Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 83, NWS Birmingham, AL

March 27, 2011Greene County, Sumter County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 27, 2011, 7:11 AM CDT for Greene County, Sumter County, Alabama. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 27, 2011, 7:11 AM CDT (12:11 UTC)
Expired: Mar 27, 2011, 8:00 AM CDT
In force: 49 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Greene County, AL, Sumter County, AL

The radar

The Columbus AFB radar (KGWX), 119 km from the middle of the area, began a volume at 12:13 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 0.2 hours before the alert went out and 124 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: 395 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 452 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

827 
WUUS54 KBMX 271211
SVRBMX
ALC063-119-271300-
/O.NEW.KBMX.SV.W.0083.110327T1211Z-110327T1300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
711 AM CDT SUN MAR 27 2011

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL GREENE COUNTY IN WEST CENTRAL ALABAMA...
  NORTH CENTRAL SUMTER COUNTY IN WEST CENTRAL ALABAMA...

* UNTIL 800 AM CDT

* AT 708 AM CDT...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 21 MILES WEST OF
  WEST UNION...OR 30 MILES SOUTHWEST OF PICKENSVILLE...AND MOVING
  EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EUTAW...WEST UNION...PANOLA...GAINESVILLE...NEW WEST GREENE...WEST
  GREENE...BOLIGEE AND ALLISON.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 32 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

TO REPORT SEVERE WEATHER...
CALL 1-800-856-0758.

LAT...LON 3280 8837 3298 8835 3299 8817 3301 8817
      3301 8784 3278 8785 3277 8787 3276 8787
      3276 8785 3273 8785
TIME...MOT...LOC 1211Z 271DEG 40KT 3291 8858

$$

27

3 follow-up statements

440 
WWUS54 KBMX 271225
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
725 AM CDT SUN MAR 27 2011

ALC063-119-271300-
/O.CON.KBMX.SV.W.0083.000000T0000Z-110327T1300Z/
SUMTER AL-GREENE AL-
725 AM CDT SUN MAR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL GREENE
AND NORTH CENTRAL SUMTER COUNTIES UNTIL 800 AM CDT...

AT 722 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10 MILES
WEST OF PANOLA...OR 22 MILES SOUTHWEST OF ALICEVILLE...MOVING EAST AT
45 MPH.

LOCATIONS IMPACTED INCLUDE...
  EUTAW...WEST UNION...PANOLA...GAINESVILLE...NEW WEST GREENE...WEST
  GREENE...BOLIGEE...ALLISON...UNION AND WALDEN QUARTERS.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 32 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3280 8837 3298 8835 3299 8817 3301 8817
      3301 8784 3278 8785 3277 8787 3276 8787
      3276 8785 3273 8785
TIME...MOT...LOC 1225Z 271DEG 40KT 3290 8839

$$

27

950 
WWUS54 KBMX 271238
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
738 AM CDT SUN MAR 27 2011

ALC063-119-271300-
/O.CON.KBMX.SV.W.0083.000000T0000Z-110327T1300Z/
SUMTER AL-GREENE AL-
738 AM CDT SUN MAR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL GREENE
AND NORTH CENTRAL SUMTER COUNTIES UNTIL 800 AM CDT...

AT 736 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
PANOLA...OR 17 MILES SOUTH OF ALICEVILLE...MOVING EAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  EUTAW...GAINESVILLE...NEW WEST GREENE...WEST GREENE...BOLIGEE...
  ALLISON...UNION...WALDEN QUARTERS...WARSAW AND NEW MOUNT HEBRON.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 32 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3298 8830 3299 8817 3301 8817 3301 8784
      3278 8785 3277 8787 3276 8787 3276 8785
      3273 8785 3279 8832
TIME...MOT...LOC 1238Z 271DEG 40KT 3289 8822

$$

27

373 
WWUS54 KBMX 271251
SVSBMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
751 AM CDT SUN MAR 27 2011

ALC119-271301-
/O.CAN.KBMX.SV.W.0083.000000T0000Z-110327T1300Z/
SUMTER AL-
751 AM CDT SUN MAR 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SUMTER COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3301 8812 3301 8784 3278 8785 3276 8787
      3276 8785 3273 8785 3276 8811 3278 8811
      3278 8808 3280 8807 3280 8810 3282 8812
TIME...MOT...LOC 1251Z 271DEG 40KT 3288 8805

$$

ALC063-271300-
/O.CON.KBMX.SV.W.0083.000000T0000Z-110327T1300Z/
GREENE AL-
751 AM CDT SUN MAR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL GREENE
COUNTY UNTIL 800 AM CDT...

AT 749 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR WEST
GREENE...OR 11 MILES WEST OF EUTAW...MOVING EAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  EUTAW...BOLIGEE...ALLISON...UNION...WALDEN QUARTERS...CLINTON...I
  20 REST AREA NEAR EUTAW AND EUTAW MUNICIPAL AIRPORT.

THIS INCLUDES...
INTERSTATE 20 EXIT NUMBERS 32 THROUGH 45...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

TO REPORT SEVERE WEATHER...CALL 1-800-856-0758.

LAT...LON 3301 8812 3301 8784 3278 8785 3276 8787
      3276 8785 3273 8785 3276 8811 3278 8811
      3278 8808 3280 8807 3280 8810 3282 8812
TIME...MOT...LOC 1251Z 271DEG 40KT 3288 8805

$$

27

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 26, 7:12 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	37 min
Mar 26, 7:19 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Walker	41 min
Mar 26, 7:32 PM CDT	Severe Thunderstorm Warning	BMX	Walker, Winston	28 min
Mar 26, 7:39 PM CDT	Tornado Warning	BMX	Walker	36 min
Mar 26, 8:05 PM CDT	Tornado Warning	BMX	Jefferson, Walker	55 min
Mar 26, 8:21 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	24 min
Mar 26, 8:28 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	62 min
Mar 26, 8:30 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee, Etowah	60 min
Mar 26, 8:58 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Calhoun, Jefferson, St. Clair, Talladega	25 min
Mar 26, 9:13 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Cleburne, Etowah	47 min
Mar 26, 9:16 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	59 min
Mar 26, 9:44 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Marion, Walker, Winston	46 min
Mar 26, 10:12 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Clay, Cleburne, Randolph, Talladega	48 min
Mar 26, 10:16 PM CDT	Areal Flood Advisory	BMX	Calhoun, Cleburne, Jefferson, St. Clair, Shelby, Talladega	3 hr
Mar 26, 10:27 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson, Walker	63 min
Mar 26, 10:27 PM CDT	Tornado Warning	BMX	Clay, St. Clair, Talladega	15 min
Mar 26, 10:30 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Jefferson, St. Clair, Shelby, Talladega	45 min
Mar 26, 10:34 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Tuscaloosa	56 min
Mar 26, 10:45 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Cleburne, Randolph, St. Clair, Talladega	45 min
Mar 26, 11:09 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Talladega	36 min
Mar 26, 11:19 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Randolph	41 min
Mar 26, 11:28 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Tuscaloosa, Walker	16 min
Mar 27, 12:32 AM CDT	Severe Thunderstorm Warning	BMX	Randolph	15 min
Mar 27, 12:46 AM CDT	Special Weather Statement	BMX	Clay	44 min
Mar 27, 12:53 AM CDT	Special Weather Statement	BMX	Chambers, Randolph	67 min
Mar 27, 1:06 AM CDT	Tornado Warning	BMX	Chambers	17 min
Mar 27, 1:08 AM CDT	Tornado Warning	BMX	Chambers, Clay, Randolph, Tallapoosa	52 min
Mar 27, 1:12 AM CDT	Tornado Warning	BMX	Chambers, Tallapoosa	48 min
Mar 27, 1:52 AM CDT	Tornado Warning	BMX	Chambers	22 min
Mar 27, 1:53 AM CDT	Tornado Warning	BMX	Chambers, Tallapoosa	13 min
Mar 27, 2:24 AM CDT	Special Weather Statement	BMX	Winston	51 min
Mar 27, 4:00 AM CDT	Special Weather Statement	BMX	Cherokee	45 min
Mar 27, 4:41 AM CDT	Special Weather Statement	BMX	Cherokee, Etowah	49 min
Mar 27, 6:16 AM CDT	Special Weather Statement	BMX	Greene	44 min
Mar 27, 6:26 AM CDT	Severe Thunderstorm Warning	BMX	Greene, Hale, Tuscaloosa	49 min
Mar 27, 7:01 AM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Tuscaloosa	44 min
Mar 27, 7:42 AM CDT	Severe Thunderstorm Warning	BMX	Bibb, Chilton, Coosa	48 min
Mar 27, 7:55 AM CDT	Special Weather Statement	BMX	Greene, Hale	50 min
Mar 27, 7:58 AM CDT	Special Weather Statement	BMX	Shelby	47 min
Mar 27, 8:32 AM CDT	Special Weather Statement	BMX	Coosa	43 min
Mar 27, 9:45 AM CDT	Special Weather Statement	BMX	Chilton	45 min
Mar 27, 10:02 AM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton, Coosa, Elmore	28 min
Mar 27, 10:27 AM CDT	Special Weather Statement	BMX	Coosa	33 min
Mar 27, 10:40 AM CDT	Special Weather Statement	BMX	Chilton	50 min
Mar 27, 11:02 AM CDT	Special Weather Statement	BMX	Tallapoosa	43 min
Mar 27, 11:37 AM CDT	Special Weather Statement	BMX	Chambers	23 min
Mar 27, 11:41 AM CDT	Special Weather Statement	BMX	Elmore	49 min
Mar 27, 12:05 PM CDT	Special Weather Statement	BMX	Russell	40 min
Mar 27, 12:12 PM CDT	Severe Thunderstorm Warning	BMX	Russell	48 min
Mar 27, 1:29 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	31 min
Mar 27, 6:13 PM CDT	Special Weather Statement	BMX	Barbour	47 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning 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.