Tornado record · Original Fujita scale
F3 tornado, McIntosh County, North Dakota, July 31, 1966
RatingF3
Deaths2
Injuries4
Length26.4 mi
Width280 yd
Path
Drawn as a straight line from the recorded start point (46.00, -99.47) to the end point (45.72, -99.08), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- July 31, 1966, 7:30 PM (as recorded, Central Standard Time)
- Rating
- F3
- States
- North Dakota, South Dakota
- Counties
- McIntosh County, McPherson County
- Path
- 26.4 miles long, up to 280 yards wide
- Casualties
- 2 deaths, 4 injuries
Other tornadoes on July 31, 1966
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Jul 31, 1966 | F2 | South Dakota | 2.3 mi | 253 yd | 1 | 3 |
| Jul 31, 1966 | F2 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jul 31, 1966 | F1 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jul 31, 1966 | F1 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jul 31, 1966 | F0 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jul 31, 1966 | F0 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jul 31, 1966 | F0 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.