Thu May  2 15:21:05 EDT 2024

Northern Black Hills-
Including Lead, Deadwood, and Rochford
120 PM MDT Thu May 2 2024

.TONIGHT...
Sky/weather.........Mostly clear then becoming mostly cloudy. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Min temperature.....23-29. 
Max humidity........69-83 percent. 
20-foot winds.......West 10 to 20 mph. 
Haines Index........2 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....West around 35 mph decreasing to around 15 mph 
                    after midnight. 
Smoke dispersal.....Poor. 
Mixing height.......500 to 600 ft agl. 

.FRIDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers through 
                    the day. Chance of rain showers in the 
                    afternoon. 
Chc of wetting rain.30 percent. 
LAL.................1. 
Max temperature.....39-47. 
Min humidity........38-46 percent. 
20-foot winds.......Northwest 10 to 20 mph. 
Haines Index........2 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....Northwest around 20 mph increasing to around 30 
                    mph in the afternoon. 
Smoke dispersal.....Fair increasing to very good in the afternoon. 
Mixing height.......5000 to 6300 ft agl. 

.FRIDAY NIGHT...
Sky/weather.........Mostly clear. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Min temperature.....22-28. 
Max humidity........70-86 percent. 
20-foot winds.......West 10 to 15 mph. 
Haines Index........2 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....Northwest around 30 mph becoming west around 15 
                    mph after midnight. 
Smoke dispersal.....Poor. 
Mixing height.......400 to 500 ft agl. 

.SATURDAY...
Sky/weather.........Sunny. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Max temperature.....52-58. 
Min humidity........30 percent. 
20-foot winds.......Southwest 10 to 15 mph shifting to the 
                    southeast 10 to 20 mph in the afternoon. 
Haines Index........3 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....Southwest 15 to 20 mph. 
Smoke dispersal.....Good increasing to very good in the afternoon. 
Mixing height.......5500 to 6900 ft agl. 


.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Windy. Mostly clear. Chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
60s. South winds 30 to 35 mph. 
.MONDAY...Cooler, windy. Showers likely with possible
thunderstorms and snow showers. Lows around 40. Highs in the
lower 50s. Southwest winds 25 to 30 mph. 
.TUESDAY...Windy. Mostly cloudy. Chance of showers, snow showers
and slight chance of thunderstorms. Lows in the lower 30s. Highs
in the upper 40s. West winds around 30 mph. 
.WEDNESDAY...Mostly cloudy. Chance of showers, snow showers and
slight chance of thunderstorms. Lows in the lower 30s. Highs in
the mid 40s. 
.THURSDAY...Mostly cloudy. Showers likely with possible snow
showers and thunderstorms. Lows in the lower 30s. Highs in the
mid 40s.