Alert archive / Mississippi / Tornado Warnings in 2012

Tornado Warning 60, NWS Mobile, AL

August 30, 2012Greene County, Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Aug 30, 2012, 8:13 AM CDT for Greene County, Wayne County, Mississippi; Washington County, Alabama. It was in force for 32 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 30, 2012, 8:13 AM CDT (13:13 UTC)
Expired
Aug 30, 2012, 8:45 AM CDT
In force
32 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Washington County, AL, Greene County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 66 km from the middle of the area, began a volume at 13:16 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 30, 7:13 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.2 hours before the alert went out and 162 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 2012-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
332 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

379 
WFUS54 KMOB 301313
TORMOB
ALC129-MSC041-153-301345-
/O.NEW.KMOB.TO.W.0060.120830T1313Z-120830T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
813 AM CDT THU AUG 30 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHWESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 845 AM CDT

* AT 811 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 10 MILES NORTHEAST OF LUCEDALE...OR 13 MILES
  WEST OF GULFCREST...MOVING NORTH AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STATE LINE...         LEAKESVILLE...        FRUITDALE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3150 8841 3112 8836 3111 8843 3100 8843
      3100 8856 3147 8866
TIME...MOT...LOC 1313Z 172DEG 50KT 3105 8846

$$
1 follow-up statement
493 
WWUS54 KMOB 301339
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
839 AM CDT THU AUG 30 2012

ALC129-MSC041-153-301345-
/O.CON.KMOB.TO.W.0060.000000T0000Z-120830T1345Z/
WASHINGTON AL-WAYNE MS-GREENE MS-
839 AM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR EASTERN
GREENE...SOUTHEASTERN WAYNE AND SOUTHWESTERN WASHINGTON COUNTIES...

AT 836 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 10 MILES NORTHEAST OF LEAKESVILLE...OR 6 MILES SOUTHWEST
OF FRUITDALE...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  STATE LINE...         LEAKESVILLE...        FRUITDALE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3150 8841 3112 8836 3111 8843 3100 8843
      3100 8856 3147 8866
TIME...MOT...LOC 1339Z 177DEG 39KT 3132 8846

$$

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, 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, 8:45 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
Aug 29, 7:27 PM CDTTornado WarningMOBMonroe, Wilcox30 min
Aug 29, 7:29 PM CDTSmall Craft AdvisoryMOB33 hr
Aug 29, 7:45 PM CDTCoastal Flood WarningMOB21 hr
Aug 30, 12:22 AM CDTFlash Flood WarningMOBMobile, Washington6 hr
Aug 30, 2:46 AM CDTTornado WarningMOBCovington33 min
Aug 30, 3:53 AM CDTTornado WarningMOBCovington, Escambia37 min
Aug 30, 4:09 AM CDTTornado WarningMOBButler, Crenshaw16 min
Aug 30, 4:32 AM CDTTornado WarningMOBCovington28 min
Aug 30, 6:43 AM CDTTornado WarningMOBChoctaw, Washington37 min
Aug 30, 9:01 AM CDTTornado WarningMOBMobile, Washington44 min
Aug 30, 10:16 AM CDTTornado WarningMOBChoctaw, Washington44 min
Aug 30, 10:56 AM CDTTornado WarningMOBChoctaw49 min
Aug 30, 11:32 AM CDTSevere Thunderstorm WarningMOBMobile43 min
Aug 30, 11:44 AM CDTFlash Flood WarningMOBMobile, Washington6 hr
Aug 30, 11:56 AM CDTTornado WarningMOBChoctaw33 min
Aug 30, 4:29 PM CDTHigh Surf AdvisoryMOB20 hr

Nearby

Tornado Warnings in Mississippi, 2012Tornado Warnings in Alabama, 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.