Mon May 20 17:07:03 EDT 2024

Grand and Summit Counties Below 9000 Feet-
Including Dillon, Fraser, Granby, Grand Lake, 
Green Mountain Reservoir, Hot Sulphur Springs, Kremmling, 
Middle Park, and Williams Fork Reservoir
306 PM MDT Mon May 20 2024

.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of thunderstorms. 
                    Chance of rain and snow showers after 2400. 
Min Temperature.....33-37. 
   24 hr trend......Little change. 
Max Humidity........84-94%. 
   24 hr trend......10-15% drier. 
20-foot winds.......West winds 5-13 mph. Gusts up to 30 mph in the 
                    evening. 
Haines Index........3 or very low. 
LAL.................3. 
CWR.................10 percent increasing to 30 percent after 
                    midnight. 
15K FT MSL winds....Southwest 35-45 mph. 
Mixing height.......11500-12500 ft AGL until 2000, then 2000-2500 
                    ft AGL. 
Transport winds.....Southwest 25-30 mph until 2000, then west 
                    around 15 mph. 
Smoke dispersal.....Excellent until 1900. Poor after 2000. 

.TUESDAY...
Sky/weather.........Mostly cloudy. Rain showers and snow showers 
                    likely. Chance of thunderstorms after 1200. 
Max Temperature.....45-51. 
   24 hr trend......15-20 degrees cooler. 
Min Humidity........40-48%. 
   24 hr trend......25-35% wetter. 
20-foot winds.......West winds 6-14 mph. 
Haines Index........3 or very low. 
LAL.................1 until 1200, then 4. 
CWR.................10 percent increasing to 30 percent in the 
                    afternoon. 
15K FT MSL winds....West 35-45 mph. 
Mixing height.......5500-6500 ft AGL. 
Transport winds.....West 10-15 mph until 1000, then around 20 mph. 
Smoke dispersal.....Poor until 1000, then good. 

.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy(55-60%) until 2400, then partly 
                    cloudy. Chance of thunderstorms and snow 
                    showers until 2400. 
Min Temperature.....25-29. 
   24 hr trend......7-10 degrees cooler. 
Max Humidity........75-85%. 
   24 hr trend......10-15% drier. 
20-foot winds.......West winds 4-9 mph. Gusts up to 20 mph in the 
                    evening. 
Haines Index........3 or very low. 
LAL.................4 until 2400, then 1. 
CWR.................10 percent decreasing to 0 percent after 
                    midnight. 
15K FT MSL winds....West 30-40 mph. 
Mixing height.......2000-3000 ft AGL. 
Transport winds.....West 10-15 mph. 
Smoke dispersal.....Fair until 2100, then poor. 

.WEDNESDAY...
Sky/weather.........Mostly sunny until 1200, then partly 
                    cloudy(30-40%). 
Max Temperature.....54-60. 
   24 hr trend......4-7 degrees warmer. 
Min Humidity........17-23%. 
   24 hr trend......20-25% drier. 
20-foot winds.......Southwest winds 5-13 mph. Gusts up to 20 mph in 
                    the afternoon. 
Haines Index........3 or very low. 
LAL.................1. 
CWR.................0 percent. 
15K FT MSL winds....West 20-30 mph. 
Mixing height.......9000-10000 ft AGL. 
Transport winds.....Light winds until 0700. Southwest 20-25 mph 
                    after 1400. 
Smoke dispersal.....Poor until 1100. Excellent after 1500. 

.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 30s. South
winds 4-8 mph. 
.THURSDAY...Partly cloudy. Slight chance of thunderstorms. Highs
around 60. West winds 10-17 mph. 
.FRIDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 30s. Highs in the mid 50s. West winds 4-8 mph. 
.SATURDAY...Partly cloudy. Chance of rain showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs around 60.
Southwest winds 4-9 mph.