439  
FNUS55 KSLC 282019  
FWFSLC  
 
FIRE WEATHER PLANNING FORECAST FOR UTAH  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
219 PM MDT THU AUG 28 2025  
   
..WEATHER TO TREND DRIER AND MORE MILD  
 
   
BROADCAST DISCUSSION  
MOISTURE ASSOCIATED WITH A MONSOONAL PATTERN  
WILL CONTINUE TO GRADUALLY SCOUR OUT. PRECIPITATION AND WETTING  
RAIN CHANCES DECREASE ACCORDINGLY, WITH TEMPERATURES TRENDING BACK  
NEAR TO SLIGHTLY ABOVE NORMAL BY NEXT WEEK.  
   
DISCUSSION  
REMNANT MOISTURE ASSOCIATED WITH A MONSOONAL PATTERN  
WILL LINGER AND RESULT IN A CONTINUED CHANCE OF SCATTERED  
CONVECTION THURSDAY. OVERNIGHT INTO EARLY FRIDAY, A REMNANT  
TROPICAL SYSTEM WILL EJECT THROUGH THE REGION, RESULTING IN  
POTENTIAL FOR MORE WIDESPREAD STRATIFORM RAIN, PARTICULARLY ACROSS  
SOUTHERN TO CENTRAL UTAH. MOISTURE WILL THEN REMAIN SUFFICIENT  
FOR ANOTHER DAY OF ISOLATED TO SCATTERED CONVECTION DURING THE DAY  
FRIDAY. FROM THE WEEKEND ON INTO EARLY NEXT WEEK HIGH PRESSURE  
RIDGING BECOMES BETTER CENTERED OVERHEAD, RESULTING IN A DRYING  
AND WARMING TREND. SOME ISOLATED CONVECTION WILL BE POSSIBLE  
DURING THE DAY, PRIMARILY ALONG HIGH TERRAIN IN SOUTHERN UTAH, BUT  
COVERAGE WILL BECOME MUCH LESS WIDESPREAD THAN THAT OF PRIOR  
DAYS. MODELS THEN SUGGEST AN UPTICK IN MOISTURE BY MIDWEEK WILL  
RESULT IN A CORRESPONDING INCREASE TO PRECIPITATION CHANCES ONCE  
AGAIN.  
 
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***  
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***  
 
UTZ478-291230-  
SALT LAKE DESERT-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) NORTH OF  
I-80 AND MOSTLY CLOUDY (65-75% CLOUD COVER)  
SOUTH OF I-80. ISOLATED SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....52-62 NEAR 5000 FEET.  
51-57 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........62-72%.  
24 HR TREND......27% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0% NORTH OF I-80 AND 10% SOUTH OF I-80.  
MAX TEMPERATURE.....75-83 NEAR 5000 FEET.  
62-68 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........25-35% NEAR 5000 FEET.  
32-42% NEAR 8000 FEET.  
24 HR TREND......7% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......10100 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......670.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....10% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....52-62 NEAR 5000 FEET.  
50-56 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........50-60% NEAR 5000 FEET.  
46-56% NEAR 8000 FEET.  
24 HR TREND......6% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....77-84 NEAR 5000 FEET.  
63-69 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........19-29% NEAR 5000 FEET.  
27-37% NEAR 8000 FEET.  
24 HR TREND......4% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......10800 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......650.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S IN  
THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE MID 80S IN  
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE  
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY  
LESS THAN 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. 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 LOWER 70S IN THE MOUNTAINS.    
THURSDAY  
MOSTLY CLEAR. LOWS AROUND 60 IN THE VALLEYS AND IN  
THE MID 50S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS  
AND AROUND 70 IN THE MOUNTAINS.  
=  
 
 
 
UTZ479-291230-  
WASATCH MOUNTAINS-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MIN TEMPERATURE.....47-57.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........75-85% NEAR 5000 FEET.  
69-79% NEAR 8000 FEET.  
24 HR TREND......8% DRIER NEAR 5000 FEET.  
20% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). NORTH OF  
I-80, ISOLATED SHOWERS AND THUNDERSTORMS AFTER  
1200. SOUTH OF I-80, SCATTERED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.  
CWR.................0% NORTH OF I-80 AND 10% SOUTH OF I-80.  
MAX TEMPERATURE.....74-83 NEAR 5000 FEET.  
63-72 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........31-41% NEAR 5000 FEET.  
36-46% NEAR 8000 FEET.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......9300 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......740.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....47-57 NEAR 5000 FEET.  
42-52 NEAR 8000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........71-81% NEAR 5000 FEET.  
65-75% NEAR 8000 FEET.  
24 HR TREND......9% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MAX TEMPERATURE.....76-86 NEAR 5000 FEET.  
64-74 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........26-36%.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......10300 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......740.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER  
80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE MID 80S IN  
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS  
IN THE LOWER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
WEDNESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ480-291230-  
UINTA MOUNTAINS-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....46-52 NEAR 7000 FEET.  
36-46 NEAR 9000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........68-78% NEAR 7000 FEET.  
79-89% NEAR 9000 FEET.  
24 HR TREND......24% DRIER NEAR 7000 FEET.  
10% DRIER NEAR 9000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 1200,  
THEN PARTLY SUNNY (60-70% CLOUD COVER).  
SCATTERED SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................10%.  
MAX TEMPERATURE.....69-75 NEAR 7000 FEET.  
60-67 NEAR 9000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........38-48%.  
24 HR TREND......13% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......8700 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......840.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER) UNTIL 2400,  
THEN PARTLY CLOUDY (20-30% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....45-51 NEAR 7000 FEET.  
36-46 NEAR 9000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........62-72% NEAR 7000 FEET.  
73-83% NEAR 9000 FEET.  
24 HR TREND......10% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (35-45% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....70-76 NEAR 7000 FEET.  
61-69 NEAR 9000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........28-38%.  
24 HR TREND......10% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......9600 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......740.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 40S 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.    
MONDAY  
MOSTLY CLEAR. ISOLATED 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 AROUND 70 IN  
THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY  
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 AROUND 70 IN  
THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S 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.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S 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.  
=  
 
 
 
UTZ481-291230-  
WESTERN ASHLEY NATIONAL FOREST-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....47-53 NEAR 7000 FEET.  
34-44 NEAR 10000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........62-72% NEAR 7000 FEET.  
73-83% NEAR 10000 FEET.  
24 HR TREND......17% DRIER NEAR 7000 FEET.  
12% DRIER NEAR 10000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....69-75 NEAR 7000 FEET.  
55-63 NEAR 10000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........37-44% NEAR 7000 FEET.  
48-58% NEAR 10000 FEET.  
24 HR TREND......5% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......7300 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......920.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER) UNTIL 2400,  
THEN PARTLY CLOUDY (25-35% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....46-52 NEAR 7000 FEET.  
34-44 NEAR 10000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........54-63% NEAR 7000 FEET.  
64-74% NEAR 10000 FEET.  
24 HR TREND......10% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (40-50% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....70-78 NEAR 7000 FEET.  
58-65 NEAR 10000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........26-32% NEAR 7000 FEET.  
32-42% NEAR 10000 FEET.  
24 HR TREND......14% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE MORNING BECOMING  
LIGHT AND VARIABLE.  
MIXING HEIGHT.......9200 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......730.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS AROUND 50 IN THE VALLEYS AND IN THE  
LOWER 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS  
AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
MONDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS  
IN THE LOWER 50S 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.    
TUESDAY  
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.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE LOWER  
60S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE LOWER  
60S IN THE MOUNTAINS.  
=  
 
 
 
UTZ482-291230-  
WESTERN UINTAH BASIN-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MIN TEMPERATURE.....46-56.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........61-71%.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 10 MPH.  
   
FRIDAY  
 
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.....73-79 NEAR 6000 FEET.  
64-70 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........37-47%.  
24 HR TREND......4% WETTER NEAR 6000 FEET.  
1% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING WEST AROUND 10 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......9100 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......740.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER) UNTIL 2400,  
THEN PARTLY CLOUDY (30-40% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....44-54.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........62-72% NEAR 6000 FEET.  
52-62% NEAR 8000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....75-81 NEAR 6000 FEET.  
67-73 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........24-32%.  
24 HR TREND......13% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......10300 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......730.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER  
70S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER  
80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
PARTLY CLOUDY. ISOLATED 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.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S IN THE VALLEYS AND  
IN THE LOWER 70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS AROUND 80 IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ483-291230-  
SOUTHERN ASHLEY NATIONAL FOREST-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MIN TEMPERATURE.....46-56.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........55-61% NEAR 7000 FEET.  
61-71% NEAR 9000 FEET.  
24 HR TREND......19% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....69-75 NEAR 7000 FEET.  
60-66 NEAR 9000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........36-46% NEAR 7000 FEET.  
49-59% NEAR 9000 FEET.  
24 HR TREND......3% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHWEST AROUND 10  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......8100 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......630.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,  
THEN PARTLY CLOUDY (30-40% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....44-54.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........52-58% NEAR 7000 FEET.  
55-65% NEAR 9000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....72-78 NEAR 7000 FEET.  
63-69 NEAR 9000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........23-32% NEAR 7000 FEET.  
30-40% NEAR 9000 FEET.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......10300 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......720.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE MID 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.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER  
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID 50S IN THE  
MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS AND AROUND 70 IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN  
THE UPPER 60S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S IN THE VALLEYS AND  
IN THE UPPER 60S IN THE MOUNTAINS.  
=  
 
 
 
UTZ484-291230-  
TAVAPUTS PLATEAU-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED  
RAIN SHOWERS AFTER 2400.  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MIN TEMPERATURE.....53-61 NEAR 6000 FEET.  
49-58 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........57-66% NEAR 6000 FEET.  
63-73% NEAR 8000 FEET.  
24 HR TREND......15% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....74-80 NEAR 6000 FEET.  
63-69 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........38-48% NEAR 6000 FEET.  
44-54% NEAR 8000 FEET.  
24 HR TREND......8% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHWEST AROUND 10  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......7500 FT AGL.  
CLIMATOLOGY......40-50TH PERCENTILE.  
CLEARING INDEX......570.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....52-59 NEAR 6000 FEET.  
46-56 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........57-67% NEAR 6000 FEET.  
62-72% NEAR 8000 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 10% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....76-82 NEAR 6000 FEET.  
68-74 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........22-30% NEAR 6000 FEET.  
29-37% NEAR 8000 FEET.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......10200 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......700.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. 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. WINDS GENERALLY  
LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND  
IN THE MID 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE  
VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
TUESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS  
IN THE UPPER 50S 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.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 60 IN THE VALLEYS AND IN THE MID 50S IN THE  
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE MID  
70S IN THE MOUNTAINS.    
THURSDAY  
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 LOWER 80S IN THE VALLEYS AND IN THE LOWER  
70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ488-291230-  
MANTI NATIONAL FOREST-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400. SCATTERED  
RAIN SHOWERS AFTER 2400.  
CHANCE LIGHTNING....10%.  
CWR.................10%.  
MIN TEMPERATURE.....49-59 NEAR 6500 FEET.  
42-52 NEAR 8500 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........59-69% NEAR 6500 FEET.  
69-79% NEAR 8500 FEET.  
24 HR TREND......15% DRIER NEAR 6500 FEET.  
21% DRIER NEAR 8500 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 10 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....68-78 NEAR 6500 FEET.  
60-69 NEAR 8500 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........33-43% NEAR 6500 FEET.  
39-49% NEAR 8500 FEET.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......7800 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......660.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....46-56 NEAR 6500 FEET.  
40-50 NEAR 8500 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........55-65% NEAR 6500 FEET.  
65-75% NEAR 8500 FEET.  
24 HR TREND......6% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (25-35% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MAX TEMPERATURE.....71-80 NEAR 6500 FEET.  
63-71 NEAR 8500 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........21-29% NEAR 6500 FEET.  
24-34% NEAR 8500 FEET.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE MORNING BECOMING  
LIGHT AND VARIABLE.  
MIXING HEIGHT.......9700 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......730.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND  
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE  
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY  
LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND  
AROUND 50 IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS AND IN  
THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.   
TUESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
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.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE MID 50S IN THE VALLEYS AND AROUND  
50 IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN  
THE UPPER 60S IN THE MOUNTAINS.    
THURSDAY  
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 UPPER 70S IN THE VALLEYS AND IN THE UPPER  
60S IN THE MOUNTAINS.  
=  
 
 
 
UTZ489-291230-  
SAN RAFAEL SWELL-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400, THEN  
SCATTERED RAIN SHOWERS.  
CHANCE LIGHTNING....10%.  
CWR.................10%.  
MIN TEMPERATURE.....57-65 NEAR 5000 FEET.  
54-60 NEAR 7000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........52-61% NEAR 5000 FEET.  
58-64% NEAR 7000 FEET.  
24 HR TREND......20% DRIER NEAR 5000 FEET.  
14% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER) UNTIL 1200, THEN  
PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....77-83 NEAR 5000 FEET.  
68-74 NEAR 7000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........31-38% NEAR 5000 FEET.  
36-46% NEAR 7000 FEET.  
24 HR TREND......10% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......7400 FT AGL.  
CLIMATOLOGY......40-50TH PERCENTILE.  
CLEARING INDEX......620.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....51-61.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........54-64% NEAR 5000 FEET.  
49-59% NEAR 7000 FEET.  
24 HR TREND......5% WETTER NEAR 5000 FEET.  
5% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 10-15 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MAX TEMPERATURE.....83-89 NEAR 5000 FEET.  
73-79 NEAR 7000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........19-23% NEAR 5000 FEET.  
22-28% NEAR 7000 FEET.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHWEST AROUND 10  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......10600 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......730.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER  
80S IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER  
80S IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS  
AROUND 60. HIGHS AROUND 90 IN THE VALLEYS AND AROUND 80 IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 60. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE  
UPPER 70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. 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.  
=  
 
 
 
UTZ492-291230-  
CENTRAL UTAH WEST DESERT-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....53-63 NEAR 5000 FEET.  
46-56 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........60-70%.  
24 HR TREND......21% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
FRIDAY  
 
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.....78-84 NEAR 5000 FEET.  
64-70 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........23-33% NEAR 5000 FEET.  
34-44% NEAR 8000 FEET.  
24 HR TREND......2% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH IN THE MORNING BECOMING  
LIGHT AND VARIABLE.  
MIXING HEIGHT.......10500 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......900.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....50-60 NEAR 5000 FEET.  
45-55 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........58-68%.  
24 HR TREND......4% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHWEST AROUND 10  
MPH AFTER MIDNIGHT.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....79-86 NEAR 5000 FEET.  
66-72 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........15-23% NEAR 5000 FEET.  
22-31% NEAR 8000 FEET.  
24 HR TREND......9% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......10700 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......920.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND IN THE  
LOWER 50S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS  
AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE UPPER 50S 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.    
TUESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. 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 MID  
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
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 LOWER  
70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID 50S IN THE  
MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE LOWER  
70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ493-291230-  
CENTRAL UTAH MOUNTAINS-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). ISOLATED RAIN  
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.  
SCATTERED RAIN SHOWERS AFTER 2400.  
CHANCE LIGHTNING....20%.  
CWR.................20%.  
MIN TEMPERATURE.....45-55.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........76-86% NEAR 5000 FEET.  
68-78% NEAR 8000 FEET.  
24 HR TREND......7% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER) UNTIL 1200, THEN  
PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.  
63-71 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........35-41% NEAR 5000 FEET.  
37-47% NEAR 8000 FEET.  
24 HR TREND......2% DRIER NEAR 5000 FEET.  
4% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......8700 FT AGL.  
CLIMATOLOGY......50-60TH PERCENTILE.  
CLEARING INDEX......750.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,  
THEN MOSTLY CLEAR (15-25% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....44-54.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........68-78% NEAR 5000 FEET.  
63-73% NEAR 8000 FEET.  
24 HR TREND......9% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH AROUND 10 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.  
68-75 NEAR 8000 FEET.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........22-32%.  
24 HR TREND......15% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE MORNING BECOMING  
LIGHT AND VARIABLE.  
MIXING HEIGHT.......10600 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......780.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE MID 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 LOWER 50S. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN  
THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
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.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S IN THE  
VALLEYS AND IN THE MID 70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S IN THE  
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ494-291230-  
HENRY MOUNTAINS-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). ISOLATED RAIN  
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.  
SCATTERED RAIN SHOWERS AFTER 2400.  
CHANCE LIGHTNING....10%.  
CWR.................20%.  
MIN TEMPERATURE.....59-67 NEAR 5000 FEET.  
53-61 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........49-59% NEAR 5000 FEET.  
57-67% NEAR 8000 FEET.  
24 HR TREND......9% DRIER NEAR 5000 FEET.  
6% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING SOUTH AROUND 10 MPH  
AFTER MIDNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER) UNTIL 1200, THEN  
PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....77-83 NEAR 5000 FEET.  
63-73 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........26-34% NEAR 5000 FEET.  
39-49% NEAR 8000 FEET.  
24 HR TREND......10% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 15 MPH.  
MIXING HEIGHT.......7300 FT AGL.  
CLIMATOLOGY......30-40TH PERCENTILE.  
CLEARING INDEX......660.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....55-65 NEAR 5000 FEET.  
53-60 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........50-60%.  
24 HR TREND......4% DRIER NEAR 5000 FEET.  
11% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTH 10-15 MPH.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MAX TEMPERATURE.....81-87 NEAR 5000 FEET.  
67-77 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........16-20% NEAR 5000 FEET.  
24-31% NEAR 8000 FEET.  
24 HR TREND......13% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......10700 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......760.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE  
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY  
LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER  
80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLEAR. ISOLATED 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.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED 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 LOWER  
70S IN THE MOUNTAINS.    
THURSDAY  
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 LOWER  
70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ495-291230-  
COLOR COUNTRY WEST DESERT-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). ISOLATED SHOWERS  
AND THUNDERSTORMS UNTIL 2400, THEN SCATTERED  
RAIN SHOWERS.  
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....50-60.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........61-71% NEAR 5000 FEET.  
57-67% NEAR 7000 FEET.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED  
RAIN SHOWERS UNTIL 1200, THEN SCATTERED SHOWERS  
AND THUNDERSTORMS.  
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.  
CWR.................10%.  
MAX TEMPERATURE.....79-85 NEAR 5000 FEET.  
70-76 NEAR 7000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........24-34% NEAR 5000 FEET.  
29-37% NEAR 7000 FEET.  
24 HR TREND......2% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHEAST AROUND 10 MPH.  
MIXING HEIGHT.......9600 FT AGL.  
CLIMATOLOGY......60-70TH PERCENTILE.  
CLEARING INDEX......740.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........61-71% NEAR 5000 FEET.  
51-61% NEAR 7000 FEET.  
24 HR TREND......UNCHANGED NEAR 5000 FEET.  
6% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....82-88 NEAR 5000 FEET.  
72-79 NEAR 7000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........16-26%.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......10900 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS AROUND 50 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. 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. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE MID 50S IN THE VALLEYS AND IN THE  
LOWER 60S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS  
AND AROUND 80 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.   
WEDNESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE MID 50S IN THE VALLEYS AND AROUND  
60 IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN  
THE UPPER 70S IN THE MOUNTAINS.    
THURSDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
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 IN THE UPPER 70S IN THE MOUNTAINS.  
=  
 
 
 
UTZ496-291230-  
COLOR COUNTRY MOUNTAINS-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS.  
CHANCE LIGHTNING....20%.  
CWR.................30%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........72-82%.  
24 HR TREND......2% WETTER NEAR 6000 FEET.  
3% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER) UNTIL 1200, THEN  
PARTLY SUNNY (65-75% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....73-79 NEAR 6000 FEET.  
65-72 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........33-41% NEAR 6000 FEET.  
36-46% NEAR 8000 FEET.  
24 HR TREND......10% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE MORNING BECOMING  
LIGHT AND VARIABLE.  
MIXING HEIGHT.......7800 FT AGL.  
CLIMATOLOGY......40-50TH PERCENTILE.  
CLEARING INDEX......700.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,  
THEN MOSTLY CLEAR (15-25% CLOUD COVER).  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........65-75% NEAR 6000 FEET.  
59-69% NEAR 8000 FEET.  
24 HR TREND......12% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (35-45% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....78-84 NEAR 6000 FEET.  
70-77 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........19-25% NEAR 6000 FEET.  
21-29% NEAR 8000 FEET.  
24 HR TREND......15% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......10800 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......820.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
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 MID  
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 MID 80S IN THE VALLEYS AND IN THE UPPER  
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 60 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.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED 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.    
THURSDAY  
PARTLY CLOUDY. SCATTERED 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.  
=  
 
 
 
UTZ497-291230-  
MOJAVE DESERT-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN  
SHOWERS.  
CHANCE LIGHTNING....10%.  
CWR.................10%.  
MIN TEMPERATURE.....69-77 NEAR 3000 FEET.  
59-68 NEAR 6000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........47-57% NEAR 3000 FEET.  
52-62% NEAR 6000 FEET.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHEAST AROUND 10  
MPH AFTER MIDNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED  
RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER  
1200.  
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.  
CWR.................0%.  
MAX TEMPERATURE.....88-94 NEAR 3000 FEET.  
74-80 NEAR 6000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........25-29% NEAR 3000 FEET.  
31-37% NEAR 6000 FEET.  
24 HR TREND......7% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......9800 FT AGL.  
CLIMATOLOGY......40-50TH PERCENTILE.  
CLEARING INDEX......690.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (15-25% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....69-78 NEAR 3000 FEET.  
60-70 NEAR 6000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........42-52%.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHEAST AROUND 10  
MPH AFTER MIDNIGHT.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....93-99 NEAR 3000 FEET.  
79-85 NEAR 6000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........14-18% NEAR 3000 FEET.  
19-23% NEAR 6000 FEET.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHEAST AROUND 10  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......11900 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
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. WINDS GENERALLY LESS  
THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE MID 70S IN THE VALLEYS AND IN  
THE UPPER 60S IN THE MOUNTAINS. HIGHS AROUND 100 IN THE VALLEYS  
AND IN THE MID 80S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY  
PARTLY CLOUDY. ISOLATED 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.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED 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.    
THURSDAY  
PARTLY CLOUDY. ISOLATED 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.  
=  
 
 
 
UTZ498-291230-  
GRAND STAIRCASE-  
219 PM MDT THU AUG 28 2025  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS.  
CHANCE LIGHTNING....20%.  
CWR.................20%.  
MIN TEMPERATURE.....63-72 NEAR 4000 FEET.  
52-62 NEAR 6000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........47-57% NEAR 4000 FEET.  
62-72% NEAR 6000 FEET.  
24 HR TREND......2% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING SOUTH AROUND 15 MPH  
AFTER MIDNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER) UNTIL 1200, THEN  
PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....80-90 NEAR 4000 FEET.  
73-83 NEAR 6000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........22-32% NEAR 4000 FEET.  
31-37% NEAR 6000 FEET.  
24 HR TREND......11% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......8600 FT AGL.  
CLIMATOLOGY......40-50TH PERCENTILE.  
CLEARING INDEX......860.  
   
FRIDAY NIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,  
THEN MOSTLY CLEAR (20-30% CLOUD COVER).  
ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.  
CWR.................0%.  
MIN TEMPERATURE.....60-70 NEAR 4000 FEET.  
53-63 NEAR 6000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........44-54% NEAR 4000 FEET.  
49-59% NEAR 6000 FEET.  
24 HR TREND......3% DRIER NEAR 4000 FEET.  
10% DRIER NEAR 6000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING  
LIGHT AND VARIABLE.  
   
SATURDAY  
 
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MAX TEMPERATURE.....84-94 NEAR 4000 FEET.  
79-89 NEAR 6000 FEET.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........14-20% NEAR 4000 FEET.  
19-23% NEAR 6000 FEET.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....LIGHT AND VARIABLE.  
MIXING HEIGHT.......11200 FT AGL.  
CLIMATOLOGY......70-80TH PERCENTILE.  
CLEARING INDEX......800.  
   
FORECAST DAYS 3 THROUGH 7  
   
SUNDAY  
MOSTLY CLEAR. LOWS IN THE MID 60S IN THE VALLEYS AND IN  
THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE  
VALLEYS AND IN THE MID 80S IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
MONDAY  
MOSTLY CLEAR. LOWS IN THE MID 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.    
TUESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE UPPER 60S IN THE VALLEYS AND IN THE  
LOWER 60S IN THE MOUNTAINS. HIGHS IN THE MID 90S IN THE VALLEYS  
AND IN THE MID 80S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE UPPER 60S IN THE VALLEYS AND AROUND  
60 IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS AND IN  
THE MID 80S IN THE MOUNTAINS.    
THURSDAY  
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 LOWER 80S IN THE MOUNTAINS.  
=  
 
 
 
.8-14 DAY OUTLOOK FOR FRIDAY SEPTEMBER 05 TO THURSDAY SEPTEMBER 11  
TEMPERATURE... ABOVE NORMAL  
PRECIPITATION... ABOVE NORMAL  
=  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab UT Page
The Nexlab ID Page
The Nexlab WY Page
Main Text Page