EF1 tornado — Madison County, Indiana

EF1 tornado in Madison County, Indiana

Tornado July 20, 2018 · Madison County, Indiana

EF1

Rating

0.6 mi

Path length

30 yd

Path width

$30K

Damage as recorded

$500

Crop damage

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The path drawn at its surveyed width of 30 yards (0.02 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

An EF-1 tornado was observed and recorded via video on Friday afternoon in Moonville in Madison County. Madison County Emergency Management, in coordination with the National Weather Service in Indianapolis, conducted a storm survey and determined a tornado touched down and destroyed a barn, caused roof damage to an adjacent home, produced tree damage, and flipped a storage shed onto its side. The track of the tornado began in a soybean field to the west-southwest of the barn. The maximum winds were estimated at 100 mph.

The wider storm

A frontal system moved through central Indiana during the afternoon of July 20th, producing thunderstorms. Some of the storms were severe with damaging winds, large hail, and one EF-1 tornado in Madison County.

Source: NOAA Storm Events Database, event 777030. Narratives are written by the National Weather Service forecast office that issued the report.

EF1 tornado in Madison County, Indiana

What the National Weather Service wrote

The wider storm

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