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EF2 tornado in Louisa County, Iowa

Tornado March 6, 2017 · Louisa County, Iowa

EF2

Rating

0.3 mi

Path length

150 yd

Path width

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 EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 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 touched down west of Grandview Iowa, and broke off wooden power poles about 3 feet off the ground as well as uprooting a few trees and breaking tree limbs. A semi was blown into a ditch in the same area.

The wider storm

A line of severe storms tracked east over eastern Iowa, northwest Illinois, and northeast Missouri during the evening of March 6th. Widespread winds over 70 mph, small hail, and several tornadoes were reported. Damage from these storms included: downed trees, power poles, destroyed outbuildings, and roof damage to several homes.

Began near Grandview (41.2766, -91.2594).

Other tornadoes from the same storm system

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

EF2 Muscatine County EF2 Muscatine County EF2 Scott County EF1 Cedar County EF0 Jackson County EF0 Clinton County

Source: NOAA Storm Events Database, event 690032. Narratives are written by the National Weather Service forecast office that issued the report.

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