Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
258
FNUS55 KSLC 130857
FWFSLC
Fire Weather Planning Forecast for Utah
National Weather Service Salt Lake City UT
257 AM MDT Wed Aug 13 2025
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 479...
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING FOR THUNDERSTORMS AND GUSTY OUTFLOW WINDS FOR
FIRE WEATHER ZONES 478, 479, 480, 481, 483, 484, 488, 489, 493,
494, 496, AND 498...
.BROADCAST DISCUSSION...Gusty winds and low humidities will
bring critical fire weather conditions to fire weather zone 479
Wednesday. Moisture will increase by Thursday bringing increasing
chances for high based thunderstorms. Scattered lightning after an
extended dry period will bring critical fire weather conditions
to northern and eastern Utah Thursday.
.DISCUSSION...High pressure over the area with an approaching
shortwave will keep relative humidity low with gusty west winds
across the Wasatch Mountains will create critical fire weather
conditions on Wednesday afternoon.
As this high pressure becomes oriented over the Four Corners
region mid-level moisture will advect into the area resulting in
more widespread diurnal high-based convection developing by
Thursday. Any storms that do develop will be capable of producing
gusty and erratic winds along with frequent lightning. Given many
areas have not seen appreciable precipitation in a significant
period of time and fuels are very dry, wildfire starts are
possible with any lightning strikes. A Fire Weather Watch has been
issued for these areas Thursday afternoon and early evening.
By Friday and Saturday more moisture should advect into the lower
levels to help limit critical fire weather conditions. Drier air
starts to advect into the region by Sunday.
***Thunderstorms imply strong, gusty and erratic winds***
***All winds are 20 foot, 10-minute averages***
UTZ478-140045-
Salt Lake Desert-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly sunny (55-65% cloud cover). North of
I-80, scattered rain showers and isolated
thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....91-100 near 5000 feet.
79-86 near 8000 feet.
24 hr trend......5 degrees warmer.
Min humidity........8-14% near 5000 feet.
11-18% near 8000 feet.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......17800 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (70-80% cloud cover). North of
I-80, isolated showers and thunderstorms until
2400. South of I-80, isolated rain showers
until 2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....61-71 near 5000 feet.
60-66 near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........33-43%.
24 hr trend......7% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........North of I-80, partly sunny (65-75% cloud
cover), isolated rain showers until 1200, then
scattered rain showers and isolated
thunderstorms. South of I-80, partly cloudy
(40-50% cloud cover) until 1200, then partly
sunny (55-65% cloud cover), scattered rain
showers and isolated thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................10%.
Max temperature.....87-97 near 5000 feet.
74-83 near 8000 feet.
24 hr trend......4 degrees cooler.
Min humidity........11-19% near 5000 feet.
17-26% 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.......14500 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered rain showers and isolated
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. Winds generally less than 15 mph.
.SATURDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the mid 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.
.SUNDAY...Mostly clear. Isolated 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 mid
70s in the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Lows in the mid 60s. Highs around 90 in
the valleys and in the mid 70s in the mountains.
.TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
90s in the valleys and in the mid 70s in the mountains.
=
$$
UTZ479-140045-
Wasatch Mountains-
257 AM MDT Wed Aug 13 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly cloudy (30-40% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-99 near 5000 feet.
80-90 near 8000 feet.
24 hr trend......5 degrees warmer.
Min humidity........9-19%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......16200 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover).
Chance lightning....10%.
CWR.................0%.
Min temperature.....55-65.
24 hr trend......2 degrees warmer.
Max humidity........41-51% near 5000 feet.
35-45% near 8000 feet.
24 hr trend......4% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). North of
I-80, isolated rain showers until 1200, then
scattered rain showers and isolated
thunderstorms. South of I-80, scattered showers
and thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....89-96 near 5000 feet.
76-86 near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........15-21% near 5000 feet.
16-26% near 8000 feet.
24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West 15-20 mph.
Mixing height.......13200 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s. Highs around 90 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 mid 50s. Highs in the upper 80s in the valleys and in
the mid 70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 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 clear. Lows in the lower 50s. Highs in the upper
80s in the valleys and in the mid 70s in the mountains.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 90 in
the valleys and in the upper 70s in the mountains.
=
$$
UTZ480-140045-
Uinta Mountains-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly sunny (55-65% cloud cover). Isolated
showers and thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................0%.
Max temperature.....85-91 near 7000 feet.
75-84 near 9000 feet.
24 hr trend......2 degrees warmer.
Min humidity........13-23%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Northwest around 15 mph.
Mixing height.......15100 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50% cloud cover). Patchy
smoke.
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-62 near 7000 feet.
45-55 near 9000 feet.
24 hr trend......2 degrees warmer.
Max humidity........33-43% near 7000 feet.
40-50% near 9000 feet.
24 hr trend......3% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Patchy smoke
after 1200. Numerous rain showers and scattered
thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................30%.
Max temperature.....81-88 near 7000 feet.
72-81 near 9000 feet.
24 hr trend......3 degrees cooler.
Min humidity........19-29%.
24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......11500 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and in the upper 40s in the
mountains. Highs in the lower 80s in the valleys and in the mid
70s in the mountains. Winds generally less than 15 mph.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s in the valleys and in the upper 40s in the
mountains. Highs around 80 in the valleys and in the lower 70s in
the mountains. Winds generally less than 15 mph.
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s in the valleys and in the mid 40s in the
mountains. Highs around 80 in the valleys and in the lower 70s in
the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the mid 50s in the valleys and in the mid 40s in the
mountains. Highs in the lower 80s in the valleys and in the lower
70s in the mountains.
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the mid 50s in the valleys and in the upper 40s in the
mountains. Highs in the lower 80s in the valleys and in the mid
70s in the mountains.
=
$$
UTZ481-140045-
Western Ashley National Forest-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
mostly cloudy (65-75% cloud cover). Patchy
smoke until 1200. Isolated showers and
thunderstorms after 1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................10%.
Max temperature.....84-91 near 7000 feet.
71-79 near 10000 feet.
24 hr trend......1 degree warmer.
Min humidity........12-16% near 7000 feet.
15-21% near 10000 feet.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Northwest around 15 mph becoming west in the
afternoon.
Mixing height.......13300 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Partly cloudy (35-45% cloud cover). Patchy
smoke until 2400.
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-62 near 7000 feet.
45-55 near 10000 feet.
24 hr trend......1 degree warmer.
Max humidity........27-33% near 7000 feet.
31-41% near 10000 feet.
24 hr trend......1% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
.THURSDAY...
Sky/weather.........Mostly cloudy (70-80% cloud cover). Numerous
rain showers and scattered thunderstorms after
1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................30%.
Max temperature.....81-88 near 7000 feet.
68-76 near 10000 feet.
24 hr trend......2 degrees cooler.
Min humidity........15-21% near 7000 feet.
20-26% near 10000 feet.
24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......10700 ft AGL.
Climatology......70-80th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s in the valleys and in the upper 40s in the
mountains. Highs around 80 in the valleys and in the upper 60s in
the mountains. Winds generally less than 15 mph.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the lower 50s in the valleys and in the mid 40s in the
mountains. Highs in the upper 70s in the valleys and in the mid
60s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 50s in the valleys and in the mid 40s in the
mountains. Highs in the upper 70s in the valleys and in the mid
60s in the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the mid 50s in the valleys and in the upper 40s in the
mountains. Highs in the lower 80s in the valleys and in the upper
60s in the mountains.
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the mid 50s in the valleys and in the upper 40s in the
mountains. Highs in the lower 80s in the valleys and in the upper
60s in the mountains.
=
$$
UTZ482-140045-
Western Uintah Basin-
257 AM MDT Wed Aug 13 2025
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly sunny (45-55% cloud cover). Isolated
showers and thunderstorms after 1200.
Chance lightning....0% increasing to 10% in the afternoon.
CWR.................0%.
Max temperature.....89-95 near 6000 feet.
81-87 near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........9-15%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......16600 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-66.
24 hr trend......2 degrees warmer.
Max humidity........27-37%.
24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
.THURSDAY...
Sky/weather.........Mostly cloudy (65-75% cloud cover). Scattered
showers and thunderstorms after 1200.
Chance lightning....10% increasing to 40% in the afternoon.
CWR.................10%.
Max temperature.....87-93 near 6000 feet.
78-84 near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........14-20%.
24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......12900 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s. 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 mid 50s. Highs in the lower 80s in the valleys and in
the mid 70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Partly cloudy. Isolated showers and 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.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the mid 50s. Highs in the mid 80s in the valleys and in the
upper 70s in the mountains.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the upper 50s. Highs in the upper 80s in the valleys and in
the upper 70s in the mountains.
=
$$
UTZ483-140045-
Southern Ashley National Forest-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly sunny (50-60% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-92 near 7000 feet.
77-83 near 9000 feet.
24 hr trend......3 degrees warmer.
Min humidity........9-17%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
Mixing height.......15500 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (45-55% cloud cover) until 2400,
then partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....56-66.
24 hr trend......1 degree warmer.
Max humidity........20-28% near 7000 feet.
23-33% near 9000 feet.
24 hr trend......1% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
.THURSDAY...
Sky/weather.........Partly sunny (65-75% cloud cover). Scattered
showers and thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................20%.
Max temperature.....84-90 near 7000 feet.
74-80 near 9000 feet.
24 hr trend......3 degrees cooler.
Min humidity........15-25%.
24 hr trend......7% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......12600 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.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 80s in the valleys and in the lower
70s 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 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.
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
in the mid 50s. Highs in the lower 80s in the valleys and in the
lower 70s in the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s in the valleys and in the lower 70s in the mountains.
.TUESDAY...Partly cloudy. Isolated showers and 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.
=
$$
UTZ484-140045-
Tavaputs Plateau-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly sunny (55-65% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....92-98 near 6000 feet.
81-87 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........7-15%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph in the morning becoming
light and variable.
Mixing height.......16100 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....63-70 near 6000 feet.
58-67 near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........20-26% near 6000 feet.
22-32% near 8000 feet.
24 hr trend......Unchanged.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
.THURSDAY...
Sky/weather.........Partly sunny (60-70% cloud cover). Scattered
showers and thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....89-96 near 6000 feet.
77-84 near 8000 feet.
24 hr trend......2 degrees cooler.
Min humidity........12-18% near 6000 feet.
14-23% near 8000 feet.
24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......13300 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 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.
.SATURDAY...Numerous rain showers and scattered 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 mid 70s
in the mountains. Winds generally less than 15 mph.
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
around 60 in the valleys and in the mid 50s in the mountains.
Highs in the upper 80s in the valleys and in the mid 70s in the
mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Lows in the lower 60s in the valleys and
in the mid 50s in the mountains. Highs in the upper 80s in the
valleys and in the upper 70s in the mountains.
.TUESDAY...Mostly clear. Lows in the lower 60s in the valleys and
in the upper 50s in the mountains. Highs around 90 in the valleys
and around 80 in the mountains.
=
$$
UTZ488-140045-
Manti National Forest-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly cloudy (40-50% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....86-96 near 6500 feet.
76-86 near 8500 feet.
24 hr trend......3 degrees warmer.
Min humidity........8-16%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Northwest around 15 mph becoming west in the
afternoon.
Mixing height.......15700 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60% cloud cover) until 2400,
then partly cloudy (45-55% cloud cover).
Chance lightning....10%.
CWR.................0%.
Min temperature.....58-68 near 6500 feet.
53-63 near 8500 feet.
24 hr trend......2 degrees warmer.
Max humidity........25-35% near 6500 feet.
31-41% near 8500 feet.
24 hr trend......5% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph becoming around 25 mph after
midnight.
.THURSDAY...
Sky/weather.........Mostly cloudy (65-75% cloud cover). Numerous
rain showers and scattered thunderstorms after
1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................20%.
Max temperature.....82-92 near 6500 feet.
72-82 near 8500 feet.
24 hr trend......4 degrees cooler.
Min humidity........13-20% near 6500 feet.
15-25% near 8500 feet.
24 hr trend......7% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......11800 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...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.
.SATURDAY...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.
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
in the mid 50s 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 clear. Isolated showers and 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 lower
70s in the mountains.
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows in the upper 50s in the valleys and in the lower 50s in the
mountains. Highs in the mid 80s in the valleys and in the mid 70s
in the mountains.
=
$$
UTZ489-140045-
San Rafael Swell-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly cloudy (45-55% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....97-103 near 5000 feet.
86-92 near 7000 feet.
24 hr trend......3 degrees warmer.
Min humidity........6-12%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 20 mph
in the afternoon.
12K ft MSL winds....West around 10 mph.
Mixing height.......16800 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....62-72.
24 hr trend......4 degrees warmer.
Max humidity........21-31%.
24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
.THURSDAY...
Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200,
then mostly cloudy (70-80% cloud cover).
Scattered showers and thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....95-101 near 5000 feet.
84-90 near 7000 feet.
24 hr trend......2 degrees cooler.
Min humidity........9-17%.
24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....West 10-15 mph.
Mixing height.......14700 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and 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.
.SATURDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows around 60. Highs around 90 in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
around 60. Highs in the lower 90s in the valleys and in the lower
80s in the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 60s. Highs in the mid 90s in the valleys and in the
lower 80s in the mountains.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 60s. Highs in the mid 90s in the valleys and in the
mid 80s in the mountains.
=
$$
UTZ492-140045-
Central Utah West Desert-
257 AM MDT Wed Aug 13 2025
.TODAY...
Sky/weather.........Sunny (5-15% cloud cover) until 1200, then
partly sunny (60-70% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....96-102 near 5000 feet.
81-87 near 8000 feet.
24 hr trend......4 degrees warmer.
Min humidity........7-11%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
Mixing height.......18100 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover). Isolated
rain showers until 2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....61-71 near 5000 feet.
55-65 near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........32-42%.
24 hr trend......8% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........Partly cloudy (35-45% cloud cover) until 1200,
then partly sunny (60-70% cloud cover).
Scattered rain showers and isolated
thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................10%.
Max temperature.....93-99 near 5000 feet.
78-84 near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........8-15% near 5000 feet.
12-22% near 8000 feet.
24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......16100 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Partly 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 lower 90s in the valleys
and in the upper 70s in the mountains. Winds generally less than
15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the lower 60s in the valleys and in the mid 50s in the
mountains. Highs around 90 in the valleys and in the mid 70s in
the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 60s in the valleys and in the mid 50s 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 clear. Lows around 60 in the valleys and in the
mid 50s in the mountains. Highs in the lower 90s in the valleys
and in the mid 70s in the mountains.
.TUESDAY...Mostly clear. Lows in the lower 60s in the valleys and
in the mid 50s in the mountains. Highs in the lower 90s in the
valleys and in the upper 70s in the mountains.
=
$$
UTZ493-140045-
Central Utah Mountains-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
mostly cloudy (70-80% cloud cover).
Chance lightning....0% increasing to 10% in the afternoon.
CWR.................0%.
Max temperature.....93-99 near 5000 feet.
81-87 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....West 10-15 mph.
Mixing height.......16700 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75% cloud cover). Patchy
smoke until 2400. Isolated rain showers until
2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....58-64 near 5000 feet.
53-63 near 8000 feet.
24 hr trend......2 degrees warmer.
Max humidity........36-46%.
24 hr trend......10% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph becoming around 25 mph after
midnight.
.THURSDAY...
Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200,
then mostly cloudy (80-90% cloud cover).
Isolated rain showers until 1200, then numerous
rain showers and scattered thunderstorms.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................20%.
Max temperature.....90-96 near 5000 feet.
79-85 near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........13-23%.
24 hr trend......5% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
Mixing height.......13500 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...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.
.SATURDAY...Numerous rain showers and scattered thunderstorms.
Lows in the lower 50s. Highs in the mid 80s in the valleys and in
the mid 70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Partly cloudy. Scattered rain showers and isolated
thunderstorms. Lows in the lower 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 clear. Isolated showers and thunderstorms. Lows
in the lower 50s. Highs in the upper 80s in the valleys and in
the upper 70s in the mountains.
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s. Highs around 90 in the valleys and in the
upper 70s in the mountains.
=
$$
UTZ494-140045-
Henry Mountains-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (10-20% cloud cover) until 1200, then
partly cloudy (40-50% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
80-90 near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........5-9% near 5000 feet.
10-14% near 8000 feet.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Northwest around 10 mph.
Mixing height.......16300 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400,
then partly cloudy (35-45% cloud cover).
Chance lightning....0%.
CWR.................0%.
Min temperature.....64-74 near 5000 feet.
63-69 near 8000 feet.
24 hr trend......3 degrees warmer.
Max humidity........18-28%.
24 hr trend......4% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 10 mph.
.THURSDAY...
Sky/weather.........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.....94-100 near 5000 feet.
79-89 near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........8-12% near 5000 feet.
12-16% near 8000 feet.
24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....West 10-15 mph.
Mixing height.......15100 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...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 lower 90s in the valleys and in the upper
70s in the mountains. Winds generally less than 15 mph.
.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 mid 70s in
the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Isolated 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 upper 70s in the
mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the mid 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.
.TUESDAY...Mostly clear. 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 around 80 in
the mountains.
=
$$
UTZ495-140045-
Color Country West Desert-
257 AM MDT Wed Aug 13 2025
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
mostly cloudy (70-80% cloud cover).
Chance lightning....0% increasing to 10% in the afternoon.
CWR.................0%.
Max temperature.....95-101 near 5000 feet.
87-93 near 7000 feet.
24 hr trend......2 degrees warmer.
Min humidity........8-15%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph becoming southwest
around 15 mph in the afternoon.
12K ft MSL winds....West around 15 mph.
Mixing height.......17000 ft AGL.
Climatology......99-100th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400,
then partly cloudy (40-50% cloud cover).
Isolated rain showers until 2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....57-67.
24 hr trend......1 degree warmer.
Max humidity........32-42% near 5000 feet.
26-36% near 7000 feet.
24 hr trend......8% wetter.
20-foot winds.......Southwest around 15 mph in the evening becoming
downslope/downvalley 5-10 mph.
12K ft MSL winds....West 15-20 mph.
.THURSDAY...
Sky/weather.........Sunny (20-30% cloud cover) until 1200, then
mostly cloudy (70-80% cloud cover). Scattered
rain showers and isolated thunderstorms after
1200.
Chance lightning....0% increasing to 20% in the afternoon.
CWR.................10%.
Max temperature.....92-98 near 5000 feet.
84-90 near 7000 feet.
24 hr trend......3 degrees cooler.
Min humidity........10-18%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph becoming southwest
around 15 mph in the afternoon.
12K ft MSL winds....Southwest 15-20 mph.
Mixing height.......14100 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the upper 50s 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. South winds around 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the mid 50s in the valleys and around 60 in the
mountains. Highs in the upper 80s in the valleys and around 80 in
the mountains. South winds around 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 50s in the valleys and in the upper 50s in the
mountains. Highs in the upper 80s in the valleys and around 80 in
the mountains. Winds generally less than 15 mph.
.MONDAY...Mostly clear. Lows in the lower 50s 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.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 50s in the valleys and in the upper 50s in the
mountains. Highs in the lower 90s in the valleys and in the lower
80s in the mountains.
=
$$
UTZ496-140045-
Color Country Mountains-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
mostly cloudy (70-80% cloud cover). Isolated
showers and thunderstorms after 1200.
Chance lightning....0% increasing to 10% in the afternoon.
CWR.................0%.
Max temperature.....89-97 near 6000 feet.
80-87 near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........8-18%.
24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....West around 15 mph.
Mixing height.......15900 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70% cloud cover) until 2400,
then partly cloudy (35-45% cloud cover).
Isolated rain showers until 2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....55-65.
24 hr trend......Unchanged.
Max humidity........41-51% near 6000 feet.
31-41% near 8000 feet.
24 hr trend......9% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200,
then mostly cloudy (80-90% cloud cover).
Numerous rain showers and scattered
thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................20%.
Max temperature.....86-94 near 6000 feet.
77-85 near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........12-22%.
24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....Southwest around 15 mph.
Mixing height.......13300 ft AGL.
Climatology......80-90th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Numerous rain showers and scattered 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 upper
70s 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 mid
70s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Scattered rain showers and isolated
thunderstorms. Lows in the upper 50s in the valleys and in the
lower 50s in the mountains. Highs in the mid 80s in the valleys
and in the upper 70s in the mountains. Winds generally less than
15 mph.
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the upper 50s in the valleys and in the lower 50s in the
mountains. Highs in the upper 80s in the valleys and in the upper
70s in the mountains.
.TUESDAY...Mostly clear. Scattered showers and thunderstorms.
Lows around 60 in the valleys and in the lower 50s in the
mountains. Highs in the upper 80s in the valleys and around 80 in
the mountains.
=
$$
UTZ497-140045-
Mojave Desert-
257 AM MDT Wed Aug 13 2025
.TODAY...
Sky/weather.........Sunny (20-30% cloud cover) until 1200, then
partly cloudy (25-35% cloud cover).
Chance lightning....0%.
CWR.................0%.
Max temperature.....101-108 near 3000 feet.
87-95 near 6000 feet.
24 hr trend......1 degree cooler.
Min humidity........8-14%.
24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 10-15 mph.
Mixing height.......15300 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Mostly clear (20-30% cloud cover).
Chance lightning....10%.
CWR.................0%.
Min temperature.....74-83 near 3000 feet.
65-75 near 6000 feet.
24 hr trend......Unchanged.
Max humidity........29-39%.
24 hr trend......7% wetter.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....Southwest around 15 mph.
.THURSDAY...
Sky/weather.........Sunny (15-25% 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.....98-105 near 3000 feet.
85-92 near 6000 feet.
24 hr trend......3 degrees cooler.
Min humidity........10-16%.
24 hr trend......2% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph.
12K ft MSL winds....Southwest 15-20 mph.
Mixing height.......12900 ft AGL.
Climatology......70-80th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows in the mid 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. 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 lower
80s in the mountains. Winds generally less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
in the lower 70s in the valleys and in the mid 60s 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.
.MONDAY...Mostly clear. Lows in the lower 70s in the valleys and
in the mid 60s in the mountains. Highs in the upper 90s in the
valleys and in the mid 80s in the mountains.
.TUESDAY...Mostly clear. Lows in the lower 70s in the valleys and
in the mid 60s in the mountains. Highs around 100 in the valleys
and in the mid 80s in the mountains.
=
$$
UTZ498-140045-
Grand Staircase-
257 AM MDT Wed Aug 13 2025
...FIRE WEATHER WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
THURSDAY EVENING...
.TODAY...
Sky/weather.........Sunny (15-25% cloud cover) until 1200, then
partly sunny (55-65% cloud cover). Isolated
showers and thunderstorms after 1200.
Chance lightning....0% increasing to 10% in the afternoon.
CWR.................0%.
Max temperature.....96-106 near 4000 feet.
92-99 near 6000 feet.
24 hr trend......2 degrees warmer.
Min humidity........6-13%.
24 hr trend......1% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....West 10-15 mph.
Mixing height.......16800 ft AGL.
Climatology......97-99th Percentile.
Clearing Index......1000+.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50% cloud cover). Isolated
rain showers until 2400.
Chance lightning....10%.
CWR.................0%.
Min temperature.....68-77 near 4000 feet.
59-69 near 6000 feet.
24 hr trend......2 degrees warmer.
Max humidity........20-30% near 4000 feet.
30-40% near 6000 feet.
24 hr trend......5% wetter near 4000 feet.
10% wetter near 6000 feet.
20-foot winds.......Downslope/downvalley 5-10 mph.
12K ft MSL winds....West around 15 mph.
.THURSDAY...
Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200,
then mostly cloudy (75-85% cloud cover).
Numerous rain showers and scattered
thunderstorms after 1200.
Chance lightning....10% increasing to 30% in the afternoon.
CWR.................20%.
Max temperature.....94-104 near 4000 feet.
89-96 near 6000 feet.
24 hr trend......2 degrees cooler.
Min humidity........8-16%.
24 hr trend......3% wetter.
20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph
in the afternoon.
12K ft MSL winds....West 10-15 mph.
Mixing height.......14800 ft AGL.
Climatology......90-95th Percentile.
Clearing Index......1000+.
.FORECAST DAYS 3 THROUGH 7...
.FRIDAY...Numerous rain showers and scattered 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 mid 80s
in the mountains. Winds generally less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows in the upper 60s in the valleys and in the upper 50s 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...Mostly clear. Isolated showers and thunderstorms. Lows
in the upper 60s in the valleys and in the upper 50s 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...Mostly clear. Isolated showers and thunderstorms. Lows
in the upper 60s in the valleys and in the upper 50s in the
mountains. Highs in the upper 90s in the valleys and in the upper
80s in the mountains.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
around 70 in the valleys and around 60 in the mountains. Highs
around 100 in the valleys and around 90 in the mountains.
=
$$
.8-14 day outlook for Wednesday August 20 to Tuesday August 26
Temperature... Above Normal
Precipitation... Near Normal
=
$$