Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 29, NWS Birmingham, AL

March 27, 2021Fayette County, Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 27, 2021, 5:59 PM CDT for Fayette County, Pickens County, Alabama. It was in force for 46 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, 2021, 5:59 PM CDT (22:59 UTC)
Expired
Mar 27, 2021, 6:45 PM CDT
In force
46 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fayette County, AL, Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 64 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 100 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 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1085 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 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.1939587897Sfc1 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
1085 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.2

Open this sounding in Storm Lab

The text

As transmitted.

045 
WUUS54 KBMX 272259
SVRBMX
ALC057-107-272345-
/O.NEW.KBMX.SV.W.0029.210327T2259Z-210327T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
559 PM CDT Sat Mar 27 2021

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Northeastern Pickens County in west central Alabama...
  Fayette County in west central Alabama...

* Until 645 PM CDT.

* At 559 PM CDT, a severe thunderstorm was located over Kennedy, or
  near Millport, moving northeast at 40 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...
  Fayette, Berry, Belk, Ashcraft Corner, Bankston, Boley Springs,
  Bevill State College Fayette, Stone Wall, Fowlers Crossroads,
  Richard Arthur Field and Fayette County Public Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3353 8795 3367 8794 3387 8753 3369 8753
      3369 8742 3360 8742 3361 8763 3358 8763
      3358 8767 3352 8767 3352 8784 3347 8784
      3342 8803 3353 8809
TIME...MOT...LOC 2259Z 244DEG 36KT 3354 8799 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
643 
WWUS54 KBMX 272323
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
623 PM CDT Sat Mar 27 2021

ALC107-272333-
/O.CAN.KBMX.SV.W.0029.000000T0000Z-210327T2345Z/
Pickens AL-
623 PM CDT Sat Mar 27 2021

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

LAT...LON 3367 8794 3387 8753 3369 8753 3369 8742
      3360 8743 3361 8763 3358 8763 3358 8767
      3352 8767 3352 8768 3353 8795
TIME...MOT...LOC 2323Z 244DEG 35KT 3363 8775 

$$

ALC057-272345-
/O.CON.KBMX.SV.W.0029.000000T0000Z-210327T2345Z/
Fayette AL-
623 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR FAYETTE COUNTY...

At 623 PM CDT, a severe thunderstorm was located near Bankston, or
near Fayette, moving northeast at 40 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...
Fayette, Berry, Belk, Bankston, Boley Springs, Bevill State College
Fayette, Stone Wall, Fowlers Crossroads, Richard Arthur Field and
Fayette County Public Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3367 8794 3387 8753 3369 8753 3369 8742
      3360 8743 3361 8763 3358 8763 3358 8767
      3352 8767 3352 8768 3353 8795
TIME...MOT...LOC 2323Z 244DEG 35KT 3363 8775 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 3:51 PM CDTSpecial Weather StatementBMXWalker24 min
Mar 27, 4:10 PM CDTSpecial Weather StatementBMXJefferson50 min
Mar 27, 4:25 PM CDTSevere Thunderstorm WarningBMXJefferson, Walker50 min
Mar 27, 4:37 PM CDTSpecial Weather StatementBMXLamar53 min
Mar 27, 5:06 PM CDTSevere Thunderstorm WarningBMXJefferson39 min
Mar 27, 5:10 PM CDTSevere Thunderstorm WarningBMXPickens65 min
Mar 27, 5:39 PM CDTSevere Thunderstorm WarningBMXLamar36 min
Mar 27, 5:44 PM CDTSpecial Weather StatementBMXSt. Clair61 min
Mar 27, 6:06 PM CDTSpecial Weather StatementBMXJefferson24 min
Mar 27, 6:40 PM CDTSpecial Weather StatementBMXEtowah65 min
Mar 27, 6:46 PM CDTSpecial Weather StatementBMXFayette29 min
Mar 27, 6:56 PM CDTSpecial Weather StatementBMXWalker64 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.