955
FNUS55 KGJT 180741
FWFGJT
FIRE WEATHER PLANNING FORECAST FOR WRN COLORADO AND ERN UTAH
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
141 AM MDT THU SEP 18 2025
DISCUSSION
A QUICK TRANSITORY RIDGE WILL MOVE OVERHEAD TODAY BRINGING CLEAR
SKIES AND DRY CONDITIONS. SOUTHWESTERLY FLOW THEN SETS UP AHEAD OF
A SHORTWAVE TROUGH CAUSING MOISTURE TO INCREASE ALLOWING SOME
SHOWERS AND A FEW STORMS TO FIRE OVER SOUTHERN PORTIONS OF THE
CWA. HEADING INTO THE WEEKEND, CONVECTION WILL SPREAD TO NORTHERN
AREAS. DRY CONDITIONS AND WARM AIR MOVE BACK IN FOR THE NEXT WORK
WEEK. CRITICAL FIRE WEATHER CONDITIONS ARE NOT EXPECTED.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
..THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL
COZ200-182345-
LITTLE SNAKE FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....66-76 F NEAR 6000 FEET
56-66 F NEAR 8000 FEET.
MIN HUMIDITY........14-24% NEAR 6000 FEET
20-30% 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....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN WEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....43-53 F.
MAX HUMIDITY........47-57% NEAR 6000 FEET
37-47% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 6000 FEET
59-69 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....WEST 15 TO 20 MPH.
MIXING HEIGHT.......3500 FT AGL UNTIL 1200, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 44-54. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 69-79. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
41-51. HIGHS 68-78. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 37-47. HIGHS 69-79.
WEDNESDAY
MOSTLY CLEAR. LOWS 38-48. HIGHS 73-83.
COZ201-182345-
ROUTT FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....57-67 F.
MIN HUMIDITY........20-30%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....38-48 F.
MAX HUMIDITY........43-53%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH INCREASING TO 15 TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH UNTIL 2400, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....60-70 F.
MIN HUMIDITY........15-25%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN WEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 41-51. HIGHS 60-70. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 58-68. WINDS LESS THAN 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 57-67. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 33-43. HIGHS 61-71.
WEDNESDAY
MOSTLY CLEAR. LOWS 36-46. HIGHS 65-75.
COZ202-182345-
WHITE RIVER FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....63-73 F NEAR 6000 FEET
58-68 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.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....41-51 F.
MAX HUMIDITY........44-54% NEAR 6000 FEET
31-41% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........NEAR 6000 FEET, PARTLY CLOUDY (50-60%). NEAR
8000 FEET, PARTLY CLOUDY (40-50%) UNTIL 1200,
THEN MOSTLY CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 6000 FEET
60-70 F NEAR 8000 FEET.
MIN HUMIDITY........12-22%.
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.......2000 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS NEAR 6000 FEET AND SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS NEAR 8000 FEET. LOWS 44-54. HIGHS 71-81. WINDS LESS
THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
6000 FEET AND SCATTERED SHOWERS AND THUNDERSTORMS NEAR 8000 FEET.
LOWS 44-54. HIGHS 69-79. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
42-52. HIGHS 68-78. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 38-48. HIGHS 70-80.
WEDNESDAY
MOSTLY CLEAR. LOWS 39-49. HIGHS 73-83.
COZ203-182345-
LOWER COLORADO RIVER-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 6000 FEET
61-71 F NEAR 8000 FEET.
MIN HUMIDITY........12-22%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200. FAIR AFTER 1500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....48-58 F NEAR 6000 FEET
42-52 F NEAR 8000 FEET.
MAX HUMIDITY........33-43%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO SOUTHWEST 10 TO
15 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (50-60%) UNTIL 1200, THEN MOSTLY
CLOUDY (60-70%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 6000 FEET
62-72 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.......3500 FT AGL UNTIL 1200, THEN 6500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 49-59. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
48-58. HIGHS 71-81. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 71-81. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 44-54. HIGHS 73-83.
WEDNESDAY
MOSTLY CLEAR. LOWS 46-56. HIGHS 75-85.
COZ205-182345-
COLORADO RIVER HEADWATERS-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....61-71 F.
MIN HUMIDITY........16-26%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....41-51 F.
MAX HUMIDITY........43-53%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO 15 TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......6000 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 2400, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%) UNTIL 1200, THEN MOSTLY
CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....65-75 F.
MIN HUMIDITY........13-23%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 15 TO 20 MPH.
MIXING HEIGHT.......3500 FT AGL UNTIL 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 1200, THEN WEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 40-50. HIGHS 61-71. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 60-70. WINDS LESS THAN 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 60-70. WINDS LESS THAN 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 34-44. HIGHS 63-73.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 36-46. HIGHS
66-76.
COZ290-182345-
PARADOX VALLEY FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....71-81 F NEAR 6000 FEET
62-72 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.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 9000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....46-56 F NEAR 6000 FEET
42-52 F NEAR 8000 FEET.
MAX HUMIDITY........26-36% NEAR 6000 FEET
32-42% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......7000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 2400, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....68-78 F NEAR 6000 FEET
61-71 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....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 25
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
NEAR 6000 FEET AND SCATTERED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 49-59. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
49-59. HIGHS 73-83. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
48-58. HIGHS 74-84. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 45-55. HIGHS 75-85.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 8000 FEET. LOWS
46-56. HIGHS 78-88.
COZ291-182345-
NORTHERN SAN JUAN FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....61-71 F.
MIN HUMIDITY........13-23%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH DECREASING TO 5 TO 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....41-51 F.
MAX HUMIDITY........35-45%.
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 INCREASING TO 15 TO 20
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6000 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 2400, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....59-69 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.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 7000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900, THEN FAIR UNTIL 1200, THEN
GOOD UNTIL 1500, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 40-50. HIGHS 62-72. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
40-50. HIGHS 63-73. WINDS LESS THAN 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
39-49. HIGHS 63-73. WINDS LESS THAN 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 38-48. HIGHS 66-76.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 40-50. HIGHS 68-78.
COZ292-182345-
NORTH FORK FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 6000 FEET
61-71 F NEAR 8000 FEET.
MIN HUMIDITY........12-22%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200. FAIR AFTER 1500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....43-53 F NEAR 6000 FEET
41-51 F NEAR 8000 FEET.
MAX HUMIDITY........36-46%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO SOUTHWEST 10 TO
15 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 2400, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....71-81 F NEAR 6000 FEET
61-71 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.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN WEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 48-58. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 73-83. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
46-56. HIGHS 72-82. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 43-53. HIGHS 74-84.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 8000 FEET. LOWS
45-55. HIGHS 77-87.
COZ293-182345-
GUNNISON BASIN FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....65-75 F.
MIN HUMIDITY........14-24%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......3500 FT AGL UNTIL 1100, THEN 9000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....40-50 F.
MAX HUMIDITY........45-55%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO 15 TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (50-60%) UNTIL 1200, THEN MOSTLY
CLOUDY (70-80%). ISOLATED SHOWERS AFTER 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........17-27%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 7500 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
SATURDAY
PARTLY CLOUDY. SCATTERED THUNDERSTORMS AND ISOLATED
SHOWERS. LOWS 38-48. HIGHS 62-72. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 63-73. WINDS LESS THAN 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 63-73. WINDS LESS THAN 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 34-44. HIGHS 65-75.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 36-46. HIGHS
68-78.
COZ207-182345-
SOUTHWEST COLORADO LOWER FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....71-81 F.
MIN HUMIDITY........10-15%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 20 TO 25 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 9500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (50-60%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....48-58 F.
MAX HUMIDITY........32-42%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......7500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....70-80 F.
MIN HUMIDITY........21-31%.
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 INCREASING TO 20 TO 25
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH UNTIL 1200, THEN
SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 73-83. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 45-55. HIGHS
74-84. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 46-56. HIGHS
75-85. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 43-53. HIGHS 76-86.
WEDNESDAY
MOSTLY CLEAR. LOWS 44-54. HIGHS 77-87.
COZ294-182345-
SOUTHWEST COLORADO UPPER WEST FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....63-73 F.
MIN HUMIDITY........12-17%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 20 TO 25 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH UNTIL 1200, THEN
NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (50-60%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....43-53 F.
MAX HUMIDITY........34-44%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 2400, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). SCATTERED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....30 PERCENT.
MAX TEMPERATURE.....60-70 F.
MIN HUMIDITY........23-33%.
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 INCREASING TO 20 TO 25
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 6500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 63-73. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
39-49. HIGHS 64-74. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 65-75. WINDS LESS THAN 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 37-47. HIGHS 67-77.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 38-48. HIGHS 68-78.
COZ295-182345-
SOUTHWEST COLORADO UPPER EAST FORECAST AREA-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....66-76 F.
MIN HUMIDITY........13-23%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 10000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 1200, THEN WEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....40-50 F.
MAX HUMIDITY........51-61%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 5 TO 10 MPH INCREASING TO 15 TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). SCATTERED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....30 PERCENT.
MAX TEMPERATURE.....63-73 F.
MIN HUMIDITY........30-40%.
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....WEST 15 TO 20 MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 38-48. HIGHS 64-74. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 65-75. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 68-78. WINDS LESS THAN 15 MPH.
TUESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 68-78.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 38-48. HIGHS 69-79.
UTZ485-182345-
EASTERN ASHLEY NATIONAL FOREST-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....63-73 F NEAR 7000 FEET
53-63 F NEAR 10000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........22-32% NEAR 7000 FEET
30-40% NEAR 10000 FEET.
24 HR TREND......12% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
CLEARING INDEX......500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....43-53 F NEAR 7000 FEET
33-43 F NEAR 10000 FEET.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........46-56% NEAR 7000 FEET
56-66% NEAR 10000 FEET.
24 HR TREND......32% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
CLEARING INDEX......LESS THAN 500.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%) UNTIL 1200, THEN MOSTLY
CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....65-75 F NEAR 7000 FEET
55-65 F NEAR 10000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........18-28%.
24 HR TREND......4% 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 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1200, THEN 650 UNTIL 1500,
THEN 1000 UNTIL 1600, THEN 650.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
NEAR 7000 FEET AND SCATTERED SHOWERS AND THUNDERSTORMS NEAR
10000 FEET. LOWS 44-54. HIGHS 64-74. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
7000 FEET AND SCATTERED SHOWERS AND THUNDERSTORMS NEAR 10000 FEET
. LOWS 43-53. HIGHS 62-72. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS . LOWS
41-51. HIGHS 62-72. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 39-49. HIGHS 64-74.
WEDNESDAY
MOSTLY CLEAR. LOWS 41-51. HIGHS 67-77.
UTZ486-182345-
EASTERN UINTA BASIN-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....66-76 F NEAR 5000 FEET
53-63 F NEAR 8000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........17-27%.
24 HR TREND......8% DRIER.
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 1200, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
CLEARING INDEX......LESS THAN 500 UNTIL 1300, THEN 550.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....43-53 F.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........38-48%.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 2400, THEN WEST.
CLEARING INDEX......LESS THAN 500.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%) UNTIL 1200, THEN MOSTLY
CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 5000 FEET
55-65 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........15-25%.
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.......3500 FT AGL UNTIL 1200, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1200, THEN 700 UNTIL 1500,
THEN 1050 UNTIL 1600, THEN 750.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 48-58. HIGHS 69-79. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 67-77. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 6000 FEET AND
ISOLATED SHOWERS AND THUNDERSTORMS NEAR 8000 FEET. LOWS 45-55.
HIGHS 68-78. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 43-53. HIGHS 68-78.
WEDNESDAY
MOSTLY CLEAR. LOWS 44-54. HIGHS 71-81.
UTZ487-182345-
BOOK CLIFFS-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....67-77 F NEAR 5000 FEET
62-72 F NEAR 8000 FEET.
24 HR TREND......2 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.................0 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 1200, THEN NORTHWEST.
CLEARING INDEX......LESS THAN 500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....48-58 F.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........34-44%.
24 HR TREND......25% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 2400, THEN SOUTH.
CLEARING INDEX......LESS THAN 500.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 5000 FEET
62-72 F NEAR 8000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........13-23%.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 20 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......1500 FT AGL UNTIL 1100. 8500 FT AGL AFTER 1200.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1100. 800 AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
NEAR 6000 FEET AND SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
NEAR 8000 FEET. LOWS 47-57. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 70-80. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 6000 FEET AND
ISOLATED SHOWERS AND THUNDERSTORMS NEAR 8000 FEET. LOWS 46-56.
HIGHS 70-80. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 43-53. HIGHS 71-81.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 8000 FEET. LOWS
44-54. HIGHS 73-83.
UTZ490-182345-
COLORADO RIVER BASIN-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....76-86 F NEAR 5000 FEET
64-74 F NEAR 7000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........12-17%.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 7500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH UNTIL 1200, THEN
NORTHWEST.
CLEARING INDEX......LESS THAN 500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....51-61 F.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........26-36%.
24 HR TREND......12% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH.
CLEARING INDEX......LESS THAN 500.
FRIDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY CLOUDY (60-70%) UNTIL
1200, THEN PARTLY CLOUDY (50-60%). NEAR 7000
FEET, MOSTLY CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....75-85 F NEAR 5000 FEET
64-74 F NEAR 7000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........14-24%.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......3000 FT AGL UNTIL 1200, THEN 7000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
CLEARING INDEX......LESS THAN 500 UNTIL 1200, THEN 650.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
NEAR 5000 FEET AND SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
NEAR 7000 FEET. LOWS 53-63. HIGHS 76-86. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS . LOWS
53-63. HIGHS 76-86. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 7000 FEET. LOWS
52-62. HIGHS 76-86. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 49-59. HIGHS 76-86.
WEDNESDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 78-88.
UTZ491-182345-
SOUTHEAST UTAH-
141 AM MDT THU SEP 18 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....76-86 F NEAR 5000 FEET
62-72 F NEAR 8000 FEET.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........10-15%.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 1000, THEN 9000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
CLEARING INDEX......650.
TONIGHT
SKY/WEATHER.........NEAR 5000 FEET, PARTLY CLOUDY (50-60%). NEAR
8000 FEET, PARTLY CLOUDY (40-50%) UNTIL 2400,
THEN MOSTLY CLOUDY (60-70%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....54-64 F NEAR 5000 FEET
46-56 F NEAR 8000 FEET.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........28-38%.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......7500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 2400, THEN EAST.
CLEARING INDEX......500 UNTIL 1900, THEN LESS THAN 500.
FRIDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY CLOUDY (70-80%) UNTIL
1200, THEN PARTLY CLOUDY (50-60%), SCATTERED
SHOWERS. ISOLATED THUNDERSTORMS AFTER 1200.
NEAR 8000 FEET, MOSTLY CLOUDY (60-70%),
ISOLATED SHOWERS UNTIL 1200, SCATTERED SHOWERS
AND ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....74-84 F NEAR 5000 FEET
60-70 F NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........21-31%.
24 HR TREND......11% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................20 PERCENT.
MIXING HEIGHT.......3000 FT AGL UNTIL 1200, THEN 8500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CLEARING INDEX......LESS THAN 500 UNTIL 1100. 900 AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 52-62. HIGHS 76-86. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 51-61. HIGHS 77-87. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 52-62. HIGHS 77-87. WINDS LESS THAN 15 MPH.
TUESDAY
CLEAR. LOWS 49-59. HIGHS 78-88.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 8000 FEET. LOWS
50-60. HIGHS 79-89.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page