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F1 tornado in St. Charles County, Missouri

Tornado April 10, 2001 · St. Charles County, Missouri

Rating

1.0 mi

Path length

100 yd

Path width

$5.0M

Damage as recorded

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NOAA recorded where this tornado touched down but not where it lifted, so it appears as a point. Other tornadoes recorded nearby that day are shown faint.

What F1 means. This tornado was rated on Fujita’s original scale, used until 2007. F1 meant moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken; the scale paired it with winds of 73–112 mph, figures later judged too high, especially toward the top of the scale, and revised downward in the Enhanced Fujita scale. Ratings then, as now, came from the damage.

What the National Weather Service wrote

The 5th tornado spawned by the Heavy Precipitation Supercell that moved across the NWS St. Louis County Warning Area formed in Lake St. Louis. Most of the damage was at the Mystic Village apartment complex where the tornado was briefly F1 in intensity. Altogether, 2 buildings were considered destroyed, 14 homes/apartment/businesses had major damage, and 8 other homes/apartments/.businesses had minor damage.

Began near Lake St Louis (38.8000, -90.7333).

Source: NOAA Storm Events Database, event 5243130. Narratives are written by the National Weather Service forecast office that issued the report.

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