Alert archive / Alabama / Tornado Watches in 2011

Tornado Watch 235

April 27, 201147 counties in Alabama; 8 counties in Georgia; Greene County, Perry County, Wayne County, Mississippi

The Storm Prediction Center issued this tornado watch at Apr 27, 2011, 1:42 PM CDT for 47 counties in Alabama; 8 counties in Georgia; Greene County, Perry County, Wayne County, Mississippi. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Apr 27, 2011, 1:42 PM CDT (18:42 UTC)
Expired: Apr 27, 2011, 10:00 PM CDT
In force: 8 hr
Issued by: the Storm Prediction Center
Particularly dangerous situation: Yes
Largest hail expected: 4 in
Strongest gust expected: 70 kt

All 58 counties

Autauga County, AL, Bibb County, AL, Blount County, AL, Butler County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Clay County, AL, Cleburne County, AL, Colbert County, AL, Conecuh County, AL, Coosa County, AL, Crenshaw County, AL, Cullman County, AL, Dallas County, AL, DeKalb County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Lowndes County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Monroe County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Haralson County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA, Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Birmingham radar (KBMX), 54 km from the middle of the area, began a volume at 18:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 95%
One or more EF2 to EF5 tornadoes: 95%
Ten or more severe wind reports: 95%
One or more gusts of 65 knots or more: 95%
Ten or more severe hail reports: 95%
One or more hailstones of 2 inches or more: 95%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

123 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Apr 27, 2:09 PM CDT	Tornado Warning	BMX	Walker, Winston	31 min
Apr 27, 2:09 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Morgan	17 min
Apr 27, 2:24 PM CDT	Tornado Warning	HUN	Cullman	36 min
Apr 27, 2:31 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	44 min
Apr 27, 2:43 PM CDT	Tornado Warning Emergency	HUN	Cullman, Morgan	32 min
Apr 27, 2:51 PM CDT	Tornado Warning	HUN	Colbert, Franklin, Lauderdale	24 min
Apr 27, 2:59 PM CDT	Tornado Warning	BMX	Lamar, Marion	46 min
Apr 27, 3:03 PM CDT	Tornado Warning Emergency	HUN	Cullman, Madison, Marshall, Morgan	42 min
Apr 27, 3:08 PM CDT	Tornado Warning	HUN	Colbert, Lauderdale	37 min
Apr 27, 3:15 PM CDT	Tornado Warning Emergency	BMX	Pickens, Tuscaloosa	60 min
Apr 27, 3:17 PM CDT	Tornado Warning Emergency	HUN	Colbert, Franklin, Lawrence	43 min
Apr 27, 3:21 PM CDT	Tornado Warning	BMX	Lamar, Marion	54 min
Apr 27, 3:25 PM CDT	Tornado Warning Emergency	HUN	Jackson, Madison, Marshall	50 min
Apr 27, 3:38 PM CDT	Tornado Warning Emergency	BMX	Greene, Hale, Pickens, Sumter, Tuscaloosa	67 min
Apr 27, 3:51 PM CDT	Tornado Warning	HUN	Jackson	24 min
Apr 27, 3:51 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Morgan	24 min
Apr 27, 3:56 PM CDT	Tornado Warning	BMX	Marion	34 min
Apr 27, 3:56 PM CDT	Tornado Warning	HUN	Colbert, Franklin, Lawrence	34 min
Apr 27, 3:57 PM CDT	Flash Flood Warning	BMX	Marion, Winston	3 hr
Apr 27, 3:59 PM CDT	Tornado Warning	HUN	Cullman, Marshall, Morgan	31 min
Apr 27, 4:00 PM CDT	Tornado Warning Emergency	BMX	Fayette, Pickens, Tuscaloosa, Walker	60 min
Apr 27, 4:07 PM CDT	Tornado Warning	HUN	Madison, Morgan	38 min
Apr 27, 4:07 PM CDT	Severe Thunderstorm Warning	FFC	Dade, Walker	38 min
Apr 27, 4:09 PM CDT	Tornado Warning	HUN	Franklin	36 min
Apr 27, 4:11 PM CDT	Tornado Warning Emergency	HUN	Lawrence, Limestone, Madison, Morgan	34 min
Apr 27, 4:11 PM CDT	Tornado Warning	HUN	DeKalb, Jackson	30 min
Apr 27, 4:14 PM CDT	Tornado Warning	FFC	Dade, Walker	46 min
Apr 27, 4:18 PM CDT	Tornado Warning Emergency	HUN	Madison, Marshall	29 min
Apr 27, 4:22 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Morgan	23 min
Apr 27, 4:30 PM CDT	Flash Flood Warning	HUN	DeKalb, Jackson, Madison, Marshall	5 hr
Apr 27, 4:30 PM CDT	Tornado Warning	HUN	Madison	30 min
Apr 27, 4:31 PM CDT	Tornado Warning	BMX	Pickens, Tuscaloosa	20 min
Apr 27, 4:33 PM CDT	Tornado Warning	HUN	Colbert, Franklin, Lawrence	27 min
Apr 27, 4:37 PM CDT	Tornado Warning Emergency	HUN	Madison	23 min
Apr 27, 4:39 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Madison, Morgan	36 min
Apr 27, 4:44 PM CDT	Tornado Warning	BMX	Fayette, Lamar, Marion	61 min
Apr 27, 4:44 PM CDT	Tornado Warning	HUN	Jackson, Marshall	31 min
Apr 27, 4:47 PM CDT	Tornado Warning Emergency	BMX	Greene, Pickens, Tuscaloosa	58 min
Apr 27, 4:50 PM CDT	Tornado Warning	BMX	Greene, Hale, Sumter	55 min
Apr 27, 4:51 PM CDT	Tornado Warning	FFC	Catoosa	24 min
Apr 27, 4:53 PM CDT	Tornado Warning	HUN	Cullman	37 min
Apr 27, 4:55 PM CDT	Tornado Warning Emergency	BMX	Blount, Jefferson, Walker	65 min
Apr 27, 4:56 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Madison	34 min
Apr 27, 4:56 PM CDT	Tornado Warning Emergency	HUN	Jackson, Madison	34 min
Apr 27, 5:00 PM CDT	Tornado Warning	HUN	Jackson	30 min
Apr 27, 5:03 PM CDT	Severe Thunderstorm Warning	FFC	Catoosa, Walker	27 min
Apr 27, 5:05 PM CDT	Tornado Warning Emergency	HUN	Madison	25 min
Apr 27, 5:11 PM CDT	Tornado Warning	HUN	Limestone, Madison, Morgan	40 min
Apr 27, 5:15 PM CDT	Severe Thunderstorm Warning	FFC	Dade	30 min
Apr 27, 5:18 PM CDT	Flash Flood Warning	HUN	Cullman	4 hr
Apr 27, 5:22 PM CDT	Tornado Warning	BMX	Fayette, Lamar	68 min
Apr 27, 5:22 PM CDT	Tornado Warning	HUN	Cullman	23 min
Apr 27, 5:23 PM CDT	Tornado Warning Emergency	HUN	Jackson, Madison	22 min
Apr 27, 5:28 PM CDT	Tornado Warning	BMX	Marion, Winston	30 min
Apr 27, 5:30 PM CDT	Tornado Warning	HUN	Jackson, Limestone, Madison	30 min
Apr 27, 5:31 PM CDT	Tornado Warning Emergency	BMX	Jefferson, Shelby, Tuscaloosa	59 min
Apr 27, 5:38 PM CDT	Tornado Warning Emergency	BMX	Bibb, Greene, Hale, Perry, Tuscaloosa	67 min
Apr 27, 5:38 PM CDT	Tornado Warning	HUN	Franklin, Lawrence, Morgan	37 min
Apr 27, 5:39 PM CDT	Tornado Warning	BMX	Blount	21 min
Apr 27, 5:39 PM CDT	Tornado Warning Emergency	HUN	DeKalb, Marshall	36 min
Apr 27, 5:43 PM CDT	Tornado Warning	HUN	Jackson, Madison	32 min
Apr 27, 6:06 PM CDT	Tornado Warning	BMX	Greene, Marengo, Sumter	16 min
Apr 27, 6:08 PM CDT	Tornado Warning Emergency	HUN	DeKalb, Jackson, Marshall	37 min
Apr 27, 6:12 PM CDT	Tornado Warning	HUN	Limestone, Madison, Morgan	33 min
Apr 27, 6:14 PM CDT	Tornado Warning	BMX	Fayette, Marion, Walker, Winston	61 min
Apr 27, 6:18 PM CDT	Tornado Warning	BMX	Blount, Jefferson, St. Clair	57 min
Apr 27, 6:20 PM CDT	Tornado Warning	BMX	Bibb, Chilton, Greene, Hale, Perry	55 min
Apr 27, 6:20 PM CDT	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Walker	55 min
Apr 27, 6:26 PM CDT	Tornado Warning Emergency	MOB	Choctaw	64 min
Apr 27, 6:32 PM CDT	Tornado Warning	FFC	Chattooga, Dade, Walker	43 min
Apr 27, 6:33 PM CDT	Tornado Warning	HUN	Madison	27 min
Apr 27, 6:35 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	40 min
Apr 27, 6:36 PM CDT	Tornado Warning Emergency	HUN	DeKalb, Jackson	24 min
Apr 27, 6:38 PM CDT	Tornado Warning	HUN	Cullman, Morgan	37 min
Apr 27, 6:39 PM CDT	Flash Flood Warning	BMX	Blount, Jefferson, St. Clair	3 hr
Apr 27, 6:39 PM CDT	Tornado Warning Emergency	BMX	Bibb, Chilton, Shelby, Talladega	66 min
Apr 27, 6:49 PM CDT	Tornado Warning Emergency	BMX	Blount, Calhoun, Etowah, St. Clair	56 min
Apr 27, 6:55 PM CDT	Tornado Warning	HUN	Jackson, Madison	35 min
Apr 27, 6:55 PM CDT	Tornado Warning	HUN	Lawrence, Limestone, Morgan	35 min
Apr 27, 6:56 PM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lawrence	34 min
Apr 27, 6:59 PM CDT	Tornado Warning	FFC	Catoosa, Walker, Whitfield	46 min
Apr 27, 7:07 PM CDT	Tornado Warning Emergency	BMX	Bibb, Chilton, Shelby	53 min
Apr 27, 7:11 PM CDT	Tornado Warning	HUN	Cullman, Marshall, Morgan	15 min
Apr 27, 7:12 PM CDT	Tornado Warning	HUN	Limestone, Madison	33 min
Apr 27, 7:13 PM CDT	Tornado Warning	FFC	Chattooga, Floyd, Polk	62 min
Apr 27, 7:17 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Marion, Walker, Winston	43 min
Apr 27, 7:17 PM CDT	Tornado Warning Emergency	BMX	Calhoun, Cherokee, Etowah	43 min
Apr 27, 7:21 PM CDT	Tornado Warning Emergency	MOB	Choctaw	39 min
Apr 27, 7:22 PM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Morgan	23 min
Apr 27, 7:28 PM CDT	Tornado Warning	BMX	Hale, Marengo, Sumter	62 min
Apr 27, 7:31 PM CDT	Tornado Warning	BMX	Calhoun, Cleburne, Etowah, St. Clair, Shelby, Talladega	59 min
Apr 27, 7:33 PM CDT	Tornado Warning	BMX	Autauga, Coosa, Elmore, Tallapoosa	57 min
Apr 27, 7:37 PM CDT	Tornado Warning	HUN	Jackson, Madison	23 min
Apr 27, 7:43 PM CDT	Severe Thunderstorm Warning	HUN	Cullman	47 min
Apr 27, 7:52 PM CDT	Tornado Warning	HUN	Jackson	38 min
Apr 27, 7:53 PM CDT	Severe Thunderstorm Warning	HUN	Limestone, Madison, Morgan	37 min
Apr 27, 7:53 PM CDT	Tornado Warning	HUN	Cullman	37 min
Apr 27, 7:54 PM CDT	Tornado Warning	BMX	St. Clair, Shelby, Talladega	51 min
Apr 27, 8:00 PM CDT	Tornado Warning	MOB	Choctaw	60 min
Apr 27, 8:01 PM CDT	Tornado Warning	HUN	Cullman, Marshall	29 min
Apr 27, 8:02 PM CDT	Tornado Warning	BMX	Clay, Cleburne, Coosa, Randolph, Tallapoosa	58 min
Apr 27, 8:03 PM CDT	Tornado Warning	BMX	Blount	15 min
Apr 27, 8:11 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	64 min
Apr 27, 8:14 PM CDT	Severe Thunderstorm Warning	HUN	Jackson, Madison, Marshall	46 min
Apr 27, 8:17 PM CDT	Tornado Warning	BMX	Dallas, Hale, Marengo, Perry	58 min
Apr 27, 8:18 PM CDT	Tornado Warning	BMX	Calhoun, Cherokee, Cleburne	42 min
Apr 27, 8:18 PM CDT	Tornado Warning	FFC	Dade	22 min
Apr 27, 8:21 PM CDT	Tornado Warning	BMX	Calhoun, St. Clair, Talladega	21 min
Apr 27, 8:24 PM CDT	Tornado Warning	HUN	Jackson	10 min
Apr 27, 8:26 PM CDT	Tornado Warning	HUN	Cullman, Marshall	23 min
Apr 27, 8:26 PM CDT	Tornado Warning	FFC	Floyd, Haralson, Polk	49 min
Apr 27, 8:41 PM CDT	Severe Thunderstorm Warning	FFC	Carroll, Haralson, Paulding, Polk	49 min
Apr 27, 9:00 PM CDT	Severe Thunderstorm Warning	HUN	DeKalb	28 min
Apr 27, 9:03 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	42 min
Apr 27, 9:03 PM CDT	Tornado Warning	BMX	Autauga, Chilton, Dallas, Perry	57 min
Apr 27, 9:04 PM CDT	Tornado Warning	FFC	Bartow, Cherokee, Floyd, Polk	41 min
Apr 27, 9:08 PM CDT	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Floyd, Walker	52 min
Apr 27, 9:28 PM CDT	Severe Thunderstorm Warning	FFC	Carroll, Cobb, Douglas, Haralson, Paulding	21 min
Apr 27, 9:36 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Hale, Marengo, Perry	54 min
Apr 27, 9:42 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	33 min
Apr 27, 9:43 PM CDT	Severe Thunderstorm Warning	FFC	Catoosa, Murray, Whitfield	47 min
Apr 27, 9:46 PM CDT	Tornado Warning	BMX	Chilton, Coosa, Tallapoosa	37 min
Apr 27, 9:51 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Etowah	39 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.7 hours before the alert went out and 53 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 587 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: -359 m²/s²
0-3 km storm-relative helicity: -197 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

191 
WWUS20 KWNS 271843
SEL5
SPC WW 271843
ALZ000-GAZ000-MSZ000-TNZ000-280300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 235
NWS STORM PREDICTION CENTER NORMAN OK
145 PM CDT WED APR 27 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       MUCH OF ALABAMA
       NORTHWEST GEORGIA
       SOUTHEAST MISSISSIPPI
       SOUTHERN MIDDLE TENNESSEE

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 145 PM UNTIL
1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
HUNTSVILLE ALABAMA TO 60 MILES WEST SOUTHWEST OF EVERGREEN
ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 230...WW 231...WW
232...WW 233...WW 234...

DISCUSSION...A CLASSIC TORNADO OUTBREAK SITUATION IS DEVELOPING
ACROSS MUCH OF AL AS DISCRETE TORNADIC SUPERCELLS FORM OVER MS AND
TRACK ACROSS THE WATCH AREA.  STRONG LOW LEVEL AND DEEP LAYER
VERTICAL SHEAR...COMBINED WITH A MOIST AND MODERATELY UNSTABLE AIR
MASS...WILL POSE A DANGEROUS RISK OF STRONG/VIOLENT AND POTENTIALLY
LONG-TRACK TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25040.


...HART

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 7:59 PM CDT	Mesoscale Discussion	SPC	Colbert, Franklin, Lamar, Lauderdale, Lawrence, Limestone and 1 more	2 hr
Apr 26, 9:33 PM CDT	Tornado Watch PDS	SPC	Colbert, Franklin, Lauderdale	7 hr
Apr 26, 11:33 PM CDT	Mesoscale Discussion	SPC	Colbert, Franklin, Lamar, Lauderdale, Marion	117 min
Apr 27, 1:56 AM CDT	Mesoscale Discussion	SPC	Bibb, Blount, Cullman, Fayette, Greene, Hale and 12 more	64 min
Apr 27, 2:26 AM CDT	Tornado Watch	SPC	Bibb, Blount, Calhoun, Cherokee, Chilton, Clay and 29 more	6 hr
Apr 27, 8:08 AM CDT	Tornado Watch	SPC	Colbert, Cullman, DeKalb, Fayette, Franklin, Jackson and 10 more	6 hr
Apr 27, 10:45 AM CDT	Mesoscale Discussion	SPC	Greene, Lamar, Marion, Pickens, Sumter	90 min
Apr 27, 11:39 AM CDT	Mesoscale Discussion	SPC	Cullman, DeKalb, Jackson, Madison, Marshall, Morgan	66 min
Apr 27, 1:05 PM CDT	Mesoscale Discussion	SPC	Bibb, Blount, Calhoun, Cherokee, Chilton, Choctaw and 27 more	85 min
Apr 27, 2:56 PM CDT	Mesoscale Discussion	SPC	Bibb, Blount, Calhoun, Cherokee, Chilton, Choctaw and 33 more	2 hr
Apr 27, 5:01 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Butler, Calhoun, Cherokee and 38 more	89 min
Apr 27, 5:41 PM CDT	Mesoscale Discussion	SPC	Barbour, Bullock, Chambers, Crenshaw, Elmore, Lee and 6 more	34 min
Apr 27, 5:52 PM CDT	Tornado Watch PDS	SPC	Barbour, Bullock, Chambers, Elmore, Lee, Macon and 5 more	9 hr
Apr 27, 6:39 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 26 more	66 min
Apr 27, 6:19 AM CDT	Mesoscale Discussion	SPC	Bartow, Carroll, Chattooga, Cherokee, Clayton, Cobb and 22 more	56 min
Apr 27, 6:48 AM CDT	Tornado Watch	SPC	Bartow, Butts, Carroll, Catoosa, Chattooga, Cherokee and 36 more	2 hr
Apr 26, 9:13 PM CDT	Mesoscale Discussion	SPC	Benton, Bolivar, Coahoma, DeSoto, Marshall, Panola and 3 more	62 min
Apr 26, 9:58 PM CDT	Tornado Watch	SPC	DeSoto, Tunica	7 hr
Apr 27, 4:53 AM CDT	Severe Thunderstorm Watch	SPC	Bolivar, Sunflower, Washington	5 hr
Apr 27, 6:25 AM CDT	Mesoscale Discussion	SPC	Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 33 more	65 min
Apr 27, 9:48 AM CDT	Mesoscale Discussion	SPC	Claiborne, Issaquena, Washington	27 min
Apr 27, 11:02 AM CDT	Tornado Watch PDS	SPC	Adams, Alcorn, Attala, Benton, Bolivar, Calhoun and 63 more	8 hr
Apr 27, 6:27 PM CDT	Mesoscale Discussion	SPC	Clarke, Clay, Copiah, Covington, Forrest, Jasper and 22 more	33 min
Apr 27, 6:42 PM CDT	Tornado Watch	SPC	Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 13 more	3 hr

Nearby

Tornado Watches in Alabama, 2011 Tornado Watches in Georgia, 2011 Tornado Watches in Mississippi, 2011 Every tornado watch in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.