World Weather/Climate Extremes Website

Tornado: Longest-Lasting/Greatest Distance Traveled Single Tornado

Record Value 352.4 km (219 mi.) / 3 ½ hours duration
Date of Event 18/3/1925
Geospatial Location Ellington, Missouri to Princeton Indiana

Reference

Grazulis, T.P., 1993: Significant Tornadoes, (St. Johnsbury, VT: The Tornado Project of Environmental Films), pp. 1326

Discussion

The so-called Tri-State Tornado traveled an exact heading N 69° E for 183 of its 219 mile track. It was on the ground for 3 ½ hours and killed an estimated 695 people. Its average forward (not rotational) speed was 27.7 m/s (62 mph) with a maximum speed of 32.6 m/s (73 mph).

Ellington, Missouri to Princeton Indiana

Track Map of the 18 March 1925 Tri-State Tornado (black line) and photo of the ruins of the Longfellow School where 17 children were killed.

Ellington, Missouri to Princeton Indiana

Track Map of the 18 March 1925 Tri-State Tornado (black line) and photo of the ruins of the Longfellow School where 17 children were killed.