Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 106, NWS Birmingham, AL

May 4, 2021Tallapoosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 4, 2021, 6:19 PM CDT for Tallapoosa County, Alabama. It was in force for 56 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 4, 2021, 6:19 PM CDT (23:19 UTC)
Expired
May 4, 2021, 7:15 PM CDT
In force
56 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Tallapoosa County, AL

The radar

The Maxwell AFB radar (KMXX), 22 km from the middle of the area, began a volume at 23:21 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 was reported inside it

TimeReportWhereRemark
May 4, 6:42 PM CDTTSTM WND DMGAlexander City, ALNUMEROUS TREES AND POWERLINES DOWN IN ALEXANDER CITY.
May 4, 6:45 PM CDTTSTM WND DMGJacksons' Gap, ALTREES BLOWN DOWN AT VARIOUS LOCATIONS ACROSS THE COUNTY. SOME STRUCTURES WERE HEAVILY DAMAGED BY FALLEN TREES, WITH AT LEAST 30 INSTANCES OF ROADS BLOCKED BY FALLEN TREES.
May 4, 6:50 PM CDTTSTM WND DMG3 Ssw Reeltown, ALTREE ON A HOME ON HWY 49 S. 1 MINOR INJURY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 4, 3:31 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.3 hours before the alert went out and 101 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2021-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2158 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2021-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2158 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.3

Open this sounding in Storm Lab

The text

As transmitted.

919 
WUUS54 KBMX 042319
SVRBMX
ALC123-050015-
/O.NEW.KBMX.SV.W.0106.210504T2319Z-210505T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
619 PM CDT Tue May 4 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Tallapoosa County in east central Alabama...

* Until 715 PM CDT.

* At 618 PM CDT, severe thunderstorms were located along a line
  extending from near Parkdale to near Maxwell Air Force Base, moving
  east at 50 mph.

  HAZARD...60 mph wind gusts. This line of storms has a history of 
           producing wind damage.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Alexander City, Tallassee, Dadeville, Camp Hill, Jacksons' Gap, New
  Site, Goldville, Martin Dam, Reeves Airport, Southern Lake Martin,
  Hillabee Creek, Eastern Lake Martin, Liberty City, Tallapoosa City,
  Northern Lake Martin, Wind Creek State Park, Still Waters Resort,
  Western Lake Martin, Daviston and Hackneyville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for east central
Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3273 8560 3270 8570 3259 8570 3258 8572
      3258 8580 3249 8580 3249 8588 3250 8589
      3265 8589 3268 8591 3275 8588 3276 8596
      3277 8596 3277 8597 3276 8597 3276 8601
      3306 8601 3310 8597 3311 8559
TIME...MOT...LOC 2318Z 272DEG 44KT 3308 8616 3242 8635 

HAIL...<.75IN
WIND...60MPH
 
$$

89^GSatterwhite
2 follow-up statements
806 
WWUS54 KBMX 042359
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
659 PM CDT Tue May 4 2021

ALC123-050015-
/O.CON.KBMX.SV.W.0106.000000T0000Z-210505T0015Z/
Tallapoosa AL-
659 PM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR TALLAPOOSA COUNTY...

At 659 PM CDT, severe thunderstorms were located along a line
extending from near Goldville to near Waverly, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Tallassee, Dadeville, Camp Hill, Jacksons' Gap, New Site, Goldville,
Liberty City, Reeves Airport, Tallapoosa City, Still Waters Resort,
Southern Lake Martin, Eastern Lake Martin, Northern Lake Martin,
Daviston, Susannah Crossing, Maxwell Gunter Recreation Area, Blue
Creek Marina, Horseshoe Bend National Military Park, Dare Park and
Eagle Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for east central
Alabama.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3249 8588 3310 8584 3311 8559 3273 8560
      3270 8570 3259 8570 3258 8572 3258 8580
      3249 8580
TIME...MOT...LOC 2359Z 259DEG 47KT 3310 8571 3272 8562 

HAIL...<.75IN
WIND...60MPH
 
$$

89^GSatterwhite
592 
WWUS54 KBMX 050007 RRA
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
707 PM CDT Tue May 4 2021

ALC123-050017-
/O.EXP.KBMX.SV.W.0106.000000T0000Z-210505T0015Z/
Tallapoosa AL-
707 PM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR TALLAPOOSA COUNTY WILL EXPIRE
AT 715 PM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with these thunderstorms.

A Tornado Watch remains in effect until 1000 PM CDT for east central
Alabama.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
southeastern and east central Alabama.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Birmingham.

LAT...LON 3249 8588 3310 8584 3311 8559 3273 8560
      3270 8570 3259 8570 3258 8572 3258 8580
      3249 8580
TIME...MOT...LOC 0007Z 272DEG 44KT 3310 8560 3272 8551 

$$

89^GSatterwhite

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 7:02 PM CDTSevere Thunderstorm WarningBMXElmore, Montgomery43 min
May 3, 7:13 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Perry32 min
May 3, 7:25 PM CDTFlash Flood WarningBMXAutauga, Elmore, Macon, Montgomery5 hr
May 3, 7:29 PM CDTAreal Flood AdvisoryBMXChambers, Lee, Macon, Tallapoosa2 hr
May 3, 7:40 PM CDTSevere Thunderstorm WarningBMXElmore, Macon, Montgomery47 min
May 3, 7:46 PM CDTSpecial Weather StatementBMXChilton44 min
May 3, 8:30 PM CDTSpecial Weather StatementBMXLee, Macon45 min
May 3, 8:36 PM CDTSpecial Weather StatementBMXChilton39 min
May 3, 8:51 PM CDTAreal Flood AdvisoryBMXBibb, Chilton, Perry3 hr
May 3, 8:59 PM CDTSpecial Weather StatementBMXRussell46 min
May 3, 9:31 PM CDTSpecial Weather StatementBMXShelby59 min
May 4, 7:27 AM CDTSpecial Weather StatementBMXMarion48 min
May 4, 7:57 AM CDTSpecial Weather StatementBMXLamar, Marion48 min
May 4, 9:07 AM CDTSevere Thunderstorm WarningBMXWinston38 min
May 4, 10:26 AM CDTSevere Thunderstorm WarningBMXBlount23 min
May 4, 10:59 AM CDTSpecial Weather StatementBMXWalker31 min
May 4, 11:00 AM CDTAreal Flood AdvisoryBMXFayette, Lamar, Walker3 hr
May 4, 11:06 AM CDTAreal Flood AdvisoryBMXBlount, Calhoun, Cherokee, Etowah, St. Clair3 hr
May 4, 11:12 AM CDTTornado WarningBMXFayette, Tuscaloosa21 min
May 4, 11:25 AM CDTSevere Thunderstorm WarningBMXJefferson, Walker50 min
May 4, 11:45 AM CDTAreal Flood AdvisoryBMXJefferson2 hr
May 4, 11:49 AM CDTSevere Thunderstorm WarningBMXBlount, Jefferson, St. Clair26 min
May 4, 12:03 PM CDTFlash Flood WarningBMXBlount, Etowah, St. Clair117 min
May 4, 12:10 PM CDTFlash Flood WarningBMXJefferson7 hr
May 4, 12:14 PM CDTSevere Thunderstorm WarningBMXCalhoun, St. Clair, Talladega46 min
May 4, 12:17 PM CDTSevere Thunderstorm WarningBMXJefferson, St. Clair, Shelby28 min
May 4, 12:35 PM CDTFlash Flood WarningBMXCalhoun, Etowah, St. Clair, Talladega3 hr
May 4, 12:56 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Talladega64 min
May 4, 1:15 PM CDTSevere Thunderstorm WarningBMXJefferson, Shelby30 min
May 4, 1:25 PM CDTTornado WarningBMXCleburne24 min
May 4, 1:39 PM CDTFlash Flood WarningBMXJefferson, St. Clair, Shelby5 hr
May 4, 2:07 PM CDTAreal Flood WarningBMXBlount, Calhoun, Cherokee, Etowah, St. Clair6 hr
May 4, 2:54 PM CDTAreal Flood AdvisoryBMXClay, Cleburne, Randolph, Shelby, Talladega3 hr
May 4, 3:50 PM CDTSevere Thunderstorm WarningBMXSumter55 min
May 4, 4:01 PM CDTFlash Flood WarningBMXShelby, Talladega3 hr
May 4, 4:05 PM CDTFlash Flood WarningBMXBibb, Tuscaloosa3 hr
May 4, 4:13 PM CDTSevere Thunderstorm WarningBMXTuscaloosa29 min
May 4, 4:20 PM CDTSevere Thunderstorm WarningBMXGreene55 min
May 4, 4:30 PM CDTSevere Thunderstorm WarningBMXHale, Marengo63 min
May 4, 4:45 PM CDTSpecial Weather StatementBMXWalker, Winston30 min
May 4, 5:00 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Dallas, Perry75 min
May 4, 5:17 PM CDTFlash Flood Warning EmergencyCatastrophic damage threatBMXJefferson, Shelby3 hr
May 4, 5:29 PM CDTSevere Thunderstorm WarningBMXAutauga, Chilton, Lowndes76 min
May 4, 5:30 PM CDTTornado WarningBMXChilton, Perry30 min
May 4, 5:38 PM CDTTornado WarningBMXShelby12 min
May 4, 5:54 PM CDTSevere Thunderstorm WarningBMXCoosa50 min
May 4, 5:59 PM CDTSevere Thunderstorm WarningBMXElmore61 min
May 4, 6:07 PM CDTSevere Thunderstorm WarningBMXMontgomery68 min
May 4, 6:24 PM CDTTornado WarningBMXElmore, Montgomery13 min
May 4, 6:37 PM CDTSevere Thunderstorm WarningBMXBullock, Macon, Pike83 min
May 4, 6:41 PM CDTSevere Thunderstorm WarningBMXChambers, Lee61 min
May 4, 6:48 PM CDTRiver Flood WarningBMXBibb, Jefferson, Shelby22 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021

Sources

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