Tornado record · Original Fujita scale

F4 tornado, Chisago County, Minnesota, May 21, 1957

RatingF4

Deaths0

Injuries2

Length9.2 mi

Width100 yd

See tornadoes near here

Map

Path

The path

Drawn as a straight line from the recorded start point (45.58, -92.87) to the end point (45.72, -92.87), which is all NOAA's record holds. The real track may have curved.

The record

Date: May 21, 1957, 1:00 PM (as recorded, Central Standard Time)
Rating: F4
States: Minnesota
Counties: Chisago County
Path: 9.2 miles long, up to 100 yards wide
Casualties: 0 deaths, 2 injuries

Same day

Other tornadoes on May 21, 1957

Tornadoes, newest first
Date	Rating	State	Path length	Width	Deaths	Injuries
May 21, 1957	F4	Missouri	9.1 mi	500 yd	7	75
May 21, 1957	F3	Missouri	10.2 mi	440 yd	0	2
May 21, 1957	F3	Missouri	22.2 mi	400 yd	8	50
May 21, 1957	F3	Illinois	8.5 mi	200 yd	0	0
May 21, 1957	F3	Illinois	13.7 mi	120 yd	0	0
May 21, 1957	F2	Missouri	14.5 mi	500 yd	0	0
May 21, 1957	F2	Illinois	19.7 mi	150 yd	0	0
May 21, 1957	F2	Iowa	8.9 mi	100 yd	0	0
May 21, 1957	F2	Illinois	3.6 mi	150 yd	0	0
May 21, 1957	F2	Missouri	5.1 mi	500 yd	0	0
May 21, 1957	F2	Missouri	7.4 mi	400 yd	0	2
May 21, 1957	F2	Indiana	0.1 mi	10 yd	0	2
May 21, 1957	F1	Minnesota	3.8 mi	300 yd	0	0
May 21, 1957	F1	Missouri	13 mi	33 yd	0	0
May 21, 1957	F1	Missouri	0.2 mi	17 yd	0	0
May 21, 1957	F1	Missouri	23.7 mi	33 yd	0	0
May 21, 1957	F1	Missouri	0.1 mi	10 yd	0	0

Nearby

Tornado history nearby

Chisago County

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