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October 1, 2012 · Coosa County · 2012
EF0

October 1, 2012

3:47 AM
Coosa County, Alabama · Near Wetumpka (ZIP 35183)
Fatalities
0
Injuries
0
Path Length
0.5 mi
Max Width
150 yd
DateOctober 1, 2012
Time3:47 AM
CountyCoosa
CityWetumpka
Property Loss$0
Crop Loss$0
SourceNCEI 417470
NWS Birmingham

1 SW Pentonville - 0.5 SW Pentonville The tornado initially touched down just east of County Road (CR) 45 south of Shady Grove church in a thin stand of trees between the road and a pasture. It proceeded to the north-northeast at about 30 mph, uprooting trees in a convergent pattern in the vicinity of Shady Grove cemetery. It uprooted 3 large pines as it crossed CR 14, then damaging a small barn and out buildings due to uprooted oak trees before moving into a heavily wooded area. Large hardwood trees were uprooted sporadically along the path, with one area of concentrated damage deep in the woods. The tornado then weakened rapidly and dissipated over wooded land before the thunderstorm crossed CR 8. A debris signature on radar helped to determine the location of the path. The tornado was rated an EF-0, with maximum winds of 85 mph. Low pressure at the surface and aloft progressed northeastward, with a cold front trailing to the south. A warm front lifted from the Gulf of America and stalled across central Alabama. Storms developed and moved across this warm front, where there was enough lift and shear to support an isolated and brief tornado to develop Start: 32.8089/-86.2405 End:  32.8157/-86.2367

NWS EF Scale: F0 Polygon

Event Narrative

The tornado initially touched down just east of County Road (CR) 45 south of Shady Grove church in a thin stand of trees between the road and a pasture. It proceeded to the north-northeast at about 30 mph, uprooting trees in a convergent pattern in the vicinity of Shady Grove cemetery. It uprooted 3 large pines as it crossed CR 14, then damaging a small barn and out buildings due to uprooted oak trees before moving into a heavily wooded area. Large hardwood trees were uprooted sporadically along the path, with one area of concentrated damage deep in the woods. The tornado then weakened rapidly and dissipated over wooded land before the thunderstorm crossed CR 8. A debris signature on radar helped to determine the location of the path. The tornado was rated an EF-0, with maximum winds of 85 mph.

Episode Narrative

Low pressure at the surface and aloft progressed northeastward, with a cold front trailing to the south. A warm front lifted from the Gulf of Mexico and stalled across central Alabama. Storms developed and moved across this warm front, where there was enough lift and shear to support an isolated and brief tornado to develop.

Source Data
NCEI Event ID: 417470
SWDI Tornado ID: 2012-10-01T09:40:09Z_KMXX_E4
SWDI Radar Site: KMXX
SWDI Signature: TVS

See Also

0.5 mi150 yd wide