Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
571
FNUS55 KGJT 191906
FWFGJT
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
106 PM MDT Tue Aug 19 2025
.DISCUSSION...Record temperatures are expected through the week.
Starting off pretty dry now, but moisture will gradually increase
each day. There will be enough for showers and storms starting
across the south and expanding northward each afternoon. For the
next couple of days limited rainfall is expected, but strong
outflow winds and lightning starts will be possible. The chances
for wetting rain looks to increase this weekend and early next
week. We could be looking at the potential for moderate and heavy
rates and therefore burn scar debris flows at some point.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
COZ200-201115-
Little Snake Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....56-66 F.
Max humidity........27-37% 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....Northwest 5 to 10 mph.
Mixing Height.......11000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southeast 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....West 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1100. 15000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then southwest.
Smoke dispersal.....Poor until 1200, then good.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
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....West 5 to 10 mph increasing to 10 to 15 mph
after midnight.
Mixing Height.......13500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....West 5 mph until 2400, then northwest.
Smoke dispersal.....Fair until 2100, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Near 8000 feet, isolated
showers after 1200.
Chc of lightning....0 percent.
Max temperature.....87-97 F near 6000 feet
76-86 F near 8000 feet.
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 10 to 15 mph.
Mixing Height.......2500 ft AGL until 1000. 15000 ft AGL after
1200.
Transport Winds.....Northwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
55-65. Highs 86-96. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 53-63. Highs 85-95. Winds less than 15 mph.
.SUNDAY...Mostly cloudy near 6000 feet and partly cloudy near
8000 feet and scattered showers and thunderstorms. Lows 54-64.
Highs 81-91. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 51-61. Highs 75-85.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 72-82.
$$
COZ201-201115-
Routt Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....51-61 F.
Max humidity........47-57%.
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.......12000 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 (20-30%).
Chc of lightning....0 percent.
Max temperature.....78-88 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....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.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (20-30%).
Chc of lightning....0 percent.
Min temperature.....53-63 F.
Max humidity........33-43%.
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.....North 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....78-88 F.
Min humidity........11-16%.
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 1000, then 13500 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...
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 51-61. Highs 77-87. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 74-84. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 48-58. Highs 70-80. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 46-56. Highs 64-74.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 45-55. Highs 62-72.
$$
COZ202-201115-
White River Forecast Area-
106 PM MDT Tue Aug 19 2025
.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.......12500 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.....87-97 F near 6000 feet
77-87 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.......1500 ft AGL until 1000. 14000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....57-67 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.....West 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....87-97 F near 6000 feet
78-88 F near 8000 feet.
Min humidity........7-12%.
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....West 5 to 10 mph.
Mixing Height.......2000 ft AGL until 1000. 15000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms near
6000 feet and scattered showers and thunderstorms near 8000 feet.
Lows 56-66. Highs 87-97. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 54-64. 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. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 6000 feet and scattered showers and
thunderstorms near 8000 feet. Lows 51-61. Highs 75-85.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 6000 feet and numerous showers and scattered
thunderstorms near 8000 feet. Lows 50-60. Highs 72-82.
$$
COZ203-201115-
Lower Colorado River-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....59-69 F.
Max humidity........29-39%.
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 southwest
after midnight.
Mixing Height.......11000 ft AGL until 2000, then 2000 ft AGL.
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....0 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.................0 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......3500 ft AGL until 1100. 14000 ft AGL after
1300.
Transport Winds.....Southeast 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1500.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....61-71 F.
Max humidity........26-36%.
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....North 5 to 10 mph shifting to the northwest
after midnight.
Mixing Height.......13000 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....West 5 mph until 2400, then east.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....89-99 F near 6000 feet
81-91 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....Northwest 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000. 14000 ft AGL after
1200.
Transport Winds.....Southeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1500.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 61-71. Highs 89-99. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 60-70. Highs 87-97. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 59-69. Highs 81-91. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 56-66. Highs 77-87.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 55-65. Highs 73-83.
$$
COZ205-201115-
Colorado River Headwaters-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....53-63 F.
Max humidity........53-63%.
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 shifting to the southwest
after midnight.
Mixing Height.......10500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northeast 5 to 10 mph until 2400, then
southeast.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). 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....Northwest 5 to 10 mph.
Mixing Height.......3000 ft AGL until 1000. 13500 ft AGL after
1100.
Transport Winds.....Southwest 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....54-64 F.
Max humidity........42-52%.
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.......12500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....Northwest 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....82-92 F.
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....Northwest 10 to 15 mph becoming north 5 to 10
mph in the afternoon.
Mixing Height.......3500 ft AGL until 1000, then 13500 ft AGL.
Transport Winds.....West 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Numerous showers and scattered
thunderstorms. Lows 51-61. Highs 79-89. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Numerous showers and scattered
thunderstorms. Lows 48-58. Highs 76-86. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Numerous thunderstorms and scattered
showers. Lows 48-58. Highs 71-81. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
46-56. Highs 66-76.
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms.
Lows 46-56. Highs 64-74.
$$
COZ290-201115-
Paradox Valley Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....57-67 F near 6000 feet
52-62 F near 8000 feet.
Max humidity........33-43% near 6000 feet
54-64% 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....Southeast 5 to 10 mph shifting to the west
after midnight.
Mixing Height.......12000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....North 5 to 10 mph until 2400, then southeast.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Near 6000 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....20 percent.
Max temperature.....87-97 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. 13000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Near 8000 feet, isolated
showers and thunderstorms until 2400.
Chc of lightning....0 percent.
Min temperature.....59-69 F near 6000 feet
54-64 F near 8000 feet.
Max humidity........32-42% near 6000 feet
46-56% 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....North 5 to 10 mph.
Mixing Height.......12000 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....Northwest 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (40-50%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....88-98 F near 6000 feet
79-89 F near 8000 feet.
Min humidity........10-15%.
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.......3000 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1500.
.FORECAST FOR DAY 3 THROUGH 7...
.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. Numerous showers and scattered
thunderstorms near 6000 feet and showers and scattered
thunderstorms near 8000 feet. Lows 60-70. Highs 86-96. Winds less
than 15 mph.
.SUNDAY...Mostly cloudy. Numerous thunderstorms and scattered
showers near 6000 feet and showers with numerous thunderstorms
near 8000 feet. Lows 59-69. Highs 81-91. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and thunderstorms near
6000 feet and showers with numerous thunderstorms near 8000 feet.
Lows 57-67. Highs 78-88.
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms near
6000 feet and showers with numerous thunderstorms near 8000 feet.
Lows 56-66. Highs 74-84.
$$
COZ291-201115-
Northern San Juan Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....51-61 F.
Max humidity........56-66%.
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.......12500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....Northeast 5 mph until 2400, then southeast 10
to 15 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (40-50%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....75-85 F.
Min humidity........11-21%.
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.....Southwest 5 to 10 mph until 1200, then
northwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....52-62 F.
Max humidity........46-56%.
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....North 5 to 10 mph.
Mixing Height.......11000 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....West 5 mph until 2400, then south.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then mostly
cloudy (60-70%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....40 percent.
Max temperature.....79-89 F.
Min humidity........11-21%.
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....Northeast 5 to 10 mph.
Mixing Height.......5500 ft AGL until 1100, then 12500 ft AGL.
Transport Winds.....Northwest 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.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 76-86. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Showers with numerous thunderstorms.
Lows 48-58. Highs 71-81. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Showers with numerous thunderstorms.
Lows 47-57. Highs 68-78.
.TUESDAY...Mostly cloudy. Showers with numerous thunderstorms.
Lows 45-55. Highs 65-75.
$$
COZ292-201115-
North Fork Forecast Area-
106 PM MDT Tue Aug 19 2025
.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........41-51% near 6000 feet
47-57% 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....Southeast 5 to 10 mph shifting to the west
after midnight.
Mixing Height.......10000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northwest 5 to 10 mph until 2400, then
southeast.
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
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.................0 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 1200. Good after 1500.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....56-66 F near 6000 feet
54-64 F near 8000 feet.
Max humidity........36-46%.
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....North 5 to 10 mph.
Mixing Height.......11500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....Northwest 5 to 10 mph until 2400, then
southeast.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Near 6000 feet, mostly sunny (20-30%), 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....20 percent.
Max temperature.....89-99 F near 6000 feet
80-90 F near 8000 feet.
Min humidity........10-15%.
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.......3000 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....Southeast 5 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.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 and scattered showers and thunderstorms near 6000 feet
and numerous showers and scattered thunderstorms near 8000 feet.
Lows 58-68. Highs 86-96. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 57-67. Highs 81-91. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 6000 feet and numerous showers and scattered
thunderstorms near 8000 feet. Lows 55-65. Highs 77-87.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 6000 feet and numerous showers and scattered
thunderstorms near 8000 feet. Lows 54-64. Highs 74-84.
$$
COZ293-201115-
Gunnison Basin Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%). Isolated showers until
2400.
Chc of lightning....0 percent.
Min temperature.....51-61 F.
Max humidity........58-73%.
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....Southwest 5 to 10 mph.
Mixing Height.......10500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....East 5 to 10 mph.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). 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....Northwest 5 to 10 mph.
Mixing Height.......3000 ft AGL until 1000. 12500 ft AGL after
1200.
Transport Winds.....Southeast 5 mph until 1200, then northwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%).
Chc of lightning....0 percent.
Min temperature.....53-63 F.
Max humidity........53-63%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......11500 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....East 5 mph.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....82-92 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 10 to 15 mph decreasing to 5 to 10 mph in
the afternoon.
Mixing Height.......3000 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....North 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered showers and 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. Numerous thunderstorms and scattered
showers. Lows 47-57. Highs 72-82. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
46-56. Highs 67-77.
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms.
Lows 45-55. Highs 65-75.
$$
COZ207-201115-
Southwest Colorado Lower Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....59-69 F.
Max humidity........52-62%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph.
CWR.................10 percent.
15K Ft MSL Winds....North 5 to 10 mph.
Mixing Height.......11500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Northwest 5 to 10 mph until 2400, then
southeast.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....88-98 F.
Min humidity........12-17%.
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.......2500 ft AGL until 1000. 13500 ft AGL after
1200.
Transport Winds.....Southeast 5 to 10 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....59-69 F.
Max humidity........47-57%.
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....North 5 to 10 mph.
Mixing Height.......12500 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....Southwest 5 to 10 mph until 2400, then
southeast.
Smoke dispersal.....Poor.
.THURSDAY...
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.....89-99 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....Northeast 5 to 10 mph.
Mixing Height.......2500 ft AGL until 1000. 11500 ft AGL after
1200.
Transport Winds.....East 5 to 10 mph until 1200, then north.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 58-68. Highs 90-100. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 57-67. Highs 87-97. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 55-65. Highs 82-92. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 54-64. Highs 79-89.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 53-63. Highs 76-86.
$$
COZ294-201115-
Southwest Colorado Upper West Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers until
2400.
Chc of lightning....0 percent.
Min temperature.....56-66 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.......11500 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.....76-86 F.
Min humidity........16-26%.
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.......2500 ft AGL until 1000, then 11000 ft AGL.
Transport Winds.....South 5 to 10 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....56-66 F.
Max humidity........57-67%.
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....North 10 to 15 mph.
Mixing Height.......10000 ft AGL until 1900. 1000 ft AGL after
2000.
Transport Winds.....West 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.THURSDAY...
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.....79-89 F.
Min humidity........13-23%.
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 10 to 15 mph.
Mixing Height.......2500 ft AGL until 1000. 10500 ft AGL after
1200.
Transport Winds.....North 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 51-61. Highs 80-90. Winds less than 15 mph.
.SATURDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms. Lows 49-59. Highs 76-86. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
47-57. Highs 71-81. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and thunderstorms. Lows
46-56. Highs 68-78.
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms.
Lows 45-55. Highs 65-75.
$$
COZ295-201115-
Southwest Colorado Upper East Forecast Area-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated thunderstorms
until 2400. Isolated showers.
Chc of lightning....20 percent.
Min temperature.....51-61 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.......9000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....East 5 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.....79-89 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.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....51-61 F.
Max humidity........62-77%.
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....North 10 to 15 mph.
Mixing Height.......6000 ft AGL until 1900, then 2500 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor.
.THURSDAY...
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.....81-91 F.
Min humidity........14-24%.
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....Northeast 15 to 20 mph decreasing to 10 to 15
mph in the afternoon.
Mixing Height.......3500 ft AGL until 1000, then 11500 ft AGL.
Transport Winds.....North 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Numerous showers and thunderstorms. Lows
49-59. Highs 80-90. Winds less than 15 mph.
.SATURDAY...Mostly cloudy. Showers with numerous thunderstorms.
Lows 48-58. Highs 76-86. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Showers with numerous thunderstorms.
Lows 46-56. Highs 72-82. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Showers and thunderstorms. Lows 46-56.
Highs 69-79.
.TUESDAY...Mostly cloudy. Numerous showers and thunderstorms.
Lows 45-55. Highs 67-77.
$$
UTZ485-201115-
Eastern Ashley National Forest-
106 PM MDT Tue Aug 19 2025
.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......1 degree warmer.
Max humidity........20-30%.
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.....Southwest 5 mph.
Clearing Index......850 until 1900. Less than 500 after 2000.
.WEDNESDAY...
Sky/weather.........Near 7000 feet, mostly sunny (20-30%). Near
10000 feet, sunny (0-10%) until 1200, then
partly cloudy (30-40%).
Chc of lightning....0 percent.
Max temperature.....83-93 F near 7000 feet
71-81 F near 10000 feet.
24 hr trend......2 degrees warmer.
Min humidity........7-12%.
24 hr trend......Unchanged.
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. 15000 ft AGL after
1100.
Transport Winds.....Southwest 5 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....59-69 F near 7000 feet
46-56 F near 10000 feet.
24 hr trend......5 degrees warmer.
Max humidity........28-38% near 7000 feet
34-44% near 10000 feet.
24 hr trend......7% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......13000 ft AGL until 1900. 2000 ft AGL after
2000.
Transport Winds.....West 5 to 10 mph.
Clearing Index......1050 until 1900. Less than 500 after 2000.
.THURSDAY...
Sky/weather.........Near 7000 feet, partly cloudy (40-50%),
isolated showers and thunderstorms after 1200.
near 10000 feet, partly cloudy (30-40%) until
1200, then mostly cloudy (60-70%), scattered
showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....79-89 F near 7000 feet
67-77 F near 10000 feet.
24 hr trend......3 degrees cooler.
Min humidity........14-24%.
24 hr trend......10% wetter.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................10 percent.
Mixing Height.......3000 ft AGL until 1000. 11000 ft AGL after
1200.
Transport Winds.....Northwest 5 mph until 1200, then west.
Clearing Index......Less than 500 until 1100. 950 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms .
Lows 56-66. Highs 78-88. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and thunderstorms .
Lows 53-63. Highs 77-87. Winds less than 15 mph.
.SUNDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 7000 feet and scattered showers and
thunderstorms near 10000 feet. Lows 53-63. Highs 74-84. Winds
less than 15 mph.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms near
7000 feet and showers with numerous thunderstorms near 10000 feet
. Lows 51-61. Highs 68-78.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms
near 7000 feet and numerous showers and scattered thunderstorms
near 10000 feet. Lows 49-59. Highs 65-75.
$$
UTZ486-201115-
Eastern Uinta Basin-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....58-68 F.
24 hr trend......3 degrees cooler.
Max humidity........14-24%.
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.......11000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northwest 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.......2500 ft AGL until 1100. 15000 ft AGL after
1200.
Transport Winds.....Southeast 5 mph until 1200, then southwest.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....61-71 F.
24 hr trend......3 degrees warmer.
Max humidity........20-30%.
24 hr trend......8% wetter.
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.....West 5 to 10 mph until 2400, then north.
Clearing Index......1050 until 1900. Less than 500 after 2000.
.THURSDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....86-96 F near 5000 feet
76-86 F near 8000 feet.
24 hr trend......3 degrees cooler.
Min humidity........11-16%.
24 hr trend......5% wetter.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
Mixing Height.......2500 ft AGL until 1000. 13500 ft AGL after
1200.
Transport Winds.....Northeast 5 mph until 1200, then west.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 61-71. Highs 84-94. Winds less than 15 mph.
.SATURDAY...Partly cloudy. Scattered showers and isolated
thunderstorms near 6000 feet and scattered showers and
thunderstorms near 8000 feet. Lows 60-70. Highs 83-93. 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 60-70. Highs 79-89. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms .
Lows 56-66. Highs 73-83.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms
near 6000 feet and numerous showers and scattered thunderstorms
near 8000 feet. Lows 54-64. Highs 71-81.
$$
UTZ487-201115-
Book Cliffs-
106 PM MDT Tue Aug 19 2025
.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......1% drier.
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.....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%).
Chc of lightning....0 percent.
Max temperature.....87-97 F near 5000 feet
81-91 F near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........5-10%.
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.......1500 ft AGL until 1000. 14000 ft AGL after
1100.
Transport Winds.....South 5 to 10 mph until 1200, then west.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....62-72 F.
24 hr trend......3 degrees warmer.
Max humidity........21-31%.
24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......13000 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 1900. Less than 500 after 2000.
.THURSDAY...
Sky/weather.........Near 5000 feet, mostly sunny (20-30%). Near
8000 feet, mostly sunny (10-20%) until 1200,
then partly cloudy (40-50%). Isolated showers
and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....87-97 F near 5000 feet
81-91 F near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........8-13%.
24 hr trend......3% wetter.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
Mixing Height.......2000 ft AGL until 1000. 13500 ft AGL after
1200.
Transport Winds.....West 5 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.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 59-69. 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. Winds
less than 15 mph.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms near
6000 feet and showers and scattered thunderstorms near 8000 feet
. Lows 56-66. Highs 76-86.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 6000 feet and showers and scattered
thunderstorms near 8000 feet. Lows 54-64. Highs 72-82.
$$
UTZ490-201115-
Colorado River Basin-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Clear (0-10%).
Chc of lightning....0 percent.
Min temperature.....62-72 F.
24 hr trend......2 degrees warmer.
Max humidity........19-29%.
24 hr trend......4% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......10000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....North 5 mph until 2400, then east.
Clearing Index......600 until 2000, then less than 500.
.WEDNESDAY...
Sky/weather.........Mostly sunny (10-20%). Near 5000 feet, isolated
showers and thunderstorms after 1200. Near 7000
feet, isolated showers 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........6-11%.
24 hr trend......4% wetter.
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. 13000 ft AGL after
1300.
Transport Winds.....Southeast 5 to 10 mph until 1200, then west.
Clearing Index......Less than 500 until 1300. 1000 after 1400.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....65-75 F.
24 hr trend......3 degrees warmer.
Max humidity........21-31%.
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.......11500 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....West 5 mph until 2400, then southeast.
Clearing Index......900 until 1900. Less than 500 after 2000.
.THURSDAY...
Sky/weather.........Near 5000 feet, mostly sunny (20-30%). Near
7000 feet, mostly sunny (10-20%) until 1200,
then partly cloudy (30-40%). Isolated showers
and thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....95-105 F near 5000 feet
84-94 F near 7000 feet.
24 hr trend......Unchanged.
Min humidity........9-14%.
24 hr trend......2% wetter.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
Mixing Height.......3500 ft AGL until 1100, then 12500 ft AGL.
Transport Winds.....Southeast 5 mph until 1200, then west.
Clearing Index......Less than 500 until 1400, then 850.
.FORECAST FOR DAY 3 THROUGH 7...
.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 65-75. Highs 84-94. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 5000 feet and numerous showers and scattered
thunderstorms near 7000 feet. Lows 61-71. Highs 82-92.
.TUESDAY...Mostly cloudy. Numerous showers and scattered
thunderstorms near 5000 feet and numerous showers and scattered
thunderstorms near 7000 feet. Lows 60-70. Highs 78-88.
$$
UTZ491-201115-
Southeast Utah-
106 PM MDT Tue Aug 19 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20%).
Chc of lightning....0 percent.
Min temperature.....63-73 F near 5000 feet
56-66 F near 8000 feet.
24 hr trend......1 degree warmer.
Max humidity........40-50%.
24 hr trend......18% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......12000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Northwest 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%). Near
8000 feet, mostly sunny (10-20%) until 1200,
then partly cloudy (30-40%). Isolated showers
and thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....92-102 F near 5000 feet
79-89 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........11-16%.
24 hr trend......6% wetter.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the morning.
CWR.................0 percent.
Mixing Height.......3000 ft AGL until 1100. 12500 ft AGL after
1200.
Transport Winds.....Southeast 5 mph.
Clearing Index......Less than 500 until 1300, then 900.
.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....65-75 F near 5000 feet
59-69 F near 8000 feet.
24 hr trend......3 degrees warmer.
Max humidity........37-47%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent.
Mixing Height.......12000 ft AGL until 1900. 1500 ft AGL after
2000.
Transport Winds.....Southwest 5 to 10 mph until 2400, then
southeast.
Clearing Index......850 until 1900. Less than 500 after 2000.
.THURSDAY...
Sky/weather.........Near 5000 feet, mostly sunny (20-30%), isolated
showers and thunderstorms after 1200. Near 8000
feet, mostly sunny (10-20%) until 1200, then
partly cloudy (40-50%), scattered showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....92-102 F near 5000 feet
79-89 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........12-17%.
24 hr trend......1% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent.
Mixing Height.......2500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....Southeast 5 to 10 mph until 1200, then
northwest.
Clearing Index......550 until 1500, then 900.
.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms near
5000 feet and scattered showers and thunderstorms near 8000 feet
. Lows 65-75. Highs 92-102. 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 83-93. Winds less than 15 mph.
.MONDAY...Mostly cloudy. Scattered showers and thunderstorms near
5000 feet and numerous showers and scattered thunderstorms near
8000 feet. Lows 60-70. Highs 82-92.
.TUESDAY...Mostly cloudy. Scattered showers and thunderstorms
near 5000 feet and numerous showers and scattered thunderstorms
near 8000 feet. Lows 59-69. Highs 79-89.
$$