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EF0 tornado in Catoosa County, Georgia

Tornado October 25, 2010 · Catoosa County, Georgia

EF0
Rating
0.2 mi
Path length
75 yd
Path width
$40K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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 storm survey conducted by the National Weather Service in Peachtree City, Georgia confirmed that an EF0 tornado had touched down approximately four miles northeast of Ringgold along Keiths Road. The tornado traveled east-northeast for only 300 yards before lifting. Maximum path width was determined to be 75 yards with maximum winds gusts estimated to be 80 mph. Two homes, two chicken houses, and a barn suffered minor roof damage from the tornado. In addition, approximately 50 trees were downed along the path of the tornado.

The wider storm

October 25th began a 3-day long period of active convective weather for north and central Georgia. The culprit was a developing intense upper-level low and associated surface low located across the northern plains, which moved slowly east toward the Great Lakes and Ohio Valley region by the 27th. Record low surface pressures were observed with this system in Wisconsin on the 26th. A strong cold front developed from the surface cyclone southward into the Arklatex region by the 26th. Deep southerly flow in advance of the system brought unseasonably warm, moist air well northward across the eastern U.S. Even though the parent system was well north of Georgia, strong dynamics, a strong low-level jet, and the warm, unstable air mass provided a near perfect environment for scattered to numerous thunderstorms. The slow movement of the system resulted in three consecutive days of strong to severe thunderstorms across north and central Georgia.

On the 25th, a leading vigorous short wave was tracking across the southern states. This short wave resulted in severe thunderstorms and several tornadoes from east Texas eastward to Georgia. Two tornadoes were confirmed with this event in northwest Georgia on the 25th, including an EF1 in southern Dade county. These tornadoes were part of a quasi-linear convective system (QLCS) or line of severe thunderstorms that moved across north Georgia during the early morning hours. The line dissipated by late morning across east and central Georgia. However, individual strong to severe thunderstorms redeveloped once again during afternoon heating across east central and southeast Georgia producing large hail and damaging wind gusts. No tornadoes were observed with the second round of activity, however.

Unusually for October, this event ended up being one of the most significant severe weather outbreaks for the year.

Began near Keith (34.9458, -85.0404).

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 264224. Narratives are written by the National Weather Service forecast office that issued the report.

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