Mon May 20 14:46:08 EDT 2024

Butte County Area-
Including Belle Fourche, Colony, and Newell
1245 PM MDT Mon May 20 2024

.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of rain showers. 
Chc of wetting rain.30 percent. 
LAL.................1. 
Min temperature.....Around 43. 
Max humidity........88-96 percent. 
20-foot winds.......South 5 to 10 mph shifting to the northwest 
                    after midnight. 
Haines Index........3 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....South around 15 mph shifting to the north after 
                    midnight. 
Smoke dispersal.....Poor. 
Mixing height.......800 to 900 ft agl. 

.TUESDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers in the 
                    morning, then rain showers likely and slight 
                    chance of thunderstorms in the afternoon. 
Chc of wetting rain.50 percent. 
LAL.................1 until 1200, then 3. 
Max temperature.....Around 60. 
Min humidity........47-53 percent. 
20-foot winds.......Northwest 10 to 15 mph. 
Haines Index........5 moderate potential for large plume dominated 
                    fire growth. 
Transport winds.....North around 20 mph. 
Smoke dispersal.....Good. 
Mixing height.......4300 to 5400 ft agl. 

.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy. 
                    Chance of rain showers and slight chance of 
                    thunderstorms in the evening, then slight 
                    chance of rain showers after midnight. 
Chc of wetting rain.10 percent. 
LAL.................3 until 2400, then 1. 
Min temperature.....Around 39. 
Max humidity........89-95 percent. 
20-foot winds.......West 10 to 15 mph. 
Haines Index........3 very low potential for large plume dominated 
                    fire growth. 
Transport winds.....West around 20 mph. 
Smoke dispersal.....Poor. 
Mixing height.......400 to 500 ft agl. 

.WEDNESDAY...
Sky/weather.........Sunny. Slight chance of rain showers in the 
                    afternoon. 
Chc of wetting rain.0 percent. 
LAL.................1. 
Max temperature.....Around 70. 
Min humidity........30 percent. 
20-foot winds.......Southwest 5 to 10 mph. 
                    Gusts to around 20 mph in the afternoon. 
Haines Index........6 high potential for large plume dominated fire 
                    growth. 
Transport winds.....Southwest 20 to 25 mph. 
Smoke dispersal.....Good increasing to excellent in the afternoon. 
Mixing height.......8000 to 10100 ft agl. 


.FORECAST DAYS 3 THROUGH 7...
.THURSDAY...Partly cloudy. Chance of showers. Lows in the mid
40s. Highs in the lower 70s. South winds 15 to 20 mph. 
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
West winds around 20 mph. 
.SATURDAY...Warmer. Mostly clear. Lows in the lower 40s. Highs in
the mid 70s. Southeast winds around 15 mph. 
.SUNDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. 
.MEMORIAL DAY...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the upper
60s.