Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 152, NWS Mobile, AL

June 23, 2021Covington County, Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 23, 2021, 8:02 PM CDT for Covington County, Crenshaw County, Alabama. It was in force for 30 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: Jun 23, 2021, 8:02 PM CDT (01:02 UTC)
Expired: Jun 23, 2021, 8:32 PM CDT
In force: 30 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Covington County, AL, Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 90 km from the middle of the area, began a volume at 01:02 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 00:00Z, 1.0 hours before the alert went out and 200 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: 90 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1452 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

783 
WUUS54 KMOB 240102
SVRMOB
ALC039-041-240145-
/O.NEW.KMOB.SV.W.0152.210624T0102Z-210624T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
802 PM CDT Wed Jun 23 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southeastern Crenshaw County in south central Alabama...
  Northeastern Covington County in south central Alabama...

* Until 845 PM CDT.

* At 801 PM CDT, a severe thunderstorm was located over Gantt, or 6
  miles north of Andalusia, moving east at 15 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...
  River Falls, Dozier, Heath and Gantt. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3134 8654 3147 8657 3157 8620 3132 8620
TIME...MOT...LOC 0101Z 257DEG 13KT 3141 8650 

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

1 follow-up statement

395 
WWUS54 KMOB 240132
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
832 PM CDT Wed Jun 23 2021

ALC039-041-240142-
/O.CAN.KMOB.SV.W.0152.000000T0000Z-210624T0145Z/
Crenshaw AL-Covington AL-
832 PM CDT Wed Jun 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CRENSHAW AND
NORTHEASTERN COVINGTON 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.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 3134 8654 3147 8657 3157 8620 3132 8620
TIME...MOT...LOC 0128Z 257DEG 13KT 3144 8637 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:07 PM CDT	Special Weather Statement	MOB	Conecuh	38 min
Jun 23, 7:35 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	40 min
Jun 24, 1:02 PM CDT	Special Weather Statement	MOB	Mobile	43 min
Jun 24, 1:30 PM CDT	Special Marine Warning	MOB		90 min
Jun 24, 2:07 PM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
Jun 24, 2:11 PM CDT	Special Marine Warning	MOB		94 min
Jun 24, 2:52 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jun 24, 3:35 PM CDT	Special Weather Statement	MOB	Baldwin	40 min
Jun 24, 3:46 PM CDT	Special Marine Warning	MOB		44 min
Jun 24, 3:59 PM CDT	Special Weather Statement	MOB	Baldwin	46 min
Jun 24, 4:13 PM CDT	Special Weather Statement	MOB	Baldwin	47 min
Jun 24, 4:16 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jun 24, 4:31 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	13 min
Jun 24, 5:16 PM CDT	Special Weather Statement	MOB	Mobile	44 min
Jun 24, 5:22 PM CDT	Special Weather Statement	MOB	Conecuh	53 min
Jun 24, 5:32 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	43 min
Jun 24, 5:56 PM CDT	Areal Flood Advisory	MOB	Mobile, Washington	3 hr
Jun 24, 5:58 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	62 min
Jun 24, 6:45 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Conecuh, Escambia, Monroe	60 min

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.