Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 27, NWS Birmingham, AL

March 27, 2021Pickens County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 27, 2021, 5:10 PM CDT for Pickens County, Alabama. It was in force for 65 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, 5:10 PM CDT (22:10 UTC)
Expired
Mar 27, 2021, 6:15 PM CDT
In force
65 min
Issued by
NWS Birmingham, AL
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

County Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 52 km from the middle of the area, began a volume at 22:11 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, 10.2 hours before the alert went out and 132 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.

397 
WUUS54 KBMX 272210
SVRBMX
ALC107-272315-
/O.NEW.KBMX.SV.W.0027.210327T2210Z-210327T2315Z/

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

The National Weather Service in Birmingham has issued a

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

* Until 615 PM CDT.

* At 510 PM CDT, a severe thunderstorm was located 7 miles southeast
  of Bent Oak, or 9 miles south of Columbus, moving northeast at 30
  mph.

  HAZARD...Ping pong 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...
  Reform, Ethelsville, North Pickens Airport, McShan, Shaw and
  Forest.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3353 8827 3353 8800 3334 8797 3330 8830
TIME...MOT...LOC 2210Z 241DEG 27KT 3337 8844 

HAIL...1.50IN
WIND...60MPH
 
$$

32/Davis
2 follow-up statements
178 
WWUS54 KBMX 272228
SVSBMX

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

ALC107-272315-
/O.CON.KBMX.SV.W.0027.000000T0000Z-210327T2315Z/
Pickens AL-
528 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHWESTERN PICKENS COUNTY...

At 527 PM CDT, a severe thunderstorm was located near Ethelsville, or
7 miles southeast of Columbus, moving northeast at 30 mph.

HAZARD...Ping pong 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...
Reform, Ethelsville, Shaw, McShan and Forest. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3353 8827 3353 8800 3339 8798 3336 8829
TIME...MOT...LOC 2227Z 245DEG 27KT 3344 8830 

HAIL...1.50IN
WIND...60MPH
 
$$

32/Davis
045 
WWUS54 KBMX 272252
SVSBMX

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

ALC107-272315-
/O.CON.KBMX.SV.W.0027.000000T0000Z-210327T2315Z/
Pickens AL-
552 PM CDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTH PICKENS COUNTY...

At 552 PM CDT, a severe thunderstorm was located 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...
Reform, Shaw and McShan. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3353 8819 3353 8800 3339 8798 3337 8818
TIME...MOT...LOC 2252Z 246DEG 34KT 3351 8805 

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, 5:39 PM CDTSevere Thunderstorm WarningBMXLamar36 min
Mar 27, 5:44 PM CDTSpecial Weather StatementBMXSt. Clair61 min
Mar 27, 5:59 PM CDTSevere Thunderstorm WarningBMXFayette, Pickens46 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.