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South Dakota Fire Weather Zone 257

.DISCUSSION...
AN UPPER LEVEL LOW WILL BRING A CONTINUED WET PATTERN TO THE AREA. IT
WILL NOT BE A CONSTANT RAIN...BUT PERIODS OF SHOWERS ARE LIKELY
ANYTIME THROUGH WEDNESDAY. DRIER CONDITIONS SHOULD MOVE BACK IN BY
THE END OF THE WEEK. EXPECT COOLER TEMPERATURES THIS WEEK AS
WELL...WITH HIGHS IN THE 60S AND 70S THROUGH FRIDAY.

MIDDLE BIG SIOUX RIVER VALLEY-
439 PM CDT SUN MAY 19 2013

.TONIGHT...
SKY/WEATHER.........CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
                    CHANCE OF PRECIPITATION 50 PERCENT.
MIN TEMPERATURE.....55-60.
MAX HUMIDITY........87-92 PERCENT.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 10 MPH.
PRECIPITATION.......SCATTERED 0.30 TO 0.50 INCH AMOUNTS.

.MONDAY...
SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY UNTIL 1300.
                    ISOLATED THUNDERSTORMS. SCATTERED RAIN SHOWERS
                    AFTER 1300. CHANCE OF PRECIPITATION 70 PERCENT.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........65-70 PERCENT.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH.
HAINES INDEX........3 OR VERY LOW.
HOURS OF SUN........2 HOURS.
PRECIPITATION.......AREAS OF 0.10 TO 0.20 INCH AMOUNTS.
MIXING HEIGHT.......AROUND 3100 FT AGL (AVE 12-6 PM).
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH (AVE 12-6 PM).
SMOKE DISPERSAL.....AROUND 57000 OR GOOD (AVE 12-6 PM).
MAX GFDI INDEX......LOW.
REF EVAPO TRANSP....0.10 TO 0.18 INCHES (20 INCH PLANT CANOPY).

.MONDAY NIGHT...
SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS. CHANCE OF
                    SHOWERS 50 PERCENT.
MIN TEMPERATURE.....51-56.
MAX HUMIDITY........90-95 PERCENT.
20-FOOT WINDS.......SOUTHWEST WINDS 8 TO 13 MPH.
PRECIPITATION.......SCATTERED 0.10 TO 0.20 INCH AMOUNTS.

.TUESDAY...
SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS UNTIL
                    1300...THEN RAIN SHOWERS LIKELY. CHANCE OF
                    SHOWERS 70 PERCENT.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........75-80 PERCENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO THE
                    NORTHWEST 5 TO 8 MPH IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW.
HOURS OF SUN........0 HOURS.
PRECIPITATION.......AREAS OF 0.10 TO 0.20 INCH AMOUNTS.
MIXING HEIGHT.......AROUND 2700 FT AGL (AVE 12-6 PM).
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH (AVE 12-6 PM).
SMOKE DISPERSAL.....AROUND 36000 OR GOOD (AVE 12-6 PM).
MAX GFDI INDEX......LOW.
REF EVAPO TRANSP....0.08 TO 0.10 INCHES (20 INCH PLANT CANOPY).



.FORECAST DAYS 3 THROUGH 7...
.TUESDAY NIGHT...CLOUDY. CHANCE OF RAIN. LOWS 50 TO 55. NORTHWEST
WINDS 5 TO 9 MPH. CHANCE OF RAIN 50 PERCENT.
.WEDNESDAY...CLOUDY. CHANCE OF RAIN. HIGHS 60 TO 65. NORTH WINDS
6 TO 11 MPH. CHANCE OF RAIN 50 PERCENT.
.WEDNESDAY NIGHT...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.
LOWS 45 TO 50. NORTH WINDS 6 TO 11 MPH. CHANCE OF SHOWERS
20 PERCENT.
.THURSDAY...PARTLY SUNNY. HIGHS 60 TO 65. NORTHEAST WINDS 7 TO
12 MPH.
.THURSDAY NIGHT...PARTLY CLOUDY. LOWS 45 TO 50. EAST WINDS 6 TO
11 MPH.
.FRIDAY...PARTLY CLOUDY. HIGHS 65 TO 70. SOUTHEAST WINDS 8 TO
13 MPH WITH GUSTS TO AROUND 22 MPH.
.FRIDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 50 TO 55. SOUTHEAST WINDS 8 TO 13 MPH WITH
GUSTS TO AROUND 21 MPH. CHANCE OF PRECIPITATION 40 PERCENT.
.SATURDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
HIGHS 65 TO 70. SOUTHEAST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
.SATURDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 55 TO 60. SOUTHEAST WINDS 8 TO 13 MPH. CHANCE
OF PRECIPITATION 40 PERCENT.
.SUNDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
HIGHS 70 TO 75. EAST WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION
30 PERCENT.