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EF1 tornado in Hillsborough County, Florida

Tornado March 31, 2011 · Hillsborough County, Florida

EF1
Rating
5.2 mi
Path length
100 yd
Path width
$1.6M
Damage as recorded
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 area around the Tampa Port Authority and Progress Village suffered extensive damage from an EF1 tornado. Numerous roofs were blown off and 40 feet long storage containers were overturned around the Tampa Port Authority. There were 118 homes and businesses with minor damage in Progress Village, and 40 that sustained major damage. In addition, 245 homes are being assisted with tree damage in the Progress Village area.

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 Port of Tampa Ports Site (27.9013, -82.4126).

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 289561. Narratives are written by the National Weather Service forecast office that issued the report.

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