Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 47, NWS Mobile, AL

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

NWS Mobile, AL issued this tornado warning at Aug 29, 2012, 10:25 PM CDT for Greene County, Perry County, Wayne County, Mississippi. It was in force for 26 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, 10:25 PM CDT (03:25 UTC)
Expired
Aug 29, 2012, 10:51 PM CDT
In force
26 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 106 km from the middle of the area, began a volume at 03:29 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

Jackson, MS (KJAN), launched 00:00Z, 3.4 hours before the alert went out and 149 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 00:00Z on 2012-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 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 00:00Z on 2012-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 316 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
325 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
316 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

145 
WFUS54 KMOB 300325
TORMOB
MSC041-111-153-300415-
/O.NEW.KMOB.TO.W.0047.120830T0325Z-120830T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1025 PM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHEASTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHWESTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 1115 PM CDT

* AT 1015 PM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND
  LIKELY PRODUCING A TORNADO WAS LOCATED 13 MILES EAST OF RICHTON...
  OR 15 MILES NORTHEAST OF MCLAIN...MOVING NORTHWEST AT 50 MPH.

THIS STORM WILL SOON PASS VERY NEAR THE WAYNE...GREENE AND PERRY 
COUNTY MUTUAL BORDERS. 

* LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHWESTERN GREENE COUNTY
  RURAL NORTHEASTERN PERRY COUNTY
  RURAL SOUTHWESTERN WAYNE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3144 8895 3170 8895 3166 8875 3134 8867
      3130 8877 3143 8896
TIME...MOT...LOC 0324Z 156DEG 44KT 3141 8877

$$
2 follow-up statements
438 
WWUS54 KMOB 300337
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1037 PM CDT WED AUG 29 2012

MSC041-111-300347-
/O.CAN.KMOB.TO.W.0047.000000T0000Z-120830T0415Z/
PERRY MS-GREENE MS-
1037 PM CDT WED AUG 29 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTHWESTERN GREENE AND
NORTHEASTERN PERRY COUNTIES...

AT 1029 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN
GREENE AND NORTHEASTERN PERRY COUNTIES HAS MOVED OUT OF THE COUNTIES 
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 3149 8894 3170 8895 3167 8880 3145 8876
      3143 8881 3144 8886
TIME...MOT...LOC 0337Z 144DEG 35KT 3150 8887

$$

MSC153-300415-
/O.CON.KMOB.TO.W.0047.000000T0000Z-120830T0415Z/
WAYNE MS-
1037 PM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT FOR
SOUTHWESTERN WAYNE COUNTY...

AT 1029 PM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND
LIKELY PRODUCING A TORNADO  WAS LOCATED 10 MILES NORTHEAST OF
RICHTON...OR 12 MILES SOUTHWEST OF CLARA...MOVING NORTHWEST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  RURAL SOUTHWESTERN WAYNE COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3149 8894 3170 8895 3167 8880 3145 8876
      3143 8881 3144 8886
TIME...MOT...LOC 0337Z 144DEG 35KT 3150 8887

$$
036 
WWUS54 KMOB 300351
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1051 PM CDT WED AUG 29 2012

MSC153-300401-
/O.CAN.KMOB.TO.W.0047.000000T0000Z-120830T0415Z/
WAYNE MS-
1051 PM CDT WED AUG 29 2012

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

AT 1047 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHWESTERN
WAYNE 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 3149 8894 3170 8895 3167 8880 3145 8876
      3143 8881 3144 8886
TIME...MOT...LOC 0351Z 180DEG 0KT 3144 8882

$$

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, 9:42 PM CDTTornado WarningMOBGeorge, Greene, Perry48 min
Aug 29, 10:20 PM CDTRiver Flood WarningMOBGeorge, Greene, Perry9 days
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.