


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
485 FNUS55 KGJT 190856 FWFGJT Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 256 AM MDT Tue Aug 19 2025 .DISCUSSION...High pressure will dominate through the end of the week, bringing hot and dry conditions. Although a few stronger afternoon gusts are possible each day, the winds will be generally light, limiting critical fire weather concerns considerably. Moisture will begin to move in after Wednesday, with increasing chances of showers and thunderstorms over the higher terrain. The main concerns will be gusty winds and lightning, although chances of wetting rain will increase daily into the weekend. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... COZ200-200100- Little Snake Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....86-96 F near 6000 feet 77-87 F near 8000 feet. Min humidity........3-8%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......3000 ft AGL until 1100, then 15000 ft AGL. Transport Winds.....Northeast 5 mph until 1200, then west. Smoke dispersal.....Poor until 1200, then fair. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....56-66 F. Max humidity........26-36% near 6000 feet 19-29% near 8000 feet. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......11000 ft AGL until 2000, then 2000 ft AGL. Transport Winds.....East 5 mph. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....88-98 F near 6000 feet 78-88 F near 8000 feet. Min humidity........3-8%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....North 5 to 10 mph shifting to the southwest 5 mph in the afternoon. Mixing Height.......2000 ft AGL until 1000. 14000 ft AGL after 1200. Transport Winds.....South 5 mph until 1200, then southwest. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 54-64. Highs 89-99. Winds less than 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 55-65. Highs 87-97. Winds less than 15 mph. .SATURDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 54-64. Highs 86-96. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 54-64. Highs 81-91. .MONDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53-63. Highs 76-86. $$ COZ201-200100- Routt Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....75-85 F. Min humidity........7-12%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph shifting to the north 5 mph in the afternoon. Mixing Height.......2500 ft AGL until 1000, then 13500 ft AGL. Transport Winds.....Southeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Chc of lightning....0 percent. Min temperature.....51-61 F. Max humidity........45-55%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......12000 ft AGL until 1900. 1500 ft AGL after 2000. Transport Winds.....Northeast 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....78-88 F. Min humidity........8-13%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 13500 ft AGL. Transport Winds.....South 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 51-61. Highs 80-90. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 77-87. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 75-85. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 48-58. Highs 69-79. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 46-56. Highs 65-75. $$ COZ202-200100- White River Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....86-96 F near 6000 feet 76-86 F near 8000 feet. Min humidity........4-9%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......2500 ft AGL until 1100, then 14000 ft AGL. Transport Winds.....East 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 1200, then fair. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....54-64 F. Max humidity........25-35%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......13000 ft AGL until 1900. 1000 ft AGL after 2000. Transport Winds.....North 5 mph until 2400, then southeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....85-95 F near 6000 feet 78-88 F near 8000 feet. Min humidity........4-9%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph shifting to the southeast 5 mph in the afternoon. Mixing Height.......2000 ft AGL until 1000. 13500 ft AGL after 1200. Transport Winds.....South 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1500. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 54-64. Highs 90-100. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 55-65. Highs 88-98. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 55-65. Highs 86-96. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 55-65. Highs 81-91. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 52-62. Highs 77-87. $$ COZ203-200100- Lower Colorado River- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....88-98 F near 6000 feet 78-88 F near 8000 feet. Min humidity........3-8%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......3500 ft AGL until 1100, then 14500 ft AGL. Transport Winds.....East 5 mph until 1200, then north. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....59-69 F. Max humidity........27-37%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....East 5 to 10 mph shifting to the west after midnight. Mixing Height.......13500 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....North 5 mph until 2400, then east. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....88-98 F near 6000 feet 80-90 F near 8000 feet. Min humidity........7-12%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 20 mph. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......3500 ft AGL until 1100, then 13000 ft AGL. Transport Winds.....Southeast 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1500. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 60-70. Highs 91-101. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 61-71. Highs 90-100. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 60-70. Highs 86-96. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59-69. Highs 81-91. .MONDAY...Numerous showers and scattered thunderstorms. Lows 57-67. Highs 77-87. $$ COZ205-200100- Colorado River Headwaters- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....79-89 F. Min humidity........7-12%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 13500 ft AGL. Transport Winds.....South 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Chc of lightning....0 percent. Min temperature.....51-61 F. Max humidity........51-61%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......12000 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....Northeast 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (20-30%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....81-91 F. Min humidity........9-14%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 12500 ft AGL. Transport Winds.....South 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 50-60. Highs 81-91. Winds less than 15 mph. .FRIDAY...Partly cloudy. Numerous showers and scattered thunderstorms. Lows 51-61. Highs 79-89. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 76-86. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous thunderstorms and scattered showers. Lows 48-58. Highs 70-80. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 47-57. Highs 66-76. $$ COZ290-200100- Paradox Valley Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....87-97 F near 6000 feet 75-85 F near 8000 feet. Min humidity........3-8%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph shifting to the north in the afternoon. Mixing Height.......2000 ft AGL until 1000. 14500 ft AGL after 1100. Transport Winds.....Southeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 1200, then good. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....56-66 F near 6000 feet 52-62 F near 8000 feet. Max humidity........32-42% near 6000 feet 53-63% near 8000 feet. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....South 5 mph shifting to the west 5 to 10 mph after midnight. Mixing Height.......14000 ft AGL until 1900. 1500 ft AGL after 2000. Transport Winds.....North 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Fair until 2100, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (40-50%). Near 6000 feet, isolated showers and thunderstorms after 1200. Near 8000 feet, scattered showers and thunderstorms after 1200. Chc of lightning....20 percent. Max temperature.....87-97 F near 6000 feet 75-85 F near 8000 feet. Min humidity........9-14%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 13000 ft AGL. Transport Winds.....South 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Fair after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Scattered showers and thunderstorms. Lows 60-70. Highs 91-101. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 62-72. Highs 90-100. Winds less than 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 61-71. Highs 87-97. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous thunderstorms and scattered showers. Lows 60-70. Highs 81-91. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 58-68. Highs 79-89. $$ COZ291-200100- Northern San Juan Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....75-85 F. Min humidity........7-12%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......2000 ft AGL until 0900. 14000 ft AGL after 1000. Transport Winds.....South 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Chc of lightning....0 percent. Min temperature.....51-61 F. Max humidity........54-64%. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 20 mph after midnight. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......13000 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....Northeast 5 mph until 2400, then south 10 to 15 mph. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (50-60%). Scattered showers and thunderstorms after 1200. Chc of lightning....30 percent. Max temperature.....75-85 F. Min humidity........12-22%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2000 ft AGL until 0900, then 12000 ft AGL. Transport Winds.....Southwest 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 81-91. Winds less than 15 mph. .FRIDAY...Partly cloudy. Numerous showers and scattered thunderstorms. Lows 52-62. Highs 80-90. Winds less than 15 mph. .SATURDAY...Mostly cloudy. Showers with numerous thunderstorms. Lows 50-60. Highs 75-85. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous thunderstorms and scattered showers. Lows 48-58. Highs 71-81. .MONDAY...Mostly cloudy. Showers with numerous thunderstorms. Lows 47-57. Highs 68-78. $$ COZ292-200100- North Fork Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....88-98 F near 6000 feet 79-89 F near 8000 feet. Min humidity........4-9%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000. 14500 ft AGL after 1200. Transport Winds.....Southeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 1200. Good after 1500. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....54-64 F near 6000 feet 52-62 F near 8000 feet. Max humidity........38-48% near 6000 feet 44-54% near 8000 feet. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 20 mph. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......12000 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....Northwest 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Near 6000 feet, isolated showers and thunderstorms after 1200. Near 8000 feet, scattered showers and isolated thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....88-98 F near 6000 feet 78-88 F near 8000 feet. Min humidity........9-14%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 12500 ft AGL. Transport Winds.....Southeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 1200. Good after 1500. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Scattered showers and isolated thunderstorms near 6000 feet and scattered showers and thunderstorms near 8000 feet. Lows 58-68. Highs 91-101. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 60-70. Highs 90-100. Winds less than 15 mph. .SATURDAY...Partly cloudy near 6000 feet and mostly cloudy near 8000 feet. Scattered showers and thunderstorms. Lows 58-68. Highs 87-97. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57-67. Highs 81-91. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 6000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 55-65. Highs 78-88. $$ COZ293-200100- Gunnison Basin Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (10-20%). Isolated showers. Isolated thunderstorms after 1200. Chc of lightning....0 percent. Max temperature.....81-91 F. Min humidity........8-13%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000. 14000 ft AGL after 1100. Transport Winds.....East 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Isolated showers until 2400. Chc of lightning....0 percent. Min temperature.....52-62 F. Max humidity........57-72%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 mph. Mixing Height.......12500 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....East 5 to 10 mph. Smoke dispersal.....Fair until 2100, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny (20-30%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....80-90 F. Min humidity........12-17%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 12500 ft AGL. Transport Winds.....East 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 48-58. Highs 82-92. Winds less than 15 mph. .FRIDAY...Partly cloudy. Numerous showers and scattered thunderstorms. Lows 50-60. Highs 80-90. Winds less than 15 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 48-58. Highs 76-86. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 48-58. Highs 71-81. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 46-56. Highs 68-78. $$ COZ207-200100- Southwest Colorado Lower Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....88-98 F. Min humidity........7-12%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....Southeast 5 to 10 mph shifting to the north in the afternoon. Mixing Height.......2000 ft AGL until 1000. 15000 ft AGL after 1200. Transport Winds.....East 5 to 10 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (20-30%). Isolated showers and thunderstorms until 2400. Chc of lightning....10 percent. Min temperature.....59-69 F. Max humidity........51-61%. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 25 mph after midnight. CWR.................0 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......11500 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....West 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Fair until 2100, then poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (30-40%). Scattered showers and thunderstorms after 1200. Chc of lightning....20 percent. Max temperature.....88-98 F. Min humidity........11-21%. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 20 mph. CWR.................10 percent. 15K Ft MSL Winds....Northeast 5 to 10 mph. Mixing Height.......3000 ft AGL until 1000, then 12500 ft AGL. Transport Winds.....Southeast 5 to 10 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Good after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Scattered thunderstorms and isolated showers. Lows 58-68. Highs 92-102. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58-68. Highs 91-101. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58-68. Highs 87-97. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 56-66. Highs 82-92. .MONDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 54-64. Highs 81-91. $$ COZ294-200100- Southwest Colorado Upper West Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (20-30%). Isolated showers and thunderstorms after 1200. Chc of lightning....0 percent. Max temperature.....78-88 F. Min humidity........8-13%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. 15K Ft MSL Winds....West 5 mph. Mixing Height.......1000 ft AGL until 0900. 13500 ft AGL after 1000. Transport Winds.....Southeast 5 mph until 1200, then northwest. Smoke dispersal.....Poor until 0900. Good after 1200. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Isolated showers until 2400. Chc of lightning....0 percent. Min temperature.....55-65 F. Max humidity........61-76%. 20-foot winds.......Downslope/downvalley winds 3 to 6 mph. Localized gusts up to 25 mph. CWR.................0 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......12500 ft AGL until 1900. 1500 ft AGL after 2000. Transport Winds.....North 5 to 10 mph until 2400, then southeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (50-60%). Scattered showers and thunderstorms after 1200. Chc of lightning....30 percent. Max temperature.....77-87 F. Min humidity........16-26%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................30 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2500 ft AGL until 1000, then 10000 ft AGL. Transport Winds.....South 5 to 10 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Fair after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50-60. Highs 82-92. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51-61. Highs 81-91. Winds less than 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 76-86. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 47-57. Highs 72-82. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 46-56. Highs 70-80. $$ COZ295-200100- Southwest Colorado Upper East Forecast Area- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (30-40%). Isolated showers and thunderstorms. Chc of lightning....20 percent. Max temperature.....81-91 F. Min humidity........13-23%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................10 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......2000 ft AGL until 0900. 12000 ft AGL after 1100. Transport Winds.....Northeast 5 mph until 1200, then west. Smoke dispersal.....Poor until 0900. Fair after 1200. .TONIGHT... Sky/weather.........Partly cloudy (40-50%). Isolated showers and thunderstorms until 2400. Chc of lightning....20 percent. Min temperature.....50-60 F. Max humidity........65-80%. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................10 percent. 15K Ft MSL Winds....Northwest 5 to 10 mph. Mixing Height.......8500 ft AGL until 2000, then 2000 ft AGL. Transport Winds.....Southeast 5 to 10 mph until 2400, then northeast. Smoke dispersal.....Poor. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%) until 1200, then partly cloudy (50-60%). Scattered showers and thunderstorms after 1200. Chc of lightning....40 percent. Max temperature.....80-90 F. Min humidity........19-29%. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................20 percent. 15K Ft MSL Winds....North 5 to 10 mph. Mixing Height.......3500 ft AGL until 1000, then 8500 ft AGL. Transport Winds.....Northwest 5 mph. Smoke dispersal.....Poor until 0900. Fair after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49-59. Highs 82-92. Winds less than 15 mph. .FRIDAY...Partly cloudy. Numerous showers and thunderstorms. Lows 50-60. Highs 81-91. Winds less than 15 mph. .SATURDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows 48-58. Highs 76-86. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows 47-57. Highs 73-83. .MONDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows 46-56. Highs 71-81. $$ UTZ485-200100- Eastern Ashley National Forest- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....80-90 F near 7000 feet 70-80 F near 10000 feet. 24 hr trend......4 degrees warmer. Min humidity........6-11%. 24 hr trend......1% drier. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......2000 ft AGL until 1000. 14000 ft AGL after 1200. Transport Winds.....West 5 mph. Clearing Index......Less than 500 until 1100. 1000 after 1200. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....56-66 F near 7000 feet 44-54 F near 10000 feet. 24 hr trend......3 degrees warmer. Max humidity........20-30%. 24 hr trend......3% drier. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......10500 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....Southeast 5 mph. Clearing Index......800 until 1900. Less than 500 after 2000. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....83-93 F near 7000 feet 70-80 F near 10000 feet. 24 hr trend......2 degrees warmer. Min humidity........8-13%. 24 hr trend......1% wetter. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 20 mph in the afternoon. CWR.................0 percent. Mixing Height.......2000 ft AGL until 1000. 14000 ft AGL after 1200. Transport Winds.....Southwest 5 mph. Clearing Index......Less than 500 until 1100. 1050 after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 57-67. Highs 81-91. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms . Lows 55-65. Highs 78-88. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms . Lows 54-64. Highs 77-87. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 7000 feet and numerous showers and thunderstorms near 10000 feet. Lows 54-64. Highs 73-83. .MONDAY...Mostly cloudy. Scattered showers and thunderstorms near 7000 feet and showers and scattered thunderstorms near 10000 feet . Lows 51-61. Highs 69-79. $$ UTZ486-200100- Eastern Uinta Basin- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....86-96 F near 5000 feet 75-85 F near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........4-9%. 24 hr trend......2% drier. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......3000 ft AGL until 1100, then 14500 ft AGL. Transport Winds.....East 5 mph until 1200, then southwest. Clearing Index......Less than 500 until 1100. 1000 after 1200. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....58-68 F. 24 hr trend......Unchanged. Max humidity........13-23%. 24 hr trend......4% drier. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......13500 ft AGL until 1900. 2000 ft AGL after 2000. Transport Winds.....North 5 mph until 2400, then northeast. Clearing Index......800 until 1900. Less than 500 after 2000. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Chc of lightning....0 percent. Max temperature.....87-97 F near 5000 feet 76-86 F near 8000 feet. 24 hr trend......3 degrees warmer. Min humidity........5-10%. 24 hr trend......1% wetter. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......3000 ft AGL until 1100, then 14000 ft AGL. Transport Winds.....Southeast 5 mph until 1200, then southwest. Clearing Index......Less than 500 until 1100. 1050 after 1200. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms . Lows 62-72. Highs 88-98. Winds less than 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms . Lows 61-71. Highs 85-95. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 60-70. Highs 83-93. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms . Lows 60-70. Highs 79-89. .MONDAY...Mostly cloudy. Scattered showers and thunderstorms . Lows 57-67. Highs 74-84. $$ UTZ487-200100- Book Cliffs- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....87-97 F near 5000 feet 81-91 F near 8000 feet. 24 hr trend......2 degrees warmer. Min humidity........3-8%. 24 hr trend......Unchanged. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......1500 ft AGL until 1000. 14000 ft AGL after 1100. Transport Winds.....Southeast 5 mph until 1200, then northwest. Clearing Index......Less than 500 until 1100. 1000 after 1200. .TONIGHT... Sky/weather.........Clear (0-10%). Chc of lightning....0 percent. Min temperature.....60-70 F near 5000 feet 54-64 F near 8000 feet. 24 hr trend......Unchanged. Max humidity........16-26%. 24 hr trend......2% drier. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......11000 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....East 5 to 10 mph until 2400, then south. Clearing Index......950 until 1900. Less than 500 after 2000. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Near 8000 feet, isolated showers and thunderstorms after 1200. Chc of lightning....0 percent. Max temperature.....87-97 F near 5000 feet 80-90 F near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........6-11%. 24 hr trend......3% wetter. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......2000 ft AGL until 1000. 13000 ft AGL after 1200. Transport Winds.....Southwest 5 to 10 mph. Clearing Index......Less than 500 until 1100. 1050 after 1300. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms near 6000 feet and scattered showers and thunderstorms near 8000 feet . Lows 60-70. Highs 91-101. Winds less than 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms . Lows 60-70. Highs 88-98. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms . Lows 60-70. Highs 86-96. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 6000 feet and scattered showers and thunderstorms near 8000 feet. Lows 60-70. Highs 80-90. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 6000 feet and showers and scattered thunderstorms near 8000 feet. Lows 56-66. Highs 77-87. $$ UTZ490-200100- Colorado River Basin- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....94-104 F near 5000 feet 83-93 F near 7000 feet. 24 hr trend......3 degrees warmer. Min humidity........3-8%. 24 hr trend......1% drier. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......2500 ft AGL until 1100. 14000 ft AGL after 1200. Transport Winds.....East 5 mph until 1200, then north. Clearing Index......Less than 500 until 1200. 1000 after 1300. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Chc of lightning....0 percent. Min temperature.....63-73 F. 24 hr trend......3 degrees warmer. Max humidity........18-28%. 24 hr trend......3% wetter. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......12500 ft AGL until 1900. 1500 ft AGL after 2000. Transport Winds.....North 5 mph until 2400, then east. Clearing Index......750 until 1900. Less than 500 after 2000. .WEDNESDAY... Sky/weather.........Mostly sunny (10-20%). Isolated showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....94-104 F near 5000 feet 83-93 F near 7000 feet. 24 hr trend......Unchanged. Min humidity........7-12%. 24 hr trend......5% wetter. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......3000 ft AGL until 1100, then 12000 ft AGL. Transport Winds.....Southeast 5 to 10 mph until 1200, then southwest. Clearing Index......Less than 500 until 1400, then 900. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms near 5000 feet and scattered showers and isolated thunderstorms near 7000 feet. Lows 65-75. Highs 94-104. Winds less than 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms near 5000 feet and scattered showers and thunderstorms near 7000 feet . Lows 66-76. Highs 93-103. Winds less than 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 65-75. Highs 90-100. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms near 5000 feet and numerous showers and scattered thunderstorms near 7000 feet. Lows 64-74. Highs 85-95. .MONDAY...Mostly cloudy. Numerous showers and scattered thunderstorms near 5000 feet and numerous showers and scattered thunderstorms near 7000 feet. Lows 62-72. Highs 82-92. $$ UTZ491-200100- Southeast Utah- 256 AM MDT Tue Aug 19 2025 .TODAY... Sky/weather.........Sunny (0-10%). Chc of lightning....0 percent. Max temperature.....91-101 F near 5000 feet 79-89 F near 8000 feet. 24 hr trend......2 degrees warmer. Min humidity........6-11%. 24 hr trend......Unchanged. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......2500 ft AGL until 1100. 14500 ft AGL after 1200. Transport Winds.....East 5 mph. Clearing Index......Less than 500 until 1200. 1000 after 1400. .TONIGHT... Sky/weather.........Mostly clear (10-20%). Chc of lightning....0 percent. Min temperature.....62-72 F near 5000 feet 56-66 F near 8000 feet. 24 hr trend......1 degree warmer. Max humidity........37-47%. 24 hr trend......21% wetter. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......11500 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....North 5 mph until 2400, then southeast. Clearing Index......750 until 2000, then less than 500. .WEDNESDAY... Sky/weather.........Near 5000 feet, mostly sunny (10-20%), isolated showers and thunderstorms after 1200. Near 8000 feet, mostly sunny (10-20%) until 1200, then partly cloudy (30-40%), scattered showers and thunderstorms after 1200. Chc of lightning....10 percent. Max temperature.....91-101 F near 5000 feet 78-88 F near 8000 feet. 24 hr trend......1 degree warmer. Min humidity........12-17%. 24 hr trend......4% wetter. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 20 mph in the morning. CWR.................10 percent. Mixing Height.......2000 ft AGL until 1000, then 12000 ft AGL. Transport Winds.....Southeast 5 mph. Clearing Index......800. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly clear. Isolated showers and thunderstorms near 5000 feet and scattered showers and thunderstorms near 8000 feet . Lows 63-73. Highs 93-103. Winds less than 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms near 5000 feet and scattered showers and thunderstorms near 8000 feet . Lows 64-74. Highs 93-103. Winds less than 15 mph. .SATURDAY...Partly cloudy near 5000 feet and mostly cloudy near 8000 feet and scattered showers and thunderstorms . Lows 64-74. Highs 89-99. Winds less than 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms near 5000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 62-72. Highs 84-94. .MONDAY...Partly cloudy near 5000 feet and mostly cloudy near 8000 feet and scattered showers and thunderstorms near 5000 feet and numerous showers and scattered thunderstorms near 8000 feet. Lows 60-70. Highs 83-93. $$