National Weather Service United States Department of Commerce

 

COZ201-161300-
Routt Forecast Area-
251 PM MDT Sun Jul 15 2018

.DISCUSSION...Drier air moved into the northern have of western CO and eastern
UT today and will continue to move south and east tonight and Monday. The 
monsoonal showers and thunderstorms over the southern half of the area will
continue through this evening then decrease overnight. Monday will see less
storm development, but southwest CO will still see more areal coverage and rain
than the rest of the forecast area. Tuesday and Wednesday will be drier as high
pressure over the Great Basin forces monsoonal moisture to the south and west.
Then Thursday through the weekend the high will slide east over the Four Corners
and bring a light to moderate monsoonal surge back to the area with increasing
afternoon and nighttime showers and thunderstorms.

...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.........Partly cloudy (30-40%). Scattered showers and 
                    thunderstorms until 2400. 
Min temperature.....48-58 F. 
Max humidity........60-75%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent. 
LAL.................4 until 2400, then 1.
Haines Index........5 moderate. 
15K Ft MSL Winds....North 10 to 15 mph. 
Mixing Height.......5500 ft AGL until 2400, then 2500 ft AGL. 
Transport Winds.....East 5 mph. 
Smoke dispersal.....Fair until 2100. Poor after 2400. 

.MONDAY...
Sky/weather.........Mostly sunny (20-30%). Isolated showers and 
                    thunderstorms after 1200. 
Max temperature.....73-83 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. 
LAL.................1 until 1200, then 2.
Haines Index........6 high. 
15K Ft MSL Winds....North 10 to 15 mph, becoming northwest 5 to 10 
                    mph in the afternoon. 
Mixing Height.......2500 ft AGL until 0700, then 13000 ft AGL. 
Transport Winds.....North 5 mph. 
Smoke dispersal.....Poor until 0900, then good. 

.MONDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Isolated showers and 
                    thunderstorms until 2400. 
Min temperature.....51-61 F. 
Max humidity........51-61%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
LAL.................2 until 2400, then 1.
Haines Index........5 moderate. 
15K Ft MSL Winds....Northwest 5 to 10 mph, increasing to west 10 to 
                    15 mph after midnight. 
Mixing Height.......3500 ft AGL. 
Transport Winds.....Northwest 5 mph until 2400, then south. 
Smoke dispersal.....Good until 2100. Poor after 2400. 

.TUESDAY...
Sky/weather.........Partly cloudy (50-60%). Isolated showers and 
                    thunderstorms until 1200, then scattered 
                    showers and thunderstorms. 
Max temperature.....75-85 F. 
Min humidity........20-30%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
LAL.................2 until 1200, then 4.
Haines Index........5 moderate. 
15K Ft MSL Winds....West 15 to 20 mph. 
Mixing Height.......3500 ft AGL until 0800, then 13000 ft AGL. 
Transport Winds.....West 5 to 10 mph. 
Smoke dispersal.....Poor until 0900. Excellent after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 49-59. Highs 77-87. Winds less than 15 mph. 
.THURSDAY...Mostly clear. Isolated showers and thunderstorms.
Lows 50-60. Highs 79-89. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
51-61. Highs 78-88. Winds less than 15 mph. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 52-62. Highs 78-88. 
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
51-61. Highs 78-88. 

$$