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EF1 tornado in Hubbard County, Minnesota

Tornado June 6, 2008 · Hubbard County, Minnesota

EF1

Rating

2.4 mi

Path length

150 yd

Path width

$400K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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 tracked to the north-northeast for nearly 3 miles and lifted about 1 mile east-southeast of Lake George by 1003 am CDT. Numerous large trees were knocked down or uprooted across Schoolcraft Lake Road and along county road 4. Peak wind speeds were estimated at 105 mph with a maximum width of 150 yards.

The wider storm

A vertically stacked cold-core low pressure system moved into the Red River Valley and brought ideal conditions for low topped mini supercells. A negatively tilted 500 mb trough, diffluent height field, and a strong upper level disturbance were all present. At the surface, there was even a warm front east of the low, toward Hubbard and Wadena Counties.

Began near Lake George (47.1600, -94.9900).

Other tornadoes from the same storm system

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

EF3 Hubbard County EF2 Wadena County EF1 Hubbard County EF0 Hubbard County

Source: NOAA Storm Events Database, event 118403. Narratives are written by the National Weather Service forecast office that issued the report.

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