Tornado record · Original Fujita scale
F3 tornado, Grady County, Oklahoma, April 20, 1974
RatingF3
Deaths0
Injuries3
Length63.6 mi
Width100 yd
Path
Drawn as a straight line from the recorded start point (35.27, -97.93) to the end point (35.63, -96.90), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- April 20, 1974, 3:00 PM (as recorded, Central Standard Time)
- Rating
- F3
- States
- Oklahoma
- Counties
- Grady County, Canadian County, Oklahoma County, Lincoln County
- Path
- 63.6 miles long, up to 100 yards wide
- Casualties
- 0 deaths, 3 injuries
Other tornadoes on April 20, 1974
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Apr 20, 1974 | F3 | Nebraska | 63.5 mi | 880 yd | 0 | 6 |
| Apr 20, 1974 | F3 | Nebraska | 41.6 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F3 | Oklahoma | 6.1 mi | 100 yd | 0 | 0 |
| Apr 20, 1974 | F2 | Nebraska | 46.8 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F2 | Kansas | 1 mi | 200 yd | 0 | 0 |
| Apr 20, 1974 | F1 | Nebraska | 1.2 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F1 | Kansas | 14 mi | 100 yd | 0 | 3 |
| Apr 20, 1974 | F1 | Nebraska | 0.1 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F1 | Texas | 0.5 mi | 100 yd | 0 | 0 |
| Apr 20, 1974 | F1 | Nebraska | 0.1 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F1 | South Dakota | 0.5 mi | 10 yd | 0 | 0 |
| Apr 20, 1974 | F0 | Kansas | 41.3 mi | 33 yd | 0 | 0 |
| Apr 20, 1974 | F0 | Kansas | 0.3 mi | 17 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.