Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 42, NWS Mobile, AL

March 31, 2021Butler County, Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 31, 2021, 3:58 PM CDT for Butler County, Crenshaw County, Alabama. It was in force for 33 min. 12 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 31, 2021, 3:58 PM CDT (20:58 UTC)
Expired
Mar 31, 2021, 4:31 PM CDT
In force
33 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Butler County, AL, Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 79 km from the middle of the area, began a volume at 20:57 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.

What was reported inside it

TimeReportWhereRemark
Mar 31, 4:06 PM CDTTSTM WND DMG6 Ese Pigeon Creek, ALTREE DOWN NEAR INTERSECTION OF WOODS RD & FIVE POINTS RD. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:10 PM CDTTSTM WND DMG2 Ne Luverne, ALTREE DOWN ON PETREY HWY AT CITY LIMITS. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:10 PM CDTTSTM WND DMG5 Ssw Luverne, ALMULTIPLE TREES DOWN NEAR SPRINGHILL RD & MT IDA RD INTERSECTION. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:10 PM CDTTSTM WND DMG5 Wnw Brantley, ALTREE DOWN ON COMPTON RD. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:10 PM CDTTSTM WND DMG6 W Brantley, ALTREE AND POWERLINE DOWN NEAR 3930 CAMERON CHAPEL RD. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:14 PM CDTTSTM WND DMGBrantley, ALDOWNED POWERLINE NEAR N SASSER ST AT CAMELIA VILLAGE APTS. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:14 PM CDTTSTM WND DMGBrantley, ALTREE DOWN ON ELLIS ST. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:15 PM CDTTSTM WND DMG1 Ne Brantley, ALTREE DOWN NEAR 700 CARTER RD. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:15 PM CDTTSTM WND DMGBrantley, ALDOWNED POWERLINE ON EAST MILL STREET. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:16 PM CDTTSTM WND DMG6 E Dozier, ALTREE DOWN ON ROSE HILL RD. NEAR HWY 331. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:18 PM CDTTSTM WND DMG4 Sw Bullock, ALTREE DOWN NEAR INTERSECTION OF OLD NOTCH RD AND MORGAN HILL RD. TIME ESTIMATED BASED ON RADAR.
Mar 31, 4:20 PM CDTTSTM WND DMG2 N Bullock, ALTREE DOWN ON STRICKLIN RD. TIME ESTIMATED BASED ON RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 31, 11:19 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.0 hours before the alert went out and 181 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 2021-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 455 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2021-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 square meters per square second.19395878Sfc1 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
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.

868 
WUUS54 KMOB 312058
SVRMOB
ALC013-041-312145-
/O.NEW.KMOB.SV.W.0042.210331T2058Z-210331T2145Z/

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

The National Weather Service in Mobile has issued a

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

* Until 445 PM CDT.

* At 358 PM CDT, severe thunderstorms were located along a line
  extending from 9 miles southwest of Highland Home to 8 miles west
  of Rutledge to 10 miles east of McKenzie, moving east at 60 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...
  Luverne, Brantley, Rutledge, Dozier, Glenwood and Petrey. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3153 8620 3144 8620 3144 8625 3146 8628
      3153 8628 3148 8637 3149 8640 3153 8640
      3152 8652 3154 8658 3171 8648 3192 8643
      3189 8618 3179 8620 3179 8615 3166 8615
      3166 8616 3162 8618 3162 8615 3154 8614
TIME...MOT...LOC 2058Z 283DEG 50KT 3184 8641 3171 8645 3160 8654 

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

JLH
2 follow-up statements
199 
WWUS54 KMOB 312115
SVSMOB

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

ALC013-312124-
/O.CAN.KMOB.SV.W.0042.000000T0000Z-210331T2145Z/
Butler AL-
415 PM CDT Wed Mar 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BUTLER COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 500 PM CDT for
south central Alabama. A Severe Thunderstorm Watch also remains in
effect until 700 PM CDT for south central Alabama.

LAT...LON 3153 8620 3144 8620 3144 8625 3146 8628
      3153 8628 3148 8637 3149 8640 3153 8640
      3153 8644 3166 8631 3178 8622 3179 8620
      3179 8615 3166 8615 3166 8616 3162 8618
      3162 8615 3154 8614
TIME...MOT...LOC 2114Z 283DEG 50KT 3179 8618 3166 8622 3156 8631 

$$

ALC041-312145-
/O.CON.KMOB.SV.W.0042.000000T0000Z-210331T2145Z/
Crenshaw AL-
415 PM CDT Wed Mar 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN CRENSHAW COUNTY...

At 414 PM CDT, severe thunderstorms were located along a line
extending from 4 miles south of Petrey to 3 miles west of Glenwood to
3 miles southwest of Brantley, moving east at 60 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, Brantley, Dozier and Glenwood. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3153 8620 3144 8620 3144 8625 3146 8628
      3153 8628 3148 8637 3149 8640 3153 8640
      3153 8644 3166 8631 3178 8622 3179 8620
      3179 8615 3166 8615 3166 8616 3162 8618
      3162 8615 3154 8614
TIME...MOT...LOC 2114Z 283DEG 50KT 3179 8618 3166 8622 3156 8631 

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

JLH
272 
WWUS54 KMOB 312131
SVSMOB

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

ALC041-312141-
/O.CAN.KMOB.SV.W.0042.000000T0000Z-210331T2145Z/
Crenshaw AL-
431 PM CDT Wed Mar 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CRENSHAW COUNTY
IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 500 PM CDT for
south central Alabama. A Severe Thunderstorm Watch also remains in
effect until 700 PM CDT for south central Alabama.

LAT...LON 3153 8620 3144 8620 3144 8625 3146 8628
      3153 8628 3148 8637 3149 8640 3153 8640
      3153 8644 3166 8631 3178 8622 3179 8620
      3179 8615 3166 8615 3166 8616 3162 8618
      3162 8615 3154 8614
TIME...MOT...LOC 2130Z 283DEG 50KT 3174 8592 3161 8596 3151 8605 

$$

JLH

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 7:45 PM CDTAreal Flood AdvisoryMOBWashington108 min
Mar 30, 8:55 PM CDTRiver Flood WarningMOBBaldwin, Mobile21 days
Mar 31, 3:35 AM CDTGale WatchMOB6 hr
Mar 31, 3:35 AM CDTGale WarningMOB33 hr
Mar 31, 3:35 AM CDTMarine Dense Fog AdvisoryMOB8 hr
Mar 31, 3:35 AM CDTSmall Craft AdvisoryMOB57 hr
Mar 31, 12:25 PM CDTSpecial Weather StatementMOBChoctaw50 min
Mar 31, 12:51 PM CDTSevere Thunderstorm WarningMOBChoctaw54 min
Mar 31, 1:01 PM CDTTornado WarningMOBChoctaw9 min
Mar 31, 1:29 PM CDTSevere Thunderstorm WarningMOBClarke61 min
Mar 31, 1:43 PM CDTFreeze WatchMOBButler, Choctaw, Clarke, Conecuh, Crenshaw, Monroe and 2 more13 hr
Mar 31, 1:43 PM CDTSevere Thunderstorm WarningMOBWilcox47 min
Mar 31, 1:45 PM CDTSevere Thunderstorm WarningMOBChoctaw15 min
Mar 31, 2:04 PM CDTSpecial Weather StatementMOBWashington56 min
Mar 31, 2:14 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe, Wilcox61 min
Mar 31, 3:15 PM CDTSpecial Weather StatementMOBButler, Crenshaw60 min
Mar 31, 4:13 PM CDTSevere Thunderstorm WarningMOBCovington47 min
Mar 31, 4:30 PM CDTSpecial Weather StatementMOBBaldwin, Covington, Escambia, Mobile45 min
Mar 31, 4:40 PM CDTSevere Thunderstorm WarningMOBCovington44 min
Mar 31, 5:03 PM CDTSpecial Marine WarningMOB42 min
Mar 31, 6:20 PM CDTSpecial Marine WarningMOB26 min
Mar 31, 6:23 PM CDTSpecial Marine WarningMOB65 min
Mar 31, 6:49 PM CDTSpecial Marine WarningMOB62 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.