Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 68, NWS Birmingham, AL

April 24, 2021Lee County, Macon County, Tallapoosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 24, 2021, 4:55 PM CDT for Lee County, Macon County, Tallapoosa County, Alabama. It was in force for 38 min. 1 report 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
Apr 24, 2021, 4:55 PM CDT (21:55 UTC)
Expired
Apr 24, 2021, 5:33 PM CDT
In force
38 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Lee County, AL, Macon County, AL, Tallapoosa County, AL

The radar

The Maxwell AFB radar (KMXX), 7 km from the middle of the area, began a volume at 21:57 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
Apr 24, 5:06 PM CDTHAIL 14 Ese Yates Dam, ALNICKEL TO QUARTER SIZED HAIL ESTIMATED ALONG HWY 14 EAST OF TALLASSEE. TIME ESTIMATED BY RADAR.

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
Apr 24, 1:17 PM CDTSevere Thunderstorm WatchSPC8 hr
Apr 24, 4:52 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.9 hours before the alert went out and 117 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 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 855 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
855 m²/s²
0-3 km storm-relative helicity
1103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

368 
WUUS54 KBMX 242155
SVRBMX
ALC081-087-123-242245-
/O.NEW.KBMX.SV.W.0068.210424T2155Z-210424T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
455 PM CDT Sat Apr 24 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northwestern Lee County in east central Alabama...
  Northeastern Macon County in southeastern Alabama...
  Southeastern Tallapoosa County in east central Alabama...

* Until 545 PM CDT.

* At 455 PM CDT, a severe thunderstorm was located near Eclectic, or
  8 miles east of Wetumpka, moving east at 50 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Auburn, Tuskegee, Tallassee, Notasulga, Franklin, Waverly, Martin
  Dam, Liberty City, Reeves Airport, Auburn University, Tallapoosa
  City, Tuskegee National Forest, Loachapoka, Yates Dam, I 85 Rest
  Area, Chewacla State Park, Roxana, Reeltown and Yates Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3250 8546 3246 8588 3247 8587 3248 8585
      3248 8588 3250 8589 3265 8589 3266 8591
      3269 8591 3272 8561 3273 8557 3273 8550
TIME...MOT...LOC 2155Z 262DEG 45KT 3255 8605 

HAIL...1.75IN
WIND...60MPH
 
$$

32/Davis
3 follow-up statements
816 
WWUS54 KBMX 242205
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
505 PM CDT Sat Apr 24 2021

ALC081-087-123-242245-
/O.CON.KBMX.SV.W.0068.000000T0000Z-210424T2245Z/
Lee AL-Macon AL-Tallapoosa AL-
505 PM CDT Sat Apr 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHWESTERN LEE...NORTHEASTERN MACON AND SOUTHEASTERN TALLAPOOSA
COUNTIES...

At 505 PM CDT, a severe thunderstorm was located over Tallassee,
moving east at 50 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Auburn, Tuskegee, Tallassee, Notasulga, Waverly, Martin Dam, Liberty
City, Reeves Airport, Auburn University, Tallapoosa City, Loachapoka,
Yates Dam, I 85 Rest Area, Chewacla State Park, Roxana, Reeltown and
Yates Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3250 8546 3248 8585 3248 8588 3250 8589
      3265 8589 3266 8591 3269 8591 3272 8561
      3273 8557 3273 8550
TIME...MOT...LOC 2205Z 262DEG 45KT 3257 8589 

HAIL...1.25IN
WIND...60MPH
 
$$

32/Davis
518 
WWUS54 KBMX 242225
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
525 PM CDT Sat Apr 24 2021

ALC123-242234-
/O.CAN.KBMX.SV.W.0068.000000T0000Z-210424T2245Z/
Tallapoosa AL-
525 PM CDT Sat Apr 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TALLAPOOSA COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern and east central Alabama. A Severe Thunderstorm Watch
also remains in effect until 900 PM CDT for east central Alabama.

LAT...LON 3250 8546 3252 8569 3258 8574 3258 8572
      3259 8571 3261 8566 3266 8561 3268 8556
      3268 8549
TIME...MOT...LOC 2224Z 262DEG 45KT 3260 8560 

$$

ALC081-087-242245-
/O.CON.KBMX.SV.W.0068.000000T0000Z-210424T2245Z/
Lee AL-Macon AL-
525 PM CDT Sat Apr 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHWESTERN LEE AND NORTHEASTERN MACON COUNTIES...

At 524 PM CDT, a severe thunderstorm was located near Notasulga,
moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Auburn, Notasulga, Auburn University, Loachapoka and Chewacla State
Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3250 8546 3252 8569 3258 8574 3258 8572
      3259 8571 3261 8566 3266 8561 3268 8556
      3268 8549
TIME...MOT...LOC 2224Z 262DEG 45KT 3260 8560 

HAIL...1.00IN
WIND...60MPH
 
$$

32/Davis
343 
WWUS54 KBMX 242233
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
533 PM CDT Sat Apr 24 2021

ALC081-087-242243-
/O.CAN.KBMX.SV.W.0068.000000T0000Z-210424T2245Z/
Lee AL-Macon AL-
533 PM CDT Sat Apr 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LEE AND
NORTHEASTERN MACON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern and east central Alabama. A Severe Thunderstorm Watch
also remains in effect until 900 PM CDT for east central Alabama.

LAT...LON 3250 8546 3252 8569 3258 8574 3258 8572
      3259 8571 3261 8566 3266 8561 3268 8556
      3268 8549
TIME...MOT...LOC 2231Z 262DEG 45KT 3262 8546 

$$

32/Davis

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 4:37 AM CDTSpecial Weather StatementBMXLowndes68 min
Apr 24, 5:40 AM CDTSpecial Weather StatementBMXLowndes65 min
Apr 24, 6:24 AM CDTSpecial Weather StatementBMXMontgomery36 min
Apr 24, 6:26 AM CDTSpecial Weather StatementBMXPike49 min
Apr 24, 7:05 AM CDTSpecial Weather StatementBMXBarbour, Bullock, Lee, Macon, Russell55 min
Apr 24, 8:04 AM CDTSpecial Weather StatementBMXSumter26 min
Apr 24, 8:25 AM CDTSpecial Weather StatementBMXHale35 min
Apr 24, 8:55 AM CDTSpecial Weather StatementBMXPerry35 min
Apr 24, 9:02 AM CDTSpecial Weather StatementBMXMarengo28 min
Apr 24, 9:46 AM CDTSpecial Weather StatementBMXDallas29 min
Apr 24, 10:33 AM CDTSpecial Weather StatementBMXLowndes, Montgomery42 min
Apr 24, 11:05 AM CDTSpecial Weather StatementBMXMacon40 min
Apr 24, 3:11 PM CDTSpecial Weather StatementBMXPerry34 min
Apr 24, 3:22 PM CDTSpecial Weather StatementBMXMontgomery38 min
Apr 24, 3:26 PM CDTSpecial Weather StatementBMXFayette34 min
Apr 24, 3:27 PM CDTSpecial Weather StatementBMXWinston33 min
Apr 24, 3:28 PM CDTSevere Thunderstorm WarningBMXMacon, Montgomery32 min
Apr 24, 3:31 PM CDTSpecial Weather StatementBMXClay29 min
Apr 24, 3:35 PM CDTSevere Thunderstorm WarningBMXFayette, Marion, Walker, Winston40 min
Apr 24, 3:44 PM CDTSevere Thunderstorm WarningBMXMacon, Tallapoosa31 min
Apr 24, 3:58 PM CDTSevere Thunderstorm WarningBMXLee35 min
Apr 24, 4:00 PM CDTSpecial Weather StatementBMXWinston15 min
Apr 24, 4:01 PM CDTSpecial Weather StatementBMXRandolph44 min
Apr 24, 4:03 PM CDTSpecial Weather StatementBMXAutauga42 min
Apr 24, 4:14 PM CDTSpecial Weather StatementBMXWalker46 min
Apr 24, 4:14 PM CDTSevere Thunderstorm WarningBMXChambers33 min
Apr 24, 4:18 PM CDTSpecial Weather StatementBMXLowndes42 min
Apr 24, 4:22 PM CDTSpecial Weather StatementBMXRussell23 min
Apr 24, 4:29 PM CDTSpecial Weather StatementBMXBlount, Tuscaloosa61 min
Apr 24, 4:31 PM CDTSevere Thunderstorm WarningBMXJefferson, Walker29 min
Apr 24, 4:35 PM CDTSevere Thunderstorm WarningBMXElmore, Montgomery36 min
Apr 24, 4:35 PM CDTSevere Thunderstorm WarningBMXBlount, Jefferson25 min
Apr 24, 4:52 PM CDTSpecial Weather StatementBMXChambers, Randolph, Tallapoosa38 min
Apr 24, 4:58 PM CDTSevere Thunderstorm WarningBMXJefferson, St. Clair32 min
Apr 24, 5:02 PM CDTSevere Thunderstorm WarningBMXBlount, St. Clair28 min
Apr 24, 5:17 PM CDTSevere Thunderstorm WarningBMXCalhoun, Etowah, St. Clair43 min
Apr 24, 5:23 PM CDTSevere Thunderstorm WarningBMXPike52 min
Apr 24, 5:25 PM CDTSpecial Weather StatementBMXBibb, St. Clair, Shelby35 min
Apr 24, 5:37 PM CDTSevere Thunderstorm WarningBMXBibb, Shelby, Talladega23 min
Apr 24, 5:40 PM CDTSevere Thunderstorm WarningBMXCalhoun, St. Clair, Shelby, Talladega35 min
Apr 24, 5:43 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock47 min
Apr 24, 5:44 PM CDTSevere Thunderstorm WarningBMXCherokee31 min
Apr 24, 5:52 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Etowah37 min
Apr 24, 5:58 PM CDTSpecial Weather StatementBMXShelby32 min
Apr 24, 6:09 PM CDTSevere Thunderstorm WarningBMXCalhoun, Clay, Cleburne, Shelby, Talladega51 min
Apr 24, 6:12 PM CDTSevere Thunderstorm WarningBMXBarbour18 min
Apr 24, 6:22 PM CDTSevere Thunderstorm WarningBMXBarbour, Pike38 min
Apr 24, 6:28 PM CDTSevere Thunderstorm WarningBMXCleburne32 min
Apr 24, 6:37 PM CDTSpecial Weather StatementBMXClay, Randolph38 min
Apr 24, 6:48 PM CDTSevere Thunderstorm WarningBMXChambers, Clay, Randolph, Tallapoosa57 min

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.