How many tornadoes april 27 2011

Less than 12 hours later, another long-track tornado approached the city. After weakening west of town, the tornado strengthened quickly as it moved into Cordova, carving a one-half-mile wide path of damage rated EF3 in the downtown area. Incredibly, Marshall County, Alabama, was affected 15 separate times by a tornado on April 27, It not uncommon for a morning cluster of severe t-storms to be followed by a more dangerous round of afternoon supercells.

The morning t-storm cluster typically produces damaging winds, flooding rain, perhaps a few tornadoes. An early-morning squall line in the Tennessee Valley on April 27, , produced an incredible 76 tornadoes in Mississippi, Alabama, east Tennessee, and north Georgia, according to the Knupp et al. This included some long-track EF3 tornadoes, an intensity somewhat rare for early-morning squall lines. Just hours later, a second line of thunderstorms in the late morning hours spawned another seven mainly weak EF0 or EF1 tornadoes in northern Alabama.

Finally, the most destructive and deadly supercells roared across Mississippi, Alabama, north Georgia, east Tennessee and far southwest Virginia that afternoon and evening. The individual tornado paths from the April , , Super Outbreak added up to an almost unfathomable 3, path miles, by far the greatest of any U. This total path was over miles longer than the April , , Super Outbreak.

If one could place these tornado paths end to end, it would be roughly equal to the driving distance from Portland, Maine, to San Francisco. The Tennessee Valley Authority's electrical generation and distribution took a massive hit from the Super Outbreak.

Over transmission towers were mangled on April 27, Power outages affected Huntsville, Alabama, for several days, affecting everything from gas stations to traffic signals. The Knupp et al. A total of tornado warnings were issued by the six most-affected National Weather Service Forecast offices on April 27, , alone.

A pair of additional tornado warnings for the NWS-Huntsville's area of responsibility were issued by the NWS office in Jackson, Mississippi, while Huntsville employees themselves took shelter. The average lead time for tornado warnings April 27 among those six NWS offices was found to be from minutes.

These NWS survey results speak for themselves:. Clair County. Hackleburg Marion County. Panola Sumter and Pickens Counties. Shottsville Marion County. EF-4 mph. Haleyville Marion and Winston Counties. Hubbertville Fayette County. Clair, Calhoun, Etowah and Cherokee Counties. Wateroak Hale and Bibb Counties.

Marvel Bibb and Shelby Counties. Marion Perry County. EF-1 90 mph. White Plains Chambers County. Finley Creek Chambers County. Verbena Chilton County. EF-0 80 mph. Follow us on Twitter. Follow us on Facebook.

Follow us on YouTube. The tornado killed 65 people and injured more than 1, The University of Alabama in Tuscaloosa escaped damage from the tornado but six university students were killed. The university ultimately cancelled its final exams and moved commencement ceremonies to August.

Hackleburg hard hit. A violent tornado virtually wiped the small town of Hackleburg off the map, destroying schools, homes and businesses. The violent storm then tracked in Franklin, Lawrence, Limestone and Madison counties. Phil Campbell. The storm swept through Phil Campbell in Franklin County, leveling homes with winds of up to mph, before hitting Oak Grove.

In all, 27 people were killed in Franklin County. The tornado hit Moulton, Trinity and into Limestone and Morgan counties, killing 14 and snapping power poles that delivered electricity to Browns Ferry Nuclear Power Plant. Madison County. Tony and Harvest were hit by the Hackleburg tornado as it entered Madison County. In Madison County, numbers homes in the Anderson Hills subdivision were destroyed, including some that had been rebuilt after being demolished in a tornado.

Thirteen people were killed in Limestone and Madison counties. An EF4 tornado that hit after p. Downtown Cullman suffered widespread devastation. Presidential visit. Privacy Policy. April 27, Tornado Outbreak Weather. Current Hazards. Submit a Storm Report Local Outlooks. Current Conditions. Rivers and Lakes. Climate and Past Weather.