EF4Historical Record
EF4 Tornado — Butler County, Iowa — September 1, 1961
Butler County, IA
27 yd wide26.6 mi longmoved E
Shaded band = damage-path width · animated dot traces direction of travel
Event stats
EF ratingEF4
Date & timeSeptember 1, 1961 · 6:00 PM
Path length26.6 mi
Max width27 yd
Injuries7
Fatalities0
Details
A EF4 tornado was recorded in Butler County, IA, tracking roughly 26.6 miles with a maximum width of about 27 yards. The historical record notes 7 injuries and no fatalities. Details are drawn from NOAA/SPC and may be incomplete or generalized.
Historical record from public weather datasets.
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