Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Mobile, AL

March 25, 2021Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 25, 2021, 1:38 AM CDT for Crenshaw County, Alabama. It was in force for 23 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 25, 2021, 1:38 AM CDT (06:38 UTC)
Expired: Mar 25, 2021, 2:01 AM CDT
In force: 23 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 78 km from the middle of the area, began a volume at 06:39 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, 6.6 hours before the alert went out and 172 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: 24 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1447 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

600 
WUUS54 KMOB 250638
SVRMOB
ALC041-250730-
/O.NEW.KMOB.SV.W.0030.210325T0638Z-210325T0730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
138 AM CDT Thu Mar 25 2021

The National Weather Service in Mobile has issued a

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

* Until 230 AM CDT.

* At 137 AM CDT, a severe thunderstorm was located over Rutledge, or
  4 miles west of Luverne, moving east at 40 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Luverne, Rutledge, Glenwood and Petrey. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3158 8639 3176 8645 3177 8644 3186 8618
      3183 8618 3181 8620 3179 8620 3179 8615
      3166 8615 3166 8616 3165 8616 3163 8618
      3162 8618 3162 8615 3160 8615
TIME...MOT...LOC 0637Z 251DEG 35KT 3170 8633 

HAIL...0.75IN
WIND...60MPH
 
$$

1 follow-up statement

377 
WWUS54 KMOB 250701
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
201 AM CDT Thu Mar 25 2021

ALC041-250711-
/O.CAN.KMOB.SV.W.0030.000000T0000Z-210325T0730Z/
Crenshaw AL-
201 AM CDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CRENSHAW COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 3158 8639 3176 8645 3177 8644 3186 8618
      3183 8618 3181 8620 3179 8620 3179 8615
      3166 8615 3166 8616 3165 8616 3163 8618
      3162 8618 3162 8615 3160 8615
TIME...MOT...LOC 0659Z 251DEG 35KT 3178 8607 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 24, 10:19 PM CDT	Special Weather Statement	MOB	Washington	56 min
Mar 24, 10:59 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Washington	46 min
Mar 24, 11:13 PM CDT	Areal Flood Advisory	MOB	Clarke, Mobile, Washington	3 hr
Mar 24, 11:32 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Monroe	43 min
Mar 25, 12:11 AM CDT	Special Weather Statement	MOB	Monroe	49 min
Mar 25, 12:16 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	25 min
Mar 25, 1:18 AM CDT	Special Weather Statement	MOB	Conecuh	57 min
Mar 25, 1:30 AM CDT	Special Weather Statement	MOB	Crenshaw	45 min
Mar 25, 2:25 AM CDT	Special Weather Statement	MOB	Conecuh	50 min
Mar 25, 2:51 AM CDT	Special Weather Statement	MOB	Butler	39 min
Mar 25, 7:05 AM CDT	Special Weather Statement	MOB	Choctaw	40 min
Mar 25, 7:36 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw	24 min
Mar 25, 6:20 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	40 min
Mar 25, 6:58 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	24 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.