Tornado record · Original Fujita scale
F1 tornado, Grundy County, Iowa, July 6, 1977
RatingF1
Deaths0
Injuries0
Length0.5 mi
Width10 yd
Path
Drawn as a straight line from the recorded start point (42.28, -92.63) to the end point (42.28, -92.63), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- July 6, 1977, 5:00 PM (as recorded, Central Standard Time)
- Rating
- F1
- States
- Iowa
- Counties
- Grundy County
- Path
- 0.5 miles long, up to 10 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on July 6, 1977
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Jul 6, 1977 | F3 | North Dakota | 17.2 mi | 10 yd | 0 | 0 |
| Jul 6, 1977 | F1 | Pennsylvania | 2 mi | 40 yd | 0 | 0 |
| Jul 6, 1977 | F1 | Pennsylvania | 1 mi | 30 yd | 0 | 0 |
| Jul 6, 1977 | F1 | Michigan | 1.5 mi | 30 yd | 0 | 0 |
| Jul 6, 1977 | F0 | Florida | 0.1 mi | 10 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.