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EF1 tornado in Calhoun County, South Carolina

Tornado April 13, 2020 · Calhoun County, South Carolina

EF1
Rating
10.2 mi
Whole path
700 yd
Path width

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 700 yards (0.40 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 in Orangeburg Co SC, where it was rated as EF-2. The tornado crossed into Calhoun Co near Four Holes Rd and moved to the northeast and dissipated near Old State Rd and Houcks Gin Rd. In Calhoun Co, the tornado was rated EF-1, knocking down numerous trees.

The wider storm

A squall line rolled through the region during the early morning hours of April 13, 2020. Strong instability and shear led to numerous severe thunderstorm wind gusts along with several tornadoes. In total, across central SC, there were 5 EF-3 tornadoes, 1 EF-2 tornadoes, and 1 EF-1 tornado. Two fatalities, and several injuries, occurred with the tornadoes.

Began near Cameron (33.4902, -80.6797).

Other tornadoes from the same storm system

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

EF3 Orangeburg County 2 deadEF3 Barnwell CountyEF3 Barnwell CountyEF1 Richland County

Source: NOAA Storm Events Database, event 884329. Narratives are written by the National Weather Service forecast office that issued the report.

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