Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
494
FNUS55 KGJT 212046
FWFGJT
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
246 PM MDT Mon Jul 21 2025
.DISCUSSION...
Showers and thunderstorms will continue to form on terrain
through Thursday. Wetting rains will be possible with many storms.
Localized critical fire weather is possible for warmer and drier
low elevations and becomes more widespread by week`s end as we
return to a hotter and drier regime.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
COZ200-221300-
Little Snake Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....56-66 F.
Max humidity........51-61%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 20 to 25 mph.
Mixing Height.......8500 ft AGL until 2000. 1500 ft AGL after 2100.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Very good until 2100, then poor.
.TUESDAY...
Sky/weather.........Near 6000 feet, partly cloudy (30-40%) until
1200, then mostly sunny (20-30%). Near 8000
feet, partly cloudy (30-40%), isolated showers
and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....81-91 F near 6000 feet
70-80 F near 8000 feet.
Min humidity........10-15%.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph in the afternoon.
Localized gusts up to 30 mph.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 20 to 25 mph.
Mixing Height.......2000 ft AGL until 0900, then 12000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph until 1200, then 15 to 20
mph.
Smoke dispersal.....Poor until 0900. Excellent after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....55-65 F.
Max humidity........40-50% near 6000 feet
34-44% near 8000 feet.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph decreasing to 5 to 10
mph after midnight.
Mixing Height.......11500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Very good until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40%). Near 6000 feet,
isolated showers after 1200. Near 8000 feet,
isolated showers and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....82-92 F near 6000 feet
68-78 F near 8000 feet.
Min humidity........8-13%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 14000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54-64. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 51-61. Highs 86-96. Winds less than
15 mph.
.SATURDAY...Mostly clear. Lows 51-61. Highs 87-97. Southwest
winds 10 to 20 mph with gusts to 30 mph.
.SUNDAY...Mostly clear. Lows 51-61. Highs 88-98.
.MONDAY...Mostly clear. Lows 53-63. Highs 90-100.
$$
COZ201-221300-
Routt Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....49-59 F.
Max humidity........59-74%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......7500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Fair until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....69-79 F.
Min humidity........22-32%.
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....Southwest 15 to 20 mph.
Mixing Height.......2500 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....49-59 F.
Max humidity........55-65%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................20 percent.
15K Ft MSL Winds....West 10 to 15 mph.
Mixing Height.......8000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (50-60%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....70-80 F.
Min humidity........17-27%.
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 10 to 15 mph.
Mixing Height.......11000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 72-82. Winds less than 15 mph.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
47-57. Highs 74-84. Winds less than 15 mph.
.SATURDAY...Mostly clear. Lows 47-57. Highs 76-86. Winds less
than 15 mph.
.SUNDAY...Mostly clear. Lows 48-58. Highs 78-88.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
50-60. Highs 79-89.
$$
COZ202-221300-
White River Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....54-64 F.
Max humidity........50-60%.
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....Southwest 20 to 25 mph increasing to 20 to 30
mph after midnight.
Mixing Height.......8000 ft AGL until 2000. 1000 ft AGL after 2100.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Good until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....78-88 F near 6000 feet
70-80 F near 8000 feet.
Min humidity........10-15% near 6000 feet
16-26% near 8000 feet.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph in the afternoon.
Localized gusts up to 25 mph.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 20 to 25 mph decreasing to 15 to 20
mph in the afternoon.
Mixing Height.......1500 ft AGL until 0900, then 12000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Excellent after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 6000 feet,
isolated showers until 2400. Near 8000 feet,
isolated showers and thunderstorms until 2400.
Chc of lightning....0 percent.
Min temperature.....53-63 F.
Max humidity........39-49%.
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 15 to 20 mph decreasing to 5 to 10
mph after midnight.
Mixing Height.......11000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Good until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....79-89 F near 6000 feet
70-80 F near 8000 feet.
Min humidity........8-13% near 6000 feet
12-22% near 8000 feet.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 13000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54-64. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 52-62. Highs 86-96. Winds less than 15 mph.
.SATURDAY...Mostly clear. Lows 52-62. Highs 87-97. Southwest
winds 10 to 20 mph with gusts to 25 mph.
.SUNDAY...Mostly clear. Lows 52-62. Highs 88-98.
.MONDAY...Mostly clear. Lows 53-63. Highs 90-100.
$$
COZ203-221300-
Lower Colorado River-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Areas of smoke until
2400. Isolated thunderstorms until 2400.
Isolated showers.
Chc of lightning....20 percent.
Min temperature.....59-69 F near 6000 feet
53-63 F near 8000 feet.
Max humidity........45-55%.
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....Southwest 15 to 20 mph.
Mixing Height.......9000 ft AGL until 2000, then 2500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Smoke dispersal.....Good until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Areas of smoke after
1200. Isolated showers and thunderstorms after
1200.
Chc of lightning....20 percent.
Max temperature.....81-91 F near 6000 feet
72-82 F near 8000 feet.
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....Southwest 15 to 20 mph.
Mixing Height.......2500 ft AGL until 0900, then 11000 ft AGL.
Transport Winds.....South 5 mph until 1200, then west 10 to 15 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Areas of smoke until
2400. Isolated showers and thunderstorms until
2400.
Chc of lightning....10 percent.
Min temperature.....59-69 F near 6000 feet
52-62 F near 8000 feet.
Max humidity........37-47%.
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....Southwest 10 to 15 mph.
Mixing Height.......9500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph until 2400, then
southeast.
Smoke dispersal.....Good until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....82-92 F near 6000 feet
73-83 F near 8000 feet.
Min humidity........11-16%.
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....Southwest 5 to 10 mph.
Mixing Height.......3500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 58-68. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 56-66. Highs 86-96. Winds less than
15 mph.
.SATURDAY...Mostly clear. Lows 56-66. Highs 87-97. Winds less
than 15 mph.
.SUNDAY...Mostly clear. Lows 57-67. Highs 88-98.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
60-70. Highs 90-100.
$$
COZ205-221300-
Colorado River Headwaters-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Scattered showers and
thunderstorms until 2400.
Chc of lightning....30 percent.
Min temperature.....50-60 F.
Max humidity........61-76%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......7000 ft AGL until 2000, then 2500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Scattered showers and
thunderstorms after 1200.
Chc of lightning....50 percent.
Max temperature.....75-85 F.
Min humidity........22-32%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................50 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......3000 ft AGL until 0900, then 8500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Areas of smoke until 2400.
Scattered showers and thunderstorms until 2400.
Chc of lightning....30 percent.
Min temperature.....50-60 F.
Max humidity........57-72%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................30 percent.
15K Ft MSL Winds....West 10 to 15 mph.
Mixing Height.......6500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....50 percent.
Max temperature.....74-84 F.
Min humidity........17-27%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................20 percent.
15K Ft MSL Winds....West 5 to 10 mph.
Mixing Height.......9000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 73-83. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 75-85. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 46-56. Highs 77-87. Winds less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 79-89.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
50-60. Highs 80-90.
$$
COZ290-221300-
Paradox Valley Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....56-66 F near 6000 feet
50-60 F near 8000 feet.
Max humidity........46-56% near 6000 feet
61-76% near 8000 feet.
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....South 15 to 20 mph.
Mixing Height.......10500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Smoke dispersal.....Good until 2100, then poor.
.TUESDAY...
Sky/weather.........Near 6000 feet, mostly sunny (20-30%) until
1200, then partly cloudy (40-50%). Near 8000
feet, partly cloudy (30-40%), isolated showers
and thunderstorms until 1200. Scattered showers
and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....80-90 F near 6000 feet
68-78 F near 8000 feet.
Min humidity........13-23% near 6000 feet
21-31% near 8000 feet.
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....Southwest 20 to 25 mph decreasing to 15 to 20
mph in the afternoon.
Mixing Height.......2000 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....56-66 F near 6000 feet
49-59 F near 8000 feet.
Max humidity........36-46% 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....Southwest 10 to 15 mph.
Mixing Height.......9500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Near 8000 feet,
isolated showers and thunderstorms until 1200.
Scattered showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....80-90 F near 6000 feet
68-78 F near 8000 feet.
Min humidity........11-16% near 6000 feet
15-25% near 8000 feet.
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....Southwest 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 12500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 58-68. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers near 8000 feet. Lows
55-65. Highs 85-95. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 56-66. Highs 86-96. Southwest winds 10 to 20 mph
with gusts to 30 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 56-66. Highs 88-98.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms near
6000 feet and scattered showers and thunderstorms near 8000 feet.
Lows 59-69. Highs 89-99.
$$
COZ291-221300-
Northern San Juan Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....48-58 F.
Max humidity........64-79%.
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....Southwest 10 to 15 mph.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (60-70%). Areas of smoke until 1200.
Isolated showers and thunderstorms until 1200,
then scattered showers and thunderstorms.
Chc of lightning....50 percent.
Max temperature.....66-76 F.
Min humidity........25-35%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................40 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......2500 ft AGL until 0900, then 8000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....47-57 F.
Max humidity........56-66%.
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....Southwest 5 to 10 mph.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....50 percent.
Max temperature.....66-76 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....Southwest 10 to 15 mph.
Mixing Height.......3500 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 47-57. Highs 73-83. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 75-85. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 46-56. Highs 76-86. Winds less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 78-88.
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 51-61. Highs 78-88.
$$
COZ292-221300-
North Fork Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Near 6000 feet, areas
of smoke after 2400, isolated showers and
thunderstorms until 2400. Near 8000 feet,
scattered showers and isolated thunderstorms
until 2400.
Chc of lightning....20 percent.
Min temperature.....55-65 F near 6000 feet
50-60 F near 8000 feet.
Max humidity........52-62%.
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....Southwest 10 to 15 mph.
Mixing Height.......8500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Fair until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Near 6000 feet, areas
of smoke after 1200. Scattered showers and
thunderstorms after 1200. Near 8000 feet, areas
of smoke until 1200, isolated showers and
thunderstorms until 1200.
Chc of lightning....30 percent.
Max temperature.....82-92 F near 6000 feet
71-81 F near 8000 feet.
Min humidity........18-28%.
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....Southwest 15 to 20 mph.
Mixing Height.......2500 ft AGL until 0900, then 9500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (50-60%). Areas of smoke.
Isolated showers and thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....55-65 F near 6000 feet
50-60 F near 8000 feet.
Max humidity........46-56%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southeast 5 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Near 6000 feet, partly cloudy (40-50%). Near
8000 feet, partly cloudy (30-40%) until 1200,
then mostly cloudy (60-70%), isolated showers
and thunderstorms until 1200. Scattered showers
and thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....82-92 F near 6000 feet
72-82 F near 8000 feet.
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....Southwest 5 to 10 mph.
Mixing Height.......3500 ft AGL until 1000, then 11000 ft AGL.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 57-67. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers near 8000 feet. Lows
55-65. Highs 86-96. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 55-65. Highs 88-98. Winds less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 56-66. Highs 89-99.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms near
6000 feet and scattered showers and thunderstorms near 8000 feet.
Lows 58-68. Highs 90-100.
$$
COZ293-221300-
Gunnison Basin Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Scattered showers and
thunderstorms until 2400.
Chc of lightning....30 percent.
Min temperature.....48-58 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....West 10 to 15 mph.
Mixing Height.......6500 ft AGL until 2100, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (70-80%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....50 percent.
Max temperature.....73-83 F.
Min humidity........25-35%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................60 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......2500 ft AGL until 0900, then 7000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 1200, then good until 1500, then
fair.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Scattered showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....30 percent.
Min temperature.....48-58 F.
Max humidity........63-78%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................20 percent.
15K Ft MSL Winds....Northwest 5 to 10 mph.
Mixing Height.......5000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then numerous showers
and thunderstorms.
Chc of lightning....50 percent.
Max temperature.....73-83 F.
Min humidity........20-30%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................30 percent.
15K Ft MSL Winds....West 5 to 10 mph.
Mixing Height.......8500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 47-57. Highs 73-83. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
45-55. Highs 76-86. Winds less than 15 mph.
.SATURDAY...Mostly clear. Lows 45-55. Highs 77-87. Winds less
than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 79-89.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
48-58. Highs 80-90.
$$
COZ207-221300-
Southwest Colorado Lower Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....57-67 F.
Max humidity........52-62%.
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....Southwest 10 to 15 mph increasing to south 15
to 20 mph after midnight.
Mixing Height.......10500 ft AGL until 2000. 1500 ft AGL after
2100.
Transport Winds.....West 10 to 15 mph until 2400, then 5 mph.
Smoke dispersal.....Good until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....82-92 F.
Min humidity........13-23%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph decreasing to 10 to 15
mph in the afternoon.
Mixing Height.......2000 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....West 5 mph until 1200, then 10 to 15 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....56-66 F.
Max humidity........48-58%.
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....Southwest 5 to 10 mph.
Mixing Height.......10000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Smoke dispersal.....Good until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....82-92 F.
Min humidity........12-17%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................10 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 12500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 54-64. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 52-62. Highs 86-96. Winds less than
15 mph.
.SATURDAY...Clear. Lows 52-62. Highs 86-96. Winds less than
15 mph.
.SUNDAY...Mostly clear. Lows 53-63. Highs 88-98.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
57-67. Highs 90-100.
$$
COZ294-221300-
Southwest Colorado Upper West Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....52-62 F.
Max humidity........69-84%.
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....Southwest 10 to 15 mph increasing to south 15
to 20 mph after midnight.
Mixing Height.......8000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Fair until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....30 percent.
Max temperature.....71-81 F.
Min humidity........19-29%.
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....Southwest 15 to 20 mph decreasing to 10 to 15
mph in the afternoon.
Mixing Height.......2000 ft AGL until 0900, then 9000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%) until 2400, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....52-62 F.
Max humidity........60-75%.
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....West 5 to 10 mph shifting to the south after
midnight.
Mixing Height.......7500 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Smoke dispersal.....Fair until 2100, then poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (50-60%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....30 percent.
Max temperature.....72-82 F.
Min humidity........15-25%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................20 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......3500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 46-56. Highs 74-84. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
44-54. Highs 76-86. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 45-55. Highs 76-86. Winds less than 15 mph.
.SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 78-88.
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 79-89.
$$
COZ295-221300-
Southwest Colorado Upper East Forecast Area-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (50-60%). Scattered showers and
thunderstorms until 2400.
Chc of lightning....30 percent.
Min temperature.....48-58 F.
Max humidity........71-86%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................20 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then northeast.
Smoke dispersal.....Fair until 2100, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then numerous showers
and thunderstorms.
Chc of lightning....60 percent.
Max temperature.....75-85 F.
Min humidity........23-33%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................30 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......2500 ft AGL until 0900, then 8500 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Scattered showers and
thunderstorms until 2400.
Chc of lightning....40 percent.
Min temperature.....47-57 F.
Max humidity........71-86%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................30 percent.
15K Ft MSL Winds....Northwest 10 to 15 mph decreasing to 5 to 10
mph after midnight.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northeast 5 mph.
Smoke dispersal.....Poor.
.WEDNESDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then numerous showers
and thunderstorms.
Chc of lightning....60 percent.
Max temperature.....73-83 F.
Min humidity........21-31%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................30 percent.
15K Ft MSL Winds....West 5 to 10 mph.
Mixing Height.......9000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 46-56. Highs 75-85. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows
45-55. Highs 77-87. Winds less than 15 mph.
.SATURDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 46-56. Highs 78-88. Winds less than 15 mph.
.SUNDAY...Mostly clear. Scattered showers and thunderstorms. Lows
47-57. Highs 79-89.
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 80-90.
$$
UTZ485-221300-
Eastern Ashley National Forest-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....53-63 F near 7000 feet
40-50 F near 10000 feet.
24 hr trend......5 degrees warmer.
Max humidity........48-58% near 7000 feet
58-73% near 10000 feet.
24 hr trend......17% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................10 percent.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1000 until 2000. Less than 500 after 2100.
.TUESDAY...
Sky/weather.........Partly cloudy (40-50%).
Chc of lightning....0 percent.
Max temperature.....75-85 F near 7000 feet
63-73 F near 10000 feet.
24 hr trend......Unchanged.
Min humidity........12-22%.
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.......2000 ft AGL until 0900, then 12500 ft AGL.
Transport Winds.....Southwest 10 to 15 mph.
Clearing Index......Less than 500 until 0900. 1050 after 1000.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%).
Chc of lightning....0 percent.
Min temperature.....54-64 F near 7000 feet
40-50 F near 10000 feet.
24 hr trend......1 degree warmer.
Max humidity........36-46% near 7000 feet
44-54% near 10000 feet.
24 hr trend......15% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......10500 ft AGL until 2000. 1500 ft AGL after
2100.
Transport Winds.....West 5 to 10 mph.
Clearing Index......1000 until 2000, then less than 500.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....75-85 F near 7000 feet
63-73 F near 10000 feet.
24 hr trend......1 degree warmer.
Min humidity........12-22%.
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.................10 percent.
Mixing Height.......3500 ft AGL until 1000, then 11500 ft AGL.
Transport Winds.....East 5 mph until 1200, then southwest.
Clearing Index......Less than 500 until 1000. 1050 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms .
Lows 53-63. Highs 75-85. Winds less than 15 mph.
.FRIDAY...Mostly clear. Isolated showers near 10000 feet. Lows
51-61. Highs 77-87. Winds less than 15 mph.
.SATURDAY...Mostly clear. Lows 51-61. Highs 78-88. Winds less
than 15 mph.
.SUNDAY...Mostly clear. Lows 51-61. Highs 80-90.
.MONDAY...Mostly clear. Lows 53-63. Highs 82-92.
$$
UTZ486-221300-
Eastern Uinta Basin-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....56-66 F near 5000 feet
50-60 F near 8000 feet.
24 hr trend......2 degrees cooler.
Max humidity........42-52% near 5000 feet
49-59% near 8000 feet.
24 hr trend......14% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................0 percent.
Mixing Height.......7500 ft AGL until 2000. 2000 ft AGL after 2100.
Transport Winds.....West 10 to 15 mph until 2400, then southwest 5
mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.TUESDAY...
Sky/weather.........Near 5000 feet, partly cloudy (30-40%) until
1200, then mostly sunny (20-30%). Near 8000
feet, partly cloudy (30-40%).
Chc of lightning....0 percent.
Max temperature.....80-90 F near 5000 feet
69-79 F near 8000 feet.
24 hr trend......Unchanged.
Min humidity........11-16%.
24 hr trend......4% drier.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph in the afternoon.
Localized gusts up to 25 mph.
CWR.................0 percent.
Mixing Height.......3000 ft AGL until 1000, then 12500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph until 1200, then 15 to 20
mph.
Clearing Index......Less than 500 until 0900. 1050 after 1000.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....56-66 F.
24 hr trend......Unchanged.
Max humidity........29-39%.
24 hr trend......14% 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.....Southwest 5 to 10 mph until 2400, then north.
Clearing Index......1050 until 2000, then less than 500.
.WEDNESDAY...
Sky/weather.........Near 5000 feet, partly cloudy (30-40%) until
1200, then mostly sunny (20-30%). Near 8000
feet, partly cloudy (30-40%), isolated showers
and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....81-91 F near 5000 feet
70-80 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........10-15%.
24 hr trend......1% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................0 percent.
Mixing Height.......3500 ft AGL until 1000, then 13000 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...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 59-69. Highs 82-92. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 56-66. Highs 83-93. Winds less than
15 mph.
.SATURDAY...Mostly clear. Lows 56-66. Highs 84-94. Southwest
winds 10 to 20 mph with gusts to 25 mph.
.SUNDAY...Mostly clear. Lows 56-66. Highs 86-96.
.MONDAY...Mostly clear. Lows 58-68. Highs 87-97.
$$
UTZ487-221300-
Book Cliffs-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....57-67 F near 5000 feet
51-61 F near 8000 feet.
24 hr trend......4 degrees cooler.
Max humidity........41-51% near 5000 feet
51-61% near 8000 feet.
24 hr trend......17% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................10 percent.
Mixing Height.......5000 ft AGL until 2100, then 1500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%). Near 8000 feet,
isolated showers after 1200.
Chc of lightning....0 percent.
Max temperature.....80-90 F near 5000 feet
72-82 F near 8000 feet.
24 hr trend......Unchanged.
Min humidity........10-15%.
24 hr trend......4% drier.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph in the afternoon.
Localized gusts up to 25 mph.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 0900, then 12000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%).
Chc of lightning....0 percent.
Min temperature.....56-66 F near 5000 feet
51-61 F near 8000 feet.
24 hr trend......Unchanged.
Max humidity........27-37% near 5000 feet
33-43% near 8000 feet.
24 hr trend......15% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......11500 ft AGL until 2000. 1000 ft AGL after
2100.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000, then less than 500.
.WEDNESDAY...
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.....81-91 F near 5000 feet
73-83 F near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........9-14%.
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.......3500 ft AGL until 1000, then 13000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 57-67. Highs 84-94. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 56-66. Highs 85-95. Winds less than
15 mph.
.SATURDAY...Mostly clear. Lows 56-66. Highs 86-96. Southwest
winds 10 to 20 mph with gusts to 25 mph.
.SUNDAY...Mostly clear. Lows 56-66. Highs 87-97.
.MONDAY...Mostly clear. Lows 57-67. Highs 89-99.
$$
UTZ490-221300-
Colorado River Basin-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....63-73 F near 5000 feet
56-66 F near 7000 feet.
24 hr trend......3 degrees cooler.
Max humidity........36-46% near 5000 feet
42-52% near 7000 feet.
24 hr trend......20% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................10 percent.
Mixing Height.......10000 ft AGL until 2000. 1500 ft AGL after
2100.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
sunny (20-30%). Near 5000 feet, isolated
showers and thunderstorms after 1200. Near 7000
feet, isolated showers after 1200.
Chc of lightning....10 percent.
Max temperature.....87-97 F near 5000 feet
76-86 F near 7000 feet.
24 hr trend......1 degree cooler.
Min humidity........10-15%.
24 hr trend......3% drier.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph with gusts to 30 mph in
the afternoon.
CWR.................0 percent.
Mixing Height.......2000 ft AGL until 0900, then 11500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 5000 feet,
isolated showers and thunderstorms until 2400.
near 7000 feet, isolated showers until 2400.
Chc of lightning....10 percent.
Min temperature.....61-71 F near 5000 feet
55-65 F near 7000 feet.
24 hr trend......2 degrees cooler.
Max humidity........26-36%.
24 hr trend......11% 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. 1000 ft AGL after
2100.
Transport Winds.....South 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.WEDNESDAY...
Sky/weather.........Near 5000 feet, partly cloudy (30-40%) until
1200, then mostly sunny (20-30%). Near 7000
feet, partly cloudy (30-40%). Isolated showers
and thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....88-98 F near 5000 feet
77-87 F near 7000 feet.
24 hr trend......1 degree warmer.
Min humidity........8-13%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................0 percent.
Mixing Height.......3000 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....Southwest 5 mph.
Clearing Index......Less than 500 until 1000. 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...Mostly clear. Lows 61-71. Highs 90-100. Winds less than
15 mph.
.SATURDAY...Clear. Lows 60-70. Highs 90-100. Winds less than
15 mph.
.SUNDAY...Mostly clear. Lows 61-71. Highs 92-102.
.MONDAY...Mostly clear. Lows 63-73. Highs 93-103.
$$
UTZ491-221300-
Southeast Utah-
246 PM MDT Mon Jul 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 5000 feet, areas
of smoke until 2400. Near 8000 feet, areas of
smoke after 2400. Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....62-72 F near 5000 feet
53-63 F near 8000 feet.
24 hr trend......6 degrees cooler.
Max humidity........39-49% near 5000 feet
47-57% near 8000 feet.
24 hr trend......9% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................10 percent.
Mixing Height.......10000 ft AGL until 2000. 1500 ft AGL after
2100.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.TUESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....84-94 F near 5000 feet
70-80 F near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........13-23%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 0900. 10000 ft AGL after
1000.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....60-70 F near 5000 feet
53-63 F near 8000 feet.
24 hr trend......Unchanged.
Max humidity........35-45%.
24 hr trend......7% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......9500 ft AGL until 2000. 1000 ft AGL after 2100.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....84-94 F near 5000 feet
71-81 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........12-17%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................0 percent.
Mixing Height.......2500 ft AGL until 1000. 12000 ft AGL after
1200.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Mostly clear. Isolated showers and thunderstorms .
Lows 60-70. Highs 86-96. Winds less than 15 mph.
.FRIDAY...Mostly clear. Lows 58-68. Highs 88-98. Winds less than
15 mph.
.SATURDAY...Clear. Lows 59-69. Highs 89-99. Winds less than
15 mph.
.SUNDAY...Mostly clear. Lows 59-69. Highs 90-100.
.MONDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 62-72. Highs 92-102.
$$