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EF1 tornado in Ionia County, Michigan

Tornado June 22, 2015 · Ionia County, Michigan

EF1
Rating
4.6 mi
Path length
100 yd
Path width
5
Injuries
$3.2M
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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 NWS storm survey determined that an EF-1 tornado struck Portland in Ionia county. The estimated peak wind speed was 110 mph. There was damage to homes and businesses throughout portions of Portland and more than 50 structures were impacted with roof damage and broken windows. Dozens of trees were snapped and uprooted. Three churches were heavily damaged. There were 5 minor injuries and no fatalities.

The wider storm

A NWS storm survey confirmed that an EF-1 tornado struck Portland in Ionia county between 1:30 pm and 1:36 pm. It had peak winds of 110 mph with a path length a little over 4 miles. The path width was 50 to 100 yards. Three churches incurred heavy damage and dozens of trees were uprooted and snapped. There were 5 minor injuries and no fatalities. Multiple homes had significant roof damage and a baseball field was heavily damaged. It was estimated that the tornado caused 3.2 million dollars in damage. Severe thunderstorms also produced several reports of damaging wind gusts.

Began near Kent Corner (42.8900, -84.9600).

Source: NOAA Storm Events Database, event 583118. Narratives are written by the National Weather Service forecast office that issued the report.

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