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EF1 tornado in Burnett County, Wisconsin

Tornado June 17, 2010 · Burnett County, Wisconsin

EF1

Rating

8.1 mi

Whole path

300 yd

Path width

Injuries

$293K

Damage as recorded

NOAA records this tornado county by county. Its path ran through Chisago County, Minnesota → Pine County, Minnesota → Burnett County → Burnett County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 300 yards (0.17 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 crossed the St. Croix River into southwest Burnett County Wisconsin from Pine County Minnesota, about 1.5 miles north of Highway 70, and dissipated about 3.5 miles west-northwest of Grantsburg, WI. The tornado moved into Wisconsin around 9 pm. EF1 damage was assigned due to damage to a home near Grantsburg WI, along with significant tree damage.

The wider storm

A powerful mid summer storm system over the western Dakotas, combined with warm moist air surging northward from the Gulf of Mexico was responsible for the widespread severe weather outbreak across the Upper Midwest.

Began near Grantsburg (45.7977, -92.7683).

Source: NOAA Storm Events Database, event 238875. Narratives are written by the National Weather Service forecast office that issued the report.

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