National Weather Service United States Department of Commerce

Heavy rainfall occured overnight and into the early morning hours around much of southeast South Dakota, northeast Nebraska, and portions of northwest Iowa around Sioux City.   The rainfall for the calendar day at Sioux Gateway Airport through noon CDT has totalled 3.07 inches.  This sets a new record daily precipitation for Sioux City, previously 2.61 inches in 1949.  

Below is an image of the radar estimated precipitation overnight and into early Thursday morning.  Two and a half to three and a half inches was estimated by radar in the Sioux City metro area.

24 hour South Dakota Rainfall Data

24 HOUR PRECIPITATION DATA IN INCHES...FOR SOUTH DAKOTA
...RECEIVED BY 9 AM THURSDAY SEPTEMBER 3 2009.

   LOCATION                                RAINFALL

  SALEM 1 NW                                2.09
  HOWARD 10.3 NNE                           1.63
  ELK POINT 5.6 NNE                         1.53
  MARION 0.5 NE                             1.43
  VIBORG 0.2 NNE                            1.23
  MONTROSE 5.8 NW                           0.89
  CLARK                                     0.82
  CENTERVILLE                               0.80
  WHITE LAKE 10.9 S                         0.55
  HARTFORD 6.4 S                            0.55
  FULTON 9.4 N                              0.52
  WESSINGTON SPRINGS                        0.45
  SIOUX FALLS 3.6 ESE                       0.45
  PARKSTON                                  0.43
  DELL RAPIDS                               0.42
  SIOUX FALLS 2.6 ESE                       0.39
  MITCHELL 5.8 S                            0.38
  YANKTON                                   0.37
  ARMOUR 4.6 W                              0.37
  SIOUX FALLS 3.4 WSW                       0.36
  FAITH                                     0.34
  HERRICK 8.2 SSW                           0.33
  SIOUX FALLS AIRPORT                       0.32
  SIOUX FALLS 3.4 ESE                       0.32
  SIOUX FALLS 5.2 SW                        0.32
  ABERDEEN 7.4 NNE                          0.31
  WHITE LAKE                                0.28
  MITCHELL                                  0.25
  ROSCOE                                    0.23
  WESSINGTON RAWS                           0.21
  STICKNEY 0.2 SSE                          0.17
  WARNER 0.1 NW                             0.17
  HURON AIRPORT                             0.15
  ABERDEEN 1.5 SSW                          0.15
  SIOUX FALLS 3.4 ESE                       0.15
  WATERTOWN                                 0.12
  EAGLE BUTTE                               0.11
  CLAREMONT 2.4 SSE                         0.09
  MOUND CITY 0.4 ENE                        0.09
  WESTPORT                                  0.07
  MANSFIELD 0.1 NW                          0.07
  MOBRIDGE                                  0.06
  ABERDEEN WFO                              0.04
  HARTFORD 0.5 N                            0.04
  GETTYSBURG                                0.02
  BURKE 4.2 SW                              0.02
  BROOKINGS 0.2 SSW                         0.02
  CLEAR LAKE 0.6 SSW                        0.02
  BELLE FOURCHE                             0.01
  BUFFALO                                   0.01
  BROOKINGS 2.8 SSW                         0.01
  MURDO                                       T
  PRESHO 11.6 NNE                             T 
  PRESHO 13.8 NW                              T 
  PRESHO 7.7 NNE                              T 
  ROY LAKE                                    T
  WILMONT                                     T
  WINNER                                      T

.END...

Sioux Falls Forecast Area Rainfall Data

 24 HOUR PRECIPITATION DATA IN INCHES...FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA
...RECEIVED BY 9 AM THURSDAY SEPTEMBER 3 2009.

 
...SOUTHEAST SOUTH DAKOTA...

  SALEM 1 NW                               2.09
  PARKER 6.8WSW                            1.77
  ELK POINT 5.6NNE                         1.53
  MARION 0.5NE                             1.43
  VIBORG 0.2NNE                            1.23
  VERMILLION 4.1SE                         0.93
  MONTROSE 5.8NW                           0.89
  VERMILLION                               0.80
  CENTERVILLE                              0.80
  WESSINGTON SPRINGS                       0.59
  HARTFORD 6.4S                            0.55
  WHITE LAKE 11S                           0.55
  YANKTON COOP                             0.54
  FULTON 9.4N                              0.52
  MITCHELL 1.7SSE                          0.48
  SIOUX FALLS 3.6ESE                       0.45
  WESSINGTON SPRINGS                       0.45
  PARKSTON                                 0.43
  DELL RAPIDS                              0.42
  SIOUX FALLS 2.6ESE                       0.39
  EROS DATA CENTER                         0.39
  MITCHELL 5.8S                            0.38
  ARMOUR 4.6W                              0.37
  YANKTON AIRPORT                          0.37
  SIOUX FALLS 3.4WSW                       0.36
  SIOUX FALLS 4.3WSW                       0.33
  HERRICK 9.6SW                            0.33
  SIOUX FALLS 3.4ESE                       0.32
  SIOUX FALLS 5.2SW                        0.32
  SIOUX FALLS AIRPORT                      0.32
  CANTON COOP                              0.29 
  WHITE LAKE                               0.28
  MITCHELL                                 0.25
  WESSINGTON RAWS                          0.21
  STICKNEY 0.2SSE                          0.17
  DIMOCK 10W                               0.16
  HURON COOP                               0.16
  SIOUX FALLS 3.4ESE                       0.15
  HURON AIRPORT                            0.15
  HARTFORD                                 0.04
  BURKE 4SW                                0.02
  BROOKINGS 0.2SSW                         0.02
  ASTORIA 2.2SSE                           0.01
  BROOKINGS 2.8SSW                         0.01
  BURKE 0.3W                                  T
  GREGORY 0.5WSW                              T  


...SOUTHWEST MINNESOTA...

  LUVERNE AIRPORT                          0.01
  PIPESTONE                                0.01


...NORTHWEST IOWA...
 
  SIOUX CITY                               3.14
  SIOUX CITY 1.5NNW                        1.71
  ROCK VALLEY                              1.25
  HOLLY SPRINGS 1 NW                       0.90
  LEMARS COOP                              0.85      
  AKRON                                    0.81
  ORANGE CITY                              0.12
  ALTON                                    0.11
  SIBLEY                                   0.05
  GALVA                                    0.04
  CLEGHORN 4.4N                            0.02
  SHELDON                                     T


...NORTHEAST NEBRASKA...
 
  HUBBARD 3.1SW                            0.98


.END...