Southwest Colorado Lower Forecast Area (COZ207) - Fire Weather Forecast

COZ207-201130-
COZ207-201130-
Southwest Colorado Lower Forecast Area-
123 PM MDT Thu Sep 19 2024

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
123 PM MDT Thu Sep 19 2024

.DISCUSSION...Dry weather will continue through Friday with
generally light, terrain driven winds in the valleys with
occasional gusts to 25 mph in the afternoon over the high terrain.
Localized critical fire weather conditions may occur at times on
Friday ahead of a storm system set to bring a return of scattered
showers and thunderstorms to the region Saturday into Sunday.
Light snow is possible at the higher peaks. Another disturbance
drops in from the north early to mid next week, keeping weather
cooler and unsettled.

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


.Tonight...
Sky/weather.........Mostly clear (20-30%). 
Min temperature.....46-56 F. 
Max humidity........55-65%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
LAL.................1.
Haines Index........4 or low. 
15K Ft MSL Winds....Southwest 25 to 35 mph. 
Mixing Height.......6000 ft AGL until 1900, then 2000 ft AGL. 
Transport Winds.....Southeast 5 to 10 mph. 
Smoke dispersal.....Poor. 

.FRIDAY...
Sky/weather.........Mostly sunny (10-20%). 
Max temperature.....74-84 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. 
LAL.................1.
Haines Index........5 or moderate. 
15K Ft MSL Winds....South 25 to 35 mph. 
Mixing Height.......1500 ft AGL until 1000, then 10500 ft AGL. 
Transport Winds.....Southeast 5 to 10 mph until 1200, then south 15 
                    to 20 mph. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.FRIDAY NIGHT...
Sky/weather.........Mostly clear (10-20%). Isolated showers after 
                    2400. 
Min temperature.....45-55 F. 
Max humidity........56-71%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
LAL.................1.
Haines Index........5 or moderate. 
15K Ft MSL Winds....South 25 to 35 mph. 
Mixing Height.......9000 ft AGL until 1900, then 2000 ft AGL. 
Transport Winds.....Southeast 5 to 10 mph. 
Smoke dispersal.....Fair until 2100, then poor. 

.SATURDAY...
Sky/weather.........Mostly cloudy (70-80%). Scattered showers and 
                    isolated thunderstorms until 1200, then 
                    numerous showers and scattered thunderstorms. 
Max temperature.....64-74 F. 
Min humidity........28-38%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 20 mph. 
CWR.................60 percent. 
LAL.................2 until 1200, then 4.
Haines Index........4 or low. 
15K Ft MSL Winds....South 25 to 35 mph decreasing to 20 to 25 mph 
                    in the afternoon. 
Mixing Height.......2500 ft AGL until 1000, then 5500 ft AGL. 
Transport Winds.....Southeast 10 to 15 mph until 1200, then 
                    southwest. 
Smoke dispersal.....Poor until 0900, then fair until 1200, then 
                    very good until 1500, then good. 

.FORECAST FOR DAY 3 THROUGH 7...
.SUNDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 39-49. Highs 68-78. Winds less than 15 mph. 
.MONDAY...Mostly clear. Lows 40-50. Highs 70-80. Winds less than
15 mph. 
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 40-50. Highs 69-79. Winds less than 15 mph. 
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 40-50. Highs 70-80. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 41-51. Highs 72-82.