TwisterTrack
EF4Historical Record

EF4 Tornado — Delaware County, Iowa — August 12, 1974

Delaware County, IA

400 yd wide5.0 mi longmoved N
Shaded band = damage-path width · animated dot traces direction of travel

Event stats

EF ratingEF4
Date & timeAugust 12, 1974 · 4:20 PM
Path length5.0 mi
Max width400 yd
Injuries12
Fatalities0

Details

A EF4 tornado was recorded in Delaware County, IA, tracking roughly 5.0 miles with a maximum width of about 400 yards. The historical record notes 12 injuries and no fatalities. Details are drawn from NOAA/SPC and may be incomplete or generalized.

Historical record from public weather datasets.

Record details

Counties affected
Delaware County
Start coordinates
42.3500, -91.4800
End coordinates
42.3500, -91.4800
Source
NOAA/SPC
Data status
Historical Record

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