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EF1 tornado in Cherokee County, Georgia

Tornado April 19, 2009 · Cherokee County, Georgia

EF1
Rating
1.5 mi
Path length
880 yd
Path width
2
Injuries
$5.0M
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 880 yards (0.50 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 damage survey conducted by the National Weather Service Forecast Office in Peachtree City, Georgia confirmed that an EF1 tornado touched down in far southeast Cherokee county near the Cobb county line in the Woodstock area. The tornado touched down near the intersection of Georgia Highway 92 and Dial Drive, then continued north-northeast along Dial Drive crossing a large section of Coleman's Bluff. The tornado lifted just south of the intersection of Windcrest Court and River Chase Drive. The total path length of the tornado was 1.5 miles with a maximum path width of 1/2 mile or 880 yards. Maximum winds were estimated to be 90 mph. EF1 tornado damage to trees and structures was observed along a 3/4 mile-long path paralleling Dial Drive beginning just north of its intersection with Georgia Highway 92. Damage was observed to 120 homes along the path of the tornado, 12 of which were completely destroyed. The majority of the damage took place in the Coleman's Bluff area. Most of the damage was the result of large trees falling on the structures. Two residents of the affected homes were injured by debris.

The wider storm

Yet another deep upper trough was translating across the south central and southeast United States accompanied by a strong Pacific cold front. Although instability was marginal for the time of year, the upper atmosphere was highly sheared with a strong low-level jet. Showers and a few thunderstorms moved across the area during the day, but it was during the late evening hours when the front moved into the area from the west that strong to severe thunderstorms developed across eastern Alabama and moved into western Georgia. The activity took on the form of a squall line with distinct bowing segments. Two EF1 tornadoes were spawned within this line of thunderstorms causing considerable damage to homes and businesses in the Columbus and Woodstock areas. The activity quickly dissipated shortly after midnight as it moved further east into central and northeast Georgia.

Began near Woodstock (34.0825, -84.4559).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 167123. Narratives are written by the National Weather Service forecast office that issued the report.

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