Mon May 20 16:53:45 EDT 2024

Book Cliffs-
253 PM MDT Mon May 20 2024

.Tonight...
Sky/weather.........Mostly cloudy (70-80%). Scattered thunderstorms 
                    until 2400. Scattered showers. Isolated 
                    thunderstorms after 2400. 
Min temperature.....35-45 F near 6000 feet 
                    28-38 F near 8000 feet. 
   24 hr trend......5 degrees cooler. 
Max humidity........69-84% near 6000 feet 
                    75-90% near 8000 feet. 
   24 hr trend......4% wetter. 
20-foot winds.......Downslope/downvalley winds 3 to 6 mph. 
                    Localized gusts up to 30 mph in the evening. 
CWR.................40 percent. 
LAL.................4 until 2400, then 2.
Haines Index........3 or very low. 
Mixing Height.......5500 ft AGL until 2300, then 1500 ft AGL. 
Transport Winds.....Northwest 5 to 10 mph. 
Clearing Index......1050 until 2000. Less than 500 after 2300. 

.TUESDAY...
Sky/weather.........Near 6000 feet, partly cloudy (50-60%). Near 
                    8000 feet, mostly cloudy (60-70%) until 1200, 
                    then partly cloudy (50-60%). Scattered showers 
                    and isolated thunderstorms. 
Max temperature.....53-63 F near 6000 feet 
                    45-55 F near 8000 feet. 
   24 hr trend......14 degrees cooler. 
Min humidity........15-25%. 
   24 hr trend......2% wetter. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    northwest 10 to 15 mph with gusts to 30 mph in 
                    the afternoon. 
CWR.................10 percent. 
LAL.................2.
Haines Index........5 or moderate. 
Mixing Height.......1500 ft AGL until 0800. 11500 ft AGL after 
                    0900. 
Transport Winds.....West 5 to 10 mph until 1200, then 15 to 20 mph. 
Clearing Index......Less than 500 until 0900. 1050 after 1000. 

.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (30-40%) until 2400, then clear 
                    (0-10%). 
Min temperature.....30-40 F. 
   24 hr trend......6 degrees cooler. 
Max humidity........50-60%. 
   24 hr trend......23% drier. 
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. 
Mixing Height.......8500 ft AGL until 2000. 1500 ft AGL after 2100. 
Transport Winds.....North 5 to 10 mph until 2400, then south. 
Clearing Index......1050 until 2000. Less than 500 after 2100. 

.WEDNESDAY...
Sky/weather.........Mostly sunny (20-30%) until 1200, then partly 
                    cloudy (30-40%). 
Max temperature.....61-71 F near 6000 feet 
                    53-63 F near 8000 feet. 
   24 hr trend......9 degrees warmer. 
Min humidity........10-15%. 
   24 hr trend......6% drier. 
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming 
                    southwest 10 to 15 mph with gusts to 30 mph in 
                    the afternoon. 
CWR.................0 percent. 
LAL.................1.
Haines Index........5 or moderate. 
Mixing Height.......2000 ft AGL until 0900, then 11500 ft AGL. 
Transport Winds.....South 5 to 10 mph until 1200, then southwest 15 
                    to 20 mph. 
Clearing Index......Less than 500 until 1000. 1050 after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.THURSDAY...Partly cloudy. Lows 42-52. Highs 65-75. West winds
10 to 20 mph with gusts to  35 mph. 
.FRIDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 36-46. Highs 61-71. West winds 10 to 20 mph with gusts to 
30 mph. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms.
Lows 39-49. Highs 67-77. Southwest winds 10 to 20 mph with gusts
to  30 mph. 
.SUNDAY...Partly cloudy. Isolated showers and thunderstorms .
Lows 40-50. Highs 66-76. 
.MEMORIAL DAY...Mostly clear. Isolated showers near 8000 feet.
Lows 39-49. Highs 70-80.