SPC Stats

Path length: 26.6 miles

Width:  27 yards

Fatalities:  0

Injuries:  7

Rating:  F4

County:  Butler, Bremer

Tornado Path

SPC coordinates:  Start: 42.78 / -93.00   End:  42.88 / -92.47      

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

A significant tornado traveled through parts of Butler and Bremer Counties in Iowa on September 1, 1961.  There is limited information in the Storm Data entry about this event.  It only states the movement to the ENE ending in NW Bremer County and losses were over $1,000,000.  Per Thomas Grazulis in Significant Tornadoes, the tornado began NW of Dumont and ended NE of Horton. Several farms along the path were “leveled”.  It was reported at one farm that fruit jars were “sucked out of the basement” after the house was swept away.  A car was carried 100 feet in the air.  The estimated width per Storm Data and SPC was around 25-27 yards.  Grazulis estimated the width was closer to 300 yards.  There were 7 injuries reported with this event and zero fatalities.  

Newspaper Clippings


We gathered information for this event from the SPC & NCDC Databases, the September 1961 Storm Data Publication and Thomas Grazulis in Significant Tornadoes and found the following differences:

Path Length:

  • SPC/NCDC have a 26.6 mile path length.
  • Grazulis has a 29 mile path.
  • Storm Data has a 28 mile path.


  • SPC/NCDC has a 27 yard width.
  • Storm Data has a 25 yard width.
  • Grazulis has a 300 yard width.

Time Stamp:

  • NCDC has a listing for Bremer County where the tornado ended.  The time stamp is wrong.  They have 15:40 CST.  The tornado began at 18:00 CST in Butler County and ended in Bremer County.


      The Storm Prediction Center

      NCDC Storm Events Database

      September 1961 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 1038.

      Questions or comments about this summary?  Contact us here!

      Note:  There are some images/videos in our summaries that were licensed to us to be used only on this website. If you would like to use an image/video in your project or blog, please contact us and we will grant permission if possible.

      Newspaper clips are embedded via newspapers.com. Please see their terms and conditions.


      Would you like to see more summaries like this one?  Support Tornado Talk on Patreon! Become a Patron!

      1 Comment

      Weather History: September 1st – Weather History · September 2, 2021 at 1:02 pm

      […] swept away. There were 7 injuries reported with this event and zero fatalities.  Click HERE for more information from […]

      Leave a Reply

      Avatar placeholder
      You cannot copy content of this page