Tornado record · Original Fujita scale

F4 tornado, Teton County, Wyoming, July 21, 1987

RatingF4

Deaths0

Injuries0

Length24.3 mi

Width2,550 yd

See tornadoes near here

Map

Path

The path

Drawn as a straight line from the recorded start point (43.90, -110.33) to the end point (44.21, -110.09), which is all NOAA's record holds. The real track may have curved.

The record

Date: July 21, 1987, 2:50 PM (as recorded, Central Standard Time)
Rating: F4
States: Wyoming
Counties: Teton County
Path: 24.3 miles long, up to 2,550 yards wide
Casualties: 0 deaths, 0 injuries

Same day

Other tornadoes on July 21, 1987

Tornadoes, newest first
Date	Rating	State	Path length	Width	Injuries
Jul 21, 1987	F3	North Dakota	1 mi	100 yd	0
Jul 21, 1987	F2	New Jersey	0.5 mi	100 yd	3
Jul 21, 1987	F2	Wyoming	5 mi	140 yd	0
Jul 21, 1987	F1	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F1	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F1	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F1	Idaho	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	Virginia	0.2 mi	50 yd	0
Jul 21, 1987	F0	Wisconsin	0.1 mi	23 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	Minnesota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0
Jul 21, 1987	F0	North Dakota	0.2 mi	10 yd	0

Nearby

Tornado history nearby

Teton County

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