Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 46, NWS Mobile, AL

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

NWS Mobile, AL issued this tornado warning at Aug 29, 2012, 9:42 PM CDT for George County, Greene County, Perry County, Mississippi. It was in force for 48 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, 9:42 PM CDT (02:42 UTC)
Expired
Aug 29, 2012, 10:30 PM CDT
In force
48 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), 67 km from the middle of the area, began a volume at 02:42 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 29, 3:53 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.7 hours before the alert went out and 145 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 00:00Z on 2012-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 408 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 00:00Z on 2012-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 299 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
408 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
464 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
299 m²/s²
0-3 km storm-relative helicity
301 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

098 
WFUS54 KMOB 300242
TORMOB
MSC039-041-111-300330-
/O.NEW.KMOB.TO.W.0046.120830T0242Z-120830T0330Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  EAST CENTRAL PERRY COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 1030 PM CDT

* AT 937 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 8 MILES SOUTH OF LEAKESVILLE...OR 15 MILES EAST
  OF MCLAIN...MOVING NORTH AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MCLAIN...             LEAKESVILLE...        LUCEDALE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING THEN IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3143 8879 3139 8860 3125 8851 3100 8842
      3084 8842 3086 8857 3121 8894
TIME...MOT...LOC 0242Z 164DEG 45KT 3110 8861

$$
3 follow-up statements
489 
WWUS54 KMOB 300259
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
959 PM CDT WED AUG 29 2012

MSC039-300307-
/O.CAN.KMOB.TO.W.0046.000000T0000Z-120830T0330Z/
GEORGE MS-
959 PM CDT WED AUG 29 2012

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

AT 951 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHEASTERN 
GEORGE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3108 8845 3102 8853 3102 8864 3121 8894
      3143 8879 3139 8860 3125 8851
TIME...MOT...LOC 0257Z 170DEG 18KT 3108 8857

$$

MSC041-111-300330-
/O.CON.KMOB.TO.W.0046.000000T0000Z-120830T0330Z/
PERRY MS-GREENE MS-
959 PM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR GREENE
AND EAST CENTRAL PERRY COUNTIES...

AT 951 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 8 MILES SOUTH OF LEAKESVILLE...OR 16 MILES EAST OF 
MCLAIN...MOVING NORTH AT 50 MPH. ANOTHER POSSIBLE TORNADO PRODUCING 
STORM WILL MOVE FROM JUST WEST OF LEAKESVILLE TO THE AVERA AREA IN 
THE NEXT HALF HOUR.

LOCATIONS IMPACTED INCLUDE...
  LEAKESVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING THEN IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3108 8845 3102 8853 3102 8864 3121 8894
      3143 8879 3139 8860 3125 8851
TIME...MOT...LOC 0257Z 170DEG 18KT 3108 8857

$$
189 
WWUS54 KMOB 300313
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1013 PM CDT WED AUG 29 2012

MSC041-111-300330-
/O.CON.KMOB.TO.W.0046.000000T0000Z-120830T0330Z/
PERRY MS-GREENE MS-
1013 PM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR WESTERN
GREENE AND EAST CENTRAL PERRY COUNTIES...

AT 1006 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES NORTHWEST OF LEAKESVILLE...OR 12 MILES NORTHEAST 
OF MCLAIN...MOVING NORTHWEST AT 45 MPH. THIS IS NOW THE 
PREDOMINANTLY STRONGEST ROTATING STORM AT THIS TIME.

LOCATIONS IMPACTED INCLUDE...
  RURAL WESTERN GREENE COUNTY
  RURAL EAST CENTRAL PERRY COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING THEN IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3115 8856 3109 8860 3107 8865 3124 8889
      3143 8879 3140 8863 3125 8856
TIME...MOT...LOC 0312Z 156DEG 40KT 3127 8870

$$
192 
WWUS54 KMOB 300321
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1021 PM CDT WED AUG 29 2012

MSC111-300330-
/O.CAN.KMOB.TO.W.0046.000000T0000Z-120830T0330Z/
PERRY MS-
1021 PM CDT WED AUG 29 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR EAST CENTRAL PERRY
COUNTY...

AT 1015 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR EAST CENTRAL
PERRY COUNTY HAS MOVED OUT OF THE COUNTY THUS THE TORNADO WARNING 
HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3125 8856 3120 8866 3122 8875 3128 8883
      3143 8879 3140 8863
TIME...MOT...LOC 0320Z 154DEG 40KT 3136 8875

$$

MSC041-300330-
/O.CON.KMOB.TO.W.0046.000000T0000Z-120830T0330Z/
GREENE MS-
1021 PM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHWESTERN GREENE COUNTY...

AT 1015 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
 WAS LOCATED 13 MILES EAST OF RICHTON...OR 15 MILES NORTHEAST OF
MCLAIN...MOVING NORTHWEST AT 45 MPH.

THE ROTATION HAS SIGNIFICANTLY STRENGTHENED IN THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHWESTERN GREENE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING THEN IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3125 8856 3120 8866 3122 8875 3128 8883
      3143 8879 3140 8863
TIME...MOT...LOC 0320Z 154DEG 40KT 3136 8875

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:36 PM CDTFlash Flood WarningMOBGeorge, Greene, Perry, Stone6 hr
Aug 29, 10:20 PM CDTRiver Flood WarningMOBGeorge, Greene, Perry9 days
Aug 29, 10:25 PM CDTTornado WarningMOBGreene, Perry, Wayne26 min
Aug 29, 11:20 PM CDTFlash Flood WarningMOBGreene, Perry, Wayne6 hr
Aug 30, 12:52 AM CDTWind AdvisoryMOBGeorge, Greene, Perry, Stone, Wayne16 hr
Aug 30, 2:13 AM CDTRiver Flood WarningMOBPerry22 hr
Aug 30, 2:28 AM CDTAreal Flood WarningMOBGeorge, Greene, Perry, Stone12 hr
Aug 30, 4:31 AM CDTTornado WarningMOBGreene, Wayne29 min
Aug 30, 4:37 AM CDTRiver Flood WarningMOBGeorge, Greene, Wayne9 days
Aug 30, 5:22 AM CDTTornado WarningMOBWayne23 min
Aug 30, 5:48 AM CDTTornado WarningMOBGreene, Wayne27 min
Aug 30, 6:28 AM CDTTornado WarningMOBWayne30 min
Aug 30, 7:07 AM CDTFlash Flood Warning EmergencyMOBGeorge6 hr
Aug 30, 7:18 AM CDTFlash Flood WarningMOBWayne6 hr
Aug 30, 7:23 AM CDTTornado WarningMOBWayne22 min
Aug 30, 7:41 AM CDTTornado WarningMOBGeorge33 min
Aug 30, 8:10 AM CDTTornado WarningMOBWayne35 min
Aug 30, 8:13 AM CDTTornado WarningMOBGreene, Wayne32 min
Aug 30, 8:45 AM CDTTornado WarningMOBGreene, Wayne45 min
Aug 30, 9:00 AM CDTFlash Flood Warning EmergencyMOBGreene6 hr
Aug 30, 10:17 AM CDTRiver Flood WarningMOBGeorge, Greene, Jackson9 days
Aug 30, 1:18 PM CDTAreal Flood WarningMOBGeorge, Greene, Perry, Stone, Wayne20 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.