772
FNUS55 KGJT 170715
FWFGJT
FIRE WEATHER PLANNING FORECAST FOR WRN COLORADO AND ERN UTAH
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
115 AM MDT WED SEP 17 2025
DISCUSSION
TODAY SHOWERS AND THUNDERSTORMS ARE POSSIBLE IN
THE AFTERNOON, MOSTLY ALONG THE HIGHER TERRAIN NORTH OF I-70.
STRONG GUSTS ARE POSSIBLE AROUND ANY SHOWERS OR THUNDERSTORMS.
DRIER AIR MOVES IN THROUGH THE REMAINDER OF THE WORKWEEK, BUT
MOISTURE LOOKS TO RETURN AGAIN OVER THE WEEKEND.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
..THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL
COZ200-172315-
LITTLE SNAKE FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%). SCATTERED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....30 PERCENT.
MAX TEMPERATURE.....61-71 F NEAR 6000 FEET
50-60 F NEAR 8000 FEET.
MIN HUMIDITY........27-37% NEAR 6000 FEET
36-46% NEAR 8000 FEET.
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....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). NEAR 6000 FEET,
ISOLATED SHOWERS UNTIL 2400. NEAR 8000 FEET,
ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....37-47 F.
MAX HUMIDITY........80-95% NEAR 6000 FEET
72-87% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....65-75 F NEAR 6000 FEET
55-65 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.................0 PERCENT.
15K FT MSL WINDS....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 38-48. HIGHS 70-80. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 43-53. HIGHS 72-82. WINDS LESS
THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 71-81. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42-52. HIGHS 72-82.
TUESDAY
MOSTLY CLEAR. LOWS 42-52. HIGHS 76-86.
COZ201-172315-
ROUTT FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%) UNTIL 1200, THEN PARTLY
CLOUDY (40-50%). SCATTERED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....53-63 F.
MIN HUMIDITY........35-45%.
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 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 1200, THEN NORTHWEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%). ISOLATED THUNDERSTORMS
UNTIL 2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....20 PERCENT.
MIN TEMPERATURE.....31-41 F.
MAX HUMIDITY........78-93%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
15K FT MSL WINDS....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH UNTIL 2400, THEN NORTHEAST.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....55-65 F.
MIN HUMIDITY........27-37%.
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 7000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
MOSTLY CLEAR. LOWS 35-45. HIGHS 62-72. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 61-71. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED THUNDERSTORMS AND ISOLATED
SHOWERS. LOWS 40-50. HIGHS 60-70. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 62-72.
TUESDAY
CLEAR. LOWS 38-48. HIGHS 67-77.
COZ202-172315-
WHITE RIVER FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY SUNNY (20-30%) UNTIL
1200, THEN PARTLY CLOUDY (30-40%). NEAR 8000
FEET, MOSTLY SUNNY (20-30%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....63-73 F NEAR 6000 FEET
55-65 F NEAR 8000 FEET.
MIN HUMIDITY........24-34% NEAR 6000 FEET
30-40% 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 15 TO 20 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....36-46 F.
MAX HUMIDITY........80-95% NEAR 6000 FEET
68-83% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....63-73 F NEAR 6000 FEET
56-66 F NEAR 8000 FEET.
MIN HUMIDITY........19-29%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTH.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 39-49. HIGHS 71-81. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 43-53. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 71-81. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 8000 FEET. LOWS
42-52. HIGHS 71-81.
TUESDAY
MOSTLY CLEAR. LOWS 42-52. HIGHS 76-86.
COZ203-172315-
LOWER COLORADO RIVER-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....68-78 F NEAR 6000 FEET
60-70 F NEAR 8000 FEET.
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.......3500 FT AGL UNTIL 1100, THEN 10500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....43-53 F NEAR 6000 FEET
36-46 F NEAR 8000 FEET.
MAX HUMIDITY........55-70%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......8000 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....68-78 F NEAR 6000 FEET
60-70 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....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTH.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 73-83. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 49-59. HIGHS 73-83. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
49-59. HIGHS 73-83. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 47-57. HIGHS
74-84.
TUESDAY
MOSTLY CLEAR. LOWS 48-58. HIGHS 77-87.
COZ205-172315-
COLORADO RIVER HEADWATERS-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....60-70 F.
MIN HUMIDITY........24-34%.
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 9500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 1200, THEN 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%). ISOLATED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....20 PERCENT.
MIN TEMPERATURE.....34-44 F.
MAX HUMIDITY........74-89%.
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 15 TO 20 MPH.
MIXING HEIGHT.......5500 FT AGL UNTIL 2000, THEN 2500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....60-70 F.
MIN HUMIDITY........22-32%.
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.......7500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 64-74. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 63-73. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED THUNDERSTORMS AND ISOLATED
SHOWERS. LOWS 40-50. HIGHS 62-72. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 64-74.
TUESDAY
CLEAR. LOWS 39-49. HIGHS 68-78.
COZ290-172315-
PARADOX VALLEY FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 6000 FEET
61-71 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 20 TO 25 MPH DECREASING TO 15 TO 20 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 10000 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1500.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....41-51 F NEAR 6000 FEET
36-46 F NEAR 8000 FEET.
MAX HUMIDITY........46-56% NEAR 6000 FEET
56-66% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......8000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
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....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 7000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 46-56. HIGHS 74-84. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 49-59. HIGHS 75-85. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
50-60. HIGHS 75-85. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48-58. HIGHS 76-86.
TUESDAY
MOSTLY CLEAR. LOWS 49-59. HIGHS 79-89.
COZ291-172315-
NORTHERN SAN JUAN FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....58-68 F.
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....WEST 20 TO 30 MPH DECREASING TO 20 TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN WEST 15
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....36-46 F.
MAX HUMIDITY........55-70%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......8500 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....60-70 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 15 TO 20 MPH DECREASING TO 5 TO 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 7500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 65-75. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 41-51. HIGHS 64-74. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
41-51. HIGHS 65-75. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 66-76.
TUESDAY
MOSTLY CLEAR. LOWS 41-51. HIGHS 70-80.
COZ292-172315-
NORTH FORK FORECAST AREA-
115 AM MDT WED SEP 17 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........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....WEST 20 TO 30 MPH DECREASING TO 20 TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL UNTIL 1100, THEN 10500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 1200, THEN 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200. VERY GOOD AFTER 1500.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....38-48 F NEAR 6000 FEET
35-45 F NEAR 8000 FEET.
MAX HUMIDITY........57-72%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......7500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 6000 FEET
60-70 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....NORTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 44-54. HIGHS 74-84. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 48-58. HIGHS 74-84. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
48-58. HIGHS 74-84. 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 75-85.
TUESDAY
CLEAR. LOWS 47-57. HIGHS 78-88.
COZ293-172315-
GUNNISON BASIN FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AFTER
1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........18-28%.
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 25 TO 35 MPH DECREASING TO 20 TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 10500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 1200, THEN 15 TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....33-43 F.
MAX HUMIDITY........65-80%.
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 15 TO 20 MPH.
MIXING HEIGHT.......8500 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........18-28%.
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.......3000 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 34-44. HIGHS 65-75. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 38-48. HIGHS 64-74. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 64-74. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 66-76.
TUESDAY
MOSTLY CLEAR. LOWS 38-48. HIGHS 69-79.
COZ207-172315-
SOUTHWEST COLORADO LOWER FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....73-83 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....WEST 20 TO 25 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 10000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH UNTIL 1200, THEN WEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........44-54%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 20 TO 30 MPH.
MIXING HEIGHT.......10000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....72-82 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.......2500 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 1200, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 74-84. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 47-57. HIGHS
75-85. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 76-86. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46-56. HIGHS 77-87.
TUESDAY
CLEAR. LOWS 46-56. HIGHS 79-89.
COZ294-172315-
SOUTHWEST COLORADO UPPER WEST FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....62-72 F.
MIN HUMIDITY........11-21%.
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....WEST 20 TO 30 MPH DECREASING TO 20 TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 10000 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........CLEAR (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....38-48 F.
MAX HUMIDITY........52-62%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 25 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 20 TO 25 MPH INCREASING TO 25 TO 35
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......8000 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....62-72 F.
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 20 TO 25 MPH BECOMING NORTH 5 TO 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 7500 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 65-75. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 40-50. HIGHS 65-75. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
39-49. HIGHS 66-76. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 39-49. HIGHS 68-78.
TUESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 69-79.
COZ295-172315-
SOUTHWEST COLORADO UPPER EAST FORECAST AREA-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....67-77 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 20 TO 30 MPH DECREASING TO 20 TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 11500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....37-47 F.
MAX HUMIDITY........47-57%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....NORTHWEST 15 TO 20 MPH INCREASING TO WEST 20 TO
30 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......8000 FT AGL UNTIL 1900, THEN 2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH UNTIL 2400, THEN NORTH.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....66-76 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 20 TO 25 MPH DECREASING TO 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......2500 FT AGL UNTIL 1000, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH UNTIL 1200, THEN WEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
37-47. HIGHS 66-76. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 39-49. HIGHS 66-76. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
38-48. HIGHS 68-78. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
39-49. HIGHS 70-80.
TUESDAY
MOSTLY CLEAR. LOWS 39-49. HIGHS 70-80.
UTZ485-172315-
EASTERN ASHLEY NATIONAL FOREST-
115 AM MDT WED SEP 17 2025
TODAY
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.....56-66 F NEAR 7000 FEET
45-55 F NEAR 10000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........34-44% NEAR 7000 FEET
44-54% NEAR 10000 FEET.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................20 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 7500 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1300. 950 AFTER 1500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....37-47 F NEAR 7000 FEET
26-36 F NEAR 10000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........67-82% NEAR 7000 FEET
80-95% NEAR 10000 FEET.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH.
CLEARING INDEX......700 UNTIL 1900, THEN LESS THAN 500.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....60-70 F NEAR 7000 FEET
51-61 F NEAR 10000 FEET.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........25-35% NEAR 7000 FEET
36-46% NEAR 10000 FEET.
24 HR TREND......14% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN WEST.
CLEARING INDEX......LESS THAN 500.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 44-54. HIGHS 65-75. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 44-54. HIGHS 65-75. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 43-53. HIGHS 66-76.
TUESDAY
MOSTLY CLEAR. LOWS 43-53. HIGHS 69-79.
UTZ486-172315-
EASTERN UINTA BASIN-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%). NEAR 5000 FEET, ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200. NEAR 8000
FEET, SCATTERED SHOWERS AND THUNDERSTORMS
AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....61-71 F NEAR 5000 FEET
51-61 F NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........28-38% NEAR 5000 FEET
35-45% NEAR 8000 FEET.
24 HR TREND......4% 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 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1300. 950 AFTER 1500.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....38-48 F NEAR 5000 FEET
31-41 F NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........60-75% NEAR 5000 FEET
66-81% NEAR 8000 FEET.
24 HR TREND......16% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900, THEN 2000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
CLEARING INDEX......700 UNTIL 1900, THEN LESS THAN 500.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....65-75 F NEAR 5000 FEET
54-64 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........22-32%.
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.......3500 FT AGL UNTIL 1200, THEN 6500 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
CLEARING INDEX......LESS THAN 500.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 44-54. HIGHS 68-78. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 47-57. HIGHS 70-80. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 48-58. HIGHS 70-80. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46-56. HIGHS 70-80.
TUESDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 73-83.
UTZ487-172315-
BOOK CLIFFS-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....66-76 F NEAR 5000 FEET
60-70 F NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........19-29%.
24 HR TREND......5% 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 1100, THEN 9000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1200. 1000 AFTER 1400.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%). NEAR 8000 FEET,
ISOLATED SHOWERS UNTIL 2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....41-51 F.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........66-81%.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900. 1500 FT AGL AFTER 2000.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
CLEARING INDEX......800 UNTIL 1900. LESS THAN 500 AFTER 2000.
THURSDAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....66-76 F NEAR 5000 FEET
60-70 F NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........17-27%.
24 HR TREND......1% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 5000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 MPH.
CLEARING INDEX......500.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 44-54. HIGHS 72-82. WINDS LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 47-57. HIGHS 73-83. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
47-57. HIGHS 72-82. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 73-83.
TUESDAY
MOSTLY CLEAR. LOWS 47-57. HIGHS 76-86.
UTZ490-172315-
COLORADO RIVER BASIN-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....75-85 F NEAR 5000 FEET
63-73 F NEAR 7000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........12-22%.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 10500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1300. 1050 AFTER 1500.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%). NEAR 7000 FEET,
ISOLATED SHOWERS UNTIL 2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....47-57 F NEAR 5000 FEET
41-51 F NEAR 7000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........46-56%.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......9500 FT AGL UNTIL 1900. 1500 FT AGL AFTER 2000.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
CLEARING INDEX......1050 UNTIL 1900, THEN LESS THAN 500.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....74-84 F NEAR 5000 FEET
63-73 F NEAR 7000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........14-24%.
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.......7000 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
CLEARING INDEX......500.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. LOWS 50-60. HIGHS 76-86. WINDS LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 5000 FEET AND
ISOLATED SHOWERS AND THUNDERSTORMS NEAR 7000 FEET. LOWS 53-63.
HIGHS 77-87. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS . LOWS
53-63. HIGHS 77-87. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 53-63. HIGHS 78-88.
TUESDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 80-90.
UTZ491-172315-
SOUTHEAST UTAH-
115 AM MDT WED SEP 17 2025
TODAY
SKY/WEATHER.........SUNNY (0-10%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....78-88 F NEAR 5000 FEET
61-71 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........9-14%.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 20 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 10500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1100. 1050 AFTER 1300.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....48-58 F NEAR 5000 FEET
41-51 F NEAR 8000 FEET.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........37-47% NEAR 5000 FEET
44-54% NEAR 8000 FEET.
24 HR TREND......3% 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 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
CLEARING INDEX......1050 UNTIL 1900, THEN LESS THAN 500.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....75-85 F NEAR 5000 FEET
60-70 F NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........12-17% NEAR 5000 FEET
16-26% NEAR 8000 FEET.
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.......2500 FT AGL UNTIL 1100, THEN 8500 FT AGL.
TRANSPORT WINDS.....NORTH 5 MPH.
CLEARING INDEX......600.
FORECAST FOR DAY 3 THROUGH 7
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 50-60. HIGHS 76-86. WINDS LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 52-62. HIGHS 77-87. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 5000 FEET AND
ISOLATED SHOWERS AND THUNDERSTORMS NEAR 8000 FEET. LOWS 52-62.
HIGHS 79-89. WINDS LESS THAN 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 79-89.
TUESDAY
CLEAR. LOWS 52-62. HIGHS 81-91.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page