Regional Weather Summary
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AWUS83 KFSD 211656
RWSSD
SDZ001>074-220200-

SOUTH DAKOTA WEATHER SUMMARY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1156 AM CDT THU AUG 21 2014

SCATTERED THUNDERSTORMS AFFECTED THE NORTH CENTRAL...NORTHEAST...AND
FAR SOUTHEAST PARTS OF SOUTH DAKOTA OVERNIGHT...BUT THE MAJORITY OF
THE STATE WAS MILD AND HUMID WITH PATCHY EARLY MORNING FOG IN RIVER
VALLEYS AND LOW LYING AREAS. RAINFALL AMOUNTS WERE AS MUCH AS 1.31
INCHES AT VICTOR IN THE NORTHEAST...BUT ONLY 0.21 INCH AT THE
YANKTON AIRPORT. MOST RAINFALL REPORTS...IF ANYTHING...WERE A TENTH
OF AN INCH OR LESS. A MOSTLY SUNNY TO SUNNY SKY THIS MORNING...ALONG
WITH LIGHT WINDS BETWEEN SOUTHWEST AND NORTHWEST...ALLOWED
TEMPERATURES TO RISE INTO THE UPPER 60S TO UPPER 70S BY MID MORNING.

LOW TEMPERATURES ACROSS SOUTH DAKOTA OVERNIGHT WERE RATHER MILD FOR
MID AUGUST...MAINLY IN THE 60S. THE BLACK HILLS AREA WAS A LITTLE
COOLER...WITH MINIMUMS VARYING FROM 50 DEGREES AT DEERFIELD...TO 61
AT EDGEMONT. ACROSS THE PLAINS...LOWS RANGED FROM 54 DEGREES AT PINE
RIDGE...TO 75 AT YANKTON. TWO OTHER WARM PLACES WERE SIOUX FALLS AND
CENTERVILLE...BOTH HOLDING AT 73 DEGREES.

AT 11 AM CDT / 10 AM MDT...A MOSTLY SUNNY TO SUNNY SKY CONTINUED
OVER SOUTH DAKOTA. TEMPERATURES ACROSS THE PRAIRIES WERE IN THE 70S
TO LOWER 80S...WITH THE BLACK HILLS LAGGING BEHIND A BIT. EXTREMES
RANGED FROM 82 DEGREES AT SIOUX FALLS...TO 66 AT CUSTER. WINDS
ACROSS THE EASTERN PLAINS RANGED FROM SOUTHWEST TO NORTHWEST AT 7 TO
12 MPH. THE WESTERN HIGH PLAINS HAD NORTHWEST TO NORTHEAST WINDS AT
7 TO 12 MPH. IN THE BLACK HILLS...CUSTER REPORTED A SOUTH WIND AT
5 MPH.

THERE COULD BE A FEW ISOLATED THUNDERSTORMS IN THE WESTERN AND
SOUTHEAST PARTS OF SOUTH DAKOTA THIS AFTERNOON...AS THE SKY BECOMES
PARTLY TO MOSTLY SUNNY. CHANCES ARE ONLY ABOUT 15 TO 30 PERCENT...
WITH THE HIGHER CHANCES IN THE NORTHWEST. HIGH TEMPERATURES ACROSS
THE PLAINS WILL WARM INTO THE 80S...WITH SOME PLACES IN THE SOUTH
CENTRAL SECTION APPROACHING 90 DEGREES. HIGH HUMIDITY LEVELS IN THE
SOUTHEAST WILL PUSH PEAK HEAT INDEX VALUES LATE THIS AFTERNOON INTO
THE 95 TO 100 CATEGORY MAINLY SOUTHEAST OF A LINE FROM TYNDALL TO
DELL RAPIDS. MEANWHILE...HIGH TEMPERATURES IN THE BLACK HILLS AREA
ARE ONLY EXPECTED TO REACH THE MID 70S TO LOWER 80S.

$$






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