Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 39, NWS Mobile, AL

March 31, 2021Wilcox County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 31, 2021, 1:43 PM CDT for Wilcox 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 31, 2021, 1:43 PM CDT (18:43 UTC)
Expired: Mar 31, 2021, 2:30 PM CDT
In force: 47 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Wilcox County, AL

The radar

The Birmingham radar (KBMX), 132 km from the middle of the area, began a volume at 18:43 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 31, 11:19 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.7 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-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: 455 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 527 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 283 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

As transmitted.

530 
WUUS54 KMOB 311843
SVRMOB
ALC131-311930-
/O.NEW.KMOB.SV.W.0039.210331T1843Z-210331T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
143 PM CDT Wed Mar 31 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Wilcox County in south central Alabama...

* Until 230 PM CDT.

* At 143 PM CDT, a severe thunderstorm was located 5 miles northeast
  of Vineland, or 14 miles northeast of Thomasville, 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...
  Camden and Pine Hill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3217 8729 3214 8728 3214 8725 3212 8726
      3208 8719 3205 8718 3205 8686 3196 8686
      3196 8691 3190 8691 3199 8767 3200 8766
      3201 8762 3213 8762 3213 8752 3217 8752
TIME...MOT...LOC 1843Z 274DEG 42KT 3208 8759 

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

JLH

1 follow-up statement

600 
WWUS54 KMOB 311915
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
215 PM CDT Wed Mar 31 2021

ALC131-311930-
/O.CON.KMOB.SV.W.0039.000000T0000Z-210331T1930Z/
Wilcox AL-
215 PM CDT Wed Mar 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR CENTRAL WILCOX COUNTY...

At 215 PM CDT, a severe thunderstorm was located 6 miles north of
Camden, moving east 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...
Camden and Pine Hill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3217 8729 3214 8728 3214 8725 3212 8726
      3208 8719 3205 8718 3205 8686 3196 8686
      3196 8691 3190 8691 3199 8767 3200 8766
      3201 8762 3213 8762 3213 8752 3217 8752
TIME...MOT...LOC 1915Z 280DEG 37KT 3208 8726 

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

JLH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 7:45 PM CDT	Areal Flood Advisory	MOB	Washington	108 min
Mar 30, 8:55 PM CDT	River Flood Warning	MOB	Baldwin, Mobile	21 days
Mar 31, 3:35 AM CDT	Gale Watch	MOB		6 hr
Mar 31, 3:35 AM CDT	Gale Warning	MOB		33 hr
Mar 31, 3:35 AM CDT	Marine Dense Fog Advisory	MOB		8 hr
Mar 31, 3:35 AM CDT	Small Craft Advisory	MOB		57 hr
Mar 31, 12:25 PM CDT	Special Weather Statement	MOB	Choctaw	50 min
Mar 31, 12:51 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	54 min
Mar 31, 1:01 PM CDT	Tornado Warning	MOB	Choctaw	9 min
Mar 31, 1:29 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	61 min
Mar 31, 1:43 PM CDT	Freeze Watch	MOB	Butler, Choctaw, Clarke, Conecuh, Crenshaw, Monroe and 2 more	13 hr
Mar 31, 1:45 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	15 min
Mar 31, 2:04 PM CDT	Special Weather Statement	MOB	Washington	56 min
Mar 31, 2:14 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe, Wilcox	61 min
Mar 31, 3:15 PM CDT	Special Weather Statement	MOB	Butler, Crenshaw	60 min
Mar 31, 3:58 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	33 min
Mar 31, 4:13 PM CDT	Severe Thunderstorm Warning	MOB	Covington	47 min
Mar 31, 4:30 PM CDT	Special Weather Statement	MOB	Baldwin, Covington, Escambia, Mobile	45 min
Mar 31, 4:40 PM CDT	Severe Thunderstorm Warning	MOB	Covington	44 min
Mar 31, 5:03 PM CDT	Special Marine Warning	MOB		42 min
Mar 31, 6:20 PM CDT	Special Marine Warning	MOB		26 min
Mar 31, 6:23 PM CDT	Special Marine Warning	MOB		65 min
Mar 31, 6:49 PM CDT	Special Marine Warning	MOB		62 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.