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EF0 tornado in Plymouth County, Iowa

Tornado October 4, 2013 · Plymouth County, Iowa

EF0
Rating
12.4 mi
Whole path
400 yd
Path width
$450K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Dakota County, Nebraska → Union County, South Dakota → Union County, South Dakota → Plymouth County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 400 yards (0.23 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

A tornado crossed the Big Sioux River into Plymouth County from Union County in South Dakota. The tornado caused no reported damage in Plymouth County before dissipating.

The wider storm

Thunderstorms produced eleven tornadoes, several of them causing damage, which tracked wholly or partly in northwest Iowa during the afternoon and early evening of October 4th. There were also two reports of large hail and one report of non tornadic damaging thunderstorm winds.

Began near Millnerville (42.6330, -96.5190).

Other tornadoes from the same storm system

10 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 475789. Narratives are written by the National Weather Service forecast office that issued the report.

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