Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 76, NWS Mobile, AL

May 30, 2012George County, Greene County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at May 30, 2012, 4:16 PM CDT for George County, Greene County, Mississippi; Mobile County, Alabama. It was in force for 59 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
May 30, 2012, 4:16 PM CDT (21:16 UTC)
Expired
May 30, 2012, 5:15 PM CDT
In force
59 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Mobile County, AL, George County, MS, Greene County, MS

The radar

The Mobile radar (KMOB), 46 km from the middle of the area, began a volume at 21:18 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.3 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, Slidell Radar S, LA at 12:00Z on 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1642 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, Slidell Radar S, LA at 12:00Z on 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939Sfc1 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
1642 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

647 
WUUS54 KMOB 302116
SVRMOB
ALC097-MSC039-041-302215-
/O.NEW.KMOB.SV.W.0076.120530T2116Z-120530T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
416 PM CDT WED MAY 30 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHWESTERN MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 515 PM CDT

* AT 413 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
  SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 9 MILES
  NORTHEAST OF LUCEDALE...OR 13 MILES WEST OF GULFCREST...AND MOVING
  NORTHWEST AT 5 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHWESTERN MOBILE COUNTY
  RURAL NORTHEASTERN GEORGE COUNTY
  RURAL SOUTHEASTERN GREENE COUNTY

LAT...LON 3115 8843 3111 8843 3111 8834 3093 8832
      3085 8851 3107 8869
TIME...MOT...LOC 2117Z 155DEG 2KT 3097 8846

$$
2 follow-up statements
389 
WWUS54 KMOB 302135
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
435 PM CDT WED MAY 30 2012

ALC097-MSC039-041-302215-
/O.CON.KMOB.SV.W.0076.000000T0000Z-120530T2215Z/
GREENE MS-GEORGE MS-MOBILE AL-
435 PM CDT WED MAY 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR NORTHWESTERN MOBILE...NORTHEASTERN GEORGE AND SOUTHEASTERN GREENE
COUNTIES...

AT 432 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 9 MILES
NORTHEAST OF LUCEDALE...OR 13 MILES WEST OF GULFCREST...MOVING NORTH
AT 5 MPH.

LOCATIONS IMPACTED INCLUDE...
  RURAL NORTHWESTERN MOBILE COUNTY
  RURAL NORTHEASTERN GEORGE COUNTY
  RURAL SOUTHEASTERN GREENE COUNTY

LAT...LON 3115 8843 3111 8843 3111 8834 3093 8832
      3085 8851 3107 8869
TIME...MOT...LOC 2135Z 176DEG 4KT 3099 8846

$$
286 
WWUS54 KMOB 302209
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
509 PM CDT WED MAY 30 2012

ALC097-MSC039-041-302219-
/O.EXP.KMOB.SV.W.0076.000000T0000Z-120530T2215Z/
GREENE MS-GEORGE MS-MOBILE AL-
509 PM CDT WED MAY 30 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
NORTHWESTERN MOBILE...NORTHEASTERN GEORGE AND SOUTHEASTERN GREENE
COUNTIES...

AT 504 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTHWESTERN
MOBILE...NORTHEASTERN GEORGE AND SOUTHEASTERN GREENE COUNTIES HAS
WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE THUNDERSTORM
WARNING WILL BE ALLOWED TO EXPIRE AT 515 PM CDT.

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

LAT...LON 3115 8843 3111 8843 3111 8834 3093 8832
      3085 8851 3107 8869
TIME...MOT...LOC 2209Z 176DEG 4KT 3103 8846

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 5:54 PM CDTSevere Thunderstorm WarningMOBGreene32 min
May 29, 9:32 PM CDTSpecial Marine WarningMOB88 min
May 30, 2:23 AM CDTSevere Thunderstorm WarningMOBCovington37 min
May 30, 2:12 PM CDTSpecial Marine WarningMOB93 min
May 30, 2:54 PM CDTSevere Thunderstorm WarningMOBMobile66 min
May 30, 3:00 PM CDTSevere Thunderstorm WarningMOBBaldwin60 min
May 30, 3:19 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile56 min
May 30, 4:03 PM CDTSevere Thunderstorm WarningMOBMobile57 min
May 30, 4:12 PM CDTSevere Thunderstorm WarningMOBClarke37 min
May 30, 4:21 PM CDTSevere Thunderstorm WarningMOBMobile54 min
May 30, 5:06 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe54 min
May 30, 5:14 PM CDTSevere Thunderstorm WarningMOBChoctaw24 min
May 30, 5:38 PM CDTSevere Thunderstorm WarningMOBClarke67 min
May 30, 5:52 PM CDTSevere Thunderstorm WarningMOBMonroe29 min
May 30, 6:20 PM CDTSevere Thunderstorm WarningMOBCovington, Escambia32 min
May 30, 6:47 PM CDTSevere Thunderstorm WarningMOBChoctaw46 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2012Severe Thunderstorm Warnings in Alabama, 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.