National Weather Service United States Department of Commerce

Heavy rain fell across the region overnight. At the Huron airport, a record 2.27 inches fell Tuesday evening, eclipsing the previous record for July 26 of 1.80 inches set back in 1980.  Additional heavy rainfall developed later in the night around the Sioux Falls metro area.  A record 2.50 inches of rain was measured at the airport early Wednesday morning, topping the previous record of 2.34 inches in 1911.  However, reports from 3 to over 5 inches of rain were common throughout the city, with the highest amounts on the south and east sides of town.  The highest amount of 5.75 inches was reported near 41st Street and Bahnson Avenue in southeast Sioux Falls. Additional rainfall amounts are available below the map.

Radar Estimated Rainfall for evening of July 26 and early morning of July 27th

24 HOUR PRECIPITATION DATA IN INCHES...FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA...
RECEIVED BY 9 AM WEDNESDAY JULY 27 2011.


...SOUTHEAST SOUTH DAKOTA...

  SIOUX FALLS 3SE                           5.75
  SIOUX FALLS 3.5ENE                        5.25
  SIOUX FALLS 3.4ESE                        5.14
  SIOUX FALLS 2.6ESE                        4.93
  SIOUX FALLS 3.4WSW                        3.95
  SIOUX FALLS 4.3WSW                        3.13
  HARTFORD 6.4S                             2.59
  SIOUX FALLS AIRPORT                       2.50
  CARTHAGE                                  2.33
  EROS DATA CENTER                          2.31
  HURON COOP                                1.53
  HURON AIRPORT                             1.48
  WINFRED                                   1.25
  HARTFORD                                  1.20
  WESSINGTON SPRINGS                        1.10
  MITCHELL 1.1N                             1.08
  MITCHELL                                  1.05
  WESSINGTON RAWS                           0.74
  ASTORIA 2.2SSE                            0.64
  BROOKINGS 8S                              0.60
  ASTORIA                                   0.60
  MARION 0.5NE                              0.58
  BROOKINGS 1.4SW                           0.54
  MITCHELL 5.8S                             0.53
  CHAMBERLAIN 0.3W                          0.50
  GREGORY 8.7S                              0.46
  CHAMBERLAIN                               0.31
  WHITE LAKE                                0.30
  BROOKINGS AIRPORT                         0.30
  HAYTI                                     0.24
  STICKNEY 0.2SSE                           0.15
  PARKER 6.8WSW                             0.10
  ELK POINT 5.6NNE                          0.08
  HERRICK 9.6SW                             0.06
  GREGORY 0.5WSW                            0.05
  DALLAS 8.8S                               0.05
  PICKSTOWN                                 0.05
  BURKE 0.3W                                0.04
  ARMOUR 4.6W                               0.04
  DIMOCK 10W                                0.03
  YANKTON COOP                                 T


...SOUTHWEST MINNESOTA...

  LUVERNE AIRPORT                           1.57
  MARSHALL COOP                             1.25
  LAKEFIELD                                 1.17
  WINDOM AIRPORT                            1.11
  WORTHINGTON COOP                          1.01
  WORTHINGTON AIRPORT                       1.00
  MARSHALL AIRPORT                          0.87
  SLAYTON                                   0.65
  TRACY AIRPORT                             0.60
  JACKSON AIRPORT                           0.09
  PIPESTONE                                 0.01


...NORTHWEST IOWA...

  ORANGE CITY                               0.20
  ORANGE CITY                               0.18
  CHEROKEE 1SSE                             0.07
  CHEROKEE                                  0.05
  SIBLEY                                    0.05
  SIOUX CITY                                0.05
  EVERLY 0.3WSW                             0.03
  REMSEN COOP                               0.02
  SHELDON COOP                              0.01
  LE MARS                                   0.01
  SPENCER AIRPORT                           0.01
  SANBORN COOP                                 T
  SHELDON                                      T