Tornado record · Original Fujita scale
F1 tornado, Lyon County, Iowa, April 18, 2004
RatingF1
Deaths0
Injuries0
Length4 mi
Width100 yd
Path
Drawn as a straight line from the recorded start point (43.28, -96.50) to the end point (43.30, -96.42), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- April 18, 2004, 3:58 PM (as recorded, Central Standard Time)
- Rating
- F1
- States
- Iowa
- Counties
- Lyon County
- Path
- 4 miles long, up to 100 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on April 18, 2004
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Apr 18, 2004 | F1 | Minnesota | 0.5 mi | 100 yd | 0 | 0 |
| Apr 18, 2004 | F1 | Minnesota | 7 mi | 50 yd | 0 | 0 |
| Apr 18, 2004 | F0 | New York | 1 mi | 75 yd | 0 | 0 |
| Apr 18, 2004 | F0 | South Dakota | 0.1 mi | 50 yd | 0 | 0 |
| Apr 18, 2004 | F0 | South Dakota | 4 mi | 100 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Iowa | 0.1 mi | 50 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Nebraska | 0.5 mi | 40 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Wisconsin | 1 mi | 30 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Wisconsin | 3 mi | 30 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Minnesota | 0.1 mi | 15 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Nebraska | 6 mi | 50 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Minnesota | 1.5 mi | 50 yd | 0 | 0 |
| Apr 18, 2004 | F0 | Iowa | 0.1 mi | 50 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.