


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Salt Lake City, UT
Issued by NWS Salt Lake City, UT
749 FNUS55 KSLC 160839 FWFSLC Fire Weather Planning Forecast for Utah National Weather Service Salt Lake City UT 239 AM MDT Sat Aug 16 2025 ...THUNDERSTORM THREAT CONTINUES SATURDAY...DRIER SUNDAY AND MONDAY... .BROADCAST DISCUSSION...Thunderstorms will develop Saturday, with the highest coverage across the higher terrain. Drier air will build into the region Sunday into Monday...with humidities gradually increasing through the week. The next chance for thunderstorms looks to be Wednesday into Thursday. .DISCUSSION...Another round of thunderstorms is expected Saturday afternoon and evening. Conditions will be less conducive to widespread thunderstorms as an area of weak high pressure is overhead during the afternoon. That said, expect the best coverage of convection across the higher terrain and adjacent valleys. As the broader area of high pressure moves into the region Sunday...expect falling humidities and worsening overnight recoveries Sunday into Monday. By Tuesday, mid-level moisture will begin to increase, though this looks to only slowly increase humidities rather than providing any precipitation. By Wednesday afternoon, expect an increased threat of thunderstorms across southern Utah, spreading across much of the state by Thursday. There is some potential for a stronger monsoon surge Friday into the next week. ***Thunderstorms imply strong, gusty and erratic winds*** ***All winds are 20 foot, 10-minute averages*** UTZ478-170015- Salt Lake Desert- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly sunny (45-55% 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.....85-92 near 5000 feet. 72-78 near 8000 feet. 24 hr trend......1 degree cooler. Min humidity........10-20%. 24 hr trend......1% wetter. 20-foot winds.......South around 15 mph in the morning becoming upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......15200 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Partly cloudy (45-55% cloud cover). South of I-80, isolated showers and thunderstorms until 2400. Chance lightning....10%. CWR.................0%. Min temperature.....58-68 near 5000 feet. 54-63 near 8000 feet. 24 hr trend......Unchanged. Max humidity........39-49%. 24 hr trend......4% drier. 20-foot winds.......Downslope/downvalley 5-10 mph becoming south around 15 mph after midnight. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........North of I-80, partly sunny (45-55% cloud cover), scattered rain showers and isolated thunderstorms after 1200. South of I-80, partly cloudy (30-40% cloud cover). Chance lightning....0% increasing to 20% in the afternoon. CWR.................0%. Max temperature.....84-90 near 5000 feet. 70-76 near 8000 feet. 24 hr trend......1 degree cooler. Min humidity........10-18% near 5000 feet. 15-23% near 8000 feet. 24 hr trend......2% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......14200 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the lower 60s. Highs around 90 in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the lower 90s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the mid 60s. Highs in the mid 90s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 60s. Highs in the mid 90s in the valleys and in the upper 70s in the mountains. .FRIDAY...Partly cloudy. Scattered rain showers and isolated thunderstorms. Lows in the upper 60s. Highs in the mid 90s in the valleys and in the upper 70s in the mountains. = $$ UTZ479-170015- Wasatch Mountains- 239 AM MDT Sat Aug 16 2025 .TODAY... 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 40% in the afternoon. CWR.................10% north of I-80 and 30% south of I-80. Max temperature.....84-92 near 5000 feet. 71-81 near 8000 feet. 24 hr trend......Unchanged. Min humidity........17-23% near 5000 feet. 26-36% near 8000 feet. 24 hr trend......2% wetter. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. Mixing height.......12800 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (50-60% cloud cover) until 2400, then partly cloudy (40-50% cloud cover). Isolated showers and thunderstorms until 2400. Chance lightning....20% decreasing to 10% after midnight. CWR.................0% north of I-80 and 10% south of I-80. Min temperature.....53-63 near 5000 feet. 48-58 near 8000 feet. 24 hr trend......1 degree cooler. Max humidity........58-68%. 24 hr trend......5% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. .SUNDAY... Sky/weather.........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.....84-92 near 5000 feet. 71-80 near 8000 feet. 24 hr trend......Unchanged. Min humidity........13-21% near 5000 feet. 16-25% near 8000 feet. 24 hr trend......3% drier near 5000 feet. 8% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12500 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. 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...Clear. Lows in the lower 50s. Highs in the lower 90s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Mostly clear. Scattered showers and thunderstorms. Lows in the upper 50s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s. Highs in the lower 90s in the valleys and around 80 in the mountains. = $$ UTZ480-170015- Uinta Mountains- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Mostly cloudy (70-80% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................40%. Max temperature.....77-83 near 7000 feet. 67-76 near 9000 feet. 24 hr trend......Unchanged. Min humidity........26-36%. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. Mixing height.......10900 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (55-65% cloud cover). Scattered rain showers and isolated thunderstorms until 2400. Chance lightning....20% decreasing to 0% after midnight. CWR.................10%. Min temperature.....51-57 near 7000 feet. 40-50 near 9000 feet. 24 hr trend......1 degree cooler. Max humidity........49-59% near 7000 feet. 65-75% near 9000 feet. 24 hr trend......4% drier near 7000 feet. 10% drier near 9000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200, then partly sunny (50-60% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 30% in the afternoon. CWR.................0%. Max temperature.....76-83 near 7000 feet. 67-76 near 9000 feet. 24 hr trend......Unchanged. Min humidity........19-29%. 24 hr trend......7% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......11300 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the mid 50s in the valleys and in the mid 40s in the mountains. Highs in the lower 80s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the mid 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. .WEDNESDAY...Mostly clear. Lows in the upper 50s in the valleys and around 50 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. .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 mid 80s in the valleys and in the upper 70s in the mountains. .FRIDAY...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. = $$ UTZ481-170015- Western Ashley National Forest- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Mostly cloudy (70-80% cloud cover). Isolated showers and thunderstorms until 1200, then numerous rain showers and scattered thunderstorms. Chance lightning....10% increasing to 50% in the afternoon. CWR.................50%. Max temperature.....76-83 near 7000 feet. 63-71 near 10000 feet. 24 hr trend......1 degree warmer. Min humidity........26-30% near 7000 feet. 31-41% near 10000 feet. 24 hr trend......2% wetter. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. Mixing height.......9600 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400, then partly cloudy (45-55% cloud cover). Scattered rain showers and isolated thunderstorms until 2400. Chance lightning....20% decreasing to 10% after midnight. CWR.................10%. Min temperature.....50-56 near 7000 feet. 38-48 near 10000 feet. 24 hr trend......1 degree cooler. Max humidity........47-53% near 7000 feet. 57-67% near 10000 feet. 24 hr trend......14% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Sunny (15-25% cloud cover) until 1200, then partly sunny (50-60% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 40% in the afternoon. CWR.................10%. Max temperature.....76-83 near 7000 feet. 63-71 near 10000 feet. 24 hr trend......1 degree warmer. Min humidity........17-21% near 7000 feet. 20-30% near 10000 feet. 24 hr trend......11% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......10400 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the mid 50s in the valleys and in the mid 40s in the mountains. Highs in the lower 80s in the valleys and in the upper 60s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the mid 50s in the valleys and in the upper 40s 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. .WEDNESDAY...Mostly clear. Lows in the upper 50s in the valleys and around 50 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. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s 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. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows around 60 in the valleys and in the lower 50s in the mountains. Highs in the mid 80s in the valleys and around 70 in the mountains. = $$ UTZ482-170015- Western Uintah Basin- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly sunny (65-75% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................20%. Max temperature.....80-86 near 6000 feet. 72-78 near 8000 feet. 24 hr trend......2 degrees warmer. Min humidity........25-31% near 6000 feet. 28-37% near 8000 feet. 24 hr trend......2% wetter. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....West 15-20 mph. Mixing height.......11900 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... 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 10% after midnight. CWR.................10%. Min temperature.....49-59. 24 hr trend......1 degree cooler. Max humidity........53-63% near 6000 feet. 47-57% near 8000 feet. 24 hr trend......13% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 10-15 mph. .SUNDAY... Sky/weather.........Sunny (20-30% cloud cover) until 1200, then partly cloudy (35-45% cloud cover). Isolated showers and thunderstorms after 1200. Chance lightning....10% increasing to 20% in the afternoon. CWR.................0%. Max temperature.....81-87 near 6000 feet. 73-79 near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........15-21%. 24 hr trend......10% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12800 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the mid 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. Lows in the mid 50s. Highs around 90 in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows around 60. Highs around 90 in the valleys and in the lower 80s in the mountains. = $$ UTZ483-170015- Southern Ashley National Forest- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200, then mostly cloudy (65-75% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................30%. Max temperature.....78-84 near 7000 feet. 67-73 near 9000 feet. 24 hr trend......2 degrees warmer. Min humidity........26-30% near 7000 feet. 33-43% near 9000 feet. 24 hr trend......1% wetter near 7000 feet. 6% wetter near 9000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....West 15-20 mph. Mixing height.......10600 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .TONIGHT... 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.....53-61 near 7000 feet. 51-57 near 9000 feet. 24 hr trend......Unchanged. Max humidity........42-48% near 7000 feet. 47-57% near 9000 feet. 24 hr trend......15% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Sunny (20-30% 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.....79-85 near 7000 feet. 68-74 near 9000 feet. 24 hr trend......1 degree warmer. Min humidity........17-21% near 7000 feet. 20-30% near 9000 feet. 24 hr trend......9% drier near 7000 feet. 14% drier near 9000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 10 mph. Mixing height.......11700 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the mid 50s. 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 upper 50s. Highs in the upper 80s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. = $$ UTZ484-170015- Tavaputs Plateau- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly sunny (55-65% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................10%. Max temperature.....82-89 near 6000 feet. 70-76 near 8000 feet. 24 hr trend......3 degrees warmer. Min humidity........21-31% near 6000 feet. 29-39% near 8000 feet. 24 hr trend......1% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....West around 15 mph. Mixing height.......11600 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (50-60% cloud cover) until 2400, then partly cloudy (25-35% cloud cover). Scattered rain showers and isolated thunderstorms until 2400. Chance lightning....30% decreasing to 10% after midnight. CWR.................10%. Min temperature.....55-64 near 6000 feet. 51-59 near 8000 feet. 24 hr trend......Unchanged. Max humidity........44-54% near 6000 feet. 49-59% near 8000 feet. 24 hr trend......12% drier near 6000 feet. 17% drier near 8000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Partly cloudy (20-30% cloud cover) until 1200, then sunny (20-30% cloud cover). Chance lightning....0% increasing to 10% in the afternoon. CWR.................0%. Max temperature.....84-90 near 6000 feet. 72-78 near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........13-19% near 6000 feet. 18-27% near 8000 feet. 24 hr trend......9% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12000 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the lower 60s in the valleys and in the mid 50s in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. 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 lower 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the mid 60s in the valleys and around 60 in the mountains. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 60s in the valleys and in the lower 60s in the mountains. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 60s in the valleys and in the lower 60s in the mountains. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. = $$ UTZ488-170015- Manti National Forest- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200, then mostly cloudy (75-85% cloud cover). Isolated showers and thunderstorms until 1200, then numerous rain showers and scattered thunderstorms. Chance lightning....10% increasing to 50% in the afternoon. CWR.................40%. Max temperature.....74-84 near 6500 feet. 65-75 near 8500 feet. 24 hr trend......Unchanged. Min humidity........27-37% near 6500 feet. 33-43% near 8500 feet. 24 hr trend......7% wetter. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 10-15 mph. Mixing height.......8800 ft AGL. Climatology......50-60th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400, then mostly clear (10-20% cloud cover). Scattered rain showers and isolated thunderstorms until 2400. Chance lightning....20% decreasing to 0% after midnight. CWR.................10%. Min temperature.....50-60 near 6500 feet. 44-54 near 8500 feet. 24 hr trend......1 degree cooler. Max humidity........46-56% near 6500 feet. 57-67% near 8500 feet. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 10-15 mph. .SUNDAY... Sky/weather.........Sunny (10-20% cloud cover) until 1200, then partly cloudy (35-45% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....77-87 near 6500 feet. 67-77 near 8500 feet. 24 hr trend......3 degrees warmer. Min humidity........14-23% near 6500 feet. 18-28% near 8500 feet. 24 hr trend......16% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 10-15 mph. Mixing height.......10600 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the mid 50s in the valleys and around 50 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. .TUESDAY...Mostly clear. Lows in the upper 50s in the valleys and in the lower 50s in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...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 upper 70s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s in the valleys and in the upper 50s in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 60s in the valleys and in the upper 50s in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. = $$ UTZ489-170015- San Rafael Swell- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then mostly cloudy (70-80% cloud cover). Scattered showers and thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................10%. Max temperature.....86-92 near 5000 feet. 76-82 near 7000 feet. 24 hr trend......3 degrees warmer. Min humidity........17-23% near 5000 feet. 22-32% near 7000 feet. 24 hr trend......Unchanged. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 10 mph. Mixing height.......11600 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... 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....30% decreasing to 10% after midnight. CWR.................0%. Min temperature.....55-65. 24 hr trend......Unchanged. Max humidity........46-56%. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Sunny (20-30% cloud cover) until 1200, then partly cloudy (25-35% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....88-94 near 5000 feet. 78-84 near 7000 feet. 24 hr trend......3 degrees warmer. Min humidity........11-15% near 5000 feet. 14-20% near 7000 feet. 24 hr trend......7% drier near 5000 feet. 12% drier near 7000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12100 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the lower 60s. Highs in the mid 90s in the valleys and in the mid 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Isolated showers and thunderstorms. Lows in the mid 60s. Highs in the upper 90s in the valleys and in the upper 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 60s. Highs in the upper 90s in the valleys and in the upper 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 60s. Highs in the upper 90s in the valleys and in the upper 80s in the mountains. = $$ UTZ492-170015- Central Utah West Desert- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (35-45% 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.....83-91 near 5000 feet. 69-76 near 8000 feet. 24 hr trend......3 degrees cooler. Min humidity........15-25% near 5000 feet. 25-35% near 8000 feet. 24 hr trend......5% wetter. 20-foot winds.......South around 15 mph. 12K ft MSL winds....Southwest 15-20 mph. Mixing height.......12700 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .TONIGHT... 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.....54-64 near 5000 feet. 49-59 near 8000 feet. 24 hr trend......1 degree cooler. Max humidity........48-58%. 24 hr trend......9% drier. 20-foot winds.......South around 15 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. .SUNDAY... Sky/weather.........Sunny (10-20% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....86-92 near 5000 feet. 71-77 near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........7-15% near 5000 feet. 13-23% near 8000 feet. 24 hr trend......6% drier near 5000 feet. 12% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12700 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Clear. Lows in the upper 50s in the valleys and in the mid 50s in the mountains. Highs in the lower 90s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows around 60. Highs in the mid 90s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the mid 60s in the valleys and around 60 in the mountains. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered rain showers and isolated thunderstorms. Lows in the mid 60s in the valleys and in the lower 60s in the mountains. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 60s in the valleys and in the lower 60s in the mountains. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. = $$ UTZ493-170015- Central Utah Mountains- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (35-45% cloud cover) until 1200, then mostly cloudy (75-85% cloud cover). Isolated showers and thunderstorms until 1200, then numerous rain showers and scattered thunderstorms. Chance lightning....20% increasing to 50% in the afternoon. CWR.................30%. Max temperature.....81-87 near 5000 feet. 69-76 near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........28-38%. 24 hr trend......10% wetter near 5000 feet. 4% wetter near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......9600 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (50-60% cloud cover) until 2400, then mostly clear (10-20% cloud cover). Scattered rain showers and isolated thunderstorms until 2400. Chance lightning....20% decreasing to 0% after midnight. CWR.................0%. Min temperature.....46-56. 24 hr trend......1 degree cooler. Max humidity........61-71%. 24 hr trend......13% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. .SUNDAY... Sky/weather.........Sunny (5-15% cloud cover) until 1200, then partly cloudy (25-35% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....85-91 near 5000 feet. 73-79 near 8000 feet. 24 hr trend......4 degrees warmer. Min humidity........13-23%. 24 hr trend......15% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......11900 ft AGL. Climatology......80-90th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the lower 50s. Highs around 90 in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. = $$ UTZ494-170015- Henry Mountains- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200, then 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.....85-91 near 5000 feet. 70-80 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........17-23% near 5000 feet. 24-33% near 8000 feet. 24 hr trend......4% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest 10-15 mph. Mixing height.......11800 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... 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.....58-68 near 5000 feet. 56-62 near 8000 feet. 24 hr trend......Unchanged. Max humidity........36-46%. 24 hr trend......12% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Sunny (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....88-94 near 5000 feet. 72-82 near 8000 feet. 24 hr trend......3 degrees warmer. Min humidity........10-14% near 5000 feet. 15-21% near 8000 feet. 24 hr trend......8% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......12200 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Mostly clear. Lows in the lower 60s. Highs in the lower 90s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows in the mid 60s. Highs in the mid 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Isolated showers and thunderstorms. Lows in the upper 60s. Highs in the upper 90s in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows around 70 in the valleys and in the mid 60s in the mountains. Highs in the upper 90s in the valleys and in the lower 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows around 70 in the valleys and in the mid 60s in the mountains. Highs in the upper 90s in the valleys and in the lower 80s in the mountains. = $$ UTZ495-170015- Color Country West Desert- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then partly sunny (60-70% cloud cover). Isolated rain showers until 1200, then scattered showers and thunderstorms. Chance lightning....10% increasing to 40% in the afternoon. CWR.................10%. Max temperature.....83-89 near 5000 feet. 75-81 near 7000 feet. 24 hr trend......3 degrees cooler. Min humidity........16-26%. 24 hr trend......3% wetter. 20-foot winds.......Southwest around 15 mph. 12K ft MSL winds....Southwest 20-25 mph. Mixing height.......11500 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... 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.....50-60. 24 hr trend......1 degree cooler. Max humidity........48-58% near 5000 feet. 39-49% near 7000 feet. 24 hr trend......16% drier. 20-foot winds.......Southwest around 15 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 20 mph. .SUNDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....85-92 near 5000 feet. 77-83 near 7000 feet. 24 hr trend......2 degrees warmer. Min humidity........9-17%. 24 hr trend......7% drier. 20-foot winds.......Upslope/upvalley 5-10 mph becoming southwest around 15 mph in the afternoon. 12K ft MSL winds....South around 20 mph. Mixing height.......10900 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Clear. Lows around 50 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. South winds around 15 mph. .TUESDAY...Mostly clear. Lows in the lower 50s in the valleys and around 60 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...Mostly clear. Isolated showers and thunderstorms. Lows in the mid 50s in the valleys and in the lower 60s 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. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s in the valleys and in the mid 60s in the mountains. Highs in the mid 90s in the valleys and in the upper 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the upper 50s in the valleys and in the mid 60s in the mountains. Highs in the mid 90s in the valleys and in the upper 80s in the mountains. = $$ UTZ496-170015- Color Country Mountains- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly sunny (60-70% cloud cover). Scattered rain showers and isolated thunderstorms until 1200, then numerous rain showers and scattered thunderstorms. Chance lightning....20% increasing to 50% in the afternoon. CWR.................20%. Max temperature.....78-86 near 6000 feet. 68-76 near 8000 feet. 24 hr trend......2 degrees warmer. Min humidity........23-33%. 24 hr trend......3% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 20 mph. Mixing height.......10400 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly cloudy (45-55% cloud cover) until 2400, then mostly clear (0-10% 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......Unchanged. Max humidity........63-73% near 6000 feet. 55-65% near 8000 feet. 24 hr trend......17% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 20 mph. .SUNDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....80-89 near 6000 feet. 71-79 near 8000 feet. 24 hr trend......3 degrees warmer. Min humidity........12-22%. 24 hr trend......11% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph in the afternoon. 12K ft MSL winds....Southwest 15-20 mph. Mixing height.......10400 ft AGL. Climatology......70-80th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Clear. Lows in the upper 50s in the valleys and around 50 in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows around 60 in the valleys and in the mid 50s in the mountains. Highs around 90 in the valleys and in the lower 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Scattered showers and thunderstorms. 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 lower 80s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and 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 mid 80s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and 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 mid 80s in the mountains. = $$ UTZ497-170015- Mojave Desert- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........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.................10%. Max temperature.....90-96 near 3000 feet. 76-83 near 6000 feet. 24 hr trend......2 degrees cooler. Min humidity........17-21% near 3000 feet. 20-26% near 6000 feet. 24 hr trend......1% wetter near 3000 feet. 4% drier near 6000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....South around 25 mph. Mixing height.......11000 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly clear (5-15% cloud cover). Chance lightning....10%. CWR.................0%. Min temperature.....69-79 near 3000 feet. 59-69 near 6000 feet. 24 hr trend......Unchanged. Max humidity........31-41% near 3000 feet. 35-45% near 6000 feet. 24 hr trend......16% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest 15-20 mph. .SUNDAY... Sky/weather.........Sunny (0-10% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....92-99 near 3000 feet. 79-85 near 6000 feet. 24 hr trend......2 degrees warmer. Min humidity........10-16%. 24 hr trend......8% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....South around 20 mph. Mixing height.......10800 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...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. .TUESDAY...Mostly clear. Lows in the mid 70s in the valleys and in the upper 60s in the mountains. Highs around 101 in the valleys and in the upper 80s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Lows in the mid 70s in the valleys and around 70 in the mountains. Highs around 104 in the valleys and around 90 in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 70s in the valleys and in the lower 70s in the mountains. Highs around 106 in the valleys and in the lower 90s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows around 80 in the valleys and in the lower 70s in the mountains. Highs around 106 in the valleys and in the lower 90s in the mountains. = $$ UTZ498-170015- Grand Staircase- 239 AM MDT Sat Aug 16 2025 .TODAY... Sky/weather.........Partly sunny (60-70% cloud cover). Isolated thunderstorms until 1200. Scattered rain showers. Scattered thunderstorms after 1200. Chance lightning....10% increasing to 50% in the afternoon. CWR.................20%. Max temperature.....85-95 near 4000 feet. 81-87 near 6000 feet. 24 hr trend......8 degrees warmer. Min humidity........15-24% near 4000 feet. 21-27% near 6000 feet. 24 hr trend......7% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. Gusts up to 25 mph in the afternoon. 12K ft MSL winds....Southwest around 15 mph. Mixing height.......11800 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .TONIGHT... Sky/weather.........Mostly clear (20-30% cloud cover). Isolated showers and thunderstorms until 2400. Chance lightning....20% decreasing to 0% after midnight. CWR.................0%. Min temperature.....62-72 near 4000 feet. 53-63 near 6000 feet. 24 hr trend......Unchanged. Max humidity........34-44% near 4000 feet. 45-55% near 6000 feet. 24 hr trend......15% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 15 mph. .SUNDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....88-98 near 4000 feet. 83-89 near 6000 feet. 24 hr trend......3 degrees warmer. Min humidity........10-16%. 24 hr trend......8% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 20 mph. Mixing height.......11000 ft AGL. Climatology......60-70th Percentile. Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .MONDAY...Clear. Lows in the upper 60s in the valleys and in the upper 50s in the mountains. Highs in the upper 90s in the valleys and in the upper 80s in the mountains. Winds generally less than 15 mph. .TUESDAY...Mostly clear. Lows around 70 in the valleys and in the lower 60s in the mountains. Highs around 100 in the valleys and in the lower 90s in the mountains. Winds generally less than 15 mph. .WEDNESDAY...Mostly clear. Scattered showers and thunderstorms. Lows in the lower 70s in the valleys and in the lower 60s in the mountains. Highs around 101 in the valleys and in the lower 90s in the mountains. Winds generally less than 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 70s in the valleys and in the mid 60s in the mountains. Highs around 102 in the valleys and in the mid 90s in the mountains. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the lower 70s in the valleys and in the mid 60s in the mountains. Highs around 102 in the valleys and in the mid 90s in the mountains. = $$ .8-14 day outlook for Saturday August 23 to Friday August 29 Temperature... Above Normal Precipitation... Above Normal = $$