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EF1 tornado in Arenac County, Michigan

Tornado August 28, 2018 · Arenac County, Michigan

EF1

Rating

0.9 mi

Path length

50 yd

Path width

$70K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 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

A tornado with estimated maximum winds of 100 mph briefly touched down a couple of miles south of Au Gres, and just west of the Point Au Gres Campground. The tornado lifted near near the Lake Huron shoreline. Dozens of mature hardwood trees were snapped and uprooted. An RV at the campground was destroyed by fallen trees. One person was briefly trapped, but was not injured.

The wider storm

Another line of thunderstorms crossed northern Michigan in the evening of the 28th. This line produced considerable wind damage, along with a handful of tornadoes.

Began near Au Gres Arpt (44.0160, -83.7057).

Other tornadoes from the same storm system

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

EF1 Ogemaw County EF0 Antrim County EF0 Arenac County

Source: NOAA Storm Events Database, event 782818. Narratives are written by the National Weather Service forecast office that issued the report.

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