National Weather Service United States Department of Commerce

Light snow moves across the N.Colorado Mountains Tonight and Early Tuesday

A quick moving Pacific storm will pass across northern Colorado tonight into Tuesday, bringing some light valley rain and mountain snow to NW Colorado. Travel impacts are possible in the mountains overnight. Read More >

 

COZ207-011215-
Southwest Colorado Lower Forecast Area-
206 PM MDT Tue Oct 31 2017

.DISCUSSION...Snow and rain showers will continue this afternoon 
across the southern mountains before ending overnight as a storm 
system exists the area. Temperatures will run 2 to 3 degrees below
average today and tomorrow before rebounding by mid week. Winds 
will increase from the west southwest during the afternoon hours. 
Little chance for precipitation is expected until early next week 
as temperatures hang near normal.





...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.....32-42 F. 
Max humidity........61-76%. 
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........3 very low. 
15K Ft MSL Winds....Northwest 25 to 35 mph. 
Mixing Height.......2000 ft AGL. 
Transport Winds.....South 5 to 10 mph. 
Smoke dispersal.....Poor. 

.WEDNESDAY...
Sky/weather.........Mostly sunny (20-30%). 
Max temperature.....58-68 F. 
Min humidity........21-31%. 
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........2 very low. 
15K Ft MSL Winds....West 25 to 35 mph. 
Mixing Height.......6500 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. 

.WEDNESDAY NIGHT...
Sky/weather.........Mostly clear (10-20%). 
Min temperature.....35-45 F. 
Max humidity........62-77%. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 25 mph in the evening. 
CWR.................0 percent. 
LAL.................1.
Haines Index........2 very low. 
15K Ft MSL Winds....West 25 to 35 mph. 
Mixing Height.......5000 ft AGL until 2100, then 2500 ft AGL. 
Transport Winds.....Southwest 15 to 20 mph until 2400, then 5 to 10 
                    mph. 
Smoke dispersal.....Good until 2100, then poor. 

.THURSDAY...
Sky/weather.........Mostly sunny (20-30%). 
Max temperature.....55-65 F. 
Min humidity........26-36%. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 25 mph in the afternoon. 
CWR.................0 percent. 
LAL.................1.
Haines Index........2 very low. 
15K Ft MSL Winds....West 20 to 30 mph, decreasing to 20 to 25 mph 
                    in the afternoon. 
Mixing Height.......6000 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.FRIDAY...Mostly clear. Lows 33-43. Highs 57-67. Winds less than
15 mph. 
.SATURDAY...Partly cloudy. Lows 35-45. Highs 59-69. Winds less
than 15 mph. 
.SUNDAY...Mostly cloudy. Lows 36-46. Highs 58-68. Southwest winds
10 to 20 mph with gusts up to 30 mph. 
.MONDAY...Mostly cloudy. Scattered showers. Lows 35-45. Highs
55-65. 
.TUESDAY...Partly cloudy. Isolated showers. Lows 31-41. Highs
56-66. 

$$