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EF1 tornado in Christian County, Kentucky

Tornado January 30, 2013 · Christian County, Kentucky

EF1
Rating
10.0 mi
Whole path
225 yd
Path width
$400K
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 225 yards (0.13 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

The tornado touched down along U.S. Highway 41A and travelled northeast to U.S. Highway 41. Hundreds of trees were snapped or uprooted. One grain bin was blown 150 feet. Several barns or sheds were levelled. At least two dozen power poles were broken along Highway 1027 and U.S. Highway 41. Several homes received mainly minor roof damage. The tornado had estimated peak winds of 105 mph. The average path width was 175 yards.

The wider storm

A line of thunderstorms intensified as it moved east from Missouri. The storms increased as they moved into slightly more unstable air associated with a strengthening low level jet. The storms were aided by the approach of a strong upper level trough. Despite weak instability, winds of 90 knots in the lowest 3 kilometers coupled with extreme shear values resulted in damaging winds and isolated tornadoes with the strongest storms. Ahead of the thunderstorms, strong southerly gradient winds gusted up to 45 mph, mainly along and southeast of a line from Owensboro to Murray.

Began near Hopkinsville (36.7342, -87.4800).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 424830. Narratives are written by the National Weather Service forecast office that issued the report.

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