Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Salt Lake City, UT

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6
422
FNUS55 KSLC 190809
FWFSLC

Fire Weather Planning Forecast for Utah
National Weather Service Salt Lake City UT
209 AM MDT Tue Aug 19 2025

...HOT AND DRY THROUGH MIDWEEK...MOISTURE INCREASES WEDNESDAY
INTO THURSDAY...

.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...Hotter, drier conditions will be the rule across the
region today as high pressure moves into the area. MId-level
moisture due to southerly flow around this ridge will increase
Wednesday, with high-based thunderstorms possible across the
southern mountains and northwestern Utah Wednesday afternoon and
evening. Strong, gusty microburst winds will be possible with
these thunderstorms.

Moisture will deepen through the atmosphere Thursday into Friday,
with thunderstorms transitioning from mainly dry to mainly wet
through this time. The chances of wetting rain will remain
elevated through the weekend and into early next week as this
longer duration monsoon surge continues.

***Thunderstorms imply strong, gusty and erratic winds***
***All winds are 20 foot, 10-minute averages***

UTZ478-200015-
Salt Lake Desert-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....89-98 near 5000 feet.
                    77-84 near 8000 feet.
   24 hr trend......5 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.......14700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....63-73.
   24 hr trend......5 degrees warmer.
Max humidity........26-36%.
   24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.

.WEDNESDAY...
Sky/weather.........Partly cloudy (35-45% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....10%.
CWR.................0%.
Max temperature.....90-99 near 5000 feet.
                    78-85 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-16% near 5000 feet.
                    14-20% near 8000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 15-20 mph.
Mixing height.......14500 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 mid 90s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.FRIDAY...Partly cloudy. 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. Winds generally
less than 15 mph.
.SATURDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the upper 60s in the valleys and in the
mid 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.
.SUNDAY...Mostly 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 upper 80s in the valleys
and in the mid 70s in the mountains.
.MONDAY...Mostly cloudy. 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 mid 80s in the valleys
and in the lower 70s in the mountains.
=

$$

UTZ479-200015-
Wasatch Mountains-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-99 near 5000 feet.
                    80-89 near 8000 feet.
   24 hr trend......5 degrees warmer.
Min humidity........6-14%.
   24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14700 ft AGL.
   Climatology......97-99th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly clear (20-30% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-66.
   24 hr trend......4 degrees warmer.
Max humidity........27-37% near 5000 feet.
                    21-31% near 8000 feet.
   24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest 10-15 mph.

.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-100 near 5000 feet.
                    80-90 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-20%.
   24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 10-15 mph.
Mixing height.......14600 ft AGL.
   Climatology......97-99th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered rain showers and isolated
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...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. Winds generally less than
15 mph.
.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.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s. Highs in the mid 80s in the valleys and in
the lower 70s in the mountains.
=

$$

UTZ480-200015-
Uinta Mountains-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
                    partly cloudy (40-50% cloud cover). Patchy
                    smoke until 1200. Areas of smoke after 1200.
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-92 near 7000 feet.
                    76-84 near 9000 feet.
   24 hr trend......4 degrees warmer.
Min humidity........8-16%.
   24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......13900 ft AGL.
   Climatology......95-97th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-63 near 7000 feet.
                    47-57 near 9000 feet.
   24 hr trend......4 degrees warmer.
Max humidity........21-31% near 7000 feet.
                    25-35% near 9000 feet.
   24 hr trend......1% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly sunny (60-70% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-92 near 7000 feet.
                    77-85 near 9000 feet.
   24 hr trend......1 degree warmer.
Min humidity........13-19%.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14000 ft AGL.
   Climatology......95-97th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 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 upper 50s in the valleys and around 50 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.
.SATURDAY...Mostly cloudy. Scattered showers and 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 mid
70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and around 50 in the
mountains. Highs around 80 in the valleys and in the lower 70s in
the mountains.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
mid 50s in the valleys and in the mid 40s in the mountains. Highs
in the mid 70s in the valleys and in the upper 60s in the
mountains.
=

$$

UTZ481-200015-
Western Ashley National Forest-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
                    partly cloudy (45-55% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....85-92 near 7000 feet.
                    72-79 near 10000 feet.
   24 hr trend......4 degrees warmer.
Min humidity........8-18%.
   24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......12600 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover). Patchy
                    smoke until 2400.
Chance lightning....0%.
CWR.................0%.
Min temperature.....57-63 near 7000 feet.
                    45-55 near 10000 feet.
   24 hr trend......3 degrees warmer.
Max humidity........18-24% near 7000 feet.
                    19-29% near 10000 feet.
   24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming south around 10 mph
                    after midnight.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly sunny (50-60% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-93 near 7000 feet.
                    72-80 near 10000 feet.
   24 hr trend......1 degree warmer.
Min humidity........11-21%.
   24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......12600 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s in the valleys and in the mid 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 mid 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 in the lower 50s in the
mountains. Highs in the lower 80s in the valleys and in the upper
60s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Numerous thunderstorms and scattered rain showers. Lows
in the upper 50s in the valleys and around 50 in the mountains.
Highs in the upper 70s in the valleys and in the mid 60s in the
mountains.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
mid 50s in the valleys and in the mid 40s in the mountains. Highs
in the mid 70s in the valleys and in the lower 60s in the
mountains.
=

$$

UTZ482-200015-
Western Uintah Basin-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....89-95 near 6000 feet.
                    81-87 near 8000 feet.
   24 hr trend......3 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 10 mph.
Mixing height.......14300 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.....54-64.
   24 hr trend......2 degrees warmer.
Max humidity........19-29%.
   24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming south around 10 mph
                    after midnight.

.WEDNESDAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
                    partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....91-97 near 6000 feet.
                    82-88 near 8000 feet.
   24 hr trend......2 degrees warmer.
Min humidity........10-14%.
   24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......14200 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 around 90 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 around 60. Highs in the upper 80s in the valleys and around
80 in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. Highs in the mid 80s in the valleys and in
the mid 70s in the mountains.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s. Highs around 80 in the valleys and in the
lower 70s in the mountains.
=

$$

UTZ483-200015-
Southern Ashley National Forest-
209 AM MDT Tue Aug 19 2025

.TODAY...
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........7-14%.
   24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13800 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.....55-65.
   24 hr trend......1 degree warmer.
Max humidity........14-20% near 7000 feet.
                    16-24% near 9000 feet.
   24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming south around 10 mph
                    after midnight.

.WEDNESDAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
                    partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....88-94 near 7000 feet.
                    77-83 near 9000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-14% near 7000 feet.
                    13-19% near 9000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.
Mixing height.......13600 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 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. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered 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.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s in the valleys and in the upper 50s in the
mountains. Highs around 80 in the valleys and around 70 in the
mountains.
.MONDAY...Rain showers and scattered thunderstorms. Lows around
60 in the valleys and in the mid 50s in the mountains. Highs in
the upper 70s in the valleys and in the upper 60s in the
mountains.
=

$$

UTZ484-200015-
Tavaputs Plateau-
209 AM MDT Tue Aug 19 2025

.TODAY...
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......5 degrees warmer.
Min humidity........6-12%.
   24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South 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.....60-69 near 6000 feet.
                    56-66 near 8000 feet.
   24 hr trend......1 degree warmer.
Max humidity........13-19% near 6000 feet.
                    17-25% near 8000 feet.
   24 hr trend......2% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-99 near 6000 feet.
                    81-87 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........9-17%.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......13400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000.

.FORECAST DAYS 3 THROUGH 7...
.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 mid 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...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs around 90 in the valleys and around 80 in the
mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and 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.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
lower 60s 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.
=

$$

UTZ488-200015-
Manti National Forest-
209 AM MDT Tue Aug 19 2025

.TODAY...
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........8-16%.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South 10-15 mph.
Mixing height.......13400 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly clear (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....57-67 near 6500 feet.
                    51-61 near 8500 feet.
   24 hr trend......3 degrees warmer.
Max humidity........18-27% near 6500 feet.
                    22-32% near 8500 feet.
   24 hr trend......1% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming south around 10 mph
                    after midnight.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly cloudy (40-50% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....85-95 near 6500 feet.
                    76-86 near 8500 feet.
   24 hr trend......Unchanged.
Min humidity........12-20%.
   24 hr trend......5% wetter.
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.......12700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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. Winds generally less than 15 mph.
.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.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
upper 50s in the valleys and in the lower 50s in the mountains.
Highs in the upper 70s in the valleys and in the upper 60s in the
mountains.
=

$$

UTZ489-200015-
San Rafael Swell-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
                    85-91 near 7000 feet.
   24 hr trend......4 degrees warmer.
Min humidity........5-11%.
   24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......990.

.TONIGHT...
Sky/weather.........Mostly clear (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....59-69.
   24 hr trend......2 degrees warmer.
Max humidity........16-26% near 5000 feet.
                    15-21% near 7000 feet.
   24 hr trend......1% drier.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly cloudy (25-35% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....96-102 near 5000 feet.
                    86-92 near 7000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-16%.
   24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......12400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......910.

.FORECAST DAYS 3 THROUGH 7...
.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 upper 60s. Highs in the mid 90s in the valleys and in
the mid 80s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 60s. Highs around 90 in the valleys and around
80 in the mountains.
.MONDAY...Numerous rain showers and scattered thunderstorms. Lows
in the lower 60s. Highs in the upper 80s in the valleys and in
the upper 70s in the mountains.
=

$$

UTZ492-200015-
Central Utah West Desert-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-100 near 5000 feet.
                    80-86 near 8000 feet.
   24 hr trend......4 degrees warmer.
Min humidity........7-11%.
   24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......15100 ft AGL.
   Climatology......95-97th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....61-71 near 5000 feet.
                    56-66 near 8000 feet.
   24 hr trend......6 degrees warmer.
Max humidity........25-35%.
   24 hr trend......7% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.

.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....10%.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
                    80-86 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........9-15% near 5000 feet.
                    13-19% near 8000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South 10-15 mph.
Mixing height.......14200 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 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. Winds generally less than 15 mph.
.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.
.MONDAY...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 upper 80s in the valleys and in the lower
70s in the mountains.
=

$$

UTZ493-200015-
Central Utah Mountains-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
                    partly cloudy (45-55% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-98 near 5000 feet.
                    80-88 near 8000 feet.
   24 hr trend......3 degrees warmer.
Min humidity........8-16%.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......15000 ft AGL.
   Climatology......97-99th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (50-60% cloud cover) until 2400,
                    then mostly clear (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....54-64.
   24 hr trend......4 degrees warmer.
Max humidity........30-40%.
   24 hr trend......5% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.WEDNESDAY...
Sky/weather.........Sunny (20-30% cloud cover) until 1200, then
                    partly sunny (60-70% cloud cover). Scattered
                    rain showers and isolated thunderstorms after
                    1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....93-99 near 5000 feet.
                    80-88 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........13-23%.
   24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Partly cloudy. Numerous rain showers and scattered
thunderstorms. Lows in the lower 60s. 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...Rain showers and scattered 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.
.SUNDAY...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.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
mid 50s. Highs in the mid 80s in the valleys and in the lower 70s
in the mountains.
=

$$

UTZ494-200015-
Henry Mountains-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (0-10% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-100 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....South around 10 mph in the morning becoming
                    light and variable.
Mixing height.......14000 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......930.

.TONIGHT...
Sky/weather.........Mostly clear (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....62-72 near 5000 feet.
                    61-68 near 8000 feet.
   24 hr trend......2 degrees warmer.
Max humidity........17-27% near 5000 feet.
                    21-30% near 8000 feet.
   24 hr trend......5% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.WEDNESDAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly cloudy (35-45% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
                    79-89 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........11-15% near 5000 feet.
                    16-22% near 8000 feet.
   24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......12000 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......900.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Mostly clear. Scattered showers and thunderstorms.
Lows around 70. 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 showers and 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 in the upper
70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs around 90 in the valleys and in the mid 70s in
the mountains.
.MONDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 60s in the valleys and in the lower 60s in the
mountains. Highs in the upper 80s in the valleys and in the lower
70s in the mountains.
=

$$

UTZ495-200015-
Color Country West Desert-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-100 near 5000 feet.
                    86-92 near 7000 feet.
   24 hr trend......5 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.......14600 ft AGL.
   Climatology......95-97th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....57-67.
   24 hr trend......6 degrees warmer.
Max humidity........30-40% near 5000 feet.
                    23-33% near 7000 feet.
   24 hr trend......10% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.

.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
                    87-93 near 7000 feet.
   24 hr trend......1 degree warmer.
Min humidity........11-19%.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......13700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows around 60 in the valleys and in the upper 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.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows around 60 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.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the lower 60s in the valleys and in the mid 60s 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.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 50s in the valleys and in the mid 60s in the
mountains. Highs in the lower 90s in the valleys and in the lower
80s in the mountains.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
mid 50s in the valleys and in the lower 60s in the mountains.
Highs in the upper 80s in the valleys and in the upper 70s in the
mountains.
=

$$

UTZ496-200015-
Color Country Mountains-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
                    partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....88-96 near 6000 feet.
                    80-87 near 8000 feet.
   24 hr trend......4 degrees warmer.
Min humidity........8-16%.
   24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......14000 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....55-65.
   24 hr trend......4 degrees warmer.
Max humidity........36-46% near 6000 feet.
                    26-36% near 8000 feet.
   24 hr trend......9% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming southeast around 10
                    mph after midnight.

.WEDNESDAY...
Sky/weather.........Partly cloudy (20-30% cloud cover) until 1200,
                    then partly sunny (50-60% cloud cover).
                    Scattered showers and thunderstorms after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....90-97 near 6000 feet.
                    80-87 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........13-23%.
   24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 10 mph.
Mixing height.......12500 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...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.
.FRIDAY...Mostly cloudy. Scattered showers and 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 lower
80s in the mountains. Winds generally less than 15 mph.
.SATURDAY...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. Winds generally less than 15 mph.
.SUNDAY...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.
.MONDAY...Rain showers and scattered thunderstorms. Lows in the
lower 60s in the valleys and in the mid 50s in the mountains.
Highs in the lower 80s in the valleys and in the mid 70s in the
mountains.
=

$$

UTZ497-200015-
Mojave Desert-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (5-15% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....99-106 near 3000 feet.
                    86-93 near 6000 feet.
   24 hr trend......5 degrees warmer.
Min humidity........8-12%.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....South around 15 mph.
Mixing height.......12000 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....76-86 near 3000 feet.
                    67-77 near 6000 feet.
   24 hr trend......5 degrees warmer.
Max humidity........22-32%.
   24 hr trend......8% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southeast 10-15 mph.

.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200,
                    then sunny (10-20% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....100-108 near 3000 feet.
                    87-94 near 6000 feet.
   24 hr trend......1 degree warmer.
Min humidity........11-17%.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southeast around 10 mph.
Mixing height.......11400 ft AGL.
   Climatology......60-70th Percentile.
Clearing Index......980.

.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Mostly clear. Isolated showers and 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 showers and thunderstorms.
Lows in the lower 80s in the valleys and in the mid 70s in the
mountains. Highs around 105 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 mid 70s in the
mountains. Highs around 103 in the valleys and in the upper 80s
in the mountains. Winds generally less than 15 mph.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 70s 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.
.MONDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 70s in the valleys and in the upper 60s in the
mountains. Highs in the upper 90s in the valleys and in the mid
80s in the mountains.
=

$$

UTZ498-200015-
Grand Staircase-
209 AM MDT Tue Aug 19 2025

.TODAY...
Sky/weather.........Sunny (15-25% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....94-104 near 4000 feet.
                    90-98 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....South around 10 mph in the morning becoming
                    light and variable.
Mixing height.......14200 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....66-75 near 4000 feet.
                    59-69 near 6000 feet.
   24 hr trend......3 degrees warmer.
Max humidity........21-31% near 4000 feet.
                    26-36% near 6000 feet.
   24 hr trend......9% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming southeast around 10
                    mph after midnight.

.WEDNESDAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
                    partly cloudy (40-50% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....94-104 near 4000 feet.
                    90-99 near 6000 feet.
   24 hr trend......1 degree warmer.
Min humidity........11-17%.
   24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southeast around 10 mph.
Mixing height.......12400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000.

.FORECAST DAYS 3 THROUGH 7...
.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. Numerous rain showers and scattered
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
lower 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. Winds generally less than 15 mph.
.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.
.MONDAY...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 lower 90s in the valleys and in the mid
80s in the mountains.
=

$$

.8-14 day outlook for Tuesday August 26 to Monday September 01
Temperature... Near Normal
Precipitation... Above Normal
=

$$