Tornado record · Original Fujita scale
F2 tornado, Allamakee County, Iowa, May 4, 1964
RatingF2
Deaths0
Injuries0
Length9.2 mi
Width200 yd
Path
Drawn as a straight line from the recorded start point (43.22, -91.20) to the end point (43.32, -91.07), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- May 4, 1964, 6:10 PM (as recorded, Central Standard Time)
- Rating
- F2
- States
- Iowa
- Counties
- Allamakee County
- Path
- 9.2 miles long, up to 200 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on May 4, 1964
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 4, 1964 | F2 | Wisconsin | 9.7 mi | 200 yd | 0 | 2 |
| May 4, 1964 | F2 | Iowa | 2.3 mi | 200 yd | 0 | 1 |
| May 4, 1964 | F2 | Wisconsin | 12.6 mi | 200 yd | 0 | 2 |
| May 4, 1964 | F2 | Iowa | 4.7 mi | 200 yd | 0 | 2 |
| May 4, 1964 | F2 | Wisconsin | 7.7 mi | 100 yd | 0 | 0 |
| May 4, 1964 | F1 | Wisconsin | 2.2 mi | 127 yd | 0 | 0 |
| May 4, 1964 | F1 | Wisconsin | 1 mi | 27 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.