Tornado record · Original Fujita scale
F4 tornado, Washington County, Mississippi, April 17, 1978
RatingF4
Deaths0
Injuries3
Length3.6 mi
Width100 yd
Path
Drawn as a straight line from the recorded start point (33.47, -91.00) to the end point (33.50, -90.95), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- April 17, 1978, 11:00 PM (as recorded, Central Standard Time)
- Rating
- F4
- States
- Mississippi
- Counties
- Washington County
- Path
- 3.6 miles long, up to 100 yards wide
- Casualties
- 0 deaths, 3 injuries
Other tornadoes on April 17, 1978
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Apr 17, 1978 | F3 | Mississippi | 18.5 mi | 100 yd | 0 | 2 |
| Apr 17, 1978 | F3 | Mississippi | 4.5 mi | 100 yd | 0 | 0 |
| Apr 17, 1978 | F2 | Oklahoma | 9 mi | 40 yd | 0 | 0 |
| Apr 17, 1978 | F2 | Oklahoma | 7.8 mi | 60 yd | 0 | 0 |
| Apr 17, 1978 | F2 | Oklahoma | 10.7 mi | 40 yd | 0 | 0 |
| Apr 17, 1978 | F2 | Oklahoma | 12.2 mi | 100 yd | 0 | 0 |
| Apr 17, 1978 | F2 | Louisiana | 5.4 mi | 100 yd | 0 | 14 |
| Apr 17, 1978 | F2 | Arkansas | 53.8 mi | 250 yd | 0 | 7 |
| Apr 17, 1978 | F2 | Arkansas | 9.1 mi | 500 yd | 0 | 3 |
| Apr 17, 1978 | F2 | Mississippi | 34.6 mi | 100 yd | 0 | 2 |
| Apr 17, 1978 | F0 | Arkansas | 0.1 mi | 27 yd | 0 | 0 |
| Apr 17, 1978 | F0 | Tennessee | 0.2 mi | 220 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.