Tornado record · Original Fujita scale

F1 tornado, Johnson County, Wyoming, May 9, 1977

RatingF1

Deaths0

Injuries0

Length4.5 mi

Width27 yd

See tornadoes near here

Map

Path

The path

Drawn as a straight line from the recorded start point (44.22, -106.73) to the end point (44.28, -106.78), which is all NOAA's record holds. The real track may have curved.

The record

Date: May 9, 1977, 5:00 PM (as recorded, Central Standard Time)
Rating: F1
States: Wyoming
Counties: Johnson County
Path: 4.5 miles long, up to 27 yards wide
Casualties: 0 deaths, 0 injuries

Same day

Other tornadoes on May 9, 1977

Tornadoes, newest first
Date	Rating	State	Path length	Width	Deaths	Injuries
May 9, 1977	F1	Texas	0.1 mi	10 yd	0	0
May 9, 1977	F1	Wyoming	0.1 mi	10 yd	0	0

Nearby

Tornado history nearby

Johnson County

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