EF1 tornado in St. Louis (c) County, Missouri

Tornado December 31, 2010 · St. Louis (c) County, Missouri

EF1

Rating

2.7 mi

Path length

100 yd

Path width

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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 near the intersection of North Taylor Avenue and Washington Avenue in the Lewis Place neighborhood. It traveled to the northeast around 50 mph through The Ville and North Riverfront neighborhoods, then lifted just north of Fairground Park. Numerous homes sustained roof damage, with several homes sustaining near total loss of their roofs.

The wider storm

Severe thunderstorms developed ahead of a strong cold front, triggering numerous showers and thunderstorms. A number of tornadoes were reported as well as damaging winds and large hail.

Began near St Louis (38.6494, -90.2537).

Other tornadoes from the same storm system

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

EF3 St. Louis County 1 dead EF2 Franklin County EF1 St. Louis County EF1 Franklin County EF1 Crawford County EF1 Franklin County EF0 St. Charles County

Source: NOAA Storm Events Database, event 272957. Narratives are written by the National Weather Service forecast office that issued the report.

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