Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 41, NWS Mobile, AL

August 29, 2012George County, Greene County, Perry County, Mississippi

NWS Mobile, AL issued this tornado warning at Aug 29, 2012, 9:36 AM CDT for George County, Greene County, Perry County, Mississippi. It was in force for 39 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
Aug 29, 2012, 9:36 AM CDT (14:36 UTC)
Expired
Aug 29, 2012, 10:15 AM CDT
In force
39 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties George County, MS, Greene County, MS, Perry County, MS

The radar

The Mobile radar (KMOB), 77 km from the middle of the area, began a volume at 14:39 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 watch it was issued in

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

IssuedProductOfficeLasted
Aug 28, 6:47 PM CDTTornado WatchSPC21 hr
Aug 29, 6:36 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.6 hours before the alert went out and 123 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, Slidell Radar S, LA at 12:00Z on 2012-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 625 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 2012-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 298 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
625 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
465 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
298 m²/s²
0-3 km storm-relative helicity
338 m²/s²
Significant tornado parameter
0.9
Supercell composite
8.7

Open this sounding in Storm Lab

The text

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

333 
WFUS54 KMOB 291436
TORMOB
MSC039-041-111-291515-
/O.NEW.KMOB.TO.W.0041.120829T1436Z-120829T1515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
936 AM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHWESTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 1015 AM CDT

* AT 935 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 4 MILES SOUTH OF LUCEDALE...OR 16 MILES NORTH
  OF WADE...MOVING NORTHWEST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MCLAIN...             RICHTON...            NEW AUGUSTA...
  BEAUMONT...           LUCEDALE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3137 8895 3088 8847 3075 8860 3105 8915
      3116 8915
TIME...MOT...LOC 1436Z 131DEG 35KT 3088 8862

$$
2 follow-up statements
275 
WWUS54 KMOB 291457
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
957 AM CDT WED AUG 29 2012

MSC039-291506-
/O.CAN.KMOB.TO.W.0041.000000T0000Z-120829T1515Z/
GEORGE MS-
957 AM CDT WED AUG 29 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTHWESTERN GEORGE
COUNTY...

AT 954 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN 
GEORGE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3131 8900 3137 8895 3103 8863 3100 8867
      3100 8883 3096 8884 3120 8911
TIME...MOT...LOC 1456Z 138DEG 39KT 3105 8878

$$

MSC041-111-291515-
/O.CON.KMOB.TO.W.0041.000000T0000Z-120829T1515Z/
PERRY MS-GREENE MS-
957 AM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR
SOUTHWESTERN GREENE AND PERRY COUNTIES...

AT 954 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 13 MILES NORTHWEST OF LUCEDALE...OR 6 MILES SOUTHEAST OF
MCLAIN...MOVING NORTHWEST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  MCLAIN...             RICHTON...            NEW AUGUSTA...
  BEAUMONT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3131 8900 3137 8895 3103 8863 3100 8867
      3100 8883 3096 8884 3120 8911
TIME...MOT...LOC 1456Z 138DEG 39KT 3105 8878

$$
880 
WWUS54 KMOB 291506
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1006 AM CDT WED AUG 29 2012

MSC041-291516-
/O.CAN.KMOB.TO.W.0041.000000T0000Z-120829T1515Z/
GREENE MS-
1006 AM CDT WED AUG 29 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN GREENE
COUNTY...

AT 1003 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHWESTERN
GREENE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3120 8911 3131 8900 3137 8895 3125 8884
      3100 8884 3100 8883 3096 8884
TIME...MOT...LOC 1506Z 138DEG 39KT 3113 8887

$$

MSC111-291515-
/O.CON.KMOB.TO.W.0041.000000T0000Z-120829T1515Z/
PERRY MS-
1006 AM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR PERRY
COUNTY...

AT 1003 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
 WAS LOCATED 17 MILES WEST OF LEAKESVILLE...OR NEAR MCLAIN...MOVING
NORTHWEST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  RICHTON...            NEW AUGUSTA...        BEAUMONT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT WEDNESDAY
AFTERNOON FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3120 8911 3131 8900 3137 8895 3125 8884
      3100 8884 3100 8883 3096 8884
TIME...MOT...LOC 1506Z 138DEG 39KT 3113 8887

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 11:46 PM CDTAreal Flood AdvisoryMOBGeorge119 min
Aug 29, 5:33 AM CDTTornado WarningMOBGeorge, Stone27 min
Aug 29, 7:51 AM CDTTornado WarningMOBGeorge, Perry, Stone39 min
Aug 29, 8:46 AM CDTFlash Flood WarningMOBGeorge, Greene, Perry, Stone6 hr
Aug 29, 10:18 AM CDTWind AdvisoryMOBGeorge, Greene, Perry, Stone14 hr
Aug 29, 12:35 PM CDTTornado WarningMOBGreene, Perry, Wayne40 min
Aug 29, 1:17 PM CDTTornado WarningMOBGreene, Perry, Wayne36 min
Aug 29, 1:27 PM CDTTornado WarningMOBStone48 min
Aug 29, 2:52 PM CDTFlash Flood WarningMOBGeorge, Greene, Perry, Stone6 hr

Nearby

Tornado Warnings in Mississippi, 2012Every tornado warning in 2012Tornadoes 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.