Fri May 17 14:50:54 EDT 2024

Northern Foot Hills-
Including Spearfish and Sturgis
1250 PM MDT Fri May 17 2024

.TONIGHT...
Sky/weather.........Partly cloudy. Chance of thunderstorms in the 
                    evening. Chance of rain showers through the 
                    night. Slight chance of thunderstorms after 
                    midnight. 
Chc of wetting rain.10 percent. 
LAL.................3 until 2400, then 2. 
Min temperature.....Around 43. 
Max humidity........69-75 percent. 
20-foot winds.......West 30 to 40 mph with gusts to around 55 mph. 
Haines Index........2 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....Northwest around 50 mph. 
Smoke dispersal.....Poor. 
Mixing height.......500 to 600 ft agl. 

.SATURDAY...
Sky/weather.........Sunny. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Max temperature.....Around 67. 
Min humidity........24 percent. 
20-foot winds.......West 20 to 30 mph with gusts to around 40 mph 
                    shifting to the northwest 15 to 20 mph with 
                    gusts to around 30 mph in the afternoon. 
Haines Index........5 moderate potential for large plume dominated 
                    fire growth. 
Transport winds.....West 35 to 40 mph. 
Smoke dispersal.....Very good. 
Mixing height.......5700 to 7200 ft agl. 

.SATURDAY NIGHT...
Sky/weather.........Mostly clear. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Min temperature.....Around 45. 
Max humidity........53-65 percent. 
20-foot winds.......East 5 to 10 mph shifting to the south after 
                    midnight. 
Haines Index........3 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....Southeast around 15 mph. 
Smoke dispersal.....Poor. 
Mixing height.......400 to 500 ft agl. 

.SUNDAY...
Sky/weather.........Mostly sunny. Chance of rain showers and slight 
                    chance of thunderstorms in the afternoon. 
Chc of wetting rain.20 percent. 
LAL.................1 until 1200, then 3. 
Max temperature.....Around 75. 
Min humidity........33 percent. 
20-foot winds.......Northwest 5 to 10 mph shifting to the northeast 
                    10 to 15 mph in the afternoon. 
Haines Index........5 moderate potential for large plume dominated 
                    fire growth. 
Transport winds.....West around 15 mph shifting to the south in the 
                    afternoon. 
Smoke dispersal.....Poor increasing to very good in the afternoon. 
Mixing height.......5200 to 6500 ft agl. 


.FORECAST DAYS 3 THROUGH 7...
.MONDAY...Cooler. Mostly cloudy with chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 50s.
Northwest winds 15 to 20 mph. 
.TUESDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the mid 50s.
Northwest winds 10 to 15 mph. 
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
Northwest winds around 15 mph. 
.THURSDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the lower 40s. Highs in the lower 60s. 
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the mid 40s. Highs around 60.