EF4Historical Record
EF4 Tornado — Polk County, Iowa — September 28, 1986
Polk County, IA
250 yd wide20.0 mi longmoved E
Shaded band = damage-path width · animated dot traces direction of travel
Event stats
EF ratingEF4
Date & timeSeptember 28, 1986 · 4:34 PM
Path length20.0 mi
Max width250 yd
Injuries0
Fatalities0
Details
A EF4 tornado was recorded in Polk County, IA, tracking roughly 20.0 miles with a maximum width of about 250 yards. No injuries or fatalities are noted in the historical record. Details are drawn from NOAA/SPC and may be incomplete or generalized.
Historical record from public weather datasets.
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