SPC Stats

Path length: 7.8 miles

Width:  647 yards

Fatalities:  1

Injuries:  0

Rating:  F4

County:  Yankton, Turner

In the Storm Prediction Center Database, there are ten tornadoes listed for June 7, 1965.  9 of those were in South Dakota.  4 occurred in parts of Turner County.  3 were rated F2 and 1 was rated F4.  

The Storm Data entry for the date states that approximately 20 funnel clouds were reported in this area and 8 “touched down”.  There is a chance that more than 9 South Dakota tornadoes developed on this day but knowing where they began and ended can’t be determined.  

A farmer near Viborg was hit by debris and died 2 days after this event.  

Thomas Grazulis in Significant Tornadoes has a slightly longer path for this tornado at 15 miles.  He notes 18 farms were damaged or destroyed.  The tornado passed over Swan Lake.  Six cottages on a knoll were swept into the lake.

Tornado Path

Click Map To Enlarge

SPC coordinates:  Start: 43.17 / -97.23   End:  43.23 / -97.07      

Note:  Exact tornado path may not be straight and/or continuous.

Newspaper Clippings


We gathered information for this event from the SPC & NCDC Databases, the June 1965 Storm Data Publication and Thomas Grazulis in Significant Tornadoes and found the following differences:

Path Length:

  • SPC/NCDC have a 7.8 mile path length. NCDC has that length all in Turner County.
  • Grazulis has a path length of 15 miles.
  • Storm Data lists no path length.

Max Width:

  • SPC/NCDC have a width of 647 yards.
  • Grazulis lists a width of 500 yards.


      The Storm Prediction Center

      NCDC Storm Events Database

      June 1965 Storm Data Publication


      Grazulis, Thomas P. (1993). Significant Tornadoes 1680-1991: A Chronology and Analysis of Events. St. Johnsbury, VT: The Tornado Project of Environmental Films. Page 1077.

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