325
FNUS55 KSLC 210941
FWFSLC

Fire Weather Planning Forecast for Utah
National Weather Service Salt Lake City UT
341 AM MDT Thu Aug 21 2025

...MONSOON MOISTURE RETURNS...

.BROADCAST DISCUSSION...Monsoon moisture will continue to increase
over the area into early next week, bringing increasing coverage
of showers and thunderstorms. The storms will be initially on the
dry side, with increasing chances of wetting rains by the
weekend.

.DISCUSSION...High pressure remains centered over the Four
Corners, where it will remain for the next several days. This will
keep southerly flow over Utah that will draw monsoonal moisture
northward. Coverage of showers and thunderstorms will increase
noticeably today, particularly over southern Utah. However, given
that the moisture will initially be high based, chances of
wetting rains will be relatively low. As the moisture continues to
increase for the weekend and into early next week, wetting rains
will become more likely as coverage of storms continues to
increase. The increase in moisture will also bring a gradual
decrease in temperatures, with highs falling to or below seasonal
normals by early next week. Away from thunderstorms, winds will
remain generally light and terrain driven over the next few days.

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

UTZ478-220015-
Salt Lake Desert-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (65-75% cloud cover). North of
                    I-80, isolated rain showers until 1200. South
                    of I-80, isolated rain showers. Isolated
                    thunderstorms after 1200.
Chance lightning....10% increasing to 20% in the afternoon.
CWR.................10% north of I-80 and 0% south of I-80.
Max temperature.....87-96 near 5000 feet.
                    74-82 near 8000 feet.
   24 hr trend......2 degrees cooler.
Min humidity........14-24% near 5000 feet.
                    18-28% near 8000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......11900 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......940.

.TONIGHT...
Sky/weather.........Mostly cloudy (65-75% cloud cover). South of
                    I-80, isolated showers and thunderstorms until
                    2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....62-72 near 5000 feet.
                    60-68 near 8000 feet.
   24 hr trend......1 degree cooler.
Max humidity........40-50%.
   24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.

.FRIDAY...
Sky/weather.........Partly sunny (55-65% cloud cover). North of
                    I-80, isolated showers and thunderstorms after
                    1200. South of I-80, isolated rain showers
                    until 1200, then scattered showers and
                    thunderstorms.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................0% north of I-80 and 10% south of I-80.
Max temperature.....88-97 near 5000 feet.
                    75-82 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........13-23% near 5000 feet.
                    17-27% near 8000 feet.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......11700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......900.

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

$$

UTZ479-220015-
Wasatch Mountains-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (60-70% cloud cover). North of
                    I-80, isolated thunderstorms until 1200.
                    Scattered rain showers. Scattered thunderstorms
                    after 1200. South of I-80, isolated rain
                    showers until 1200, then scattered dry
                    thunderstorms and rain showers.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10% north of I-80 and 0% south of I-80.
Max temperature.....88-96 near 5000 feet.
                    78-88 near 8000 feet.
   24 hr trend......3 degrees cooler.
Min humidity........17-25% near 5000 feet.
                    19-29% near 8000 feet.
   24 hr trend......6% wetter near 5000 feet.
                    11% wetter near 8000 feet.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......11700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
                    showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................0%.
Min temperature.....57-67.
   24 hr trend......2 degrees cooler.
Max humidity........51-61% near 5000 feet.
                    44-54% near 8000 feet.
   24 hr trend......6% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Scattered
                    showers and thunderstorms. North of I-80,
                    isolated rain showers until 1200, south of
                    I-80, isolated showers and thunderstorms until
                    1200, scattered showers and thunderstorms after
                    1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....90-97 near 5000 feet.
                    78-86 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........17-23% near 5000 feet.
                    22-32% near 8000 feet.
   24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......12100 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

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

$$

UTZ480-220015-
Uinta Mountains-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80% cloud cover). Patchy
                    smoke. Isolated rain showers until 1200.
                    Scattered dry thunderstorms and rain showers
                    after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................20%.
Max temperature.....82-89 near 7000 feet.
                    72-80 near 9000 feet.
   24 hr trend......6 degrees cooler.
Min humidity........24-34%.
   24 hr trend......16% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......9900 ft AGL.
   Climatology......60-70th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover). Isolated
                    showers and thunderstorms until 2400. Patchy
                    smoke.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................10%.
Min temperature.....57-63 near 7000 feet.
                    47-57 near 9000 feet.
   24 hr trend......2 degrees cooler.
Max humidity........47-57% near 7000 feet.
                    58-68% near 9000 feet.
   24 hr trend......14% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Patchy
                    smoke. Isolated showers and thunderstorms until
                    1200. Scattered showers and thunderstorms after
                    1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................20%.
Max temperature.....83-89 near 7000 feet.
                    72-81 near 9000 feet.
   24 hr trend......Unchanged.
Min humidity........27-37%.
   24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......10800 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

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

$$

UTZ481-220015-
Western Ashley National Forest-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80% cloud cover). Patchy
                    smoke. Scattered dry thunderstorms and rain
                    showers after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................20%.
Max temperature.....83-90 near 7000 feet.
                    69-78 near 10000 feet.
   24 hr trend......4 degrees cooler.
Min humidity........18-25% near 7000 feet.
                    23-31% near 10000 feet.
   24 hr trend......16% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......9600 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover). Isolated
                    showers and thunderstorms until 2400. Patchy
                    smoke.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................10%.
Min temperature.....58-64 near 7000 feet.
                    46-56 near 10000 feet.
   24 hr trend......3 degrees cooler.
Max humidity........40-50% near 7000 feet.
                    46-56% near 10000 feet.
   24 hr trend......13% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Patchy
                    smoke. Isolated showers and thunderstorms until
                    1200. Numerous rain showers and scattered
                    thunderstorms after 1200.
Chance lightning....10% increasing to 50% in the afternoon.
CWR.................30%.
Max temperature.....81-87 near 7000 feet.
                    67-75 near 10000 feet.
   24 hr trend......2 degrees cooler.
Min humidity........24-30% near 7000 feet.
                    29-36% near 10000 feet.
   24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......8900 ft AGL.
   Climatology......50-60th Percentile.
Clearing Index......1000+.

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

$$

UTZ482-220015-
Western Uintah Basin-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (65-75% cloud cover). Scattered
                    dry thunderstorms and rain showers after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....89-95 near 6000 feet.
                    80-86 near 8000 feet.
   24 hr trend......3 degrees cooler.
Min humidity........16-23%.
   24 hr trend......9% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......12600 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Patchy
                    smoke until 2400. Isolated rain showers and dry
                    thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....56-66.
   24 hr trend......2 degrees cooler.
Max humidity........41-51%.
   24 hr trend......13% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Isolated
                    showers and thunderstorms until 1200, then
                    scattered rain showers and dry thunderstorms.
Chance lightning....10% increasing to 50% in the afternoon.
CWR.................20%.
Max temperature.....86-92 near 6000 feet.
                    78-84 near 8000 feet.
   24 hr trend......3 degrees cooler.
Min humidity........23-29%.
   24 hr trend......7% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......9500 ft AGL.
   Climatology......60-70th Percentile.
Clearing Index......1000+.

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

$$

UTZ483-220015-
Southern Ashley National Forest-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Scattered
                    dry thunderstorms and rain showers after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....86-92 near 7000 feet.
                    76-82 near 9000 feet.
   24 hr trend......2 degrees cooler.
Min humidity........17-27%.
   24 hr trend......9% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......11800 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
                    rain showers and dry thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....56-66.
   24 hr trend......3 degrees cooler.
Max humidity........39-49%.
   24 hr trend......12% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (65-75% cloud cover). Isolated
                    showers and thunderstorms until 1200, then
                    numerous rain showers and scattered dry
                    thunderstorms.
Chance lightning....10% increasing to 50% in the afternoon.
CWR.................20%.
Max temperature.....83-89 near 7000 feet.
                    74-80 near 9000 feet.
   24 hr trend......2 degrees cooler.
Min humidity........23-27% near 7000 feet.
                    27-37% near 9000 feet.
   24 hr trend......8% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph.
Mixing height.......10500 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

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

$$

UTZ484-220015-
Tavaputs Plateau-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200,
                    then partly sunny (60-70% cloud cover).
                    Isolated rain showers and dry thunderstorms
                    after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....93-99 near 6000 feet.
                    81-87 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........13-19% near 6000 feet.
                    15-24% near 8000 feet.
   24 hr trend......7% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......13200 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
                    rain showers and dry thunderstorms until 2400.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................0%.
Min temperature.....63-72 near 6000 feet.
                    58-68 near 8000 feet.
   24 hr trend......1 degree cooler.
Max humidity........33-43% near 6000 feet.
                    37-47% near 8000 feet.
   24 hr trend......12% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Scattered
                    dry thunderstorms and rain showers after 1200.
Chance lightning....10% increasing to 50% in the afternoon.
CWR.................20%.
Max temperature.....88-94 near 6000 feet.
                    79-85 near 8000 feet.
   24 hr trend......3 degrees cooler.
Min humidity........21-31%.
   24 hr trend......8% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......10500 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

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

$$

UTZ488-220015-
Manti National Forest-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Scattered
                    dry thunderstorms and rain showers after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....84-94 near 6500 feet.
                    75-84 near 8500 feet.
   24 hr trend......1 degree cooler.
Min humidity........16-22% near 6500 feet.
                    18-28% near 8500 feet.
   24 hr trend......9% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......11600 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
                    showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................0%.
Min temperature.....60-70 near 6500 feet.
                    54-64 near 8500 feet.
   24 hr trend......1 degree cooler.
Max humidity........37-47% near 6500 feet.
                    45-55% near 8500 feet.
   24 hr trend......8% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Mostly cloudy (65-75% cloud cover). Isolated
                    showers and thunderstorms until 1200, then
                    numerous rain showers and scattered dry
                    thunderstorms.
Chance lightning....10% increasing to 50% in the afternoon.
CWR.................10%.
Max temperature.....83-93 near 6500 feet.
                    73-83 near 8500 feet.
   24 hr trend......1 degree cooler.
Min humidity........19-28% near 6500 feet.
                    23-33% near 8500 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming west around 10 mph
                    in the afternoon.
Mixing height.......10700 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

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

$$

UTZ489-220015-
San Rafael Swell-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (35-45% cloud cover) until 1200,
                    then mostly cloudy (70-80% cloud cover).
                    Isolated showers and thunderstorms after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....97-103 near 5000 feet.
                    87-93 near 7000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-14% near 5000 feet.
                    13-19% near 7000 feet.
   24 hr trend......5% wetter.
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.......14200 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
                    showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................0%.
Min temperature.....64-74.
   24 hr trend......Unchanged.
Max humidity........34-44%.
   24 hr trend......7% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200,
                    then mostly cloudy (70-80% cloud cover).
                    Scattered rain showers and dry thunderstorms
                    after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....95-101 near 5000 feet.
                    85-91 near 7000 feet.
   24 hr trend......2 degrees cooler.
Min humidity........12-18% near 5000 feet.
                    17-24% near 7000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming northwest around 10
                    mph in the afternoon.
Mixing height.......11700 ft AGL.
   Climatology......70-80th Percentile.
Clearing Index......1000+.

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

$$

UTZ492-220015-
Central Utah West Desert-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly sunny (55-65% cloud cover). Isolated
                    showers and thunderstorms after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....93-99 near 5000 feet.
                    79-85 near 8000 feet.
   24 hr trend......1 degree cooler.
Min humidity........13-19% near 5000 feet.
                    17-25% near 8000 feet.
   24 hr trend......5% wetter.
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 cloudy (60-70% cloud cover). Isolated
                    showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 10% after midnight.
CWR.................10%.
Min temperature.....62-72 near 5000 feet.
                    57-67 near 8000 feet.
   24 hr trend......1 degree cooler.
Max humidity........42-52%.
   24 hr trend......6% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph.

.FRIDAY...
Sky/weather.........Partly sunny (55-65% cloud cover). Scattered
                    showers and thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....94-100 near 5000 feet.
                    80-86 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........12-20% near 5000 feet.
                    18-28% near 8000 feet.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......13300 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...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.
.SUNDAY...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 lower 90s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.MONDAY...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. Winds generally less than 15 mph.
.TUESDAY...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 upper 60s in the
mountains.
.WEDNESDAY...Numerous rain showers and scattered thunderstorms.
Lows in the upper 50s in the valleys and in the mid 50s in the
mountains. Highs around 80 in the valleys and in the mid 60s in
the mountains.
=

$$

UTZ493-220015-
Central Utah Mountains-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200,
                    then mostly cloudy (75-85% cloud cover).
                    Scattered dry thunderstorms and rain showers
                    after 1200.
Chance lightning....0% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....92-98 near 5000 feet.
                    80-87 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........17-27%.
   24 hr trend......5% wetter.
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......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80% cloud cover) until 2400,
                    then partly cloudy (30-40% cloud cover).
                    Scattered rain showers and isolated
                    thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................10%.
Min temperature.....55-65.
   24 hr trend......1 degree cooler.
Max humidity........49-57% near 5000 feet.
                    45-55% near 8000 feet.
   24 hr trend......6% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (20-30% cloud cover) until 1200,
                    then cloudy (85-95% cloud cover). Rain showers
                    and scattered dry thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................20%.
Max temperature.....92-98 near 5000 feet.
                    80-86 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........19-29%.
   24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......11700 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

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

$$

UTZ494-220015-
Henry Mountains-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (25-35% 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.....96-102 near 5000 feet.
                    81-91 near 8000 feet.
   24 hr trend......1 degree warmer.
Min humidity........10-14% near 5000 feet.
                    16-22% near 8000 feet.
   24 hr trend......3% wetter near 5000 feet.
                    8% wetter near 8000 feet.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......14500 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (65-75% cloud cover) until 2400,
                    then partly cloudy (20-30% cloud cover).
                    Isolated showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....66-76 near 5000 feet.
                    64-71 near 8000 feet.
   24 hr trend......Unchanged.
Max humidity........29-39%.
   24 hr trend......4% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200,
                    then mostly cloudy (70-80% cloud cover).
                    Scattered showers and thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....95-101 near 5000 feet.
                    80-90 near 8000 feet.
   24 hr trend......1 degree cooler.
Min humidity........12-18% near 5000 feet.
                    19-25% near 8000 feet.
   24 hr trend......3% wetter.
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......1000+.

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

$$

UTZ495-220015-
Color Country West Desert-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200,
                    then partly sunny (60-70% cloud cover).
                    Scattered showers and thunderstorms after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....94-100 near 5000 feet.
                    86-92 near 7000 feet.
   24 hr trend......1 degree warmer.
Min humidity........15-23%.
   24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 10-15 mph.
Mixing height.......13700 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400,
                    then mostly clear (15-25% cloud cover).
                    Scattered rain showers and isolated
                    thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................10%.
Min temperature.....59-69.
   24 hr trend......1 degree cooler.
Max humidity........45-55% near 5000 feet.
                    37-47% near 7000 feet.
   24 hr trend......11% wetter near 5000 feet.
                    6% wetter near 7000 feet.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 10 mph in the evening becoming
                    light and variable.

.FRIDAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
                    mostly cloudy (80-90% cloud cover). Numerous
                    rain showers and scattered thunderstorms after
                    1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....95-101 near 5000 feet.
                    86-92 near 7000 feet.
   24 hr trend......Unchanged.
Min humidity........14-22%.
   24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable becoming west around 10 mph
                    in the afternoon.
Mixing height.......13400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

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

$$

UTZ496-220015-
Color Country Mountains-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200,
                    then mostly cloudy (70-80% cloud cover).
                    Scattered dry thunderstorms and rain showers
                    after 1200.
Chance lightning....0% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....90-97 near 6000 feet.
                    80-89 near 8000 feet.
   24 hr trend......Unchanged.
Min humidity........15-25%.
   24 hr trend......4% 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.......13000 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400,
                    then mostly clear (15-25% cloud cover).
                    Scattered rain showers and isolated
                    thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....58-68.
   24 hr trend......Unchanged.
Max humidity........52-62% near 6000 feet.
                    40-50% near 8000 feet.
   24 hr trend......4% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200,
                    then cloudy (85-95% cloud cover). Rain showers
                    and scattered dry thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................30%.
Max temperature.....88-95 near 6000 feet.
                    80-88 near 8000 feet.
   24 hr trend......1 degree cooler.
Min humidity........17-27%.
   24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......11800 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

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

$$

UTZ497-220015-
Mojave Desert-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........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.....103-109 near 3000 feet.
                    89-96 near 6000 feet.
   24 hr trend......2 degrees warmer.
Min humidity........11-15% near 3000 feet.
                    15-19% near 6000 feet.
   24 hr trend......1% 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.......13400 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Partly cloudy (20-30% cloud cover). Isolated
                    showers and thunderstorms until 2400.
Chance lightning....10% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....79-89 near 3000 feet.
                    70-80 near 6000 feet.
   24 hr trend......1 degree warmer.
Max humidity........27-37%.
   24 hr trend......1% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (25-35% 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.................10%.
Max temperature.....103-110 near 3000 feet.
                    90-96 near 6000 feet.
   24 hr trend......1 degree warmer.
Min humidity........12-16% near 3000 feet.
                    16-20% near 6000 feet.
   24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......13900 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.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 104 in the valleys and in the lower 90s
in the mountains. Winds generally less than 15 mph.
.SUNDAY...Numerous rain showers and scattered thunderstorms. Lows
around 80 in the valleys and in the lower 70s in the mountains.
Highs around 100 in the valleys and in the upper 80s in the
mountains. Winds generally less than 15 mph.
.MONDAY...Numerous rain showers and scattered thunderstorms. Lows
in the upper 70s in the valleys and around 70 in the mountains.
Highs in the upper 90s in the valleys and in the mid 80s in the
mountains. Winds generally less than 15 mph.
.TUESDAY...Rain showers and scattered thunderstorms. Lows in the
mid 70s in the valleys and in the upper 60s in the mountains.
Highs in the lower 90s in the valleys and in the upper 70s in the
mountains.
.WEDNESDAY...Numerous rain showers and scattered thunderstorms.
Lows in the lower 70s 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.
=

$$

UTZ498-220015-
Grand Staircase-
341 AM MDT Thu Aug 21 2025

.TODAY...
Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200,
                    then partly sunny (55-65% cloud cover).
                    Scattered showers and thunderstorms after 1200.
Chance lightning....0% increasing to 30% in the afternoon.
CWR.................0%.
Max temperature.....97-107 near 4000 feet.
                    92-100 near 6000 feet.
   24 hr trend......1 degree warmer.
Min humidity........8-14% near 4000 feet.
                    13-17% near 6000 feet.
   24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......14700 ft AGL.
   Climatology......90-95th Percentile.
Clearing Index......1000+.

.TONIGHT...
Sky/weather.........Mostly cloudy (45-55% cloud cover) until 2400,
                    then partly cloudy (30-40% cloud cover).
                    Isolated showers and thunderstorms until 2400.
Chance lightning....20% decreasing to 0% after midnight.
CWR.................0%.
Min temperature.....69-78 near 4000 feet.
                    62-72 near 6000 feet.
   24 hr trend......1 degree warmer.
Max humidity........26-36% near 4000 feet.
                    32-42% near 6000 feet.
   24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Light and variable.

.FRIDAY...
Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200,
                    then mostly cloudy (75-85% cloud cover).
                    Numerous rain showers and scattered
                    thunderstorms after 1200.
Chance lightning....0% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....96-106 near 4000 feet.
                    92-100 near 6000 feet.
   24 hr trend......1 degree cooler.
Min humidity........11-19%.
   24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Light and variable.
Mixing height.......13000 ft AGL.
   Climatology......80-90th Percentile.
Clearing Index......1000+.

.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 70s in the valleys and in the mid 60s in the
mountains. Highs around 101 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 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.
.MONDAY...Numerous rain showers and scattered thunderstorms. Lows
around 70 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.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 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.
.WEDNESDAY...Numerous rain showers and scattered thunderstorms.
Lows in the upper 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.
=

$$

.8-14 day outlook for Thursday August 28 to Wednesday September 03
Temperature... Below Normal
Precipitation... Above Normal
=

$$