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EF2 tornado in Jackson County, Alabama

Tornado November 30, 2016 · Jackson County, Alabama

EF2
Rating
13.5 mi
Whole path
206 yd
Path width
4
Deaths
9
Injuries

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 206 yards (0.12 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 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

Sporadic damage was first observed along CR-71, north of Pisgah with much more widespread tree and structure damage observed CR-71 and CR-60, entering into Rosalie, where the tornado was suspected to touch down. Numerous hardwood and pine softwood trees were observed to be uprooted or snapped along with several wooden power line poles snapped. As the tornado moved east-northeast, nearly on top of CR-71, roof damage was reported to a brick church. Additionally, a large two story wooden structure (used for church related receptions) was heavily damaged. Damage indicators for that structure were related to a small barn. EF-1 damage was recorded for the area around the church with winds approximately 100 mph.

EF-2 damage was observed nearly one quarter mile further ENE along CR-71. A long, one story strip mall was destroyed (Rosalie Plaza Grocery). The assessment team noted that the roof was not strapped down and that cinder blocks were only held together by mortar. It was determined that the tornado likely blew the roof off the structure which quickly led to the block walls to collapse. Winds of 125 mph were estimated.

Additional EF-2 damage was reported one quarter to one third mile further ENE along CR-71. Several mobile homes, with at least one mobile home noted to have been tied down, were completely destroyed. Three fatalities were reported from this section of damage. Additionally, numerous softwood trees were either uprooted or snapped along with several wooden power poles snapped.

The wider storm

A tornado outbreak occurred during the evening hours of the 29th into the early morning hours of the 30th. A very mild and unstable air mass was in place along with a strong southwesterly upper level jet. These ingredients combined with a cold front and pre-frontal trough sweeping from west to east across the area sparked scattered supercell thunderstorms during the evening, a few of which were tornadic. This was followed by a quasi-linear convective system (QLCS) that occurred with the trough, which also was responsible for severe weather. Beneficial rainfall occurred with this system with 2-5 inches reported. Some of the rainfall fell fast enough to produce brief flash flooding in the Florence area during the evening.

Began near Roslie (34.6900, -85.7800).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 665859. Narratives are written by the National Weather Service forecast office that issued the report.

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