National Weather Service United States Department of Commerce

COZ203-220130-
Lower Colorado River-
321 AM MDT Sat Jul 21 2018

.DISCUSSION...High pressure over Texas will slide west over the weekend
forcing monsoonal moisture into central and western UT then curving east
across northern CO and UT. The High center will move to just south of
the Four Corners by Monday cutting off direct northerly flow of moisture
into the area. Instead moisture will recycle around the High through the
week. The general flow aloft will be from the northwest.

...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%) until 1200, then partly 
                    cloudy (30-40%). Isolated showers and 
                    thunderstorms after 1200. 
Max temperature.....85-95 F near 6000 feet 
                    75-85 F near 8000 feet. 
Min humidity........14-24%. 
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........5 moderate. 
15K Ft MSL Winds....Southwest 10 to 15 mph. 
Mixing Height.......3500 ft AGL until 1000, then 12000 ft AGL. 
Transport Winds.....South 5 to 10 mph until 1200, then southwest. 
Smoke dispersal.....Poor until 0900. Very good after 1200. 

.TONIGHT...
Sky/weather.........Partly cloudy (50-60%) until 2400, then mostly 
                    cloudy (60-70%). Isolated showers and 
                    thunderstorms. 
Min temperature.....61-71 F near 6000 feet 
                    55-65 F near 8000 feet. 
Max humidity........45-55%. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent. 
LAL.................2.
Haines Index........5 moderate. 
15K Ft MSL Winds....West 10 to 15 mph. 
Mixing Height.......9500 ft AGL until 2000. 2000 ft AGL after 2100. 
Transport Winds.....South 5 mph until 2400, then east. 
Smoke dispersal.....Fair until 2100, then poor. 

.SUNDAY...
Sky/weather.........Partly cloudy (50-60%). Scattered showers and 
                    thunderstorms after 1200. 
Max temperature.....86-96 F near 6000 feet 
                    76-86 F near 8000 feet. 
Min humidity........16-26%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
LAL.................1 until 1200, then 4.
Haines Index........4 low. 
15K Ft MSL Winds....West 10 to 15 mph. 
Mixing Height.......12500 ft AGL. 
Transport Winds.....Southeast 5 mph until 1200, then west. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Partly cloudy. Scattered showers and thunderstorms.
Lows 59-69. Highs 86-96. Winds less than 15 mph. 
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 59-69. Highs 86-96. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 59-69. Highs 88-98. Winds less than 15 mph. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 59-69. Highs 87-97. 
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows
58-68. Highs 87-97. 

$$