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EF1 tornado in Glascock County, Georgia

Tornado April 10, 2009 · Glascock County, Georgia

EF1
Rating
4.6 mi
Whole path
200 yd
Path width
$102K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Glascock County → Jefferson County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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 confirmed that yet a second tornado touched down in Glascock county during the evening of April 10th. This tornado was determined to be an EF1 and touched down in the far eastern part of the county, approximately 4.5 miles east-northeast of Gibson. The tornado continued on an almost due eastward path for five miles into northern Jefferson county, lifting approximately three miles northeast of Stapleton. The maximum path width was determined to be 200 yards with maximum winds estimated at 110 mph. Damage within Glascock county from this tornado was confined to several downed trees.

The wider storm

A vigorous upper closed low was moving from the mid-south and Mississippi valley region into the mid-Atlantic and southeast U.S. A strong cold front accompanied the upper system. A strong low-level jet in advance of these weather systems transported warm, moist Gulf air northward into the region. With strong dynamics, hence shear, combined with an unusually moist, unstable atmosphere, the atmosphere was primed for a major weather outbreak. One round of thunderstorms passed through north Georgia during the early morning hours. A few minor severe weather events accompanied this system in northwest Georgia. Partial clearing followed the morning convection, allowing temperatures to soar into the mid 70s across much of north and central Georgia in advance of the main weather system. Scattered to numerous discrete supercell thunderstorms developed during mid-afternoon in northwest Georgia and progressed east and southeast across the remaining portions of the county warning area during the evening hours. Severe thunderstorms and tornadoes lingered into the early morning hours of the 11th across the southern counties of central Georgia. During the eight hour period from 5 pm EDT on April 10th to 1 am EDT on April 11th, a total of 14 tornadoes were confirmed to have touched down in north and central Georgia causing millions in damages. While some injuries were observed, no deaths were observed.

Began near David (33.2500, -82.5100).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 164624. Narratives are written by the National Weather Service forecast office that issued the report.

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