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EF1 tornado in Franklin County, Missouri

Tornado December 31, 2010 · Franklin County, Missouri

EF1
Rating
1.2 mi
Whole path
100 yd
Path width
$40K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Franklin County → Franklin County; the totals above are for the whole tornado.

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

A tornado touched down along Country Club Road and produced minor tree damage. It continued to the northeast and struck Rivendell Farms, a horse farm, where it removed the majority of the roof from a large metal pole barn and caused minor injuries to one horse. Another outbuilding sustained roof damage and the residence had some shingles blown off. Also, a thirty five foot radio tower was blown down. The damage to the pole barn is rated EF1 intensity while the rest of the damage at this location is EF0. The tornado crossed Country Club Road near a sharp curve to the west. A house had shingles missing at this location as well as minor tree damage. The tornado lifted just past this point.

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 Krakow (38.5003, -91.0222).

Other tornadoes from the same storm system

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

EF3 St. Louis County 1 deadEF2 Franklin CountyEF1 St. Louis CountyEF1 St. Louis (c) CountyEF1 Crawford CountyEF1 Franklin CountyEF0 St. Charles County

Source: NOAA Storm Events Database, event 273513. Narratives are written by the National Weather Service forecast office that issued the report.

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