Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 214, NWS Mobile, AL

December 10, 2012George County, Greene County, Mississippi; Mobile County, Washington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Dec 10, 2012, 11:32 AM CST for George County, Greene County, Mississippi; Mobile County, Washington County, Alabama. It was in force for 42 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: Dec 10, 2012, 11:32 AM CST (17:32 UTC)
Expired: Dec 10, 2012, 12:14 PM CST
In force: 42 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Mobile County, AL, Washington County, AL, George County, MS, Greene County, MS

The radar

The Mobile radar (KMOB), 67 km from the middle of the area, began a volume at 17:34 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
Dec 10, 8:51 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 hours before the alert went out and 189 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: 767 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 488 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 263 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.9

Open this sounding in Storm Lab

The text

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

449 
WUUS54 KMOB 101732
SVRMOB
ALC097-129-MSC039-041-101830-
/O.NEW.KMOB.SV.W.0214.121210T1732Z-121210T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1132 AM CST MON DEC 10 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  EASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
  SOUTHERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 1230 PM CST

* AT 1129 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF
  PRODUCING DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE
  EXTENDING FROM 9 MILES WEST OF CHATOM TO 9 MILES EAST OF
  LUCEDALE...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MOWA CHOCTAW RESERVATION...                 MOVICO...
  MOUNT VERNON...       GULFCREST...          CITRONELLE...
  CHUNCHULA...          CALVERT...            BUCKS...
  AXIS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3144 8847 3144 8845 3151 8845 3150 8793
      3132 8795 3131 8796 3127 8795 3126 8799
      3126 8797 3125 8795 3116 8796 3116 8798
      3115 8796 3092 8799 3092 8849
TIME...MOT...LOC 1732Z 270DEG 36KT 3143 8836 3096 8840

$$

3 follow-up statements

876 
WWUS54 KMOB 101751
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1151 AM CST MON DEC 10 2012

MSC039-041-101800-
/O.CAN.KMOB.SV.W.0214.000000T0000Z-121210T1830Z/
GREENE MS-GEORGE MS-
1151 AM CST MON DEC 10 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
NORTHEASTERN GEORGE AND EASTERN GREENE COUNTIES...

AT 1148 AM CST...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN
GEORGE AND EASTERN GREENE COUNTIES HAS MOVED OUT OF THE COUNTY...THUS 
THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST MONDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA.

LAT...LON 3095 8827 3148 8832 3149 8826 3151 8822
      3150 8793 3132 8795 3131 8796 3127 8795
      3126 8799 3126 8797 3125 8795 3116 8796
      3116 8798 3115 8796 3092 8799
TIME...MOT...LOC 1750Z 270DEG 36KT 3143 8815 3096 8819

$$

ALC097-129-101830-
/O.CON.KMOB.SV.W.0214.000000T0000Z-121210T1830Z/
WASHINGTON AL-MOBILE AL-
1151 AM CST MON DEC 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CST
FOR NORTHEASTERN MOBILE AND SOUTHEASTERN WASHINGTON COUNTIES...

AT 1148 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 5
MILES SOUTHEAST OF CHATOM TO 9 MILES SOUTH OF CITRONELLE...MOVING
EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  MOWA CHOCTAW RESERVATION...                 MOVICO...
  MOUNT VERNON...       GULFCREST...          CITRONELLE...
  CALVERT...            BUCKS...              AXIS...
  WAGARVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST MONDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA.

&&

LAT...LON 3095 8827 3148 8832 3149 8826 3151 8822
      3150 8793 3132 8795 3131 8796 3127 8795
      3126 8799 3126 8797 3125 8795 3116 8796
      3116 8798 3115 8796 3092 8799
TIME...MOT...LOC 1750Z 270DEG 36KT 3143 8815 3096 8819

$$

590 
WWUS54 KMOB 101803
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1203 PM CST MON DEC 10 2012

ALC097-101812-
/O.CAN.KMOB.SV.W.0214.000000T0000Z-121210T1830Z/
MOBILE AL-
1203 PM CST MON DEC 10 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
NORTHEASTERN MOBILE COUNTY...

AT 1202 PM CST...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN
MOBILE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE SEVERE THUNDERSTORM 
WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST MONDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA.

LAT...LON 3149 8794 3132 8795 3131 8796 3130 8795
      3127 8795 3127 8797 3126 8799 3126 8797
      3124 8795 3116 8796 3120 8815 3136 8821
      3147 8818 3151 8814
TIME...MOT...LOC 1802Z 270DEG 36KT 3149 8796 3103 8800

$$

ALC129-101830-
/O.CON.KMOB.SV.W.0214.000000T0000Z-121210T1830Z/
WASHINGTON AL-
1203 PM CST MON DEC 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CST
FOR SOUTHEASTERN WASHINGTON COUNTY...

AT 1202 PM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 4
MILES WEST OF JACKSON TO 9 MILES NORTH OF CREOLA...MOVING EAST AT 40
MPH.

LOCATIONS IMPACTED INCLUDE...
  WAGARVILLE...         MCINTOSH...           MALCOLM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST MONDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA.

&&

LAT...LON 3149 8794 3132 8795 3131 8796 3130 8795
      3127 8795 3127 8797 3126 8799 3126 8797
      3124 8795 3116 8796 3120 8815 3136 8821
      3147 8818 3151 8814
TIME...MOT...LOC 1802Z 270DEG 36KT 3149 8796 3103 8800

$$

989 
WWUS54 KMOB 101814
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1214 PM CST MON DEC 10 2012

ALC129-101824-
/O.CAN.KMOB.SV.W.0214.000000T0000Z-121210T1830Z/
WASHINGTON AL-
1214 PM CST MON DEC 10 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
SOUTHEASTERN WASHINGTON COUNTY...

AT 1211 PM CST...THE STORM THAT PROMPTED THE WARNING FOR SOUTHEASTERN
WASHINGTON COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CST MONDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA.

LAT...LON 3149 8794 3132 8795 3131 8796 3130 8795
      3127 8795 3127 8797 3126 8799 3126 8797
      3124 8795 3116 8796 3120 8815 3136 8821
      3147 8818 3151 8814
TIME...MOT...LOC 1814Z 270DEG 36KT 3149 8782 3103 8786

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 9:00 AM CST	Severe Thunderstorm Warning	MOB	Wayne	60 min
Dec 10, 9:23 AM CST	Severe Thunderstorm Warning	MOB	Perry	52 min
Dec 10, 10:02 AM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	58 min
Dec 10, 10:26 AM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Stone	64 min
Dec 10, 10:36 AM CST	Tornado Warning	MOB	Wayne	40 min
Dec 10, 3:51 AM CST	Small Craft Advisory	MOB		29 hr
Dec 10, 9:43 AM CST	Special Marine Warning	MOB		2 hr
Dec 10, 9:53 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	52 min
Dec 10, 10:03 AM CST	Tornado Warning	MOB	Baldwin	42 min
Dec 10, 10:31 AM CST	Severe Thunderstorm Warning	MOB	Washington	49 min
Dec 10, 10:37 AM CST	Tornado Warning	MOB	Baldwin	38 min
Dec 10, 10:58 AM CST	Tornado Warning	MOB	Clarke	41 min
Dec 10, 11:36 AM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	54 min
Dec 10, 12:09 PM CST	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Monroe	47 min
Dec 10, 12:18 PM CST	Severe Thunderstorm Warning	MOB	Butler, Monroe, Wilcox	42 min
Dec 10, 12:30 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Conecuh, Monroe	28 min
Dec 10, 12:32 PM CST	Severe Thunderstorm Warning	MOB	Butler, Wilcox	29 min
Dec 10, 12:37 PM CST	Special Marine Warning	MOB		92 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2012 Severe Thunderstorm Warnings in Alabama, 2012 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.