900
FNUS55 KSLC 171843
FWFSLC
FIRE WEATHER PLANNING FORECAST FOR UTAH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1243 PM MDT SUN MAY 17 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 497 AND
498...
BROADCAST DISCUSSION
CRITICAL FIRE WEATHER CONDITIONS WILL HANG
ON OVER FAR SOUTHERN UTAH THROUGH THIS EVENING. AN UNSEASONABLY
COLD SYSTEM WILL CROSS UTAH THROUGH MONDAY, BRINGING MUCH COLDER
TEMPERATURES AND ACCUMULATING MOUNTAIN SNOW. CONDITIONS WILL TREND
DRIER AND WARMER FOR THE REMAINDER OF THE UPCOMING WEEK.
DISCUSSION
RELATIVE HUMIDITIES ARE INCREASING OVER UTAH
TODAY WITH BREEZY CONDITIONS OVER SOUTHERN UTAH AHEAD OF A STRONG
COLD FRONT. OVER FAR SOUTHERN UTAH, RELATIVE HUMIDITIES REMAIN LOW
ENOUGH TO COMBINE WITH THE WINDS TO PRODUCE CRITICAL FIRE WEATHER
CONDITIONS. A COLD PACIFIC NORTHWEST TROUGH WILL CROSS THE AREA
SUNDAY AFTERNOON THROUGH MONDAY, BRINGING MUCH COLDER TEMPERATURES
AND ACCUMULATING SNOW FOR THE MOUNTAINS. CONDITIONS WILL TREND
DRIER FOR THE UPCOMING WEEK WITH A STEADY WARMING TREND OVER THE
NEXT SEVEN DAYS.
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***
UTZ478-181215-
SALT LAKE DESERT-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NORTH OF I-80,
SCATTERED RAIN SHOWERS. SOUTH OF I-80, NUMEROUS
RAIN AND SNOW SHOWERS UNTIL 2400. RAIN SHOWERS
AND SNOW SHOWERS AFTER 2400.
CHANCE LIGHTNING....10%.
CWR.................20% NORTH OF I-80 AND 60% SOUTH OF I-80.
MIN TEMPERATURE.....32-42 NEAR 5000 FEET.
26-33 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........62-72% NEAR 5000 FEET.
68-78% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......NORTH 20-25 MPH. GUSTS UP TO 35 MPH INCREASING
TO 45 MPH AFTER MIDNIGHT.
12K FT MSL WINDS....NORTH AROUND 20 MPH BECOMING AROUND 35 MPH
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER) UNTIL 1200, THEN
PARTLY SUNNY (55-65% CLOUD COVER). SOUTH OF
I-80, SCATTERED RAIN AND SNOW SHOWERS UNTIL
1200.
CHANCE LIGHTNING....10%.
CWR.................0% NORTH OF I-80 AND 20% SOUTH OF I-80.
MAX TEMPERATURE.....51-59 NEAR 5000 FEET.
37-44 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........26-36% NEAR 5000 FEET.
32-42% NEAR 8000 FEET.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......NORTH 20-25 MPH WITH GUSTS TO AROUND 45 MPH.
12K FT MSL WINDS....NORTH AROUND 40 MPH BECOMING AROUND 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......11200 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....31-41 NEAR 5000 FEET.
25-34 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........63-73% NEAR 5000 FEET.
54-64% NEAR 8000 FEET.
24 HR TREND......1% DRIER NEAR 5000 FEET.
17% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....57-64 NEAR 5000 FEET.
43-50 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........16-26% NEAR 5000 FEET.
21-31% NEAR 8000 FEET.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......11900 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......850.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE LOWER 80S
IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ479-181215-
WASATCH MOUNTAINS-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). NORTH OF I-80,
NUMEROUS RAIN AND SNOW SHOWERS UNTIL 2400, THEN
RAIN AND SNOW SHOWERS. SOUTH OF I-80, SNOW
SHOWERS, RAIN SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................90% NORTH OF I-80 AND 100% SOUTH OF I-80.
MIN TEMPERATURE.....29-39 NEAR 5000 FEET.
23-33 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........74-84% NEAR 5000 FEET.
78-88% NEAR 8000 FEET.
24 HR TREND......28% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING NORTH
AROUND 15 MPH AFTER MIDNIGHT. GUSTS UP TO 30
MPH.
12K FT MSL WINDS....NORTHEAST AROUND 10 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SNOW SHOWERS UNTIL
1200. NORTH OF I-80, SCATTERED RAIN SHOWERS.
SCATTERED SNOW SHOWERS AND ISOLATED
THUNDERSTORMS AFTER 1200. SOUTH OF I-80, SNOW
SHOWERS UNTIL 1200, THEN SCATTERED SNOW
SHOWERS, RAIN SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................60% NORTH OF I-80 AND 50% SOUTH OF I-80.
MAX TEMPERATURE.....49-55 NEAR 5000 FEET.
34-44 NEAR 8000 FEET.
24 HR TREND......UNCHANGED NEAR 5000 FEET.
6 DEGREES COOLER NEAR 8000 FEET.
MIN HUMIDITY........38-48% NEAR 5000 FEET.
59-69% NEAR 8000 FEET.
24 HR TREND......UNCHANGED NEAR 5000 FEET.
18% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH
IN THE MORNING BECOMING UPSLOPE/UPVALLEY 5-10
MPH.
12K FT MSL WINDS....NORTHEAST AROUND 35 MPH BECOMING AROUND 15 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......970.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER). SOUTH OF
I-80, SCATTERED SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................0% NORTH OF I-80 AND 10% SOUTH OF I-80.
MIN TEMPERATURE.....25-35 NEAR 5000 FEET.
21-31 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........70-80%.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (45-55% CLOUD COVER). SOUTH
OF I-80, ISOLATED THUNDERSTORMS AND SNOW
SHOWERS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 10% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....56-64 NEAR 5000 FEET.
42-52 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........23-29% NEAR 5000 FEET.
33-43% NEAR 8000 FEET.
24 HR TREND......17% DRIER NEAR 5000 FEET.
27% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......9300 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......740.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
SOUTHWEST WINDS AROUND 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE UPPER 70S
IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE LOWER
80S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ480-181215-
UINTA MOUNTAINS-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). SNOW SHOWERS AND
ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................100%.
MIN TEMPERATURE.....28-34 NEAR 7000 FEET.
19-27 NEAR 9000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........80-90% NEAR 7000 FEET.
87-97% NEAR 9000 FEET.
24 HR TREND......21% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING NORTH
AROUND 20 MPH WITH GUSTS TO AROUND 35 MPH AFTER
MIDNIGHT.
12K FT MSL WINDS....NORTHEAST AROUND 15 MPH BECOMING AROUND 30 MPH
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SNOW SHOWERS
UNTIL 1200. ISOLATED THUNDERSTORMS. SCATTERED
SNOW SHOWERS AFTER 1200.
CHANCE LIGHTNING....20%.
CWR.................80%.
MAX TEMPERATURE.....40-46 NEAR 7000 FEET.
31-40 NEAR 9000 FEET.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........52-59% NEAR 7000 FEET.
60-70% NEAR 9000 FEET.
24 HR TREND......10% WETTER.
20-FOOT WINDS.......NORTHEAST AROUND 25 MPH WITH GUSTS TO AROUND 40
MPH BECOMING AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHEAST AROUND 45 MPH BECOMING AROUND 30 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......4800 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER). SCATTERED
SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................10%.
MIN TEMPERATURE.....24-30 NEAR 7000 FEET.
13-22 NEAR 9000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........73-83% NEAR 7000 FEET.
84-94% NEAR 9000 FEET.
24 HR TREND......9% DRIER NEAR 7000 FEET.
4% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED
SNOW SHOWERS UNTIL 1200. SCATTERED SNOW SHOWERS
AND ISOLATED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................10%.
MAX TEMPERATURE.....48-54 NEAR 7000 FEET.
37-45 NEAR 9000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........31-37% NEAR 7000 FEET.
40-50% NEAR 9000 FEET.
24 HR TREND......20% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7400 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......580.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S IN THE VALLEYS
AND AROUND 18 IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN THE
VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED THUNDERSTORMS AND SNOW
SHOWERS. LOWS IN THE MID 30S IN THE VALLEYS AND IN THE MID 20S IN
THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS AND IN THE
LOWER 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS AND
AROUND 30 IN THE MOUNTAINS. HIGHS IN THE MID 60S IN THE VALLEYS
AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN
THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
=
UTZ481-181215-
WESTERN ASHLEY NATIONAL FOREST-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). SNOW SHOWERS AND
ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................100%.
MIN TEMPERATURE.....30-36 NEAR 7000 FEET.
20-28 NEAR 10000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........68-78% NEAR 7000 FEET.
75-85% NEAR 10000 FEET.
24 HR TREND......16% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING NORTH
AROUND 25 MPH WITH GUSTS TO AROUND 40 MPH AFTER
MIDNIGHT.
12K FT MSL WINDS....EAST 10-15 MPH.
MONDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SNOW SHOWERS UNTIL
1200. ISOLATED THUNDERSTORMS. SCATTERED SNOW
SHOWERS AFTER 1200.
CHANCE LIGHTNING....20%.
CWR.................70%.
MAX TEMPERATURE.....42-49 NEAR 7000 FEET.
27-37 NEAR 10000 FEET.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........49-59% NEAR 7000 FEET.
61-71% NEAR 10000 FEET.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......NORTH AROUND 30 MPH WITH GUSTS TO AROUND 55 MPH
BECOMING AROUND 20 MPH WITH GUSTS TO AROUND 40
MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHEAST AROUND 35 MPH BECOMING AROUND 25 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......4700 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). NUMEROUS
SNOW SHOWERS UNTIL 2400, THEN ISOLATED SNOW
SHOWERS.
CHANCE LIGHTNING....0%.
CWR.................50%.
MIN TEMPERATURE.....24-30 NEAR 7000 FEET.
13-23 NEAR 10000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........62-72% NEAR 7000 FEET.
71-81% NEAR 10000 FEET.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTH AROUND 10 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED
SNOW SHOWERS UNTIL 1200, THEN NUMEROUS SNOW
SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................30%.
MAX TEMPERATURE.....47-54 NEAR 7000 FEET.
33-41 NEAR 10000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........42-52% NEAR 7000 FEET.
50-60% NEAR 10000 FEET.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......6400 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......530.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S IN THE VALLEYS
AND AROUND 17 IN THE MOUNTAINS. HIGHS IN THE MID 50S IN THE
VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED THUNDERSTORMS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S IN THE VALLEYS AND IN THE MID 20S
IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS AND IN
THE UPPER 40S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED THUNDERSTORMS. LOWS IN THE MID
30S IN THE VALLEYS AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS
IN THE MID 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE
VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND AROUND 60 IN THE MOUNTAINS.
=
UTZ482-181215-
WESTERN UINTAH BASIN-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). RAIN SHOWERS,
SNOW SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................100%.
MIN TEMPERATURE.....32-38 NEAR 6000 FEET.
28-34 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........82-92% NEAR 6000 FEET.
78-88% NEAR 8000 FEET.
24 HR TREND......26% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHEAST 10-15 MPH.
MONDAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SNOW SHOWERS AND
RAIN SHOWERS UNTIL 1200, THEN NUMEROUS SNOW
SHOWERS, SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................60%.
MAX TEMPERATURE.....43-49 NEAR 6000 FEET.
36-42 NEAR 8000 FEET.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........56-66%.
24 HR TREND......12% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH.
12K FT MSL WINDS....NORTHEAST 10-15 MPH.
MIXING HEIGHT.......6000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......910.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................30%.
MIN TEMPERATURE.....27-33 NEAR 6000 FEET.
23-29 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........79-89%.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). PATCHY FROST
UNTIL 1200. SCATTERED SNOW SHOWERS, ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................10%.
MAX TEMPERATURE.....49-55 NEAR 6000 FEET.
42-48 NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........41-51%.
24 HR TREND......14% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......560.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID
60S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND
70 IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE UPPER
70S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS.
=
UTZ483-181215-
SOUTHERN ASHLEY NATIONAL FOREST-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). NUMEROUS RAIN
SHOWERS UNTIL 2400. SNOW SHOWERS AND ISOLATED
THUNDERSTORMS. RAIN SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................100%.
MIN TEMPERATURE.....31-37 NEAR 7000 FEET.
25-31 NEAR 9000 FEET.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........81-87% NEAR 7000 FEET.
86-96% NEAR 9000 FEET.
24 HR TREND......32% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH BECOMING SOUTHEAST
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NUMEROUS SNOW
SHOWERS UNTIL 1200, THEN SCATTERED SNOW SHOWERS
AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................60%.
MAX TEMPERATURE.....39-45 NEAR 7000 FEET.
31-37 NEAR 9000 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........61-71% NEAR 7000 FEET.
75-85% NEAR 9000 FEET.
24 HR TREND......24% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY
5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......4800 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......780.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED
SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................20%.
MIN TEMPERATURE.....25-31 NEAR 7000 FEET.
20-26 NEAR 9000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........73-79% NEAR 7000 FEET.
82-92% NEAR 9000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
ISOLATED THUNDERSTORMS AND SNOW SHOWERS AFTER
1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....46-52 NEAR 7000 FEET.
38-44 NEAR 9000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........40-50% NEAR 7000 FEET.
47-57% NEAR 9000 FEET.
24 HR TREND......22% DRIER NEAR 7000 FEET.
30% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8100 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......650.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN
THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE
VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ484-181215-
TAVAPUTS PLATEAU-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). RAIN SHOWERS,
SNOW SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................100%.
MIN TEMPERATURE.....34-41 NEAR 6000 FEET.
29-37 NEAR 8000 FEET.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........81-91%.
24 HR TREND......30% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTH 15-20 MPH.
MONDAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN AND
SNOW SHOWERS UNTIL 1200. ISOLATED
THUNDERSTORMS. SCATTERED RAIN AND SNOW SHOWERS
AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................70%.
MAX TEMPERATURE.....44-50 NEAR 6000 FEET.
37-43 NEAR 8000 FEET.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........57-67% NEAR 6000 FEET.
67-77% NEAR 8000 FEET.
24 HR TREND......17% WETTER NEAR 6000 FEET.
24% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH IN THE MORNING BECOMING
UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 30 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......5300 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......840.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). ISOLATED
SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................10%.
MIN TEMPERATURE.....28-35 NEAR 6000 FEET.
22-31 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........70-80% NEAR 6000 FEET.
76-86% NEAR 8000 FEET.
24 HR TREND......9% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....52-58 NEAR 6000 FEET.
45-51 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........36-46% NEAR 6000 FEET.
40-50% NEAR 8000 FEET.
24 HR TREND......20% DRIER NEAR 6000 FEET.
27% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7800 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......580.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S IN THE VALLEYS AND
AROUND 30 IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS
AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND AROUND 60 IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN
THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ488-181215-
MANTI NATIONAL FOREST-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). NUMEROUS RAIN
SHOWERS UNTIL 2400. SNOW SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................90%.
MIN TEMPERATURE.....28-38 NEAR 6500 FEET.
23-32 NEAR 8500 FEET.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........79-89% NEAR 6500 FEET.
83-93% NEAR 8500 FEET.
24 HR TREND......26% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING
NORTHWEST AROUND 25 MPH WITH GUSTS TO AROUND 40
MPH AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING NORTHWEST
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SNOW SHOWERS UNTIL
1200, THEN SCATTERED SNOW SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................60%.
MAX TEMPERATURE.....42-51 NEAR 6500 FEET.
31-41 NEAR 8500 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........49-59% NEAR 6500 FEET.
63-73% NEAR 8500 FEET.
24 HR TREND......18% WETTER NEAR 6500 FEET.
27% WETTER NEAR 8500 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 25 MPH WITH GUSTS TO AROUND 50
MPH BECOMING AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST AROUND 30 MPH BECOMING AROUND 20 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......5100 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....24-34 NEAR 6500 FEET.
19-28 NEAR 8500 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........76-86%.
24 HR TREND......9% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (55-65% CLOUD COVER).
ISOLATED THUNDERSTORMS AND SNOW SHOWERS AFTER
1200.
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....50-58 NEAR 6500 FEET.
38-48 NEAR 8500 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........28-38% NEAR 6500 FEET.
36-46% NEAR 8500 FEET.
24 HR TREND......20% DRIER NEAR 6500 FEET.
29% DRIER NEAR 8500 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8200 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......810.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 20S IN THE MOUNTAINS. HIGHS AROUND 60 IN THE
VALLEYS AND AROUND 50 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID
60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS AROUND 70 IN
THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 70S
IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ489-181215-
SAN RAFAEL SWELL-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.
RAIN SHOWERS AND SNOW SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................90%.
MIN TEMPERATURE.....39-45 NEAR 5000 FEET.
32-41 NEAR 7000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........68-78% NEAR 5000 FEET.
73-83% NEAR 7000 FEET.
24 HR TREND......22% WETTER NEAR 5000 FEET.
32% WETTER NEAR 7000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING
NORTHWEST AROUND 15 MPH AFTER MIDNIGHT. GUSTS
UP TO 30 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 1200. ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................20%.
MAX TEMPERATURE.....53-59 NEAR 5000 FEET.
44-50 NEAR 7000 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........38-48% NEAR 5000 FEET.
47-57% NEAR 7000 FEET.
24 HR TREND......16% WETTER.
20-FOOT WINDS.......NORTHWEST 15-20 MPH. GUSTS UP TO 40 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......7300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (35-45% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....34-41 NEAR 5000 FEET.
29-36 NEAR 7000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........66-76%.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (45-55% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....61-67 NEAR 5000 FEET.
50-56 NEAR 7000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........23-29% NEAR 5000 FEET.
29-37% NEAR 7000 FEET.
24 HR TREND......17% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8600 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......710.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 80 IN
THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
MID 80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER
80S IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.
=
UTZ492-181215-
CENTRAL UTAH WEST DESERT-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). RAIN SHOWERS AND
SNOW SHOWERS.
CHANCE LIGHTNING....10%.
CWR.................90%.
MIN TEMPERATURE.....29-39 NEAR 5000 FEET.
25-31 NEAR 8000 FEET.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........67-77% NEAR 5000 FEET.
78-88% NEAR 8000 FEET.
24 HR TREND......25% WETTER NEAR 5000 FEET.
35% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH AROUND 20 MPH WITH GUSTS TO AROUND 40
MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH BECOMING NORTH AROUND
35 MPH AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). NUMEROUS
SNOW SHOWERS AND SCATTERED RAIN SHOWERS UNTIL
1200. ISOLATED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................20%.
MAX TEMPERATURE.....52-59 NEAR 5000 FEET.
36-45 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER NEAR 5000 FEET.
9 DEGREES COOLER NEAR 8000 FEET.
MIN HUMIDITY........26-36% NEAR 5000 FEET.
45-55% NEAR 8000 FEET.
24 HR TREND......UNCHANGED NEAR 5000 FEET.
18% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH 20-25 MPH. GUSTS UP TO 45 MPH DECREASING
TO 35 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTH AROUND 45 MPH BECOMING AROUND 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......9700 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....28-38 NEAR 5000 FEET.
23-33 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........61-71%.
24 HR TREND......14% DRIER NEAR 5000 FEET.
21% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....60-66 NEAR 5000 FEET.
45-51 NEAR 8000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........15-25% NEAR 5000 FEET.
23-33% NEAR 8000 FEET.
24 HR TREND......9% DRIER NEAR 5000 FEET.
24% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......11000 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......910.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE UPPER 30S 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.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND IN
THE LOWER 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.
SATURDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE MID 80S
IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ493-181215-
CENTRAL UTAH MOUNTAINS-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 2400. SNOW SHOWERS AND RAIN
SHOWERS.
CHANCE LIGHTNING....10%.
CWR.................100%.
MIN TEMPERATURE.....21-31.
24 HR TREND......9 DEGREES COOLER.
MAX HUMIDITY........91-100% NEAR 5000 FEET.
79-89% NEAR 8000 FEET.
24 HR TREND......27% WETTER NEAR 5000 FEET.
19% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH BECOMING AROUND 25 MPH WITH GUSTS TO AROUND
40 MPH AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH BECOMING NORTHWEST
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED SNOW
SHOWERS UNTIL 1200, THEN ISOLATED THUNDERSTORMS
AND SNOW SHOWERS.
CHANCE LIGHTNING....10%.
CWR.................40%.
MAX TEMPERATURE.....49-55 NEAR 5000 FEET.
37-46 NEAR 8000 FEET.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........46-52% NEAR 5000 FEET.
50-60% NEAR 8000 FEET.
24 HR TREND......24% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 25 MPH WITH GUSTS TO AROUND 45
MPH BECOMING AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH BECOMING AROUND 25 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......5900 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....25-31 NEAR 5000 FEET.
21-30 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........76-86% NEAR 5000 FEET.
66-76% NEAR 8000 FEET.
24 HR TREND......16% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (55-65% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....58-64 NEAR 5000 FEET.
46-53 NEAR 8000 FEET.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........26-30% NEAR 5000 FEET.
31-41% NEAR 8000 FEET.
24 HR TREND......19% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8800 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......790.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 60S
IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER
70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ494-181215-
HENRY MOUNTAINS-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.
RAIN SHOWERS AND SNOW SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................90%.
MIN TEMPERATURE.....40-49 NEAR 5000 FEET.
33-42 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........59-69% NEAR 5000 FEET.
68-78% NEAR 8000 FEET.
24 HR TREND......14% WETTER NEAR 5000 FEET.
19% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 40 MPH.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 1200.
CHANCE LIGHTNING....10%.
CWR.................20%.
MAX TEMPERATURE.....56-62 NEAR 5000 FEET.
42-52 NEAR 8000 FEET.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........31-41% NEAR 5000 FEET.
46-56% NEAR 8000 FEET.
24 HR TREND......20% WETTER NEAR 5000 FEET.
31% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST 15-20 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 25 MPH BECOMING AROUND 15 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......8800 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....36-44 NEAR 5000 FEET.
32-38 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........53-63% NEAR 5000 FEET.
61-71% NEAR 8000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......NORTH AROUND 15 MPH.
12K FT MSL WINDS....WEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....61-67 NEAR 5000 FEET.
46-56 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........20-26% NEAR 5000 FEET.
30-40% NEAR 8000 FEET.
24 HR TREND......12% DRIER NEAR 5000 FEET.
17% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......8300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......760.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE UPPER 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE
VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80 IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ495-181215-
COLOR COUNTRY WEST DESERT-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 2400. RAIN SHOWERS AND SNOW
SHOWERS.
CHANCE LIGHTNING....10%.
CWR.................100%.
MIN TEMPERATURE.....26-36.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........82-92%.
24 HR TREND......37% WETTER.
20-FOOT WINDS.......NORTH 15-20 MPH WITH GUSTS TO AROUND 35 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH BECOMING NORTH AROUND
35 MPH AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........PARTLY SUNNY (65-75% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................10%.
MAX TEMPERATURE.....53-59 NEAR 5000 FEET.
43-51 NEAR 7000 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........29-39% NEAR 5000 FEET.
33-43% NEAR 7000 FEET.
24 HR TREND......11% WETTER.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH.
12K FT MSL WINDS....NORTH AROUND 40 MPH BECOMING AROUND 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......8700 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER). AREAS OF
FROST AFTER 2400.
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....28-38.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........55-65%.
24 HR TREND......27% DRIER NEAR 5000 FEET.
39% DRIER NEAR 7000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER). AREAS OF FROST
UNTIL 1200.
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....60-66 NEAR 5000 FEET.
51-59 NEAR 7000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........19-26% NEAR 5000 FEET.
21-31% NEAR 7000 FEET.
24 HR TREND......11% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHEAST 10-15 MPH.
MIXING HEIGHT.......9500 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 30S IN THE VALLEYS AND
IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS AROUND 40 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.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS
AND IN THE MID 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S 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.
=
UTZ496-181215-
COLOR COUNTRY MOUNTAINS-
1243 PM MDT SUN MAY 17 2026
TONIGHT
SKY/WEATHER.........CLOUDY (95-100% CLOUD COVER). RAIN SHOWERS AND
ISOLATED THUNDERSTORMS UNTIL 2400. SNOW
SHOWERS. NUMEROUS RAIN SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................100%.
MIN TEMPERATURE.....28-38 NEAR 6000 FEET.
22-32 NEAR 8000 FEET.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........75-85% NEAR 6000 FEET.
79-89% NEAR 8000 FEET.
24 HR TREND......21% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 40
MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 40 MPH BECOMING NORTHWEST
AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
ISOLATED SNOW SHOWERS UNTIL 1200.
CHANCE LIGHTNING....0%.
CWR.................10%.
MAX TEMPERATURE.....50-60 NEAR 6000 FEET.
40-49 NEAR 8000 FEET.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........31-41% NEAR 6000 FEET.
36-46% NEAR 8000 FEET.
24 HR TREND......20% WETTER.
20-FOOT WINDS.......NORTH 15-20 MPH. GUSTS UP TO 45 MPH DECREASING
TO 30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTH AROUND 40 MPH BECOMING AROUND 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......7500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....26-36 NEAR 6000 FEET.
22-32 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........64-74%.
24 HR TREND......16% DRIER NEAR 6000 FEET.
22% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING WEST AROUND 10 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (50-60% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....58-67 NEAR 6000 FEET.
50-57 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........20-30%.
24 HR TREND......11% DRIER NEAR 6000 FEET.
16% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......9800 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND
AROUND 40 IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS
AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 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.
=
UTZ497-181215-
MOJAVE DESERT-
1243 PM MDT SUN MAY 17 2026
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN
SHOWERS.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................30%.
MIN TEMPERATURE.....46-53 NEAR 3000 FEET.
34-44 NEAR 6000 FEET.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........49-59% NEAR 3000 FEET.
70-80% NEAR 6000 FEET.
24 HR TREND......13% WETTER NEAR 3000 FEET.
31% WETTER NEAR 6000 FEET.
20-FOOT WINDS.......NORTH 25-30 MPH. GUSTS UP TO 55 MPH DECREASING
TO 45 MPH AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 45 MPH BECOMING WEST AROUND 30
MPH AFTER MIDNIGHT.
MONDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....69-75 NEAR 3000 FEET.
53-60 NEAR 6000 FEET.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........15-21% NEAR 3000 FEET.
21-28% NEAR 6000 FEET.
24 HR TREND......6% WETTER.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 35
MPH.
12K FT MSL WINDS....NORTH 20-25 MPH.
MIXING HEIGHT.......9900 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....46-55 NEAR 3000 FEET.
37-46 NEAR 6000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........31-41% NEAR 3000 FEET.
36-46% NEAR 6000 FEET.
24 HR TREND......15% DRIER NEAR 3000 FEET.
33% DRIER NEAR 6000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH
IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY
5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....75-81 NEAR 3000 FEET.
59-67 NEAR 6000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........9-13% NEAR 3000 FEET.
13-19% NEAR 6000 FEET.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......10800 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND IN
THE MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. NORTH WINDS AROUND
15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS
AND AROUND 50 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.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND
IN THE LOWER 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
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.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS AND
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE
VALLEYS AND AROUND 80 IN THE MOUNTAINS.
=
UTZ498-181215-
GRAND STAIRCASE-
1243 PM MDT SUN MAY 17 2026
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.
SCATTERED RAIN AND SNOW SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................50%.
MIN TEMPERATURE.....43-53 NEAR 4000 FEET.
35-45 NEAR 6000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........52-62% NEAR 4000 FEET.
62-72% NEAR 6000 FEET.
24 HR TREND......6% WETTER NEAR 4000 FEET.
15% WETTER NEAR 6000 FEET.
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 45 MPH.
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................10%.
MAX TEMPERATURE.....61-71 NEAR 4000 FEET.
53-62 NEAR 6000 FEET.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........21-31%.
24 HR TREND......13% WETTER.
20-FOOT WINDS.......NORTHWEST 15-20 MPH. GUSTS UP TO 40 MPH IN THE
MORNING.
12K FT MSL WINDS....WEST AROUND 30 MPH BECOMING NORTHWEST AROUND 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......9600 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....40-50 NEAR 4000 FEET.
32-42 NEAR 6000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........47-57%.
24 HR TREND......1% WETTER NEAR 4000 FEET.
10% DRIER NEAR 6000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....65-75 NEAR 4000 FEET.
60-70 NEAR 6000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........13-23%.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......9800 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......960.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND AROUND 40 IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 50 IN THE VALLEYS AND IN
THE LOWER 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.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE MID 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.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE
VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS
AND IN THE LOWER 80S IN THE MOUNTAINS.
=
.8-14 DAY OUTLOOK FOR MONDAY MAY 25 TO SUNDAY MAY 31
TEMPERATURE... ABOVE NORMAL
PRECIPITATION... ABOVE NORMAL
=
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