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April 12, 2020 · Walker County · 2020
EF1

April 12, 2020

7:12 PM
Walker County, Alabama · Near Jasper (ZIP 35580)
Fatalities
0
Injuries
3
Path Length
2.9 mi
Max Width
1,000 yd
DateApril 12, 2020
Time7:12 PM
CountyWalker
CityJasper
Property Loss$0
Crop Loss$0
SourceNCEI 887484
NWS Birmingham

2 SW - 1 NE Carbon Hill The tornado first touched down near the Walnut Grove community along the Blount-Etowah County line. Here sporadic tree damage was noted with some large limbs snapped and trees uprooted along Highway 278. The tornado tracked northeast tracking along the ridgeline in northern Etowah County. Sporadic tree damage was noted along Cove Spring Road and Cove Road. The tornado began to strengthen as it moved northeast toward the southern portions of Boaz. Several homes were damaged in this area some from falling trees and others from direct tornado damage. At least one home near the intersection of Highway 179 and Glover Road sustained significant structural damage. A large industrial building in this area also sustained significant damage. At this point, the tornado reached its maximum intensity in Etowah County at 115 mph with a width of approximately 350 yards. The tornado continued to move northeast through Boaz with homes and structures damaged along Pleasant Hill Road and Highway 205. Significant tree damage with uprooted and snapped trees were noted in this area. The tornado continued to track northeast through the city of Boaz and into Marshall and DeKalb Counties. Start: 33.8795/-87.5472 End: 33.9072/-87.5081

NWS EF Scale: F1

Event Narrative

National Weather Service meteorologists surveyed damage in southwest Walker County and determined that it was consistent with an EF1 tornado, with maximum winds near 95 mph. This tornado is a continuation from Fayette County and it dissipated shortly after crossing into Walker county. Damage consisted of several large uprooted trees.

Episode Narrative

An upper-level low over the southwest United States evolved into a negatively-tilted shortwave trough as it moved over the southeastern United States. A warm front steadily moved northward during the morning and afternoon hours on Sunday, April 12. This allowed an unstable air mass to move northward and overspread much of the region. At the same time, very strong wind shear developed over Alabama as the upper trough neared the state.||An initial wave of severe storms affected areas near and north of Interstate 20, involving tornadoes, damaging straight-line winds, and some hail. Through the evening, a second wave of thunderstorms affected the remaining areas of Central Alabama with tornadoes and damaging straight-line winds. Flooding also resulted from training rainfall near and north of Interstate 20. Some roads became impassible or were washed out. This weather event was large in scope and produced severe weather from Oklahoma and Texas, through the southeastern United States, then up the east coast to New York.

Outbreak Context

Part of 27-tornado outbreak on April 12, 2020

Shared Episode Narrative

An upper-level low over the southwest United States evolved into a negatively-tilted shortwave trough as it moved over the southeastern United States. A warm front steadily moved northward during the morning and afternoon hours on Sunday, April 12. This allowed an unstable air mass to move northward and overspread much of the region. At the same time, very strong wind shear developed over Alabama as the upper trough neared the state.||An initial wave of severe storms affected areas near and north of Interstate 20, involving tornadoes, damaging straight-line winds, and some hail. Through the evening, a second wave of thunderstorms affected the remaining areas of Central Alabama with tornadoes and damaging straight-line winds. Flooding also resulted from training rainfall near and north of Interstate 20. Some roads became impassible or were washed out. This weather event was large in scope and produced severe weather from Oklahoma and Texas, through the southeastern United States, then up the east coast to New York.

Source Data
NCEI Event ID: 887484

See Also

2.9 mi1000 yd wide