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EF1 tornado in Duval County, Florida

Tornado December 24, 2020 · Duval County, Florida

EF1

Rating

0.9 mi

Path length

60 yd

Path width

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 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

Just before 7 pm, at QLCS tornado touched down just south of I-295 in Mandarin from the shore of the St. Johns River near Tacito Trail and ended near Scott Circle East. The tornado damaged trees and caused minor damage to the roof of one home due to a tree falling on it. Another tree fell on a transformer which caused it to blow out and ignite the tree on fire. The tornado had peak winds of 105 mph.

The wider storm

A strong pre-frontal squall line crossed the local area during the afternoon and into the early evening. Despite the limited instability, strong bulk shear of 50-60 kts and a strong low level jet produced widespread wind damage as a squall line crossed the local area. Wind gusts of 45-66 mph produced widespread tree and power line damage. Three QLCS tornadoes produced damage across NE FL where better surface based instability occurred during the afternoon ahead of the squall line.

Began near Plummers (30.1706, -81.6453).

Other tornadoes from the same storm system

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

EF1 Bradford County EF1 Duval County

Source: NOAA Storm Events Database, event 928616. Narratives are written by the National Weather Service forecast office that issued the report.

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