National Weather Service United States Department of Commerce

 

COZ200-021800-
COZ200-021800-
Little Snake Forecast Area-
800 PM MDT Fri Aug 1 2025

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah...UPDATED
National Weather Service Grand Junction CO
800 PM MDT Fri Aug 1 2025

...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 7 PM MDT SATURDAY
FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE
WEATHER ZONES 200, 202, 203, 207 AND 290, AS WELL AS UTAH FIRE
WEATHER ZONES 487, 490 AND 491... 

.DISCUSSION...Critical fire weather conditions are expected for 
the next several days amid a drying pattern. Critical fire weather
conditions become more widespread tomorrow as humidities drop and
gusts increase to over 30 mph in some locations. Thus, most zones
along the CO-UT border have been placed in Red Flag Warnings 
tomorrow. Scattered showers are anticipated again tomorrow, which
could bring wetting rain to some ongoing fires, though frequent 
lightning will pose a threat of new ignitions.

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


...RED FLAG WARNING IN EFFECT FROM 1 PM TO 7 PM MDT SATURDAY FOR
GUSTY WINDS, LOW HUMIDITY AND DRY FUELS...

.REST OF TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Areas of smoke after 
                    2400. 
Chc of lightning....0 percent. 
Min temperature.....54-64 F. 
Max humidity........39-49% near 6000 feet 
                    29-39% 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 15 to 20 mph. 
Mixing Height.......12500 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....West 5 to 10 mph until 2400, then southeast. 
Smoke dispersal.....Good until 2100, then poor. 

.SATURDAY...
Sky/weather.........Partly cloudy (30-40%). Near 6000 feet, areas 
                    of smoke until 1200, isolated showers and 
                    thunderstorms after 1200. Near 8000 feet, areas 
                    of smoke, isolated showers. Isolated 
                    thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....83-93 F near 6000 feet 
                    70-80 F near 8000 feet. 
Min humidity........7-12%. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 10 to 15 mph with gusts to 30 mph in 
                    the afternoon. 
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 20 to 25 mph. 
Mixing Height.......3000 ft AGL until 1000. 16000 ft AGL after 
                    1100. 
Transport Winds.....South 5 to 10 mph until 1200, then southwest 20 
                    to 25 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%). Near 8000 feet, 
                    isolated showers and thunderstorms until 2400. 
Chc of lightning....0 percent. 
Min temperature.....51-61 F. 
Max humidity........45-55% near 6000 feet 
                    35-45% near 8000 feet. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 25 mph in the evening. 
CWR.................0 percent. 
15K Ft MSL Winds....West 20 to 25 mph. 
Mixing Height.......12500 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....Northwest 10 to 15 mph until 2400, then north 5 
                    mph. 
Smoke dispersal.....Very good until 2100, then poor. 

.SUNDAY...
Sky/weather.........Mostly sunny (10-20%). 
Chc of lightning....0 percent. 
Max temperature.....82-92 F near 6000 feet 
                    70-80 F near 8000 feet. 
Min humidity........6-11%. 
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 15 to 20 mph in 
                    the afternoon. 
Mixing Height.......2500 ft AGL until 1000, then 15500 ft AGL. 
Transport Winds.....Northwest 5 mph until 1200, then west 10 to 15 
                    mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Mostly clear. Lows 49-59. Highs 88-98. Southwest winds
10 to 20 mph with gusts to  30 mph. 
.TUESDAY...Mostly clear. Lows 52-62. Highs 87-97. Southwest winds
10 to 20 mph with gusts to  30 mph. 
.WEDNESDAY...Mostly clear. Lows 52-62. Highs 88-98. Southwest
winds 10 to 20 mph with gusts to  30 mph. 
.THURSDAY...Mostly clear. Lows 53-63. Highs 89-99. 
.FRIDAY...Mostly clear. Lows 53-63. Highs 87-97.