South Dakota Fire Weather Zone 257

.DISCUSSION...
WARM AND MUGGY CONDITIONS WILL CONTINUE THE NEXT FEW DAYS AHEAD OF A COLD FRONT THAT IS EXPECTED TO MOVE THROUGH THE AREA ON SUNDAY. A DISTURBANCE IS EXPECTED TO MOVE ACROSS THE REGION TONIGHT INTO SATURDAY...CREATING THUNDERSTORMS ESPECIALLY WEST OF THE JAMES RIVER VALLEY. SOME OF THESE STORMS COULD PRODUCE HEAVY RAINFALL. MIDDLE BIG SIOUX RIVER VALLEY- 451 AM CDT FRI AUG 22 2014 .TODAY... SKY/WEATHER.........PARTLY CLOUDY. MAX TEMPERATURE.....81-86. MIN HUMIDITY........58-63 PERCENT. 20-FOOT WINDS.......NORTHEAST WINDS 5 TO 6 MPH. HAINES INDEX........5 OR MODERATE. HOURS OF SUN........7 HOURS. PRECIPITATION.......NONE. MIXING HEIGHT.......AROUND 3400 FT AGL (AVE 12-6 PM). TRANSPORT WINDS.....EAST AROUND 8 MPH (AVE 12-6 PM). SMOKE DISPERSAL.....AROUND 22000 OR FAIR (AVE 12-6 PM). MAX GFDI INDEX......LOW. REF EVAPO TRANSP....0.13 TO 0.16 INCHES (20 INCH PLANT CANOPY). .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 0100...THEN CHANCE OF SHOWERS AND THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. MIN TEMPERATURE.....64-69. MAX HUMIDITY........95-100 PERCENT. 20-FOOT WINDS.......EAST WINDS 7 TO 12 MPH. PRECIPITATION.......SCATTERED 0.30 TO 0.50 INCH AMOUNTS. .SATURDAY... SKY/WEATHER.........CLOUDY. SHOWERS AND THUNDERSTORMS UNTIL 1300...THEN SHOWERS AND THUNDERSTORMS LIKELY. CHANCE OF PRECIPITATION 80 PERCENT. MAX TEMPERATURE.....78-83. MIN HUMIDITY........75-80 PERCENT. 20-FOOT WINDS.......EAST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 23 MPH. HAINES INDEX........5 OR MODERATE. HOURS OF SUN........1 HOURS. PRECIPITATION.......WIDESPREAD 0.50 TO 0.75 INCH AMOUNTS. MIXING HEIGHT.......AROUND 1900 FT AGL (AVE 12-6 PM). TRANSPORT WINDS.....SOUTHEAST AROUND 25 MPH (AVE 12-6 PM). SMOKE DISPERSAL.....AROUND 42000 OR GOOD (AVE 12-6 PM). MAX GFDI INDEX......LOW. REF EVAPO TRANSP....0.11 TO 0.14 INCHES (20 INCH PLANT CANOPY). .FORECAST DAYS 3 THROUGH 7... .SATURDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 65 TO 70. SOUTH WINDS 8 TO 13 MPH. CHANCE OF PRECIPITATION 50 PERCENT. .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 75 TO 80. WEST WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION 20 PERCENT. .SUNDAY NIGHT...COOLER. PARTLY CLOUDY. LOWS 55 TO 60. NORTHWEST WINDS 5 TO 10 MPH. .MONDAY...PARTLY CLOUDY. HIGHS 75 TO 80. NORTHWEST WINDS 5 TO 7 MPH. .MONDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 55 TO 60. NORTHEAST WINDS 5 TO 8 MPH. CHANCE OF PRECIPITATION 50 PERCENT. .TUESDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 70 TO 75. NORTHEAST WINDS 6 TO 11 MPH. CHANCE OF PRECIPITATION 50 PERCENT. .TUESDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 55 TO 60. NORTHEAST WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT. .WEDNESDAY...PARTLY SUNNY. CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 70 TO 75. NORTH WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION 30 PERCENT. .WEDNESDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 55 TO 60. NORTHEAST WINDS 5 TO 8 MPH. CHANCE OF PRECIPITATION 20 PERCENT. .THURSDAY...PARTLY CLOUDY. HIGHS 75 TO 80. SOUTH WINDS 5 TO 9 MPH.
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