National Weather Service United States Department of Commerce

 

UTZ486-230230-
Eastern Uinta Basin-
428 AM MDT Sun Jul 22 2018

.DISCUSSION...A trough will move across northern CO and northeast UT today 
acting on monsoon moisture already over the area. Showers and thunderstorms
will be more numerous north of Interstate 70 with less activity expected to
the south. High pressure centered over Texas will slide west forcing the 
already week monsoon plume to the west as low pressure strengthens east of
the Continental Divide. This will bring most coverage of storms near the 
Divide Monday. As the high continues moving west, drier northwest flow aloft
will move over the area causing showers and thunderstorms to decrease through
the week. Enough residual moisture will remain for diurnal mainly terrain 
hugging storms each afternoon and evening.

...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.........Near 6000 feet, partly cloudy (50-60%), 
                    isolated showers and thunderstorms. Near 8000 
                    feet, partly cloudy (50-60%) until 1200, then 
                    mostly cloudy (60-70%), isolated thunderstorms 
                    until 1200. Scattered showers. Scattered 
                    thunderstorms after 1200. 
Max temperature.....81-91 F near 6000 feet 
                    69-79 F near 8000 feet. 
   24 hr trend......5 degrees cooler. 
Min humidity........19-29% near 6000 feet 
                    25-35% near 8000 feet. 
   24 hr trend......6% wetter. 
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........3 very low. 
Mixing Height.......3500 ft AGL until 0900, then 11500 ft AGL. 
Transport Winds.....West 5 mph. 
Clearing Index......Less than 500 until 1000, then 1050. 

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80%) until 2400, then partly 
                    cloudy (50-60%). Near 6000 feet, isolated 
                    thunderstorms until 2400. Isolated showers. 
                    near 8000 feet, scattered showers and 
                    thunderstorms until 2400, then isolated 
                    showers. 
Min temperature.....55-65 F. 
   24 hr trend......5 degrees cooler. 
Max humidity........56-66% near 6000 feet 
                    60-75% near 8000 feet. 
   24 hr trend......11% wetter. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 20 mph in the evening. 
CWR.................10 percent. 
LAL.................2 until 2400, then 4.
Haines Index........3 very low. 
Mixing Height.......9000 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....North 5 to 10 mph. 
Clearing Index......950 until 2100. Less than 500 after 2300. 

.MONDAY...
Sky/weather.........Partly cloudy (40-50%). Near 6000 feet, 
                    isolated showers and thunderstorms after 1200. 
                    Near 8000 feet, isolated showers. Isolated 
                    thunderstorms after 1200.
Max temperature.....81-91 F near 6000 feet 
                    71-81 F near 8000 feet. 
   24 hr trend......3 degrees warmer. 
Min humidity........15-25%. 
   24 hr trend......7% drier. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
LAL.................2.
Haines Index........4 low. 
Mixing Height.......3000 ft AGL until 1000, then 12500 ft AGL. 
Transport Winds.....North 5 mph. 
Clearing Index......700 until 1500, then 1050. 

.FORECAST FOR DAY 3 THROUGH 7...
.TUESDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 59-69. Highs 86-96. Winds less than 15 mph. 
.WEDNESDAY...Partly cloudy. Isolated showers near 6000 feet and
scattered showers near 8000 feet. Lows 60-70. Highs 86-96. Winds
less than 15 mph. 
.THURSDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and thunderstorms near
8000 feet. Lows 59-69. Highs 85-95. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms near
6000 feet and scattered showers and isolated thunderstorms near
8000 feet. Lows 58-68. Highs 84-94. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 57-67. Highs 84-94. 

$$