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F1 tornado in Roseau County, Minnesota

Tornado August 5, 2006 · Roseau County, Minnesota

Rating

5.0 mi

Path length

50 yd

Path width

$100K

Crop damage

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 F1 means. This tornado was rated on Fujita’s original scale, used until 2007. F1 meant moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken; the scale paired it with winds of 73–112 mph, figures later judged too high, especially toward the top of the scale, and revised downward in the Enhanced Fujita scale. Ratings then, as now, came from the damage.

What the National Weather Service wrote

Tornado number one of a series tracked due east for about 5 miles, starting about 2 miles north and 8 miles west of Warroad to about 3 miles west-northwest of Warroad. Eyewitnesses reported that there were up to 3 funnels pendant from the same base but generally just one in contact with the ground. Damage was confined to forest, pastureland, and hay fields. Peak wind speeds were estimated at 100 mph.

Began near Salol (48.9167, -95.4833).

Other tornadoes from the same storm system

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

F3 Roseau County F1 Roseau County F0 Roseau County

Source: NOAA Storm Events Database, event 5530517. Narratives are written by the National Weather Service forecast office that issued the report.

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