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EF0 tornado in Clark County, Indiana

Tornado February 28, 2011 · Clark County, Indiana

EF0

Rating

3.0 mi

Whole path

100 yd

Path width

$7K

Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

An NWS storm survey confirmed a tornado which crossed the Ohio River from Clark county, IN to Jefferson county, KY. The tornado was rated an EF-0 in Indiana and an EF-1 in Kentucky. This tornado touched down in Clark County near Centennial Boulevard. Large hardwood trees were uprooted along the tornado's path towards Utica. A house on Middle Road had a tin roof blown off and thrown 200 yards. A couple of garage doors were dented in. Winds along this part of the tornado path were estimated to be 85 mph with a path width of 100 yards.

The wider storm

A cold front moved through southern Indiana and central Kentucky on the morning of February 28. A strong low low level jet developed ahead of this front with winds of 60-80 knots at 2-3 thousand feet, resulting in very high speed shear and storm relative helicity values. A squall line with bowing segments developed to the west of the Louisville forecast area and crossed the region during the early to mid morning hours. This line produced multiple tornadoes across the region as well as straight line wind damage.

Began near Watson (38.3344, -85.6886).

Other tornadoes from the same storm system

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

EF2 Dubois County

Source: NOAA Storm Events Database, event 287418. Narratives are written by the National Weather Service forecast office that issued the report.

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