Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Junction, CO
Issued by NWS Grand Junction, CO
374
FNUS55 KGJT 151954
FWFGJT
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
154 PM MDT Fri Aug 15 2025
.DISCUSSION...Elevated relative humidities will keep critical
fire weather conditions suppressed through Saturday. Warmer and
drier conditions return Sunday as we begin another hot and dry
period. However, afternoon winds are expected to remain below
thresholds beneath high pressure next week. Thunderstorms will
become less widespread by Sunday, but remain a concern over the
higher terrain for the week ahead.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
COZ200-161200-
Little Snake Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (70-80%) until 2400, then partly
cloudy (40-50%). Scattered showers and isolated
thunderstorms until 2400. Isolated showers
after 2400.
Chc of lightning....20 percent.
Min temperature.....54-64 F.
Max humidity........60-75%.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................20 percent.
15K Ft MSL Winds....South 15 to 20 mph increasing to 20 to 30 mph
after midnight.
Mixing Height.......8500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Good until 2100, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Near 8000 feet,
isolated showers until 1200. Scattered showers
and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....79-89 F near 6000 feet
68-78 F near 8000 feet.
Min humidity........13-23% near 6000 feet
19-29% 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....West 20 to 25 mph decreasing to 15 to 20 mph in
the afternoon.
Mixing Height.......2500 ft AGL until 1000, then 12000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....53-63 F.
Max humidity........53-63% near 6000 feet
47-57% 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....Southwest 15 to 20 mph.
Mixing Height.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Fair until 2100, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Near 8000 feet, isolated
showers and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....80-90 F near 6000 feet
66-76 F near 8000 feet.
Min humidity........10-15%.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................0 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......3000 ft AGL until 1000, then 13000 ft AGL.
Transport Winds.....Southwest 5 mph until 1200, then 10 to 15 mph.
Smoke dispersal.....Poor until 0900. Excellent after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 50-60. Highs 85-95. Winds less than 15 mph.
.TUESDAY...Clear. Lows 50-60. Highs 88-98. Winds less than
15 mph.
.WEDNESDAY...Clear. Lows 51-61. Highs 90-100. Winds less than
15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
6000 feet and isolated showers near 8000 feet. Lows 53-63. Highs
89-99.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
54-64. Highs 87-97.
$$
COZ201-161200-
Routt Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Areas of smoke. Scattered
showers and thunderstorms until 2400, isolated
showers after 2400.
Chc of lightning....50 percent.
Min temperature.....46-56 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.................50 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......6000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (60-70%). Areas of smoke. Isolated
showers and thunderstorms until 1200, scattered
showers and thunderstorms after 1200.
Chc of lightning....50 percent.
Max temperature.....67-77 F.
Min humidity........24-34%.
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 15 to 20 mph.
Mixing Height.......3000 ft AGL until 1000, then 9500 ft AGL.
Transport Winds.....West 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....20 percent.
Min temperature.....47-57 F.
Max humidity........55-65%.
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 increasing to southwest 20 to
25 mph after midnight.
Mixing Height.......8500 ft AGL until 1900. 1500 ft AGL after 2000.
Transport Winds.....West 5 mph until 2400, then south.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Areas of smoke until 1200.
Isolated showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....69-79 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 15 to 20 mph becoming southwest 10 to 15
mph in the afternoon.
Mixing Height.......2000 ft AGL until 0800, then 12000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 75-85. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 77-87. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 48-58. Highs 79-89. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 49-59. Highs 79-89.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 76-86.
$$
COZ202-161200-
White River Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Near 6000 feet, areas of smoke
until 2400, scattered showers and isolated
thunderstorms until 2400. Near 8000 feet,
scattered showers and thunderstorms until 2400,
areas of smoke. Isolated showers after 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....South 20 to 25 mph.
Mixing Height.......7000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Near 6000 feet, areas
of smoke until 1200. Near 8000 feet, areas of
smoke. Isolated showers and thunderstorms until
1200. Scattered showers and thunderstorms after
1200.
Chc of lightning....30 percent.
Max temperature.....78-88 F near 6000 feet
67-77 F near 8000 feet.
Min humidity........13-23% near 6000 feet
22-32% 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....West 20 to 25 mph decreasing to 10 to 15 mph in
the afternoon.
Mixing Height.......2500 ft AGL until 1000, then 11500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Areas of smoke.
Isolated showers and thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....52-62 F.
Max humidity........51-61% near 6000 feet
41-51% 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....Southwest 15 to 20 mph.
Mixing Height.......9500 ft AGL until 1900. 1000 ft AGL after 2000.
Transport Winds.....West 5 to 10 mph until 2400, then southeast.
Smoke dispersal.....Fair until 2100, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Areas of smoke until
1200. 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........10-15% near 6000 feet
14-24% near 8000 feet.
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....Southwest 15 to 20 mph.
Mixing Height.......2500 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....Southwest 5 mph until 1200, then 10 to 15 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 50-60. Highs 85-95. Winds less than 15 mph.
.TUESDAY...Clear. Lows 51-61. Highs 88-98. Winds less than
15 mph.
.WEDNESDAY...Clear. Isolated showers near 6000 feet and isolated
showers and thunderstorms near 8000 feet. Lows 52-62. Highs
89-99. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 53-63. Highs 90-100.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 55-65. Highs 88-98.
$$
COZ203-161200-
Lower Colorado River-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Areas of smoke. Scattered
showers and thunderstorms until 2400, isolated
showers after 2400.
Chc of lightning....40 percent.
Min temperature.....55-65 F near 6000 feet
49-59 F near 8000 feet.
Max humidity........57-67%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................30 percent.
15K Ft MSL Winds....South 20 to 25 mph.
Mixing Height.......8000 ft AGL until 2000, then 2500 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms. Areas of smoke after
1200.
Chc of lightning....40 percent.
Max temperature.....79-89 F near 6000 feet
70-80 F near 8000 feet.
Min humidity........16-26%.
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 15 to 20 mph decreasing to 10 to 15 mph in
the afternoon.
Mixing Height.......2500 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.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....20 percent.
Min temperature.....57-67 F.
Max humidity........42-52%.
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.......9000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 mph until 2400, then east.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny (20-30%). Areas of smoke until
1200. Isolated showers and thunderstorms after
1200.
Chc of lightning....10 percent.
Max temperature.....81-91 F near 6000 feet
72-82 F near 8000 feet.
Min humidity........11-21%.
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....Southwest 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000. 12500 ft AGL after
1200.
Transport Winds.....South 5 mph until 1200, then southwest.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 56-66. Highs 86-96. Winds less than 15 mph.
.TUESDAY...Clear. Isolated showers and thunderstorms. Lows 57-67.
Highs 89-99. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 59-69. Highs 90-100. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 60-70. Highs 90-100.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 61-71. Highs 89-99.
$$
COZ205-161200-
Colorado River Headwaters-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Areas of smoke. Scattered
showers and thunderstorms until 2400, isolated
showers after 2400.
Chc of lightning....50 percent.
Min temperature.....46-56 F.
Max humidity........70-85%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................30 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph.
Mixing Height.......5500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (60-70%). Areas of smoke. Isolated
thunderstorms until 1200. Scattered showers.
Scattered thunderstorms after 1200.
Chc of lightning....50 percent.
Max temperature.....71-81 F.
Min humidity........22-32%.
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 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 9000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....20 percent.
Min temperature.....49-59 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....West 10 to 15 mph.
Mixing Height.......8500 ft AGL until 1900. 2000 ft AGL after 2000.
Transport Winds.....West 5 mph until 2400, then south.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Areas of smoke until 1200.
Isolated showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....74-84 F.
Min humidity........15-25%.
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.......7000 ft AGL until 1200, then 11500 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Very good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 76-86. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 79-89. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 48-58. Highs 80-90. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 49-59. Highs 80-90.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 78-88.
$$
COZ290-161200-
Paradox Valley Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (30-40%). Near 6000 feet, scattered
showers and isolated thunderstorms until 2400.
near 8000 feet, scattered showers and
thunderstorms until 2400, areas of smoke after
2400. Isolated showers after 2400.
Chc of lightning....20 percent.
Min temperature.....53-63 F near 6000 feet
47-57 F near 8000 feet.
Max humidity........54-64% near 6000 feet
70-85% near 8000 feet.
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....South 20 to 30 mph becoming southwest 15 to 20
mph after midnight.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then southeast.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Near 6000 feet, mostly sunny (20-30%) until
1200. Mostly cloudy (60-70%) after 1200. Near
8000 feet, partly cloudy (30-40%) until 1200.
Isolated showers and thunderstorms until 1200,
then scattered showers and thunderstorms.
Chc of lightning....40 percent.
Max temperature.....78-88 F near 6000 feet
67-77 F near 8000 feet.
Min humidity........16-26% near 6000 feet
22-32% 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....Northwest 10 to 15 mph becoming west 5 to 10
mph in the afternoon.
Mixing Height.......1500 ft AGL until 0900, then 10500 ft AGL.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....54-64 F near 6000 feet
49-59 F near 8000 feet.
Max humidity........40-50% near 6000 feet
55-65% 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.......9000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 mph until 2400, then southeast.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Near 6000 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.....80-90 F near 6000 feet
69-79 F near 8000 feet.
Min humidity........12-17% near 6000 feet
16-26% 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. 12500 ft AGL after
1200.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 56-66. Highs 86-96. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms near
6000 feet and scattered showers and thunderstorms near 8000 feet.
Lows 58-68. Highs 90-100. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Scattered showers and thunderstorms.
Lows 59-69. Highs 90-100. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 60-70. Highs 90-100.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 60-70. Highs 89-99.
$$
COZ291-161200-
Northern San Juan Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Areas of smoke. Scattered
thunderstorms until 2400. Scattered showers.
Chc of lightning....50 percent.
Min temperature.....45-55 F.
Max humidity........69-84%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................30 percent.
15K Ft MSL Winds....Southwest 15 to 20 mph.
Mixing Height.......5500 ft AGL until 2000, then 2500 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly
cloudy (70-80%). Isolated showers and
thunderstorms until 1200, then numerous showers
and scattered thunderstorms.
Chc of lightning....50 percent.
Max temperature.....69-79 F.
Min humidity........23-33%.
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 decreasing to 5 to 10 mph in
the afternoon.
Mixing Height.......2500 ft AGL until 0900, then 9500 ft AGL.
Transport Winds.....West 5 to 10 mph.
Smoke dispersal.....Poor until 0900, then fair.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....46-56 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....Southwest 5 to 10 mph.
Mixing Height.......7500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 mph until 2400, then south.
Smoke dispersal.....Poor.
.SUNDAY...
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.....71-81 F.
Min humidity........18-28%.
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.......11000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
47-57. Highs 77-87. Winds less than 15 mph.
.TUESDAY...Mostly clear. Scattered showers and thunderstorms.
Lows 49-59. Highs 79-89. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 80-90. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 80-90.
.FRIDAY...Partly cloudy. Numerous showers and scattered
thunderstorms. Lows 51-61. Highs 78-88.
$$
COZ292-161200-
North Fork Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Near 6000 feet, scattered
showers and thunderstorms until 2400, then
isolated showers. Near 8000 feet, areas of
smoke until 2400, scattered thunderstorms until
2400. Scattered showers.
Chc of lightning....40 percent.
Min temperature.....51-61 F near 6000 feet
47-57 F near 8000 feet.
Max humidity........63-78%.
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....Southwest 15 to 20 mph.
Mixing Height.......6000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....South 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Near 6000 feet, partly cloudy (40-50%). Near
8000 feet, partly cloudy (40-50%) until 1200,
then mostly cloudy (60-70%). Isolated showers
and thunderstorms until 1200. Scattered showers
and thunderstorms after 1200.
Chc of lightning....40 percent.
Max temperature.....79-89 F near 6000 feet
70-80 F near 8000 feet.
Min humidity........20-30%.
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.......2500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Fair after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....52-62 F near 6000 feet
49-59 F near 8000 feet.
Max humidity........49-59%.
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.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 mph until 2400, then south.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Near 6000 feet, mostly sunny (20-30%). 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.....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 10 to 15 mph.
Mixing Height.......3500 ft AGL until 1000, then 12500 ft AGL.
Transport Winds.....South 5 mph until 1200, then southwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms near
8000 feet. Lows 55-65. Highs 87-97. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
56-66. Highs 89-99. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 57-67. Highs 90-100. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
6000 feet and scattered showers and thunderstorms near 8000 feet.
Lows 58-68. Highs 90-100.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 58-68. Highs 89-99.
$$
COZ293-161200-
Gunnison Basin Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (50-60%). Scattered thunderstorms until
2400. Scattered showers.
Chc of lightning....50 percent.
Min temperature.....46-56 F.
Max humidity........72-87%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................40 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph increasing to 15 to 20
mph after midnight.
Mixing Height.......6000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Smoke dispersal.....Poor.
.SATURDAY...
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....40 percent.
Max temperature.....72-82 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.................20 percent.
15K Ft MSL Winds....West 10 to 15 mph.
Mixing Height.......3000 ft AGL until 1000, then 10000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....48-58 F.
Max humidity........56-71%.
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.
Mixing Height.......7500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Northwest 5 mph.
Smoke dispersal.....Poor.
.SUNDAY...
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.....75-85 F.
Min humidity........16-26%.
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....West 5 to 10 mph.
Mixing Height.......7000 ft AGL until 1200, then 11000 ft AGL.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
45-55. Highs 77-87. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 79-89. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 47-57. Highs 80-90. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 48-58. Highs 80-90.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 79-89.
$$
COZ207-161200-
Southwest Colorado Lower Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Partly cloudy (50-60%). Scattered showers and
isolated thunderstorms until 2400, then
isolated showers.
Chc of lightning....20 percent.
Min temperature.....53-63 F.
Max humidity........61-76%.
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 20 to 25 mph becoming west 15 to 20 mph
after midnight.
Mixing Height.......7500 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then east.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....20 percent.
Max temperature.....80-90 F.
Min humidity........14-24%.
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 west 5 to 10
mph in the afternoon.
Mixing Height.......2500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....South 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....54-64 F.
Max humidity........48-58%.
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.......9500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then north.
Smoke dispersal.....Fair until 2100, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....82-92 F.
Min humidity........11-21%.
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. 12500 ft AGL after
1200.
Transport Winds.....West 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 53-63. Highs 87-97. Winds less than 15 mph.
.TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows
54-64. Highs 90-100. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Scattered thunderstorms and isolated
showers. Lows 56-66. Highs 90-100. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 57-67. Highs 91-101.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 57-67. Highs 90-100.
$$
COZ294-161200-
Southwest Colorado Upper West Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Areas of smoke. Scattered
showers and thunderstorms until 2400, isolated
showers after 2400.
Chc of lightning....40 percent.
Min temperature.....49-59 F.
Max humidity........73-88%.
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....South 20 to 25 mph becoming west 15 to 20 mph
after midnight.
Mixing Height.......5500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then southeast.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (60-70%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms. Areas of smoke after
1200.
Chc of lightning....40 percent.
Max temperature.....69-79 F.
Min humidity........20-30%.
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 15 to 20 mph becoming west 5 to 10
mph in the afternoon.
Mixing Height.......1500 ft AGL until 0900. 9500 ft AGL after 1000.
Transport Winds.....Northwest 5 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....10 percent.
Min temperature.....51-61 F.
Max humidity........57-72%.
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.
Mixing Height.......8000 ft AGL until 2000, then 1000 ft AGL.
Transport Winds.....Northwest 5 mph until 2400, then north.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). Areas of smoke until 1200.
Isolated showers and thunderstorms after 1200.
Chc of lightning....20 percent.
Max temperature.....71-81 F.
Min humidity........14-24%.
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.......10500 ft AGL.
Transport Winds.....Northwest 5 mph until 1200, then southwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows
46-56. Highs 77-87. Winds less than 15 mph.
.TUESDAY...Mostly clear. Scattered showers and thunderstorms.
Lows 48-58. Highs 80-90. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 80-90. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 49-59. Highs 80-90.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 50-60. Highs 79-89.
$$
COZ295-161200-
Southwest Colorado Upper East Forecast Area-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%). Scattered showers and
thunderstorms until 2400, then isolated
showers. Areas of smoke after 2400.
Chc of lightning....40 percent.
Min temperature.....46-56 F.
Max humidity........76-91%.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................40 percent.
15K Ft MSL Winds....Southwest 10 to 15 mph increasing to 15 to 20
mph after midnight.
Mixing Height.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph until 2400, then north.
Smoke dispersal.....Fair until 2100, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms. Areas of smoke after
1200.
Chc of lightning....40 percent.
Max temperature.....74-84 F.
Min humidity........22-32%.
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 15 to 20 mph decreasing to 10 to 15 mph in
the afternoon.
Mixing Height.......3500 ft AGL until 1000, then 10000 ft AGL.
Transport Winds.....Northwest 5 mph until 1200, then west.
Smoke dispersal.....Poor until 0900. Good after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and
thunderstorms until 2400. Areas of smoke.
Chc of lightning....10 percent.
Min temperature.....47-57 F.
Max humidity........58-73%.
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 southwest
after midnight.
Mixing Height.......7000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then northeast.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (30-40%). 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.................10 percent.
15K Ft MSL Winds....Southwest 5 to 10 mph.
Mixing Height.......3500 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....North 5 mph until 1200, then southwest.
Smoke dispersal.....Poor until 0900. Good after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Scattered showers and thunderstorms. Lows
47-57. Highs 79-89. Winds less than 15 mph.
.TUESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 80-90. Winds less than 15 mph.
.WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 80-90. Winds less than 15 mph.
.THURSDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 81-91.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 48-58. Highs 79-89.
$$
UTZ485-161200-
Eastern Ashley National Forest-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%). Scattered showers and
isolated thunderstorms until 2400. Isolated
showers after 2400.
Chc of lightning....20 percent.
Min temperature.....51-61 F near 7000 feet
38-48 F near 10000 feet.
24 hr trend......3 degrees cooler.
Max humidity........56-71% near 7000 feet
71-86% near 10000 feet.
24 hr trend......21% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 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......850 until 1900. Less than 500 after 2000.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%) until 1200, then mostly
cloudy (60-70%). Near 7000 feet, isolated
showers and thunderstorms until 1200, then
scattered showers and thunderstorms. Near 10000
feet, scattered showers until 1200. Scattered
thunderstorms. Numerous showers after 1200.
Chc of lightning....50 percent.
Max temperature.....71-81 F near 7000 feet
60-70 F near 10000 feet.
24 hr trend......Unchanged.
Min humidity........21-31% near 7000 feet
30-40% near 10000 feet.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................50 percent.
Mixing Height.......2000 ft AGL until 1000, then 9000 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 7000 feet,
isolated showers and thunderstorms until 2400.
near 10000 feet, scattered showers and
isolated thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....52-62 F near 7000 feet
37-47 F near 10000 feet.
24 hr trend......3 degrees cooler.
Max humidity........53-63% near 7000 feet
61-76% near 10000 feet.
24 hr trend......11% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................10 percent.
Mixing Height.......7000 ft AGL until 1900. 1500 ft AGL after 2000.
Transport Winds.....Southwest 5 mph.
Clearing Index......800 until 1900. Less than 500 after 2000.
.SUNDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly
cloudy (30-40%). Near 7000 feet, isolated
showers. Isolated thunderstorms after 1200.
near 10000 feet, isolated showers and
thunderstorms until 1200, then scattered
showers and thunderstorms.
Chc of lightning....20 percent.
Max temperature.....73-83 F near 7000 feet
61-71 F near 10000 feet.
24 hr trend......1 degree warmer.
Min humidity........15-25% near 7000 feet
21-31% near 10000 feet.
24 hr trend......7% drier.
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. 12000 ft AGL after
1200.
Transport Winds.....Southwest 5 mph until 1200, then 10 to 15 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Lows 51-61. Highs 77-87. Winds less than
15 mph.
.TUESDAY...Mostly clear. Lows 52-62. Highs 80-90. Winds less than
15 mph.
.WEDNESDAY...Mostly clear. Lows 54-64. Highs 82-92. Winds less
than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
7000 feet and scattered showers and thunderstorms near 10000 feet
. Lows 56-66. Highs 82-92.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms .
Lows 56-66. Highs 80-90.
$$
UTZ486-161200-
Eastern Uinta Basin-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Scattered showers and isolated
thunderstorms until 2400. Isolated showers
after 2400.
Chc of lightning....20 percent.
Min temperature.....53-63 F near 5000 feet
45-55 F near 8000 feet.
24 hr trend......4 degrees cooler.
Max humidity........50-60% near 5000 feet
57-67% near 8000 feet.
24 hr trend......23% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
Mixing Height.......8000 ft AGL until 2000, then 2000 ft AGL.
Transport Winds.....Southwest 5 mph.
Clearing Index......1050 until 2000, then less than 500.
.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Isolated showers and
thunderstorms until 1200. Scattered showers and
thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....77-87 F near 5000 feet
67-77 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........17-27%.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................20 percent.
Mixing Height.......3000 ft AGL until 1100, then 10500 ft AGL.
Transport Winds.....Southwest 5 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 5000 feet,
isolated showers and thunderstorms until 2400.
near 8000 feet, isolated thunderstorms until
2400. Isolated showers.
Chc of lightning....20 percent.
Min temperature.....54-64 F near 5000 feet
48-58 F near 8000 feet.
24 hr trend......1 degree warmer.
Max humidity........42-52%.
24 hr trend......8% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
Mixing Height.......6500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Northwest 5 mph.
Clearing Index......1000 until 1900. Less than 500 after 2000.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Isolated showers and
thunderstorms after 1200.
Chc of lightning....10 percent.
Max temperature.....78-88 F near 5000 feet
68-78 F near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........12-17%.
24 hr trend......7% 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.......3000 ft AGL until 1000. 13000 ft AGL after
1200.
Transport Winds.....Southwest 5 mph until 1200, then 10 to 15 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 56-66. Highs 83-93. Winds less than 15 mph.
.TUESDAY...Clear. Lows 57-67. Highs 86-96. Winds less than
15 mph.
.WEDNESDAY...Clear. Lows 59-69. Highs 88-98. Winds less than
15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 61-71. Highs 88-98.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 61-71. Highs 86-96.
$$
UTZ487-161200-
Book Cliffs-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (60-70%) until 2400, then partly
cloudy (40-50%). Near 5000 feet, scattered
showers and thunderstorms until 2400. Near 8000
feet, scattered showers and isolated
thunderstorms until 2400. Isolated showers
after 2400.
Chc of lightning....50 percent.
Min temperature.....54-64 F near 5000 feet
48-58 F near 8000 feet.
24 hr trend......3 degrees cooler.
Max humidity........50-60% near 5000 feet
57-72% near 8000 feet.
24 hr trend......15% wetter.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................20 percent.
Mixing Height.......5000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000. Less than 500 after 2100.
.SATURDAY...
Sky/weather.........Near 5000 feet, mostly sunny (20-30%) until
1200, then partly cloudy (50-60%). 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....40 percent.
Max temperature.....75-85 F near 5000 feet
71-81 F near 8000 feet.
24 hr trend......1 degree warmer.
Min humidity........15-25%.
24 hr trend......3% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 20 mph in the afternoon.
CWR.................20 percent.
Mixing Height.......2000 ft AGL until 1000, then 10500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1200.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 5000 feet,
isolated showers and thunderstorms until 2400.
near 8000 feet, scattered showers and isolated
thunderstorms until 2400.
Chc of lightning....20 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%.
24 hr trend......6% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................10 percent.
Mixing Height.......8500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Clearing Index......1000 until 1900. Less than 500 after 2000.
.SUNDAY...
Sky/weather.........Mostly sunny (20-30%). Near 8000 feet,
isolated showers after 1200.
Chc of lightning....0 percent.
Max temperature.....79-89 F near 5000 feet
72-82 F near 8000 feet.
24 hr trend......Unchanged.
Min humidity........10-15%.
24 hr trend......7% 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. 12500 ft AGL after
1200.
Transport Winds.....Southwest 5 mph until 1200, then 10 to 15 mph.
Clearing Index......Less than 500 until 1000. 1050 after 1100.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 55-65. Highs 85-95. Winds less than 15 mph.
.TUESDAY...Clear. Lows 56-66. Highs 88-98. Winds less than
15 mph.
.WEDNESDAY...Clear. Isolated showers and thunderstorms . Lows
58-68. Highs 89-99. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
6000 feet and scattered showers and isolated thunderstorms near
8000 feet. Lows 60-70. Highs 89-99.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 60-70. Highs 88-98.
$$
UTZ490-161200-
Colorado River Basin-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Near 5000 feet, partly cloudy (40-50%). Near
7000 feet, mostly cloudy (60-70%) until 2400,
then partly cloudy (40-50%). Scattered showers
and isolated thunderstorms until 2400. Isolated
showers after 2400.
Chc of lightning....20 percent.
Min temperature.....58-68 F near 5000 feet
52-62 F near 7000 feet.
24 hr trend......6 degrees cooler.
Max humidity........46-56% near 5000 feet
52-62% near 7000 feet.
24 hr trend......16% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
Mixing Height.......7500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 10 to 15 mph until 2400, then southeast 5
mph.
Clearing Index......1000 until 2000, then less than 500.
.SATURDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly
cloudy (40-50%). Isolated showers and
thunderstorms until 1200. Scattered showers and
thunderstorms after 1200.
Chc of lightning....30 percent.
Max temperature.....85-95 F near 5000 feet
74-84 F near 7000 feet.
24 hr trend......3 degrees warmer.
Min humidity........13-23%.
24 hr trend......5% drier.
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, then 11500 ft AGL.
Transport Winds.....Southeast 5 mph until 1200, then southwest.
Clearing Index......Less than 500 until 1200. 1050 after 1300.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....20 percent.
Min temperature.....60-70 F near 5000 feet
54-64 F near 7000 feet.
24 hr trend......Unchanged.
Max humidity........34-44%.
24 hr trend......11% drier.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
Mixing Height.......9500 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then south.
Clearing Index......950 until 2000, then less than 500.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Near 7000 feet,
isolated showers after 1200.
Chc of lightning....0 percent.
Max temperature.....87-97 F near 5000 feet
75-85 F near 7000 feet.
24 hr trend......Unchanged.
Min humidity........10-15%.
24 hr trend......5% drier.
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming
upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent.
Mixing Height.......2500 ft AGL until 1000. 12000 ft AGL after
1200.
Transport Winds.....Southeast 5 mph until 1200, then southwest 10
to 15 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1200.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 60-70. Highs 89-99. Winds less than 15 mph.
.TUESDAY...Clear. Isolated showers near 5000 feet. Lows 61-71.
Highs 92-102. Winds less than 15 mph.
.WEDNESDAY...Clear. Isolated showers and thunderstorms . Lows
63-73. Highs 94-104. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms .
Lows 65-75. Highs 94-104.
.FRIDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 65-75. Highs 93-103.
$$
UTZ491-161200-
Southeast Utah-
154 PM MDT Fri Aug 15 2025
.TONIGHT...
Sky/weather.........Partly cloudy (40-50%). Near 5000 feet,
isolated showers and thunderstorms until 2400.
near 8000 feet, scattered showers and isolated
thunderstorms until 2400, isolated showers after
2400.
Chc of lightning....20 percent.
Min temperature.....58-68 F near 5000 feet
49-59 F near 8000 feet.
24 hr trend......7 degrees cooler.
Max humidity........53-63%.
24 hr trend......19% wetter.
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming
downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent.
Mixing Height.......5000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph until 2400, then southeast.
Clearing Index......800 until 2000, then less than 500.
.SATURDAY...
Sky/weather.........Near 5000 feet, partly cloudy (30-40%) after
1200, isolated showers until 1200. Isolated
thunderstorms. Scattered showers after 1200.
Mostly sunny (20-30%) until 1200. Near 8000
feet, mostly cloudy (60-70%) after 1200,
isolated showers and thunderstorms until 1200,
then scattered showers and thunderstorms.
Chc of lightning....20 percent.
Max temperature.....83-93 F near 5000 feet
69-79 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........15-25% near 5000 feet
21-31% near 8000 feet.
24 hr trend......5% drier.
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, then 11000 ft AGL.
Transport Winds.....Southeast 5 mph until 1200, then west.
Clearing Index......Less than 500 until 1200. 1050 after 1400.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear (20-30%). Isolated showers and
thunderstorms until 2400.
Chc of lightning....10 percent.
Min temperature.....60-70 F near 5000 feet
52-62 F near 8000 feet.
24 hr trend......1 degree warmer.
Max humidity........42-52%.
24 hr trend......10% 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, then 1500 ft AGL.
Transport Winds.....West 5 mph.
Clearing Index......950 until 2000, then less than 500.
.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). Near 8000 feet,
isolated showers and thunderstorms after 1200.
Chc of lightning....0 percent.
Max temperature.....85-95 F near 5000 feet
71-81 F near 8000 feet.
24 hr trend......3 degrees warmer.
Min humidity........11-21%.
24 hr trend......4% 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. 11500 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...
.MONDAY...Clear. Lows 58-68. Highs 89-99. Winds less than 15 mph.
.TUESDAY...Clear. Isolated showers and thunderstorms . Lows
59-69. Highs 92-102. Winds less than 15 mph.
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms
near 5000 feet and scattered showers and thunderstorms near
8000 feet. Lows 61-71. Highs 93-103. Winds less than 15 mph.
.THURSDAY...Mostly clear. Isolated showers and thunderstorms near
5000 feet and scattered showers and thunderstorms near 8000 feet
. Lows 63-73. Highs 93-103.
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms near
5000 feet and scattered showers and thunderstorms near 8000 feet
. Lows 63-73. Highs 92-102.
$$