Tornado record · Original Fujita scale

F3 tornado, Keokuk County, Iowa, May 9, 1959

RatingF3

Deaths0

Injuries0

Length6.6 mi

Width200 yd

See tornadoes near here

Map

Path

The path

Drawn as a straight line from the recorded start point (41.20, -91.98) to the end point (41.28, -91.90), which is all NOAA's record holds. The real track may have curved.

The record

Date: May 9, 1959, 6:15 PM (as recorded, Central Standard Time)
Rating: F3
States: Iowa
Counties: Keokuk County
Path: 6.6 miles long, up to 200 yards wide
Casualties: 0 deaths, 0 injuries

Same day

Other tornadoes on May 9, 1959

Tornadoes, newest first
Date	Rating	State	Path length	Width	Deaths	Injuries
May 9, 1959	F4	Oklahoma	6.2 mi	900 yd	7	12
May 9, 1959	F3	Oklahoma	23.2 mi	880 yd	0	3
May 9, 1959	F3	Oklahoma	23.4 mi	50 yd	0	0
May 9, 1959	F3	Iowa	17.8 mi	250 yd	0	1
May 9, 1959	F2	Oklahoma	19.1 mi	300 yd	0	0
May 9, 1959	F2	Oklahoma	0.8 mi	880 yd	0	0
May 9, 1959	F2	Oklahoma	0.1 mi	10 yd	0	0
May 9, 1959	F2	Missouri	0.5 mi	50 yd	0	0
May 9, 1959	F2	Iowa	0.1 mi	67 yd	0	0
May 9, 1959	F1	Oklahoma	7.7 mi	10 yd	0	0
May 9, 1959	F1	Oklahoma	4.9 mi	10 yd	0	0
May 9, 1959	F1	Kansas	7.8 mi	200 yd	0	0
May 9, 1959	F1	Oklahoma	0.1 mi	10 yd	0	0
May 9, 1959	F1	Illinois	0.1 mi	10 yd	0	0
May 9, 1959	F1	Oklahoma	0.1 mi	10 yd	0	0
May 9, 1959	F1	Iowa	4.9 mi	200 yd	0	0
May 9, 1959	F0	New Mexico	0.1 mi	10 yd	0	0
May 9, 1959	F0	New Mexico	0.1 mi	10 yd	0	0
May 9, 1959	F0	Missouri	0.2 mi	17 yd	0	0
May 9, 1959	F0	Oklahoma	0.1 mi	10 yd	0	0

Nearby

Tornado history nearby

Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.