COZ205-052330-
COZ205-052330-
Colorado River Headwaters-
123 AM MDT Fri Jun 5 2026

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
123 AM MDT Fri Jun 5 2026

...FIRE WEATHER WATCH IN EFFECT SATURDAY AFTERNOON THROUGH
SATURDAY EVENING FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR
COLORADO FIRE WEATHER ZONES 200, 202, 203, 207, 290 AND 292, AS
WELL AS UTAH FIRE WEATHER ZONES 486, 487, 490 AND 491... 

.DISCUSSION... Despite single digit afternoon RH values for many
areas today, critical fire weather conditions will only be 
localized thanks to decreased wind gusts. However, increased wind 
gusts on Saturday will allow for more widespread critical fire 
weather conditions, and so Fire Weather Watches are in effect for 
all zones near the Utah and Colorado border with critical fuels. 
Widespread hot, dry, and windy conditions look to persist into at 
least mid next week. 

...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...


.TODAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers after 
                    1200. 
Chc of lightning....0 percent. 
Max temperature.....76-86 F. 
Min humidity........10-15%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 25 mph. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 30 mph decreasing to 15 to 20 mph in 
                    the afternoon. 
Mixing Height.......1000 ft AGL until 0900. 13000 ft AGL after 
                    1100. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.TONIGHT...
Sky/weather.........Mostly clear (20-30%). 
Chc of lightning....0 percent. 
Min temperature.....48-58 F. 
Max humidity........40-50%. 
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.......10000 ft AGL until 2000, then 500 ft AGL. 
Transport Winds.....Northwest 5 to 10 mph until 2400, then 
                    southeast. 
Smoke dispersal.....Good until 2100, then poor. 

.SATURDAY...
Sky/weather.........Mostly sunny (10-20%) until 1200, then partly 
                    cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....79-89 F. 
Min humidity........10-15%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 10 to 15 mph. 
Mixing Height.......1000 ft AGL until 0900. 14000 ft AGL after 
                    1100. 
Transport Winds.....Southwest 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Mostly clear. Isolated showers. Lows 45-55. Highs
73-83. Southwest winds 10 to 20 mph with gusts to  40 mph. 
.MONDAY...Mostly clear. Isolated showers. Lows 43-53. Highs
73-83. Southwest winds 10 to 20 mph with gusts to  40 mph. 
.TUESDAY...Breezy. Mostly clear. Lows 43-53. Highs 75-85.
Southwest winds 15 to 25 mph with gusts to  50 mph. 
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 44-54. Highs 74-84. 
.THURSDAY...Mostly clear. Isolated showers. Lows 43-53. Highs
72-82.