Tornado record · Original Fujita scale

F4 tornado, McHenry County, Illinois, April 21, 1967

RatingF4

Deaths1

Injuries100

Length8.8 mi

Width150 yd

See tornadoes near here

Map

Path

The path

Drawn as a straight line from the recorded start point (42.15, -88.27) to the end point (42.22, -88.10), which is all NOAA's record holds. The real track may have curved.

The record

Date: April 21, 1967, 5:00 PM (as recorded, Central Standard Time)
Rating: F4
States: Illinois
Counties: McHenry County, Lake County
Path: 8.8 miles long, up to 150 yards wide
Casualties: 1 deaths, 100 injuries

Same day

Other tornadoes on April 21, 1967

Tornadoes, newest first
Date	Rating	State	Path length	Width	Deaths	Injuries
Apr 21, 1967	F4	Missouri	59 mi	500 yd	0	2
Apr 21, 1967	F4	Illinois	25.5 mi	1,200 yd	24	450
Apr 21, 1967	F4	Illinois	15 mi	200 yd	33	500
Apr 21, 1967	F4	Michigan	12 mi	50 yd	0	8
Apr 21, 1967	F3	Missouri	14.6 mi	440 yd	0	0
Apr 21, 1967	F3	Iowa	0.1 mi	200 yd	0	0
Apr 21, 1967	F3	Michigan	13.6 mi	400 yd	0	32
Apr 21, 1967	F2	Missouri	8.4 mi	90 yd	0	0
Apr 21, 1967	F2	Missouri	6.3 mi	50 yd	0	7
Apr 21, 1967	F2	Missouri	3 mi	200 yd	0	0
Apr 21, 1967	F2	Missouri	20.4 mi	100 yd	0	0
Apr 21, 1967	F2	Iowa	32.8 mi	100 yd	0	0
Apr 21, 1967	F2	Illinois	25.1 mi	300 yd	0	0
Apr 21, 1967	F2	Illinois	4.5 mi	300 yd	0	0
Apr 21, 1967	F2	Illinois	5.6 mi	77 yd	0	0
Apr 21, 1967	F2	Illinois	0.3 mi	30 yd	0	1
Apr 21, 1967	F2	Illinois	2.68 mi	115 yd	0	5
Apr 21, 1967	F2	Indiana	6.3 mi	10 yd	0	2
Apr 21, 1967	F2	Illinois	0.3 mi	10 yd	0	0
Apr 21, 1967	F2	Michigan	18.6 mi	50 yd	0	4
Apr 21, 1967	F2	Michigan	14.5 mi	500 yd	0	1
Apr 21, 1967	F2	Michigan	1 mi	27 yd	0	0
Apr 21, 1967	F2	Michigan	0.1 mi	33 yd	0	6
Apr 21, 1967	F2	Michigan	0.3 mi	27 yd	0	0
Apr 21, 1967	F2	Michigan	10.9 mi	10 yd	0	0
Apr 21, 1967	F1	Missouri	0.2 mi	10 yd	0	0
Apr 21, 1967	F1	Indiana	0.1 mi	10 yd	0	0
Apr 21, 1967	F1	Missouri	0.1 mi	50 yd	0	0
Apr 21, 1967	F1	Missouri	0.1 mi	10 yd	0	0
Apr 21, 1967	F1	Illinois	0.3 mi	30 yd	0	0
Apr 21, 1967	F1	Illinois	1 mi	13 yd	0	0
Apr 21, 1967	F1	Illinois	5.6 mi	100 yd	0	0
Apr 21, 1967	F1	Illinois	0.5 mi	150 yd	0	0
Apr 21, 1967	F1	Illinois	2 mi	40 yd	0	0
Apr 21, 1967	F1	Illinois	0.5 mi	10 yd	0	0
Apr 21, 1967	F1	Illinois	6.8 mi	20 yd	0	0
Apr 21, 1967	F1	Illinois	0.3 mi	10 yd	0	0
Apr 21, 1967	F1	California	0.1 mi	10 yd	0	0
Apr 21, 1967	F1	Michigan	0.1 mi	10 yd	0	0
Apr 21, 1967	F1	Illinois	0.1 mi	10 yd	0	0
Apr 21, 1967	F0	Missouri	1 mi	10 yd	0	0
Apr 21, 1967	F0	Missouri	0.1 mi	10 yd	0	0
Apr 21, 1967	F0	Missouri	0.1 mi	10 yd	0	0
Apr 21, 1967	F0	Michigan	0.1 mi	10 yd	0	0
Apr 21, 1967	F0	Indiana	0.1 mi	10 yd	0	0

Nearby

Tornado history nearby

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