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EF0 tornado in Nassau County, Florida

Tornado January 21, 2010 · Nassau County, Florida

EF0

Rating

0.1 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 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

An EF0 (wind estimated around 80 mph) briefly touched town in Callahan. Semi-tractor trailers were overturned and in trees. The time was based on radar.

The wider storm

A strong storm system tracked across the deep south while the mid and upper level low moved over the Mississippi River Valley. A surface low developed over south Georgia in the afternoon, and a trailing squall line moved across the area in the afternoon and evening. Strong low level shear, including a 50 to 60 knot low level jet, combined with adequate instability to produce widespread severe storms across the area.

Began near Callahan (30.5600, -81.8300).

Other tornadoes from the same storm system

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

EF1 Bradford County EF0 Nassau County

Source: NOAA Storm Events Database, event 203805. Narratives are written by the National Weather Service forecast office that issued the report.

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