EF-4

Authorities also said at least six category EF-4 tornadoes—which pack winds of 166 to 200 miles per hour—touched down in Alabama, Mississippi, Georgia and Tennessee.

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The weather service has categorized that tornado as at least'' an EF-4, with winds of at least 165 miles an hour.

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The EF-4 twister that ravaged Tuscaloosa was among 62 tornadoes that hit Alabama on April 27, leaving dozens dead.

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An EF-4 with winds around 170 mph struck about 12 hours later, killing four people and cutting a path of destruction a half-mile wide through town.

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The weather service has categorized that tornado as at least'' an EF-4, with winds of at least 165 miles an hour in Pleasant Growth on the outskirts of Birmingham.

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The EF-4 twister that ravaged Tuscaloosa was among 62 tornadoes that hit Alabama on April 27, leaving dozens dead.

Tornado-delayed graduation finally held at Alabama 2011

Authorities also said at least six category EF-4 tornadoes—which pack winds of 166 to 200 miles per hour—touched down in Alabama, Mississippi, Georgia and Tennessee.

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At least 10 EF-4 tornadoes—which pack winds of 166 to 200 miles an hour—touched down in various states last week, according to the National Weather Service.

More Than 250 Tornadoes Struck Mike Esterl 2011

Bethesda is not that far from where an EF-4 hit a few yearsago.

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Another one across the northeast corner of the state, where there was an even stronger storm, an EF-4 storm there with winds over 160 miles an hour.

CNN Transcript Feb 7, 2008 2008