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EF0 tornado in Polk County, Florida

Tornado March 31, 2011 · Polk County, Florida

EF0
Rating
10.3 mi
Whole path
60 yd
Path width
7
Injuries
$505K
Damage as recorded

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 60 yards (0.03 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

Amateur radio operators reported a tornado on the ground north of Mulberry, and numerous trees and powerlines were downed north of Bartow. No damage was reported to structures as the tornado moved through a rural area north of the cities.

The wider storm

A stalled frontal boundary was in place across central Florida. As the boundary began to lift north drawing in abundant warm moist air over the area, an upper level disturbance moved over the area and a squall line developed and quickly moved across the northern half of the area. Several areas of damaging winds and a tornado resulted from this fast moving line on March 30th. The warm front continued to lift north over northern Florida as a developing low pressure system shifted into the northeastern Gulf of Mexico. As this system moved across northern Florida, the cold front pushed into the local area and another series of squall lines moved across the area through the day on March 31st. Several tornadoes and areas of damaging winds occurred across the greater Tampa Bay area.

Began near Prairie (27.9086, -81.9827).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 289564. Narratives are written by the National Weather Service forecast office that issued the report.

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