The September 1, 1961 tornado
F4Butler and Bremer counties, Iowa
An F4 tornado on a 26.6-mile path that injured 7. It was one of 4 tornadoes recorded in the U.S. that day.
Watch how it happenedF4 tornado · September 1, 1961
How it happened
Follow the tornado’s path, minute by minute.
The tornado
- Rating
- F4
- Fujita scale
- Path length
- 26.6 mi
- Width up to 27 yards
- Killed
- 0
- Along the whole path
- Injured
- 7
- Along the whole path
- Date and time
- Friday, September 1, 1961
- 6:00 PM CST
Counties on its path
Storm Prediction Center severe weather database. Path drawn as a straight line from the recorded start to end point.