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EF0 tornado in St. Louis County, Missouri

Tornado April 1, 2024 · St. Louis County, Missouri

EF0
Rating
2.0 mi
Path length
332 yd
Path width
$100K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 332 yards (0.19 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 EF0 tornado with peak winds of 85 mph touched down just northeast of the Interstate 64 and Highway 340 interchange. The tornado traveled 2 miles east-northeast for approximately 3 minutes before lifting just west of Highway 141. Several tree limbs were damaged with minor damage to the roofs of multiple residences. Overall, the path length was 2.01 miles and the max path width was 332 yards. No deaths or injuries were reported.

The wider storm

Through the day of April 1, a warm front left much of the area in a warm, moist, and increasingly unstable airmass. This environment supported multiple waves of severe thunderstorms from the evening of April 1st through the early morning of April 2nd. Notable reports include large hail up to 2 inches in diameter, isolated damaging winds, a brief EF-0 tornado, and instances of flash flooding.

Began near South Bellefontaine (38.6530, -90.5510).

Source: NOAA Storm Events Database, event 1172327. Narratives are written by the National Weather Service forecast office that issued the report.

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