531  
FNUS55 KSLC 180906  
FWFSLC  
 
FIRE WEATHER PLANNING FORECAST FOR UTAH  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
205 AM MST THU DEC 18 2025  
 
NOTICE TO ALL USERS: THIS PRODUCT IS AUTOMATICALLY GENERATED DURING  
THE COOL SEASON TO PROVIDE A GENERAL OUTLOOK. IT WILL NOT CONTAIN A  
DISCUSSION SECTION OR ADJUSTMENTS BY OUR METEOROLOGISTS. THE FULL  
FIRE WEATHER FORECAST WILL RESUME THE MORNING OF MAY 3, 2026.  
 
UTZ478-190100-  
SALT LAKE DESERT-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). NORTH OF  
I-80, AREAS OF SNOW. AREAS OF RAIN AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................20% NORTH OF I-80 AND 0% SOUTH OF I-80.  
MAX TEMPERATURE.....41-51 NEAR 5000 FEET.  
33-41 NEAR 8000 FEET.  
24 HR TREND......12 DEGREES COOLER NEAR 5000 FEET.  
6 DEGREES COOLER NEAR 8000 FEET.  
MIN HUMIDITY........45-55% NEAR 5000 FEET.  
51-61% NEAR 8000 FEET.  
24 HR TREND......10% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 45 MPH BECOMING AROUND 60 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......2200 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......190.  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....30-40.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........56-66% NEAR 5000 FEET.  
52-62% NEAR 8000 FEET.  
24 HR TREND......5% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING SOUTH  
AROUND 15 MPH AFTER MIDNIGHT.  
12K FT MSL WINDS....WEST AROUND 50 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NORTH OF I-80,  
AREAS OF RAIN UNTIL 1200, THEN WIDESPREAD RAIN.  
SOUTH OF I-80, AREAS OF RAIN AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................30% NORTH OF I-80 AND 0% SOUTH OF I-80.  
MAX TEMPERATURE.....49-59 NEAR 5000 FEET.  
37-46 NEAR 8000 FEET.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........39-49%.  
24 HR TREND......5% DRIER.  
20-FOOT WINDS.......SOUTH AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
MIXING HEIGHT.......2900 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......280.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
MID 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE  
MOUNTAINS. WEST WINDS AROUND 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS AROUND 40. HIGHS IN  
THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. SOUTH WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOCAL RAIN. LOWS IN THE UPPER 30S.  
HIGHS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE UPPER 30S.  
HIGHS IN THE LOWER 50S IN THE VALLEYS AND AROUND 40 IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ479-190100-  
WASATCH MOUNTAINS-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). NORTH OF  
I-80, WIDESPREAD SNOW AFTER 1200. SOUTH OF  
I-80, AREAS OF SNOW AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................20% NORTH OF I-80 AND 10% SOUTH OF I-80.  
MAX TEMPERATURE.....39-46 NEAR 5000 FEET.  
32-42 NEAR 8000 FEET.  
24 HR TREND......12 DEGREES COOLER NEAR 5000 FEET.  
6 DEGREES COOLER NEAR 8000 FEET.  
MIN HUMIDITY........43-53%.  
24 HR TREND......7% WETTER NEAR 5000 FEET.  
UNCHANGED NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH  
IN THE AFTERNOON.  
12K FT MSL WINDS....WEST 45-50 MPH.  
MIXING HEIGHT.......2800 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......360.  
   
TONIGHT  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NORTH OF I-80,  
AREAS OF SNOW UNTIL 2400.  
CHANCE LIGHTNING....0%.  
CWR.................10% NORTH OF I-80 AND 0% SOUTH OF I-80.  
MIN TEMPERATURE.....28-38.  
24 HR TREND......10 DEGREES WARMER.  
MAX HUMIDITY........69-79% NEAR 5000 FEET.  
61-71% NEAR 8000 FEET.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NORTH OF I-80,  
AREAS OF RAIN AND SNOW UNTIL 1200, THEN RAIN  
AND SNOW. SOUTH OF I-80, AREAS OF RAIN AND  
SNOW.  
CHANCE LIGHTNING....0%.  
CWR.................70% NORTH OF I-80 AND 20% SOUTH OF I-80.  
MAX TEMPERATURE.....43-53 NEAR 5000 FEET.  
36-46 NEAR 8000 FEET.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........53-63% NEAR 5000 FEET.  
49-59% NEAR 8000 FEET.  
24 HR TREND......6% WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
MIXING HEIGHT.......2800 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......460.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
SNOW AND RAIN. LOWS IN THE LOWER 30S. HIGHS IN THE  
MID 40S IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS. WEST  
WINDS AROUND 20 MPH.    
SUNDAY  
RAIN AND AREAS OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN  
THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
UPPER 30S IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS.  
HIGHS AROUND 50 IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. SOUTH WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
LOWER 30S. HIGHS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER  
40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
UPPER 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE LOWER 50S IN THE VALLEYS AND AROUND 40 IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ480-190100-  
UINTA MOUNTAINS-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER) UNTIL 1200,  
THEN CLOUDY (90-100% CLOUD COVER). AREAS OF  
SNOW AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................10%.  
MAX TEMPERATURE.....38-44 NEAR 7000 FEET.  
31-38 NEAR 9000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........39-45% NEAR 7000 FEET.  
32-42% NEAR 9000 FEET.  
24 HR TREND......2% WETTER NEAR 7000 FEET.  
10% DRIER NEAR 9000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTHWEST  
AROUND 15 MPH IN THE AFTERNOON. GUSTS UP TO 35  
MPH.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
MIXING HEIGHT.......2800 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......490.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER). LOCAL SNOW  
UNTIL 2400.  
CHANCE LIGHTNING....0%.  
CWR.................10%.  
MIN TEMPERATURE.....31-37 NEAR 7000 FEET.  
26-33 NEAR 9000 FEET.  
24 HR TREND......14 DEGREES WARMER.  
MAX HUMIDITY........60-70%.  
24 HR TREND......2% WETTER.  
20-FOOT WINDS.......SOUTHWEST 20-25 MPH WITH GUSTS TO AROUND 50  
MPH.  
12K FT MSL WINDS....WEST AROUND 50 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). AREAS OF  
SNOW UNTIL 1200, THEN WIDESPREAD SNOW.  
CHANCE LIGHTNING....0%.  
CWR.................30%.  
MAX TEMPERATURE.....45-51 NEAR 7000 FEET.  
36-46 NEAR 9000 FEET.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........50-54% NEAR 7000 FEET.  
39-49% NEAR 9000 FEET.  
24 HR TREND......8% WETTER.  
20-FOOT WINDS.......SOUTHWEST 20-25 MPH WITH GUSTS TO AROUND 50  
MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
MIXING HEIGHT.......3700 FT AGL.  
CLIMATOLOGY......30-40TH PERCENTILE.  
CLEARING INDEX......970.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
BREEZY, SNOW. LOWS IN THE MID 30S IN THE VALLEYS AND  
IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE LOWER 40S IN THE  
VALLEYS AND IN THE MID 30S IN THE MOUNTAINS. WEST WINDS AROUND  
25 MPH.    
SUNDAY  
AREAS OF SNOW AND RAIN. LOWS IN THE LOWER 30S IN THE  
VALLEYS AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE MID 40S  
IN THE VALLEYS AND IN THE UPPER 30S IN THE MOUNTAINS. SOUTHWEST  
WINDS AROUND 15 MPH.    
MONDAY  
MOSTLY CLOUDY. AREAS OF SNOW AND RAIN. LOWS IN THE  
UPPER 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE MID 40S IN THE VALLEYS AND AROUND 40 IN THE  
MOUNTAINS. SOUTHWEST WINDS AROUND 20 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOCAL SNOW. LOWS IN THE UPPER 30S IN  
THE VALLEYS AND AROUND 30 IN THE MOUNTAINS. HIGHS IN THE UPPER  
40S IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF SNOW. LOWS IN THE UPPER 30S  
IN THE VALLEYS AND AROUND 30 IN THE MOUNTAINS. HIGHS IN THE MID  
40S IN THE VALLEYS AND AROUND 40 IN THE MOUNTAINS.  
=  
 
 
 
UTZ481-190100-  
WESTERN ASHLEY NATIONAL FOREST-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,  
THEN MOSTLY CLOUDY (75-85% CLOUD COVER). AREAS  
OF SNOW AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................10%.  
MAX TEMPERATURE.....37-46 NEAR 7000 FEET.  
27-36 NEAR 10000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........30-40% NEAR 7000 FEET.  
34-44% NEAR 10000 FEET.  
24 HR TREND......14% DRIER NEAR 7000 FEET.  
19% DRIER NEAR 10000 FEET.  
20-FOOT WINDS.......WEST 15-20 MPH WITH GUSTS TO AROUND 40 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 50 MPH BECOMING WEST AROUND 35  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2600 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......410.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER) UNTIL 2400,  
THEN PARTLY CLOUDY (20-30% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....29-35 NEAR 7000 FEET.  
22-29 NEAR 10000 FEET.  
24 HR TREND......12 DEGREES WARMER.  
MAX HUMIDITY........56-66% NEAR 7000 FEET.  
61-71% NEAR 10000 FEET.  
24 HR TREND......16% WETTER.  
20-FOOT WINDS.......WEST 20-25 MPH WITH GUSTS TO AROUND 50 MPH.  
12K FT MSL WINDS....WEST 40-45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 1200,  
THEN MOSTLY CLOUDY (70-80% CLOUD COVER). AREAS  
OF SNOW.  
CHANCE LIGHTNING....0%.  
CWR.................20%.  
MAX TEMPERATURE.....45-55 NEAR 7000 FEET.  
34-44 NEAR 10000 FEET.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........41-51%.  
24 HR TREND......6% WETTER.  
20-FOOT WINDS.......WEST AROUND 25 MPH WITH GUSTS TO AROUND 55 MPH.  
12K FT MSL WINDS....WEST 50-55 MPH.  
MIXING HEIGHT.......3200 FT AGL.  
CLIMATOLOGY......30-40TH PERCENTILE.  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
BREEZY. WIDESPREAD SNOW. LOWS IN THE LOWER 30S IN THE  
VALLEYS AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE MID 40S  
IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS. WEST WINDS  
AROUND 25 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF SNOW. LOWS IN THE UPPER 20S IN  
THE VALLEYS AND IN THE LOWER 20S IN THE MOUNTAINS. HIGHS IN THE  
MID 40S IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. AREAS OF SNOW. LOWS IN THE MID 30S IN  
THE VALLEYS AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE  
UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE MOUNTAINS.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S IN THE VALLEYS  
AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE UPPER 40S IN  
THE VALLEYS AND IN THE UPPER 30S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF SNOW. LOWS AROUND 30 IN THE  
VALLEYS AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE MID 40S  
IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS.  
=  
 
 
 
UTZ482-190100-  
WESTERN UINTAH BASIN-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........SUNNY (20-30% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (45-55% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....41-47 NEAR 6000 FEET.  
35-41 NEAR 8000 FEET.  
24 HR TREND......12 DEGREES COOLER NEAR 6000 FEET.  
7 DEGREES COOLER NEAR 8000 FEET.  
MIN HUMIDITY........27-33% NEAR 6000 FEET.  
31-41% NEAR 8000 FEET.  
24 HR TREND......5% DRIER NEAR 6000 FEET.  
13% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 55 MPH BECOMING WEST AROUND 45  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3300 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......510.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (20-30% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....26-36.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........61-71% NEAR 6000 FEET.  
55-65% NEAR 8000 FEET.  
24 HR TREND......19% WETTER NEAR 6000 FEET.  
10% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING WEST  
AROUND 15 MPH AFTER MIDNIGHT.  
12K FT MSL WINDS....WEST 50-55 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,  
THEN PARTLY SUNNY (50-60% CLOUD COVER). AREAS  
OF RAIN AND SNOW AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....50-57 NEAR 6000 FEET.  
44-50 NEAR 8000 FEET.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........29-37% NEAR 6000 FEET.  
32-42% NEAR 8000 FEET.  
24 HR TREND......2% WETTER.  
20-FOOT WINDS.......WEST 15-20 MPH. GUSTS UP TO 40 MPH IN THE  
AFTERNOON.  
12K FT MSL WINDS....WEST AROUND 60 MPH.  
MIXING HEIGHT.......3100 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......560.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
MOSTLY CLOUDY. WIDESPREAD SNOW AND AREAS OF RAIN.  
LOWS IN THE MID 30S. HIGHS AROUND 50 IN THE VALLEYS AND IN THE  
LOWER 40S IN THE MOUNTAINS. WEST WINDS AROUND 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
LOWER 30S. HIGHS IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER  
40S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS AROUND  
50 IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS AROUND 30. HIGHS  
IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ483-190100-  
SOUTHERN ASHLEY NATIONAL FOREST-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........SUNNY (20-30% CLOUD COVER) UNTIL 1200, THEN  
PARTLY CLOUDY (35-45% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....41-47 NEAR 7000 FEET.  
32-38 NEAR 9000 FEET.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........30-37% NEAR 7000 FEET.  
38-48% NEAR 9000 FEET.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......WEST AROUND 15 MPH IN THE MORNING BECOMING  
UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 30 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 60 MPH BECOMING WEST AROUND 45  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3100 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......520.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (15-25% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....31-37 NEAR 7000 FEET.  
27-33 NEAR 9000 FEET.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........50-60% NEAR 7000 FEET.  
54-64% NEAR 9000 FEET.  
24 HR TREND......3% WETTER NEAR 7000 FEET.  
2% DRIER NEAR 9000 FEET.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,  
THEN PARTLY SUNNY (50-60% CLOUD COVER). AREAS  
OF SNOW AND RAIN AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....50-56 NEAR 7000 FEET.  
39-45 NEAR 9000 FEET.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........29-37% NEAR 7000 FEET.  
37-47% NEAR 9000 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 40  
MPH.  
12K FT MSL WINDS....WEST AROUND 60 MPH.  
MIXING HEIGHT.......2500 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......450.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
MOSTLY CLOUDY. AREAS OF SNOW AND RAIN. LOWS IN THE  
UPPER 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE  
MOUNTAINS. WEST WINDS AROUND 20 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE MID  
30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS  
IN THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S IN THE VALLEYS AND  
IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 50S IN THE  
VALLEYS AND AROUND 40 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S IN THE VALLEYS AND  
IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 40S IN THE  
VALLEYS AND IN THE UPPER 30S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
MID 30S IN THE VALLEYS AND AROUND 30 IN THE MOUNTAINS. HIGHS IN  
THE UPPER 40S IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS.  
=  
 
 
 
UTZ484-190100-  
TAVAPUTS PLATEAU-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....43-49 NEAR 6000 FEET.  
34-40 NEAR 8000 FEET.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........26-32% NEAR 6000 FEET.  
36-46% NEAR 8000 FEET.  
24 HR TREND......7% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 55 MPH BECOMING WEST AROUND 45  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3100 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......360.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (20-30% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....25-35.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........55-65% NEAR 6000 FEET.  
59-69% NEAR 8000 FEET.  
24 HR TREND......14% WETTER NEAR 6000 FEET.  
5% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 55 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....48-58 NEAR 6000 FEET.  
40-48 NEAR 8000 FEET.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........29-39% NEAR 6000 FEET.  
37-47% NEAR 8000 FEET.  
24 HR TREND......2% WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
12K FT MSL WINDS....WEST AROUND 60 MPH.  
MIXING HEIGHT.......2400 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......290.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
UPPER 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. WEST WINDS AROUND 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE LOWER 30S.  
HIGHS AROUND 50 IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ488-190100-  
MANTI NATIONAL FOREST-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 1200,  
THEN MOSTLY CLOUDY (65-75% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....41-49 NEAR 6500 FEET.  
32-42 NEAR 8500 FEET.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........36-46% NEAR 6500 FEET.  
42-52% NEAR 8500 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 55 MPH BECOMING WEST AROUND 45  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2500 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......350.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 2400,  
THEN MOSTLY CLOUDY (70-80% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....28-38.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........59-69%.  
24 HR TREND......4% DRIER NEAR 6500 FEET.  
9% DRIER NEAR 8500 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING  
SOUTHWEST AROUND 15 MPH AFTER MIDNIGHT. GUSTS  
UP TO 30 MPH.  
12K FT MSL WINDS....WEST AROUND 50 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). AREAS OF  
SNOW AND RAIN AFTER 1200.  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....47-56 NEAR 6500 FEET.  
40-50 NEAR 8500 FEET.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........29-39% NEAR 6500 FEET.  
34-44% NEAR 8500 FEET.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
12K FT MSL WINDS....WEST 50-55 MPH.  
MIXING HEIGHT.......2200 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......330.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
MOSTLY CLOUDY. AREAS OF SNOW AND RAIN. LOWS IN THE  
MID 30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS.  
HIGHS IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. WEST WINDS AROUND 20 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE MID  
30S IN THE VALLEYS AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS  
IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS AROUND  
50 IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 40S IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF SNOW AND RAIN. LOWS IN THE  
MID 30S IN THE VALLEYS AND AROUND 30 IN THE MOUNTAINS. HIGHS IN  
THE MID 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE MOUNTAINS.  
=  
 
 
 
UTZ489-190100-  
SAN RAFAEL SWELL-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....46-52 NEAR 5000 FEET.  
40-46 NEAR 7000 FEET.  
24 HR TREND......3 DEGREES COOLER NEAR 5000 FEET.  
8 DEGREES COOLER NEAR 7000 FEET.  
MIN HUMIDITY........27-35% NEAR 5000 FEET.  
32-41% NEAR 7000 FEET.  
24 HR TREND......7% DRIER NEAR 5000 FEET.  
1% WETTER NEAR 7000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 45-50 MPH.  
MIXING HEIGHT.......2700 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......170.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (20-30% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....24-33 NEAR 5000 FEET.  
28-34 NEAR 7000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........64-74% NEAR 5000 FEET.  
54-64% NEAR 7000 FEET.  
24 HR TREND......5% WETTER NEAR 5000 FEET.  
UNCHANGED NEAR 7000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST 45-50 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....49-55 NEAR 5000 FEET.  
43-53 NEAR 7000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........30-40%.  
24 HR TREND......5% WETTER NEAR 5000 FEET.  
3% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST 50-55 MPH.  
MIXING HEIGHT.......2100 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......120.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. AREAS OF RAIN. LOWS IN THE LOWER 30S  
IN THE VALLEYS AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE  
MID 50S IN THE VALLEYS AND AROUND 50 IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
SUNDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. LOCAL RAIN. LOWS IN THE LOWER 30S.  
HIGHS IN THE MID 50S IN THE VALLEYS AND IN THE MID 40S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ492-190100-  
CENTRAL UTAH WEST DESERT-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,  
THEN PARTLY SUNNY (65-75% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....48-58 NEAR 5000 FEET.  
38-47 NEAR 8000 FEET.  
24 HR TREND......14 DEGREES COOLER NEAR 5000 FEET.  
8 DEGREES COOLER NEAR 8000 FEET.  
MIN HUMIDITY........35-45% NEAR 5000 FEET.  
39-49% NEAR 8000 FEET.  
24 HR TREND......15% WETTER NEAR 5000 FEET.  
5% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 45-50 MPH.  
MIXING HEIGHT.......3000 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......290.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....32-42.  
24 HR TREND......11 DEGREES WARMER.  
MAX HUMIDITY........52-62% NEAR 5000 FEET.  
47-57% NEAR 8000 FEET.  
24 HR TREND......21% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING SOUTH  
AROUND 15 MPH AFTER MIDNIGHT.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....56-66 NEAR 5000 FEET.  
45-53 NEAR 8000 FEET.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........23-33% NEAR 5000 FEET.  
29-39% NEAR 8000 FEET.  
24 HR TREND......12% DRIER.  
20-FOOT WINDS.......SOUTH AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
12K FT MSL WINDS....WEST 45-50 MPH.  
MIXING HEIGHT.......3400 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......520.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE UPPER 30S.  
HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID 40S IN THE  
MOUNTAINS. SOUTHWEST WINDS AROUND 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE UPPER 30S.  
HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID 40S IN THE  
MOUNTAINS. SOUTH WINDS AROUND 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.  
SOUTH WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE UPPER 30S.  
HIGHS IN THE MID 50S IN THE VALLEYS AND IN THE MID 40S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ493-190100-  
CENTRAL UTAH MOUNTAINS-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....50-56 NEAR 5000 FEET.  
42-51 NEAR 8000 FEET.  
24 HR TREND......14 DEGREES COOLER NEAR 5000 FEET.  
6 DEGREES COOLER NEAR 8000 FEET.  
MIN HUMIDITY........32-42%.  
24 HR TREND......12% WETTER NEAR 5000 FEET.  
3% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 40-45 MPH.  
MIXING HEIGHT.......3800 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......460.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....30-40.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........59-68% NEAR 5000 FEET.  
53-63% NEAR 8000 FEET.  
24 HR TREND......29% DRIER NEAR 5000 FEET.  
13% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING  
SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH AFTER MIDNIGHT.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....AROUND 63 NEAR 5000 FEET.  
49-58 NEAR 8000 FEET.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........22-32%.  
24 HR TREND......10% DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
12K FT MSL WINDS....WEST 45-50 MPH.  
MIXING HEIGHT.......3600 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......590.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. AREAS OF RAIN. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE  
MOUNTAINS. WEST WINDS AROUND 20 MPH.    
SUNDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER  
50S IN THE VALLEYS AND AROUND 50 IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
LOWER 30S. HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID  
40S IN THE MOUNTAINS.  
=  
 
 
 
UTZ494-190100-  
HENRY MOUNTAINS-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 1200,  
THEN SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....49-56 NEAR 5000 FEET.  
41-48 NEAR 8000 FEET.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........29-38% NEAR 5000 FEET.  
37-47% NEAR 8000 FEET.  
24 HR TREND......3% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 40-45 MPH.  
MIXING HEIGHT.......2700 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......180.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....28-38.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........61-71% NEAR 5000 FEET.  
39-49% NEAR 8000 FEET.  
24 HR TREND......2% DRIER NEAR 5000 FEET.  
8% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (45-55% CLOUD COVER) UNTIL 1200,  
THEN PARTLY CLOUDY (30-40% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....53-63 NEAR 5000 FEET.  
44-52 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........28-36% NEAR 5000 FEET.  
30-40% NEAR 8000 FEET.  
24 HR TREND......2% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING SOUTH AROUND  
15 MPH IN THE AFTERNOON.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
MIXING HEIGHT.......2300 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......240.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY  
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. SOUTH  
WINDS AROUND 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.  
SOUTH WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. LOCAL RAIN. LOWS IN THE MID 30S.  
HIGHS IN THE MID 50S IN THE VALLEYS AND IN THE MID 40S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ495-190100-  
COLOR COUNTRY WEST DESERT-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....55-61 NEAR 5000 FEET.  
48-54 NEAR 7000 FEET.  
24 HR TREND......11 DEGREES COOLER NEAR 5000 FEET.  
6 DEGREES COOLER NEAR 7000 FEET.  
MIN HUMIDITY........29-39%.  
24 HR TREND......14% WETTER NEAR 5000 FEET.  
5% WETTER NEAR 7000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH.  
MIXING HEIGHT.......3300 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......360.  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....31-41 NEAR 5000 FEET.  
36-46 NEAR 7000 FEET.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........59-69% NEAR 5000 FEET.  
45-55% NEAR 7000 FEET.  
24 HR TREND......25% DRIER NEAR 5000 FEET.  
15% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING SOUTH  
AROUND 15 MPH AFTER MIDNIGHT.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....59-65 NEAR 5000 FEET.  
51-57 NEAR 7000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........26-36%.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30  
MPH.  
12K FT MSL WINDS....WEST 45-50 MPH.  
MIXING HEIGHT.......3300 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......590.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 30S IN THE VALLEYS  
AND IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN  
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. SOUTHWEST  
WINDS AROUND 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 30S IN THE VALLEYS AND  
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN THE  
VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. SOUTH WINDS AROUND  
15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND  
60 IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. SOUTH  
WINDS AROUND 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S IN THE VALLEYS AND  
AROUND 40 IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE LOWER 50S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE LOWER 30S  
IN THE VALLEYS AND AROUND 40 IN THE MOUNTAINS. HIGHS IN THE UPPER  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.  
=  
 
 
 
UTZ496-190100-  
COLOR COUNTRY MOUNTAINS-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 1200,  
THEN SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....51-61 NEAR 6000 FEET.  
46-54 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........28-38%.  
24 HR TREND......9% WETTER NEAR 6000 FEET.  
3% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH.  
MIXING HEIGHT.......3500 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......440.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,  
THEN MOSTLY CLOUDY (50-60% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....29-39.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........58-68% NEAR 6000 FEET.  
53-63% NEAR 8000 FEET.  
24 HR TREND......9% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....53-63 NEAR 6000 FEET.  
48-58 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........24-34%.  
24 HR TREND......4% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
MIXING HEIGHT.......3200 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......460.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE  
UPPER 50S IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY  
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND AROUND 50 IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN AND SNOW. LOWS IN THE  
LOWER 30S. HIGHS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID  
40S IN THE MOUNTAINS.  
=  
 
 
 
UTZ497-190100-  
MOJAVE DESERT-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........PARTLY CLOUDY (20-30% CLOUD COVER) UNTIL 1200,  
THEN SUNNY (15-25% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....61-67 NEAR 3000 FEET.  
53-59 NEAR 6000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........24-34%.  
24 HR TREND......7% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH.  
MIXING HEIGHT.......3000 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......180.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....40-50 NEAR 3000 FEET.  
37-46 NEAR 6000 FEET.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........50-60% NEAR 3000 FEET.  
42-52% NEAR 6000 FEET.  
24 HR TREND......1% WETTER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH BECOMING WEST AROUND 35  
MPH AFTER MIDNIGHT.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....61-67 NEAR 3000 FEET.  
50-58 NEAR 6000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........27-34% NEAR 3000 FEET.  
30-40% NEAR 6000 FEET.  
24 HR TREND......2% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....WEST 35-40 MPH.  
MIXING HEIGHT.......3400 FT AGL.  
CLIMATOLOGY......10-20TH PERCENTILE.  
CLEARING INDEX......220.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE  
MID 60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
SUNDAY  
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE MID  
60S IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY  
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID  
60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID  
60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE MID 40S.  
HIGHS IN THE LOWER 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE  
MOUNTAINS.  
=  
 
 
 
UTZ498-190100-  
GRAND STAIRCASE-  
205 AM MST THU DEC 18 2025  
   
TODAY  
 
SKY/WEATHER.........SUNNY (20-30% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....53-62 NEAR 4000 FEET.  
49-59 NEAR 6000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........30-40% NEAR 4000 FEET.  
26-36% NEAR 6000 FEET.  
24 HR TREND......6% WETTER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST 40-45 MPH.  
MIXING HEIGHT.......3100 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......280.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MIN TEMPERATURE.....32-42.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........59-69%.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.  
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH.  
   
FRIDAY  
 
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).  
CHANCE LIGHTNING....0%.  
CWR.................0%.  
MAX TEMPERATURE.....57-66 NEAR 4000 FEET.  
52-62 NEAR 6000 FEET.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........25-35%.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH  
IN THE AFTERNOON.  
12K FT MSL WINDS....WEST AROUND 45 MPH.  
MIXING HEIGHT.......3200 FT AGL.  
CLIMATOLOGY......20-30TH PERCENTILE.  
CLEARING INDEX......420.  
   
FORECAST DAYS 3 THROUGH 7  
   
SATURDAY  
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE  
LOWER 60S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY  
PARTLY CLOUDY. 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.    
MONDAY  
MOSTLY CLOUDY. LOWS AROUND 40 IN THE VALLEYS AND IN THE  
MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS  
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN  
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS.    
WEDNESDAY  
MOSTLY CLOUDY. AREAS OF RAIN. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN THE LOWER 50S IN THE  
MOUNTAINS.  
=  
 
 
 
.8-14 DAY OUTLOOK FOR THURSDAY DECEMBER 25 TO WEDNESDAY DECEMBER 31  
TEMPERATURE... ABOVE NORMAL  
PRECIPITATION... ABOVE NORMAL  
=  
 
 
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