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EF1 tornado in Watauga County, North Carolina

Tornado September 25, 2024 · Watauga County, North Carolina

EF1
Rating
0.6 mi
Path length
75 yd
Path width
$8K
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 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

An EF 1 tornado touched down near the intersection of Birch Drive and Hill Street in Blowing Rock, then traveled northeast for approximately 0.6 miles before lifting northeast east of Chetola Lake Drive. Several softwood and a few hardwood trees were uprooted and snapped along the path of the tornado. A few free standing tents were also blown down.

The wider storm

A nearly stationary front that extended south from West Virginia into Western Virginia and North Carolina Piedmont served as the focus for thunderstorm development during the afternoon of September 25. Some clearing allowed for an increase in instability, but not quite enough to support widespread severe thunderstorms. Favorable upper level divergence was also present over the area as an upper low closed off over the Middle Mississippi Valley, and allowed for scattered storms to strengthen and cause isolated instances of wind damage and a tornado in Watauga county, which was only the fourth ever recorded since 1950. Southeasterly windflow around high pressure off the Atlantic coast brought deep moisture to the central Appalachians, which supported heavy rain within the thunderstorms. Some storms produced rainfall rates of three to four inches per hour, and passed repeatedly over the same locations.

Began near Blowing Rock (36.1364, -81.6769).

Source: NOAA Storm Events Database, event 1211599. Narratives are written by the National Weather Service forecast office that issued the report.

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