Thu May  2 15:33:10 EDT 2024

Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
132 PM MDT Thu May 2 2024

.TONIGHT...
Sky/weather.........Partly cloudy until 0300, then mostly cloudy. 
                    Slight chance of showers and snow showers after 
                    0400. 
Min temperature.....29-34. 
   24 hr trend......1 degree warmer. 
Max humidity........76-82 percent. 
   24 hr trend......6 percent drier. 
Humidity recovery...Good. 
20-foot winds.......Northwest 5 to 10 mph. Gusts up to 30 mph 
                    decreasing to 15 mph after midnight. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....Northwest around 15 mph shifting to the 
                    northeast after midnight. 
Mixing height.......6500-8500 ft AGL decreasing to 800-2200 ft AGL 
                    after midnight. 
Smoke dispersal.....Very good (100600 knot-ft) decreasing to poor 
                    (11600 knot-ft) after midnight. 
Haines Index........3 or very low potential for large plume 
                    dominated fire growth. 

.FRIDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy. 
                    Chance of showers and snow showers. 
Max temperature.....48-53. 
   24 hr trend......6 degrees cooler. 
Min humidity........32-38 percent. 
   24 hr trend......26 percent wetter. 
20-foot winds.......North around 10 mph. 
LAL.................1. 
Chc of wetting rain.5 percent. 
Transport winds.....North around 15 mph. 
Mixing height.......2900-4900 ft AGL increasing to 6400-8400 ft AGL 
                    in the afternoon. 
Smoke dispersal.....Fair (45200 knot-ft) increasing to good (99300 
                    knot-ft) in the afternoon. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy until 2400, then clear. 
Min temperature.....26-31. 
   24 hr trend......3 degrees cooler. 
Max humidity........80-86 percent. 
   24 hr trend......7 percent wetter. 
Humidity recovery...Good. 
20-foot winds.......North around 10 mph shifting to the southeast 
                    after midnight. Gusts up to 15 mph. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....North around 10 mph shifting to the southeast 
                    after midnight. 
Mixing height.......4500-6500 ft AGL decreasing to 300-1300 ft AGL 
                    after midnight. 
Smoke dispersal.....Fair (55700 knot-ft) decreasing to poor (3500 
                    knot-ft) after midnight. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.SATURDAY...
Sky/weather.........Sunny. 
Max temperature.....62-67. 
   24 hr trend......14 degrees warmer. 
Min humidity........19-25 percent. 
   24 hr trend......14 percent drier. 
20-foot winds.......South 10 to 15 mph and gusty. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....South 10 to 15 mph. 
Mixing height.......2300-4300 ft AGL increasing to 7500-9500 ft AGL 
                    in the afternoon. 
Smoke dispersal.....Poor (23500 knot-ft) increasing to very good 
                    (129300 knot-ft) in the afternoon. 
Haines Index........2 or very low potential for large plume 
                    dominated fire growth. 

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear with slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the mid 70s. South
winds around 15 mph. 
.MONDAY...Cooler. Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 50s.
Southwest winds around 15 mph. 
.TUESDAY...Partly cloudy with chance of showers. Lows in the
upper 30s. Highs in the upper 50s. West winds around 15 mph. 
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of snow showers. Lows in the mid 30s. Highs in the mid
50s. 
.THURSDAY...Partly cloudy with chance of showers and slight
chance of snow showers. Lows in the mid 30s. Highs in the mid
50s.