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EF1 tornado in St. Louis County, Missouri

Tornado May 26, 2024 · St. Louis County, Missouri

EF1
Rating
8.8 mi
Whole path
172 yd
Path width
$40K
Damage as recorded

NOAA records this tornado county by county. Its path ran through St. Louis County → Monroe County, Illinois; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 172 yards (0.10 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

A tornado touched down on East Lane, about 2.4 miles southwest of the I-270/I-55 interchange in southern St. Louis County and tracked to the southeast. It snapped off numerous tree limbs, uprooted several large trees and caused minor damage to roofs and siding on a couple of houses. However, one house sustained moderate damage when the roof over the carport was lifted off and dropped just to the left of the house. The tornado then crossed I-55. Between I-55 and the Mississippi River, just numerous snapped tree limbs and uprooted trees were noted as it moved through Oakville. Then the tornado crossed the Mississippi River into Monroe County, Illinois. The tornado was rated EF1 in St. Louis County with a path length of 5.34 miles and a max path width of 172 yards.

The wider storm

During the afternoon and early evening of May 26, 2024, ten tornadoes touched down in the St. Louis metropolitan area and southwest Illinois from a mix of supercells and QLCS modes. This occurred alongside numerous reports of large hail of up to 2.5 inches in diameter and damaging winds of up to 81 mph. Thankfully, there were no reported injuries or fatalities with these thunderstorms.

Began near Mattese (38.4850, -90.3757).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1181698. Narratives are written by the National Weather Service forecast office that issued the report.

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