Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 24, NWS Mobile, AL

February 24, 20125 counties in Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 24, 2012, 9:52 AM CST for 5 counties in Alabama. It was in force for 38 min. 1 report 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
Feb 24, 2012, 9:52 AM CST (15:52 UTC)
Expired
Feb 24, 2012, 10:30 AM CST
In force
38 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Butler County, AL, Conecuh County, AL, Crenshaw County, AL, Monroe County, AL, Wilcox County, AL

What was reported inside it

TimeReportWhereRemark
Feb 24, 10:05 AM CSTTSTM WND DMGGreenville, ALNUMEROUS TREES REPORTED DOWN ALONG I-65 NEAR GREENVILLE

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
Feb 24, 7:48 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 3.9 hours before the alert went out and 156 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 2012-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1167 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 2012-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939587897117136Sfc1 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
1167 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

740 
WUUS54 KMOB 241552
SVRMOB
ALC013-035-041-099-131-241630-
/O.NEW.KMOB.SV.W.0024.120224T1552Z-120224T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
952 AM CST FRI FEB 24 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BUTLER COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHEASTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTHEASTERN WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1030 AM CST

* AT 947 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 22
  MILES WEST OF GREENVILLE...OR 11 MILES NORTH OF LYEFFION...AND
  MOVING EAST AT 75 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUTLEDGE...           PETREY...             LUVERNE...
  GLENWOOD...           I65 AND CR 7...       I65 AND AL 185...
  I65 AND AL 106...     I65 AND AL 10...      GREENVILLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 106 AND 139.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST FRIDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3166 8614 3163 8618 3162 8615 3157 8616
      3155 8713 3185 8713 3197 8687 3197 8641
      3205 8640 3206 8635 3205 8630 3197 8629
      3196 8618 3189 8617 3180 8620 3179 8615
      3178 8614
TIME...MOT...LOC 1552Z 254DEG 67KT 3176 8686

$$
1 follow-up statement
861 
WWUS54 KMOB 241609
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1009 AM CST FRI FEB 24 2012

ALC035-099-131-241618-
/O.CAN.KMOB.SV.W.0024.000000T0000Z-120224T1630Z/
CONECUH AL-MONROE AL-WILCOX AL-
1009 AM CST FRI FEB 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WILCOX...
NORTHEASTERN MONROE AND NORTH CENTRAL CONECUH COUNTIES IS
CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED EAST INTO BUTLER COUNTY AND 
CONTINUES MOVING EAST.  

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST FRIDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3166 8614 3163 8618 3162 8616 3166 8685
      3187 8686 3196 8683 3197 8641 3205 8640
      3206 8635 3205 8630 3197 8629 3196 8618
      3189 8617 3180 8620 3179 8615 3178 8614
TIME...MOT...LOC 1608Z 254DEG 64KT 3182 8657

$$

ALC013-041-241630-
/O.CON.KMOB.SV.W.0024.000000T0000Z-120224T1630Z/
BUTLER AL-CRENSHAW AL-
1009 AM CST FRI FEB 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 AM CST
FOR CRENSHAW AND NORTHERN BUTLER COUNTIES...

AT 1006 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR GREENVILLE...MOVING EAST AT 70 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GLASGOW...MASHVILLE...MIDWAY...DAISY...MOODYS CROSSROADS...CENTER
RIDGE...ROBINSON CROSSROADS...IVY CREEK...HONORAVILLE...CENTENARY...
DANIELSVILLE...CHEROKEE VILLAGE...PANOLA...RUTLEDGE...LUVERNE...
CLEARVIEW...FULLERS CROSSROADS...SAVILLE...VERNLEDGE...SARDIS...
PETREY...HIGHLAND HOME...MAGNOLIA SHORES...GARNERSVILLE...CARMEN...
LIVE OAK...PATSBURG...GLENWOOD...VIDETTE...SOCIAL TOWN...
BRADLEYTON...SHIRLEYS CROSSROADS...HELICON AND JOQUIN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST FRIDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3166 8614 3163 8618 3162 8616 3166 8685
      3187 8686 3196 8683 3197 8641 3205 8640
      3206 8635 3205 8630 3197 8629 3196 8618
      3189 8617 3180 8620 3179 8615 3178 8614
TIME...MOT...LOC 1608Z 254DEG 64KT 3182 8657

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 8:06 AM CSTSevere Thunderstorm WarningMOBWashington39 min
Feb 24, 8:51 AM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Washington39 min
Feb 24, 9:20 AM CSTTornado WarningMOBClarke, Conecuh, Monroe40 min
Feb 24, 9:30 AM CSTSevere Thunderstorm WarningMOBClarke, Wilcox30 min
Feb 24, 9:35 AM CSTTornado WarningMOBWilcox25 min
Feb 24, 10:13 AM CSTTornado WarningMOBButler, Crenshaw32 min
Feb 24, 10:35 AM CSTSpecial Marine WarningMOB40 min
Feb 24, 11:15 AM CSTSpecial Marine WarningMOB60 min
Feb 24, 11:26 AM CSTSpecial Marine WarningMOB19 min
Feb 24, 12:17 PM CSTSpecial Marine WarningMOB58 min
Feb 24, 2:08 PM CSTRed Flag WarningMOBButler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more26 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2012Every severe thunderstorm warning in 2012

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.