mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the lower 60s in the valleys and in the upper 50s in the
mountains. Highs in the mid 80s in the valleys and in the upper
70s in the mountains.
=
$$
UTZ497-190030-
Mojave Desert-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....95-101 near 3000 feet.
81-88 near 6000 feet.
24 hr trend......3 degrees warmer.
Min humidity........7-11%.
24 hr trend......4% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South 20-25 mph.
Mixing height.......9700 ft AGL.
Climatology......40-50th Percentile.
Clearing Index......890.
.TONIGHT...
Sky/weather.........Mostly clear (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....72-82 near 3000 feet.
63-73 near 6000 feet.
24 hr trend......4 degrees warmer.
Max humidity........15-25%.
24 hr trend......7% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....South 10-15 mph.
.TUESDAY...
Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200,
then sunny (20-30% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....98-106 near 3000 feet.
85-92 near 6000 feet.
24 hr trend......4 degrees warmer.
Min humidity........8-14%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......11100 ft AGL.
Climatology......60-70th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Lows in the upper 70s in the valleys
and in the lower 70s in the mountains. Highs around 104 in the
valleys and in the lower 90s in the mountains. Winds generally
less than 15 mph.
.THURSDAY...Mostly clear. Scattered rain showers and isolated
thunderstorms. Lows around 80 in the valleys and in the lower 70s
in the mountains. Highs around 106 in the valleys and in the
lower 90s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the lower 80s in the valleys and in the
mid 70s in the mountains. Highs around 106 in the valleys and in
the lower 90s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the lower 80s in the valleys and in the lower 70s in the
mountains. Highs around 103 in the valleys and in the upper 80s
in the mountains.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
around 80 in the valleys and in the lower 70s in the mountains.
Highs around 101 in the valleys and in the upper 80s in the
mountains.
=
$$
UTZ498-190030-
Grand Staircase-
239 AM MDT Mon Aug 18 2025
.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-101 near 4000 feet.
87-93 near 6000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-11%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 20 mph.
Mixing height.......11900 ft AGL.
Climatology......70-80th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....63-73 near 4000 feet.
57-67 near 6000 feet.
24 hr trend......4 degrees warmer.
Max humidity........20-30%.
24 hr trend......4% drier near 4000 feet.
10% drier near 6000 feet.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.
.TUESDAY...
Sky/weather.........Sunny (20-30% cloud cover) until 1200, then
partly cloudy (20-30% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-104 near 4000 feet.
91-97 near 6000 feet.
24 hr trend......4 degrees warmer.
Min humidity........6-12%.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southeast around 10 mph.
Mixing height.......13000 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows in the lower 70s in the valleys and in the mid 60s in the
mountains. Highs around 102 in the valleys and in the mid 90s in
the mountains. Winds generally less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 70s in the valleys and in the mid 60s in the
mountains. Highs around 103 in the valleys and in the mid 90s in
the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 70s in the valleys and in the mid 60s in the
mountains. Highs around 102 in the valleys and in the mid 90s in
the mountains. Winds generally less than 15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 70s in the valleys and in the mid 60s in the
mountains. Highs in the upper 90s in the valleys and in the lower
90s in the mountains.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the lower 70s in the valleys and in the lower 60s in the
mountains. Highs in the mid 90s in the valleys and in the upper
80s in the mountains.
=
$$
.8-14 day outlook for Monday August 25 to Sunday August 31
Temperature... Below Normal
Precipitation... Above Normal
=
$$