Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 32, NWS Birmingham, AL

March 28, 2021Fayette County, Walker County, Winston County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 28, 2021, 4:32 AM CDT for Fayette County, Walker County, Winston County, Alabama. It was in force for 47 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 28, 2021, 4:32 AM CDT (09:32 UTC)
Expired: Mar 28, 2021, 5:19 AM CDT
In force: 47 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 70.0 mph

Counties Fayette County, AL, Walker County, AL, Winston County, AL

The radar

The Columbus AFB radar (KGWX), 91 km from the middle of the area, began a volume at 09:33 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 27, 11:27 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.5 hours before the alert went out and 105 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: 643 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1359 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

As transmitted.

081 
WUUS54 KBMX 280932
SVRBMX
ALC057-127-133-281030-
/O.NEW.KBMX.SV.W.0032.210328T0932Z-210328T1030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
432 AM CDT Sun Mar 28 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northwestern Walker County in central Alabama...
  Winston County in northwestern Alabama...
  Northeastern Fayette County in west central Alabama...

* Until 530 AM CDT.

* At 431 AM CDT, a severe thunderstorm was located near Brilliant, or
  near Winfield, moving east at 65 mph.

  HAZARD...70 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Jasper, Carbon Hill, Lynn, Arley, Double Springs, Addison, Glen
  Allen, Kansas, Nauvoo, Eldridge, Curry, Houston Recreational Area,
  Camp McDowell, Nesmith, Ashbank, Poplar Springs, Falls City,
  Moreland, Smith Lake and Helicon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for central,
northwestern and west central Alabama.

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3399 8711 3399 8715 3391 8709 3379 8761
      3391 8774 3392 8764 3419 8763 3429 8711
TIME...MOT...LOC 0931Z 256DEG 55KT 3398 8770 

HAIL...0.88IN
WIND...70MPH
 
$$

05

5 follow-up statements

115 
WWUS54 KBMX 280945
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
445 AM CDT Sun Mar 28 2021

ALC057-280955-
/O.CAN.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Fayette AL-
445 AM CDT Sun Mar 28 2021

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

A Tornado Watch remains in effect until 600 AM CDT for central,
northwestern and west central Alabama.

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3381 8753 3387 8753 3387 8764 3419 8763
TIME...MOT...LOC 0945Z 256DEG 55KT 3403 8744 

$$

ALC127-133-281030-
/O.CON.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Walker AL-Winston AL-
445 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CDT
FOR NORTHWESTERN WALKER AND WINSTON COUNTIES...

At 445 AM CDT, a severe thunderstorm was located over Poplar Springs,
or near Lynn, moving east at 65 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jasper, Carbon Hill, Lynn, Arley, Double Springs, Addison, Kansas,
Nauvoo, Eldridge, Curry, Houston Recreational Area, Camp McDowell,
Nesmith, Ashbank, Poplar Springs, Falls City, Moreland, Smith Lake,
Helicon and Inmanfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for central,
northwestern and west central Alabama.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3381 8753 3387 8753 3387 8764 3419 8763
TIME...MOT...LOC 0945Z 256DEG 55KT 3403 8744 

HAIL...0.88IN
WIND...60MPH
 
$$

05

471 
WWUS54 KBMX 280956
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
456 AM CDT Sun Mar 28 2021

ALC127-133-281030-
/O.CON.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Walker AL-Winston AL-
456 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CDT
FOR NORTHWESTERN WALKER AND EASTERN WINSTON COUNTIES...

At 456 AM CDT, a severe thunderstorm was located over Falls City, or
near Arley, moving east at 65 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jasper, Carbon Hill, Arley, Double Springs, Addison, Curry, Houston
Recreational Area, Camp McDowell, Nesmith, Poplar Springs, Falls
City, Moreland, Smith Lake, Helicon, Inmanfield, Sardis, Corinth Rec
Area, Winston Free State Barn, Houston and Mill Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for central and
northwestern Alabama.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3383 8743 3389 8751 3403 8740 3422 8747
TIME...MOT...LOC 0956Z 256DEG 55KT 3407 8726 

HAIL...0.88IN
WIND...60MPH
 
$$

05

281 
WWUS54 KBMX 281006
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
506 AM CDT Sun Mar 28 2021

ALC127-133-281030-
/O.CON.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Walker AL-Winston AL-
506 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CDT
FOR NORTH CENTRAL WALKER AND EASTERN WINSTON COUNTIES...

At 506 AM CDT, a severe thunderstorm was located near Helicon, or 7
miles east of Arley, moving east at 65 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jasper, Arley, Addison, Curry, Nesmith, Smith Lake, Helicon,
Inmanfield, Sardis, Falls City, Moreland, Houston, Mill Branch, Maple
Branch, Hullett Branch, Little Dismal Creek, Bull Branch, Yellow
Creek, Coon Creek and Powellville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for central and
northwestern Alabama.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3385 8733 3390 8745 3404 8729 3425 8732
TIME...MOT...LOC 1006Z 256DEG 55KT 3411 8708 

HAIL...0.88IN
WIND...60MPH
 
$$

05

429 
WWUS54 KBMX 281013
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
513 AM CDT Sun Mar 28 2021

ALC127-133-281030-
/O.CON.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Walker AL-Winston AL-
513 AM CDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CDT
FOR NORTH CENTRAL WALKER AND EASTERN WINSTON COUNTIES...

At 513 AM CDT, a severe thunderstorm was located near Good Hope, or
near Cullman, moving east at 65 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jasper, Addison, Curry, Nesmith, Smith Lake, Helicon, Inmanfield,
Sardis, Mill Branch, Maple Branch, Little Dismal Creek, Powellville,
Hidden Cove Campground, Battle Branch, Addison Town Hall, Panther
Branch, Wilson Bend, Devils Branch, Upshaw and Duncan Bridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for northwestern
Alabama.

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3387 8726 3395 8734 3408 8718 3428 8719
TIME...MOT...LOC 1013Z 256DEG 55KT 3414 8695 

HAIL...0.88IN
WIND...60MPH
 
$$

05

008 
WWUS54 KBMX 281019
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
519 AM CDT Sun Mar 28 2021

ALC127-133-281028-
/O.CAN.KBMX.SV.W.0032.000000T0000Z-210328T1030Z/
Walker AL-Winston AL-
519 AM CDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WALKER AND
EASTERN WINSTON COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CDT for northwestern
Alabama.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
central Alabama.

LAT...LON 3429 8711 3399 8711 3399 8715 3391 8709
      3387 8726 3395 8734 3408 8718 3428 8719
TIME...MOT...LOC 1017Z 256DEG 55KT 3416 8685 

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 2:47 AM CDT	Severe Thunderstorm Warning	BMX	Marion	43 min
Mar 28, 3:25 AM CDT	Special Weather Statement	BMX	Winston	35 min
Mar 28, 3:47 AM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar, Marion	58 min
Mar 28, 4:15 AM CDT	Special Weather Statement	BMX	Winston	45 min
Mar 28, 5:17 AM CDT	Special Weather Statement	BMX	Walker	43 min
Mar 28, 5:46 AM CDT	Special Weather Statement	BMX	Marshall	29 min
Mar 28, 6:01 AM CDT	Special Weather Statement	BMX	Tuscaloosa, Walker	44 min
Mar 28, 6:13 AM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson, Walker	62 min
Mar 28, 6:27 AM CDT	Special Weather Statement	BMX	Jefferson, Tuscaloosa	63 min
Mar 28, 6:34 AM CDT	Special Weather Statement	BMX	DeKalb	26 min
Mar 28, 6:46 AM CDT	Special Weather Statement	BMX	Blount, Etowah	59 min
Mar 28, 6:59 AM CDT	Special Weather Statement	BMX	St. Clair, Shelby	61 min
Mar 28, 7:13 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson, St. Clair, Shelby	32 min
Mar 28, 7:19 AM CDT	Special Weather Statement	BMX	Cherokee	26 min
Mar 28, 7:37 AM CDT	Severe Thunderstorm Warning	BMX	Calhoun, St. Clair, Talladega	38 min
Mar 28, 7:41 AM CDT	Special Weather Statement	BMX	Bibb, Shelby	64 min
Mar 28, 7:45 AM CDT	Special Weather Statement	BMX	Cherokee	30 min
Mar 28, 7:50 AM CDT	Severe Thunderstorm Warning	BMX	Shelby	40 min
Mar 28, 8:05 AM CDT	Special Weather Statement	BMX	Clay, Talladega	55 min
Mar 28, 8:22 AM CDT	Special Weather Statement	BMX	Coosa	23 min
Mar 28, 8:23 AM CDT	Special Weather Statement	BMX	Perry	37 min
Mar 28, 8:38 AM CDT	Special Weather Statement	BMX	Randolph	37 min
Mar 28, 9:40 AM CDT	Special Weather Statement	BMX	Clay	35 min
Mar 28, 9:44 AM CDT	River Flood Warning	BMX	Cherokee, Etowah, St. Clair	8 days
Mar 28, 10:03 AM CDT	Special Weather Statement	BMX	Randolph	42 min
Mar 28, 10:33 AM CDT	Special Weather Statement	BMX	Chambers	42 min
Mar 28, 12:38 PM CDT	River Flood Warning	BMX	Sumter	57 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.