752
FNUS55 KSLC 181053
FWFSLC
FIRE WEATHER PLANNING FORECAST FOR UTAH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
453 AM MDT MON MAY 18 2026
...MUCH COOLER TODAY, THEN GRADUAL WARMING TREND THROUGH THE
WEEKEND...
BROADCAST DISCUSSION
THE COLD WEATHER SYSTEM WILL EXIT THE
REGION THIS MORNING, WITH SOME LINGERING SHOWERS AND GUSTY POST
FRONTAL WINDS TAPERING OFF BY THIS AFTERNOON. MUCH COLDER
TEMPERATURES ARE EXPECTED IN ITS WAKE THROUGH TUESDAY MORNING.
OTHERWISE, A WARMING AND DRYING TREND IS EXPECTED TO PREVAIL
THROUGH THE REMAINDER OF THE WEEK.
DISCUSSION
A POTENT, UNSEASONABLY COLD STORM BROUGHT WIDESPREAD
PRECIPITATION TO THE STATE OVERNIGHT, INCLUDING SNOW DOWN TO 5500
FEET IN AREAS ACROSS CENTRAL AND EASTERN UTAH. ANY LINGERING SHOWERS
AND GUSTY POST FRONTAL WINDS ARE EXPECTED TO TAPER OFF BY THIS
AFTERNOON AS THE ASSOCIATED LOW PRESSURE SYSTEM EXITS THE REGION.
MUCH COLDER CONDITIONS ARE EXPECTED ACROSS THE STATE THROUGH
TUESDAY MORNING. UTAH BECOMES CENTERED BETWEEN HIGH PRESSURE
DEVELOPING ALONG THE WEST COAST AND A LONGWAVE TROUGHING PATTERN
TUESDAY ONWARD, WHICH WILL SUPPORT A GRADUAL WARMING AND DRYING
TREND THROUGH THE WEEKEND.
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***
UTZ478-190030-
SALT LAKE DESERT-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SOUTH OF
I-80, NUMEROUS RAIN SHOWERS AND SCATTERED SNOW
SHOWERS UNTIL 1200.
CHANCE LIGHTNING....10%.
CWR.................0% NORTH OF I-80 AND 20% SOUTH OF I-80.
MAX TEMPERATURE.....51-59 NEAR 5000 FEET.
37-44 NEAR 8000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........26-36% NEAR 5000 FEET.
32-42% NEAR 8000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......NORTH 20-25 MPH WITH GUSTS TO AROUND 45 MPH.
12K FT MSL WINDS....NORTH AROUND 40 MPH BECOMING NORTHEAST AROUND
25 MPH IN THE AFTERNOON.
MIXING HEIGHT.......11200 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....30-40 NEAR 5000 FEET.
25-34 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........63-73% NEAR 5000 FEET.
57-67% NEAR 8000 FEET.
24 HR TREND......1% DRIER NEAR 5000 FEET.
17% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....NORTH AROUND 20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....57-64 NEAR 5000 FEET.
43-50 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........16-26% NEAR 5000 FEET.
22-32% NEAR 8000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......12300 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......960.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
AROUND 40 IN THE MOUNTAINS. HIGHS AROUND 70 IN THE VALLEYS AND IN
THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS AROUND
80 IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ479-190030-
WASATCH MOUNTAINS-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SNOW SHOWERS
UNTIL 1200. NORTH OF I-80, SCATTERED RAIN
SHOWERS. SCATTERED SNOW SHOWERS AND ISOLATED
THUNDERSTORMS AFTER 1200. SOUTH OF I-80, SNOW
SHOWERS UNTIL 1200, THEN ISOLATED RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................50% NORTH OF I-80 AND 40% SOUTH OF I-80.
MAX TEMPERATURE.....49-55 NEAR 5000 FEET.
33-43 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER NEAR 5000 FEET.
6 DEGREES COOLER NEAR 8000 FEET.
MIN HUMIDITY........38-48% NEAR 5000 FEET.
60-70% NEAR 8000 FEET.
24 HR TREND......8% WETTER NEAR 5000 FEET.
23% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH
IN THE MORNING BECOMING UPSLOPE/UPVALLEY 5-10
MPH.
12K FT MSL WINDS....NORTHEAST AROUND 30 MPH BECOMING AROUND 15 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......6200 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......870.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER). SOUTH
OF I-80, SCATTERED SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................0% NORTH OF I-80 AND 10% SOUTH OF I-80.
MIN TEMPERATURE.....24-34 NEAR 5000 FEET.
20-30 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........76-86% NEAR 5000 FEET.
72-82% NEAR 8000 FEET.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER). SOUTH OF
I-80, ISOLATED THUNDERSTORMS AND SNOW SHOWERS
AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....56-63 NEAR 5000 FEET.
42-52 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........23-29% NEAR 5000 FEET.
33-43% NEAR 8000 FEET.
24 HR TREND......16% DRIER NEAR 5000 FEET.
27% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......9200 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......740.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 30S IN THE VALLEYS AND IN THE MID 30S IN THE
MOUNTAINS. HIGHS IN THE UPPER 60S IN THE VALLEYS AND IN THE MID
50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER
70S IN THE VALLEYS AND AROUND 60 IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS AROUND
80 IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ480-190030-
UINTA MOUNTAINS-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SNOW SHOWERS
UNTIL 1200, THEN ISOLATED THUNDERSTORMS AND
SNOW SHOWERS.
CHANCE LIGHTNING....10%.
CWR.................90%.
MAX TEMPERATURE.....39-45 NEAR 7000 FEET.
31-39 NEAR 9000 FEET.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........53-60% NEAR 7000 FEET.
60-70% NEAR 9000 FEET.
24 HR TREND......10% WETTER NEAR 7000 FEET.
3% WETTER NEAR 9000 FEET.
20-FOOT WINDS.......NORTH AROUND 25 MPH BECOMING NORTHEAST AROUND
15 MPH IN THE AFTERNOON. GUSTS UP TO 40 MPH.
12K FT MSL WINDS....NORTHEAST AROUND 40 MPH BECOMING AROUND 30 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......4600 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER). SCATTERED
SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................10%.
MIN TEMPERATURE.....23-29 NEAR 7000 FEET.
12-21 NEAR 9000 FEET.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........71-81% NEAR 7000 FEET.
83-93% NEAR 9000 FEET.
24 HR TREND......12% DRIER NEAR 7000 FEET.
5% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTH AROUND 15 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (65-75% CLOUD COVER). SCATTERED
SNOW SHOWERS AND ISOLATED THUNDERSTORMS AFTER
1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................20%.
MAX TEMPERATURE.....47-53 NEAR 7000 FEET.
36-44 NEAR 9000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........29-35% NEAR 7000 FEET.
39-49% NEAR 9000 FEET.
24 HR TREND......21% 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.......7300 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......620.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S IN THE VALLEYS
AND AROUND 18 IN THE MOUNTAINS. HIGHS IN THE MID 50S IN THE
VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS, THUNDERSTORMS
AND SNOW SHOWERS. LOWS IN THE MID 30S IN THE VALLEYS AND IN THE
UPPER 20S IN THE MOUNTAINS. HIGHS AROUND 60 IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED THUNDERSTORMS AND SNOW SHOWERS.
LOWS IN THE UPPER 30S IN THE VALLEYS AND IN THE UPPER 20S IN THE
MOUNTAINS. HIGHS IN THE MID 60S IN THE VALLEYS AND IN THE MID 50S
IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE
VALLEYS AND AROUND 60 IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
=
UTZ481-190030-
WESTERN ASHLEY NATIONAL FOREST-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NUMEROUS SNOW
SHOWERS UNTIL 1200, THEN SCATTERED SNOW SHOWERS
AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................60%.
MAX TEMPERATURE.....42-49 NEAR 7000 FEET.
27-36 NEAR 10000 FEET.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........46-56% NEAR 7000 FEET.
56-66% NEAR 10000 FEET.
24 HR TREND......2% DRIER NEAR 7000 FEET.
4% WETTER NEAR 10000 FEET.
20-FOOT WINDS.......NORTH AROUND 35 MPH WITH GUSTS TO AROUND 60 MPH
BECOMING NORTHEAST AROUND 25 MPH WITH GUSTS TO
AROUND 45 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHEAST AROUND 30 MPH BECOMING AROUND 20 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......4400 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED
SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................40%.
MIN TEMPERATURE.....23-29 NEAR 7000 FEET.
13-23 NEAR 10000 FEET.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........61-71% NEAR 7000 FEET.
69-79% NEAR 10000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTH AROUND 10 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). NUMEROUS
SNOW SHOWERS AND ISOLATED THUNDERSTORMS AFTER
1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................30%.
MAX TEMPERATURE.....46-53 NEAR 7000 FEET.
32-40 NEAR 10000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........42-52% NEAR 7000 FEET.
50-60% NEAR 10000 FEET.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......5800 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......520.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS IN THE
MID 20S IN THE VALLEYS AND AROUND 17 IN THE MOUNTAINS. HIGHS IN
THE MID 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. SCATTERED THUNDERSTORMS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S IN THE VALLEYS AND IN THE MID 20S
IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN THE VALLEYS AND IN
THE MID 40S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED THUNDERSTORMS AND SNOW SHOWERS.
LOWS IN THE MID 30S IN THE VALLEYS AND IN THE UPPER 20S IN THE
MOUNTAINS. HIGHS IN THE LOWER 60S IN THE VALLEYS AND AROUND 50 IN
THE MOUNTAINS. WEST WINDS AROUND 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
=
UTZ482-190030-
WESTERN UINTAH BASIN-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN AND
SNOW SHOWERS UNTIL 1200, THEN SCATTERED RAIN
SHOWERS, SNOW SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................30%.
MAX TEMPERATURE.....43-49 NEAR 6000 FEET.
36-42 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........53-63%.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY
5-10 MPH.
12K FT MSL WINDS....NORTHEAST 10-15 MPH.
MIXING HEIGHT.......5900 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......850.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 2400. PATCHY FROST
AFTER 2400.
CHANCE LIGHTNING....0%.
CWR.................20%.
MIN TEMPERATURE.....26-32 NEAR 6000 FEET.
22-28 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........78-88%.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTH AROUND 10 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (55-65% CLOUD COVER). PATCHY
FROST UNTIL 1200. SCATTERED SNOW SHOWERS,
ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....48-54 NEAR 6000 FEET.
41-47 NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........41-51%.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......610.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS IN THE MID 60S IN THE VALLEYS AND IN
THE UPPER 50S IN THE MOUNTAINS. WEST WINDS AROUND 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ483-190030-
SOUTHERN ASHLEY NATIONAL FOREST-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NUMEROUS SNOW
SHOWERS UNTIL 1200, THEN SCATTERED SNOW SHOWERS
AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................30%.
MAX TEMPERATURE.....39-45 NEAR 7000 FEET.
30-36 NEAR 9000 FEET.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........61-71% NEAR 7000 FEET.
76-86% NEAR 9000 FEET.
24 HR TREND......20% WETTER NEAR 7000 FEET.
33% WETTER NEAR 9000 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35
MPH IN THE MORNING BECOMING UPSLOPE/UPVALLEY
5-10 MPH.
12K FT MSL WINDS....NORTH 10-15 MPH.
MIXING HEIGHT.......4500 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......810.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
SCATTERED SNOW SHOWERS UNTIL 2400.
CHANCE LIGHTNING....0%.
CWR.................10%.
MIN TEMPERATURE.....25-31 NEAR 7000 FEET.
19-25 NEAR 9000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........72-78% NEAR 7000 FEET.
82-92% NEAR 9000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (50-60% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....46-52 NEAR 7000 FEET.
37-43 NEAR 9000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........42-52% NEAR 7000 FEET.
51-61% NEAR 9000 FEET.
24 HR TREND......20% DRIER NEAR 7000 FEET.
26% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7200 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......630.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE MID 50S IN THE
VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN
THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN THE
VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE LOWER 40S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE VALLEYS
AND IN THE LOWER 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
=
UTZ484-190030-
TAVAPUTS PLATEAU-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SNOW SHOWERS AND
RAIN SHOWERS UNTIL 1200, THEN SCATTERED SNOW
SHOWERS, RAIN SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................50%.
MAX TEMPERATURE.....43-49 NEAR 6000 FEET.
36-42 NEAR 8000 FEET.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........56-66% NEAR 6000 FEET.
67-77% NEAR 8000 FEET.
24 HR TREND......15% WETTER NEAR 6000 FEET.
26% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH IN THE MORNING BECOMING
UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 30 MPH.
12K FT MSL WINDS....SOUTHEAST AROUND 10 MPH BECOMING NORTH IN THE
AFTERNOON.
MIXING HEIGHT.......5000 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......760.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....28-34 NEAR 6000 FEET.
21-30 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........67-77% NEAR 6000 FEET.
74-84% NEAR 8000 FEET.
24 HR TREND......9% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....51-57 NEAR 6000 FEET.
43-49 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........37-47% NEAR 6000 FEET.
43-53% NEAR 8000 FEET.
24 HR TREND......19% DRIER NEAR 6000 FEET.
24% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7500 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......580.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S IN THE VALLEYS AND
IN THE UPPER 20S IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE
VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS AROUND 50 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.
=
UTZ488-190030-
MANTI NATIONAL FOREST-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SNOW SHOWERS UNTIL
1200, THEN SCATTERED SNOW SHOWERS AND ISOLATED
THUNDERSTORMS.
CHANCE LIGHTNING....10%.
CWR.................60%.
MAX TEMPERATURE.....41-50 NEAR 6500 FEET.
30-40 NEAR 8500 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........50-60% NEAR 6500 FEET.
65-75% NEAR 8500 FEET.
24 HR TREND......21% WETTER NEAR 6500 FEET.
32% WETTER NEAR 8500 FEET.
20-FOOT WINDS.......NORTHWEST AROUND 30 MPH WITH GUSTS TO AROUND 55
MPH BECOMING AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST AROUND 35 MPH BECOMING AROUND 20 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......5000 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....23-33 NEAR 6500 FEET.
18-28 NEAR 8500 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........76-86%.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (60-70% CLOUD COVER).
ISOLATED RAIN SHOWERS, THUNDERSTORMS AND SNOW
SHOWERS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....48-57 NEAR 6500 FEET.
37-47 NEAR 8500 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........32-42% NEAR 6500 FEET.
42-52% NEAR 8500 FEET.
24 HR TREND......17% DRIER NEAR 6500 FEET.
25% DRIER NEAR 8500 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7200 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......720.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 20S IN THE MOUNTAINS. HIGHS IN THE UPPER 50S IN
THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WEST WINDS
AROUND 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS AROUND 40 IN THE VALLEYS AND IN THE
MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE VALLEYS
AND IN THE UPPER 50S IN THE MOUNTAINS. WEST WINDS AROUND 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE LOWER 70S
IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ489-190030-
SAN RAFAEL SWELL-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 1200. ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................10%.
MAX TEMPERATURE.....53-59 NEAR 5000 FEET.
44-50 NEAR 7000 FEET.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........37-47% NEAR 5000 FEET.
47-57% NEAR 7000 FEET.
24 HR TREND......13% WETTER NEAR 5000 FEET.
18% WETTER NEAR 7000 FEET.
20-FOOT WINDS.......NORTHWEST 15-20 MPH WITH GUSTS TO AROUND 40
MPH.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......7500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (35-45% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....34-41 NEAR 5000 FEET.
29-36 NEAR 7000 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........63-73%.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (50-60% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....60-66 NEAR 5000 FEET.
49-55 NEAR 7000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........24-30% NEAR 5000 FEET.
31-39% NEAR 7000 FEET.
24 HR TREND......14% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8400 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......790.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS.
=
UTZ492-190030-
CENTRAL UTAH WEST DESERT-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED
RAIN AND SNOW SHOWERS UNTIL 1200.
CHANCE LIGHTNING....10%.
CWR.................20%.
MAX TEMPERATURE.....51-59 NEAR 5000 FEET.
35-45 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER NEAR 5000 FEET.
8 DEGREES COOLER NEAR 8000 FEET.
MIN HUMIDITY........27-37% NEAR 5000 FEET.
46-56% NEAR 8000 FEET.
24 HR TREND......3% WETTER NEAR 5000 FEET.
19% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTH 20-25 MPH. GUSTS UP TO 45 MPH DECREASING
TO 35 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTH AROUND 45 MPH BECOMING AROUND 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......9600 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,
THEN MOSTLY CLEAR (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....28-38 NEAR 5000 FEET.
22-32 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........61-71%.
24 HR TREND......13% DRIER NEAR 5000 FEET.
20% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 15-20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....59-65 NEAR 5000 FEET.
44-50 NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........15-25% NEAR 5000 FEET.
25-35% NEAR 8000 FEET.
24 HR TREND......9% DRIER NEAR 5000 FEET.
23% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHEAST 10-15 MPH.
MIXING HEIGHT.......11700 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S IN THE VALLEYS AND
IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE
VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE MID
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ493-190030-
CENTRAL UTAH MOUNTAINS-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED SNOW
SHOWERS UNTIL 1200. ISOLATED THUNDERSTORMS AND
SNOW SHOWERS AFTER 1200.
CHANCE LIGHTNING....10%.
CWR.................30%.
MAX TEMPERATURE.....48-54 NEAR 5000 FEET.
37-46 NEAR 8000 FEET.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........49-55% NEAR 5000 FEET.
51-61% NEAR 8000 FEET.
24 HR TREND......27% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 25 MPH WITH GUSTS TO AROUND 45
MPH BECOMING AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST AROUND 45 MPH BECOMING AROUND 25 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......5600 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....20-30.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........77-87% NEAR 5000 FEET.
68-78% 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.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,
THEN MOSTLY CLOUDY (75-85% CLOUD COVER).
ISOLATED THUNDERSTORMS AND SNOW SHOWERS AFTER
1200.
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....57-63 NEAR 5000 FEET.
45-51 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........28-32% NEAR 5000 FEET.
34-44% 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.......8300 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......780.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER
70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
WEST WINDS AROUND 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID 80S
IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ494-190030-
HENRY MOUNTAINS-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED
RAIN SHOWERS UNTIL 1200.
CHANCE LIGHTNING....0%.
CWR.................10%.
MAX TEMPERATURE.....55-62 NEAR 5000 FEET.
42-52 NEAR 8000 FEET.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........29-39% NEAR 5000 FEET.
44-54% NEAR 8000 FEET.
24 HR TREND......22% WETTER NEAR 5000 FEET.
33% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 35 MPH
BECOMING NORTHWEST IN THE AFTERNOON.
12K FT MSL WINDS....NORTHWEST AROUND 25 MPH BECOMING AROUND 15 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......8900 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....35-44 NEAR 5000 FEET.
32-39 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........49-59% NEAR 5000 FEET.
58-68% NEAR 8000 FEET.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......NORTH AROUND 15 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (65-75% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....60-66 NEAR 5000 FEET.
46-56 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........21-28% NEAR 5000 FEET.
33-43% NEAR 8000 FEET.
24 HR TREND......9% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......8400 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......820.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER
70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID 80S
IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ495-190030-
COLOR COUNTRY WEST DESERT-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....52-58 NEAR 5000 FEET.
42-50 NEAR 7000 FEET.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........33-43%.
24 HR TREND......15% WETTER.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH.
12K FT MSL WINDS....NORTH AROUND 45 MPH BECOMING AROUND 30 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......8300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER). AREAS OF
FROST AFTER 2400.
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....28-38.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........56-66%.
24 HR TREND......26% DRIER NEAR 5000 FEET.
37% DRIER NEAR 7000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH 15-20 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER). AREAS OF FROST
UNTIL 1200.
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....59-65 NEAR 5000 FEET.
50-57 NEAR 7000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........20-30%.
24 HR TREND......11% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHEAST AROUND 20 MPH BECOMING AROUND 10 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......10400 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 30S IN THE VALLEYS AND
IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS AROUND 40 IN THE VALLEYS AND IN THE
MID 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS
AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS
AND IN THE MID 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND IN
THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN THE
VALLEYS AND IN THE MID 70S IN THE MOUNTAINS.
=
UTZ496-190030-
COLOR COUNTRY MOUNTAINS-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................10%.
MAX TEMPERATURE.....50-60 NEAR 6000 FEET.
39-48 NEAR 8000 FEET.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........32-42% NEAR 6000 FEET.
38-48% NEAR 8000 FEET.
24 HR TREND......22% WETTER.
20-FOOT WINDS.......NORTHWEST AROUND 25 MPH WITH GUSTS TO AROUND 45
MPH BECOMING NORTH AROUND 15 MPH WITH GUSTS TO
AROUND 30 MPH IN THE AFTERNOON.
12K FT MSL WINDS....NORTH AROUND 40 MPH BECOMING AROUND 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......7300 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....27-37.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........64-74%.
24 HR TREND......17% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN MOSTLY CLOUDY (70-80% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....56-66 NEAR 6000 FEET.
48-56 NEAR 8000 FEET.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........23-33%.
24 HR TREND......9% DRIER NEAR 6000 FEET.
14% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......9800 FT AGL (70-80TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S IN THE VALLEYS
AND IN THE LOWER 30S IN THE MOUNTAINS. HIGHS IN THE MID 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND
AROUND 40 IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS
AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN
THE VALLEYS AND AROUND 70 IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS AROUND 50 IN THE VALLEYS AND IN THE
MID 40S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS AND IN
THE LOWER 70S IN THE MOUNTAINS.
=
UTZ497-190030-
MOJAVE DESERT-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....68-74 NEAR 3000 FEET.
52-59 NEAR 6000 FEET.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........16-22% NEAR 3000 FEET.
22-30% NEAR 6000 FEET.
24 HR TREND......9% WETTER.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 35
MPH.
12K FT MSL WINDS....NORTH AROUND 30 MPH BECOMING AROUND 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......9500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....46-54 NEAR 3000 FEET.
37-46 NEAR 6000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........31-41% NEAR 3000 FEET.
35-45% NEAR 6000 FEET.
24 HR TREND......17% DRIER NEAR 3000 FEET.
35% DRIER NEAR 6000 FEET.
20-FOOT WINDS.......NORTH AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH
IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY
5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....74-80 NEAR 3000 FEET.
58-66 NEAR 6000 FEET.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........10-14% NEAR 3000 FEET.
14-21% NEAR 6000 FEET.
24 HR TREND......8% 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.......11500 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND IN
THE MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. NORTHEAST WINDS
AROUND 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS
AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN
THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS AROUND 60 IN THE VALLEYS AND IN THE
MID 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS
AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS
AND IN THE MID 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS AND
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE
VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.
=
UTZ498-190030-
GRAND STAIRCASE-
453 AM MDT MON MAY 18 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER) UNTIL 1200,
THEN PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................10%.
MAX TEMPERATURE.....61-71 NEAR 4000 FEET.
53-62 NEAR 6000 FEET.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........20-30%.
24 HR TREND......13% WETTER.
20-FOOT WINDS.......NORTHWEST 15-20 MPH. GUSTS UP TO 40 MPH IN THE
MORNING.
12K FT MSL WINDS....WEST AROUND 30 MPH BECOMING NORTHWEST AROUND 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......9500 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....41-51 NEAR 4000 FEET.
31-41 NEAR 6000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........45-55% NEAR 4000 FEET.
49-59% NEAR 6000 FEET.
24 HR TREND......1% DRIER NEAR 4000 FEET.
8% DRIER NEAR 6000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....65-74 NEAR 4000 FEET.
59-69 NEAR 6000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........14-24%.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......9900 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE UPPER 30S 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.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 50 IN THE VALLEYS AND IN
THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN THE
VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE
VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS AROUND 90 IN THE VALLEYS AND IN
THE LOWER 80S IN THE MOUNTAINS.
=
.8-14 DAY OUTLOOK FOR MONDAY MAY 25 TO SUNDAY MAY 31
TEMPERATURE... ABOVE NORMAL
PRECIPITATION... ABOVE NORMAL
=
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