Information about tornadoes from each of 3 rounds appears below.
Click here to jump to 2nd (Mid Day) Round. Click here to jump to 3rd (Afternoon) Round.

The First Round: Tornadoes Embedded Within
A Quasi-Linear Convective System

Click on a track in the image below for more information concerning that tornado
(Note:  For Marshall County: click on the county first for a zoomed in map to access storm survey information)
Preliminary Tornado Track Map from the April 27 2011 Super Outbreak

Click To Go To Midday Tracks or Afternoon Tracks

 

 
4/27/2011 Morning Tornadoes: 4 AM to 8 AM

Counties

Damage Rating/Estimated Maximum Wind Speed

Damage path Length/Width

Starting  Point/Time

 Ending  Point/Time

Huntsville CWA Fat/Inj

Total Track Fat/Inj

Lauderdale,  AL/Wayne, TN
EF-1 / 110 MPH
9.19 miles
/200 yards
34.9406/-88.0564
4:01 AM
35.0081/-87.9086
4:11 AM
None None
Kemper, MS/Noxumbee, MS/Pickens, AL (Cooksville-Dancy)
EF-2 / 125 MPH in WFO JAN
35.16 miles
/1410 yards
32.9076/-88.5313
4:03 AM
33.1275/-87.9844
4:35 AM
NA None
Lauderdale, AL EF-1 / 90 MPH
1.82 miles
/200 yards
34.808/-87.878
4:19 AM
34.833/-87.868
4:23 AM
0/1 0/1
Pickens County (Northern Reform)
EF-2 / 120 MPH
14.36 miles
/1232 yards
33.3007/-88.1496 4:27 AM 33.4445/-87.9699
4:42 AM
NA None
Pickens, AL/Tuscaloosa, AL  (Holman)
EF-3 / 140 MPH
22.46 miles
/704 yards
33.2448/-87.8817 4:41 AM 33.4268/-87.5605
5:02 AM
NA None
Fayette, AL  (Berry)
EF-1 / 100 MPH
7.28 miles
/176 yards
33.6325/-87.6488 5:03 AM 33.6943/-87.5462
5:11 AM
NA 0/4
Tuscaloosa, AL/Jefferson, AL (Coaling)
EF-3 / 155 MPH
20.26 miles
/200 yards
33.1630/-87.3716 5:17 AM 33.2960/-87.0594
5:35 AM
NA None
Walker, AL (Parrish-Cordova)
EF-3 / 140 MPH
18.90 miles
/375 yards
33.5979/-87.3278 5:18 AM 33.8176/-87.1320
5:36 AM
NA 0/20
Lincoln, TN/Moore, TN EF-2 / 115 MPH
25.85
/400 yards
35.0022/-86.6981
5:38 AM
35.2683/-86.374
6:06 AM
None None
Cullman, AL EF-2 / 120 MPH
30.32
/880 yards
33.9176/-87.0472
5:48 AM
34.1656/-86.6104
6:20 AM
1/0 1/0
Shelby, AL /Jefferson, AL (Altadena)
EF-1 / 100 MPH
3.39 miles
/100 yards
33.3780/-87.7509 5:50 AM 33.4255/-86.7362
5:54 AM
NA None
Jefferson, AL/Blount, AL (Mountain Woods Lake)
EF-2 / 135 MPH
3.23 miles
/200 yards
33.8300/-87.8012 5:53 AM 33.8627/-87.7610
5:57 AM
NA 0/3
Jefferson, AL (Cahaba Heights)
EF-2 / 120 MPH
7.76 miles
/200 yards
33.4367/-87.7622 5:54 AM 33.4980/-86.6493
6:00 AM
NA 0/20
Blount, AL (Liberty) /Marshall, AL EF-1 / 95 MPH
14.83 miles
/200 yards
34.0894/-86.5342
6:12 AM
34.2449/-86.3554
6:26 AM
None None
Moore, TN/Bedford, TN EF-2 / 115 MPH
1.98 miles
/75 yards
35.4/-86.2739
6:13 AM
35.4201/-86.2496
6:16 AM
None None
St Clair, AL (Odenville)
EF-2 / 120 MPH
3.84 miles
/200 yards
33.6473/-86.4153 6:16 AM 33.6848/-86.3661
6:19 AM
NA 0/5
Cullman, AL/Marshall, AL EF-1 / 110 MPH
11.04 miles
/75 yards
34.2596/-86.4599  6:20 AM 34.3458/-86.3014
6:40 AM
None None
Marshall, AL EF-1 / 95 MPH
6.37 miles
/100 yards
34.2548/-86.4307
6:24 AM
34.3324/-86.3705
6:34 AM
None None
Marshall, AL/De kalb, AL EF-2 / 120 MPH
19.97 miles
/880 yards
34.3616/-86.3712
6:30 AM
34.4629/-86.043
6:55 AM
None None
Marshall, AL EF-1 / 110 MPH
3.39 miles
/50 yards
34.2554/-86.3491
6:30 AM
34.2989/-86.3215
6:40 AM
None None
Marshall, AL EF-1 / 110 MPH
5.69 miles
/50 yards
34.2575/-86.3088
6:30 AM
34.3231/-86.2486
6:40 AM
None None
Marshall, AL EF-1 / 110 MPH
4.58 miles
/50 yards
34.2486/-86.2582
6:30 AM
34.3114/-86.2323
6:40 AM
None None
Marshall, AL EF-1 / 90 MPH
0.32 miles
/50 yards
34.4901/-86.2613
6:35 AM
34.4923/-86.2564
6:40 AM
None None
Marshall, AL EF-1 / 95 MPH
4.93 miles
/100 yards
34.2798/-86.3935
6:35 AM
34.3273/-86.329
6:40 AM
None None
Marshall, AL EF-0 / 85 MPH
2.76 miles
/75 yards
34.4226/-86.2845
6:43 AM
34.4411/-86.2416
6:45 AM
None None
Marshall, AL EF-1 / 105 MPH
6.89 miles
/300 yards
34.3836/-86.297
6:45 AM
34.4426/-86.1995
6:51 AM
None None
Marshall, AL EF-1 / 90 MPH
4.83 miles
/200 yards
34.375/-86.2005
6:45 AM
34.442/-86.1761
6:49 AM
None None
Marshall, AL EF-1 / 105 MPH
1.55 miles
/100 yards
34.5018/-86.1911
6:49 AM
34.5162/-86.1702
6:52 AM
None None
Jackson, AL/De kalb, AL EF-1 / 110 MPH
27.85 miles
/300 yards
34.5735/-85.9678
6:58 AM
34.8376/-85.5984
7:36 AM
1/0 1/0
De kalb, AL/Jackson, AL EF-2 / 120 MPH
5.75 miles
/200 yards
34.6372/-85.7691
7:10 AM
34.7237/-85.7382
7:18 AM
None None
De kalb, AL EF-1 / 100 MPH
4.05 miles
/50 yards
34.6004/-85.5835
7:18 AM
34.6519/-85.5496
7:22 AM
None None
Click here for an explanation of EF-Scale

 

 

 

 

The Second Round: Tornadoes Embedded
Within Another Quasi-Linear Convective System

Click on a track below to find more information about that tornado in the Huntsville Forecast area.

Preliminary Tornado Track Map from the April 27 2011 Super Outbreak

Click To Go To Morning Tracks or Afternoon Tracks

 
 
4/27/2011 Midday Tornadoes: 11 AM to 1 PM
 

Counties                      

Damage Rating/Estimated Maximum Wind Speeds

Damage path Length/Width

Starting Point/Time

Ending Point/Time

Huntsville CWA Fat/Inj

Total Track Fat/Inj

Limestone, AL EF-0 / 85 MPH
7.19 miles
/150 yards
34.7704/-87152
11:15 AM
34.7719/-87.0254
11:25 AM
None None
Morgan, AL/Limestone, AL EF-1 / 105 MPH
8.95 miles
/75 yards
34.6452/-87.079 11:20 AM 34.6686/-86.9241
11:30 AM
None None
Limestone, AL EF-0 / 70 MPH
4.06 miles
/50 yards
34.7307/-87.0329
11:23 AM
34.7363/-86.9617
11:28 PM
None None
Limestone, AL/Madison, AL EF-1 / 110 MPH
21.08 miles
/200 yards
34.7554/-86.866
11:30 AM  
34.85/-86.44
 12:05 PM
None
None
Limestone, Madison, AL EF-1 / 110 MPH
3.09 miles
/100 yards
34.7855/-86.7894
11:35 AM
34.7971/-86.7369
11:40 AM
None None
Madison, AL EF-1 / 105 MPH
7.6 miles
/500 yards
34.8004/-86.6226
11:50 AM 
34.8233/-86.4916
 12:05 PM
None None
Madison, AL EF-0 / 85 MPH
3.51 miles
/100 yards
34.8653/-86.4911
11:55 AM
34.8723/-86.4298
12:05 PM
None None
Click here for an explanation of EF-Scale

 

 

 

 

The Final Round: Numerous
Strong to Violent Supercell Tornadoes

Click on a track below to find more information about that tornado in the Huntsville Forecast area.

Preliminary Tornado Track Map from the April 27 2011 Super Outbreak

Click To Go To Morning Tracks or Midday Tracks

 
 
4/27/2011 Afternoon Tornadoes: 2 PM to 10 PM

Counties Affected

Damage Rating/Estimated Maximum Wind Speeds

Damage path Length/Width

Starting Point/Time

Ending Point/Time

Huntsville CWA Fat/Inj

Total Track Fat/Inj

Cullman, AL/Morgan,  AL/Marshall, AL 
EF-4 / 175 MPH in WFO HUN
46.88 miles
/880 yards
34.0757/-87.0097   2:40 PM 34.4935/-86.3628
 3:38 PM
6/At least 48 6/At least 48
Kemper, MS/Sumter, AL/Pickens, AL EF-3 / 140 MPH in WFO BMX
EF-2 /130 mph in WFO MEG
23.74 miles
/1056 yards
32.8496/-88.4528
  2:47 PM
33.0604/-88.1299
 3:15 PM
NA 0/2
Marion, AL/Franklin, AL/Lawrence, AL/Morgan, AL/Limestone, AL/Madison, AL/Lincoln, TN/Franklin, TN
EF-5 / 210 MPH in WFO HUN
132 miles
/2200 yards
34.1043/-88.1479
   3:05 PM  
35.0857/-86.1511
5:40 PM
54/At least 45
72/At least 145
Pickens, AL/Tuscaloosa, AL/Fayette, AL, Walker, AL/Cullman, AL/Blount, AL/Marshall, AL

EF-4 / 170 MPH in WFO BMX and HUN

127.8 miles
/1408 yards
33.2506/-88.1814
3:40 PM
34.2831/-86.3491
5:56 PM
None 13/At least 54
Monroe, MS/Itawamba, MS/Marion, AL/Franklin, AL EF-2 / 120 MPH in WFO HUN

EF-5 /Over 200 MPH in WFO MEG
37.3 miles
/1320 yards
34.0455/-88.445
3:42 PM
34.3233/-87.8982 4:23 PM 0/0
23/137
Jackson, AL/De kalb, AL/Dade, GA/Walker, GA EF-4 / 190 MPH in WFO HUN
46.98 miles
/1260 yards
34.6208/-85.9814
4:01 PM
34.9531/-85.2666
4:57 PM
12/UNKNOWN 14/At least 50
Madison, AL
EF-1 / 105 MPH in WFO HUN
1.42 miles
/75 yards
34.1380/-86.7770
 4:40 PM 
34.8197/-86.7534
4:45 PM
None None
Smith, MS/Jasper, MS/Clarke, MS/Choctaw, AL/Sumpter, AL/Marengo, AL/Perry, AL
EF-4 / 175 MPH in WFO JAN
124 miles
/1050 yards
32.0296/-89.5042
4:42 PM
34.9531/-85.2666
8:35 PM
NA 7/17
Greene, AL/ Tuscaloosa, AL/Jefferson, AL EF-4 / 190 MPH in WFO BMX
80.68 miles
/1.5 miles
33.0297/-87.9350  4:43 PM 33.6311/-86.7436
6:14 PM
NA 64/1500
Limestone, AL/Madison, AL EF-1 / 110 MPH in WFO HUN
14.62 miles
/50 yards
34.6655/-86.9172
4:53 PM
34.7797/-86.7006
5:07 PM 
None None
Jackson, AL/Marion, TN EF-4 / 180 MPH in WFO HUN
30.24 miles
/1320 yards
34.7948/-85.909
5:05 PM
35.07/-85.5
5:31 PM 
1/0 1/0
Marion, AL/Winston, AL (Haleyville)
EF-3 / 150 MPH in WFO BMX 31.84 miles
/0.75 miles
34.0289/-879421
5:10 PM
34.3039/-87.4968
5:47 PM
NA 0/25
Greene, AL/Hale, AL/Bibb, AL(Sawyerville-Eoline) EF-3 / 145 MPH in WFO BMX
72.13 miles
/1 mile
32.6152/-88.0543
 5:30 PM
33.1524/-86.9898
6:55 PM
NA 7/50
Fayette, AL (Hubbertville)
EF-3 / 145 MPH in WFO BMX
7.96 miles
/0.5 miles
33.8129/-87.8108
 6:06 PM
33.8683/-87.6892
  6:14 PM
NA None
Dekalb, AL/Dade, GA EF-5 / Over 200 MPH in WFO HUN
36.59 miles
/1320 yards
34.3907/-85.9784
 6:19 PM
34.7661/-85.5241
6:55 PM 
25/UNKNOWN 25/UNKNOWN
Jefferson, AL/St. Clair, AL/Calhoun, AL/Etowah, AL/Cherokee, AL/Polk, GA/Floyd, GA/Bartow, GA (Argo-Shoal Creek-Ohatchee-Forney)
EF-4 / 180 MPH in WFO BMX
97.33 miles
/1 mile
33.6792/-86.5699
 6:28 PM
34.19/-84.99
  8:15 PM
NA 22/85
Hale, AL/Bibb, AL (Wateroak)
EF-1 / 110 MPH in WFO BMX
8.62 miles
/300 yards
32.8478/-87.4922
  6:50 PM
32.9047/-87.3605
  7:02 PM
NA NA
Cullman, AL
EF-0 / 110 MPH in WFO HUN 1.19 miles
/100 yards
34.2846/-86.9189
  7:09 PM
34.2968/-86.9042
  7:13 PM
NA NA
Bibb, AL/Shelby, AL (Marvel)
EF-1 / 105 MPH in WFO BMX
5.41 miles
/50 yards
33.1169/-87.0081
  7:32 PM
32.9047/-87.3605
  7:38 PM
NA None
Elmore, AL/Tallapoosa, AL/Chambers, AL (Lake Martin)
EF-4 / 170 MPH in WFO BMX
44.18 miles
/0.5 mile
32.6174/-86.1930
  8:12 PM
32.9196/-85.5230
  9:09 PM
NA 7/30
Shelby, AL/Talladega, AL (Vincent-Logan Martin)
EF-1 / 105 MPH in WFO BMX
8.59 miles
/200 yards
33.3507/-86.4013
  8:15 PM
33.4483/-86.3092
  8:24 PM
NA None
Perry, AL (Marion)
EF-1 / 90 MPH in WFO BMX
4.24 miles
/100 yards
32.5519/-87.3142
  8:50 PM
32.5748/-87.2466
  8:53 PM
NA None
Dekalb, AL
EF-2 / 120 MPH in WFO HUN 6.5 miles
/250 yards
34.4059/-85.7294
  9:05 PM
34.4427/-85.6250
  9:10 PM
None None
Chambers, AL (White Plains)
EF-1 / 110 MPH in WFO BMX
5.24 miles
/150 yards
32.9719/-85.3688
  9:19 PM
33.0114/-85.2916
  9:28 PM
NA None
Chambers, AL (Finley Creek)
EF-1 / 90 MPH in WFO BMX
5.01 miles
/100 yards
33.0158/-85.2938
  9:29 PM
33.0836/-85.2633
  9:38 PM
NA None
Chilton, AL (Verbena)
EF-0 / 80 MPH in WFO BMX
1.91 miles
/150 yards
32.7759/-86.5429
  9:48 PM
32.7857/-86.5122
  9:50 PM
NA 0/1
Click here for an explanation of EF-Scale

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