April 27th, 2011 Tornado Outbreak Statistics

 Below are a table of some final statistics about the tornadoes that occurred both in the Huntsville forecast area (CWA) and the entire state of Alabama. 

EF-Rating

Total Tornado Count in Huntsville CWA

Direct Fatalities in Huntsville CWA Direct Injuries in Huntsville CWA Total Tornado Count in Alabama ** Direct Fatalities in Alabama
** Direct Injuries in Alabama
EF-5
3
79 At least 45 3 104 At least 245
EF-4
4
19 At least 48 8 125 At least 1716
EF-3
0
0 0 7 7 At least 95
EF-2
6
1 0 9 1 30
EF-1
21
1 1  29  1 5
EF-0
5
0 0 6 0 1
Total
39
100
At least 94
62
** 238 ** At least 2092
** These numbers reflect direct deaths and injuries from only tornadoes.
 
Huntsville CWA:  Some interesting Facts/Statistics about the April 27th, 2011 tornado outbreak
 1 -  Produced 4 EF4  and 3 EF5 tornadoes. This is one more F4 tornado than the 1974 Tornado Outbreak

 2 -  This event produced more tornadoes (39), but also included two more rounds of tornadoes than the 1974 Tornado
       Outbreak.  Nine tornadoes occurred in the 1974 Tornado Outbreak (including 3 F5's, 3 F4's)

 3 -  The majority (77%) of the tornadoes were EF0 to EF2 and occurred with the morning and midday waves of tornadoes.
 4 -  The last wave was the most intense and accounted for all of the violent tornadoes which affected the Huntsville CWA.

 5 -  In all three waves of tornadoes, this event had more strong (EF2 and EF3) to violent (EF4 and EF5) tornadoes (12)
       across the Huntsville CWA than the 1974 Tornado Outbreak (9).

 
County # of Times a Tornado Hit a County
in the HUN CWA (04/27/2011)
Lauderdale, AL
2
Colbert, AL
0
Franklin, AL
2
Lawrence, AL
1
Limestone, AL
7
Madison, AL
6
Morgan, AL
3
Cullman, AL
5
Marshall, AL
15
Dekalb, AL
7
Jackson, AL
4
Franklin, TN
1
Moore, TN
2
Lincoln, TN
2
 


Severe Thunderstorm and Tornado Warning Overview

Below is a grahipcal map of all severe thunderstorm, tornado, and flash flood warnings issued on April 27th, 2011 for the Huntsville forecast area.  Note: Two of these warnings were issued by the NWS Jackson, MS office while NWS Huntsville briefly took shelter on Wednesday  afternoon, April 27th.  Ninety two tornado warnings speaks for itself, an extremely busy day!!!

Tornado Warnings.............................92
Severe Thunderstorm Warnings.....31
Flash Flood Warnings.........................7

Warning polygons issued by the National Weather Service in the Huntsville County Warning Forecast Area on April 27th 2011

 

Back to Main April 27 Event Page


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