Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 208, NWS Mobile, AL

December 10, 2012Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Dec 10, 2012, 9:00 AM CST for Wayne County, Mississippi. It was in force for 60 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, 9:00 AM CST (15:00 UTC)
Expired
Dec 10, 2012, 10:00 AM CST
In force
60 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Wayne County, MS

The radar

The Mobile radar (KMOB), 128 km from the middle of the area, began a volume at 15:02 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.

IssuedProductOfficeLasted
Dec 10, 8:51 AM CSTTornado WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.0 hours before the alert went out and 141 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, Jackson, MS at 12:00Z on 2012-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 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, Jackson, MS at 12:00Z on 2012-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
64 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
443 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

992 
WUUS54 KMOB 101500
SVRMOB
MSC153-101600-
/O.NEW.KMOB.SV.W.0208.121210T1500Z-121210T1600Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 1000 AM CST

* AT 857 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WERE LOCATED FROM 7 MILES NORTHWEST OF  
  QUITMAN TO 12 MILES NORTH OF RICHTON...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IS IN EFFECT FOR THE WARNED AREA. IF A 
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY.

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

&&

LAT...LON 3183 8894 3185 8866 3187 8858 3187 8848
      3147 8850 3145 8894 3182 8895
TIME...MOT...LOC 1459Z 269DEG 30KT 3209 8880 3152 8899

$$
2 follow-up statements
199 
WWUS54 KMOB 101530
SVSMOB

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

MSC153-101600-
/O.CON.KMOB.SV.W.0208.000000T0000Z-121210T1600Z/
WAYNE MS-
930 AM CST MON DEC 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CST
FOR WAYNE COUNTY...

AT 925 AM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
DAMAGING WINDS OVER 60 MPH WERE LOCATED FROM 10 MILES WEST OF BUTLER 
TO 14 MILES NORTH OF RICHTON...MOVING EAST AT 30 MPH.

ANOTHER LINE OF SEVERE THUNDERSTORMS WAS LOCATED TO THE SOUTHWEST 
AND WILL BE MOVING INTO THE SOUTHWEST PART OF THE COUNTY DURING THE 
NEXT HOUR. FUTURE WARNINGS WITH THIS NEW LINE OF STORMS TO THE 
SOUTHWEST WILL BE LIKELY.  

LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3183 8894 3185 8866 3187 8858 3187 8848
      3147 8850 3145 8894 3182 8895
TIME...MOT...LOC 1527Z 264DEG 25KT 3212 8837 3154 8884

$$
540 
WWUS54 KMOB 101547
SVSMOB

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

MSC153-101600-
/O.CON.KMOB.SV.W.0208.000000T0000Z-121210T1600Z/
WAYNE MS-
947 AM CST MON DEC 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CST
FOR WAYNE COUNTY...

AT 943 AM CST...A NEW LINE OF SEVERE THUNDERSTORMS CAPABLE OF 
PRODUCING DAMAGING WINDS OVER 60 MPH WAS LOCATED FROM 12 MILES WEST 
OF WAYNESBORO TO 6 MILES SOUTHWEST OF RICHTON...MOVING NORTHEAST AT 
35 MPH.

LOCATIONS IMPACTED INCLUDE...
  WAYNESBORO...         CLARA...              BUCKATUNNA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3179 8891 3187 8850 3150 8851 3147 8857
      3145 8894 3167 8895
TIME...MOT...LOC 1546Z 222DEG 55KT 3168 8882 3132 8897

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 9:23 AM CSTSevere Thunderstorm WarningMOBPerry52 min
Dec 10, 10:02 AM CSTSevere Thunderstorm WarningMOBGreene, Perry, Wayne58 min
Dec 10, 10:26 AM CSTSevere Thunderstorm WarningMOBGreene, Perry, Stone64 min
Dec 10, 10:36 AM CSTTornado WarningMOBWayne40 min
Dec 10, 11:32 AM CSTSevere Thunderstorm WarningMOBGeorge, Greene42 min

Nearby

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