Alert archive / Mississippi / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 129, NWS Mobile, AL

July 28, 2014Mobile County, Alabama; George County, Greene County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jul 28, 2014, 6:37 PM CDT for Mobile County, Alabama; George County, Greene County, Mississippi. It was in force for 53 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
Jul 28, 2014, 6:37 PM CDT (23:37 UTC)
Expired
Jul 28, 2014, 7:30 PM CDT
In force
53 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.6 hours before the alert went out and 139 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 2014-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1423 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 2014-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
1423 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
868 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-7 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.

834 
WUUS54 KMOB 282337
SVRMOB
ALC097-MSC039-041-290030-
/O.NEW.KMOB.SV.W.0129.140728T2337Z-140729T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
637 PM CDT MON JUL 28 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  WEST CENTRAL MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 730 PM CDT

* AT 637 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
  SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 11 MILES
  NORTHEAST OF LUCEDALE...OR 11 MILES WEST OF GULFCREST...AND MOVING
  SOUTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SEMMES...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS OFTEN PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING. PLEASE TAKE COVER UNTIL THE STORM PASSES.

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

&&

LAT...LON 3073 8842 3073 8844 3074 8844 3106 8854
      3111 8838 3072 8820 3066 8841
TIME...MOT...LOC 2337Z 342DEG 19KT 3100 8842

$$
1 follow-up statement
163 
WWUS54 KMOB 290008
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
708 PM CDT MON JUL 28 2014

MSC041-290018-
/O.CAN.KMOB.SV.W.0129.000000T0000Z-140729T0030Z/
GREENE MS-
708 PM CDT MON JUL 28 2014

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR
SOUTHEASTERN GREENE COUNTY...

AT 708 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHEASTERN 
GREENE COUNTY HAS MOVED OUT OF THE COUNTY. THUS...THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

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

LAT...LON 3073 8842 3073 8844 3074 8844 3094 8846
      3099 8834 3072 8820 3066 8841
TIME...MOT...LOC 0008Z 342DEG 19KT 3090 8838

$$

ALC097-MSC039-290030-
/O.CON.KMOB.SV.W.0129.000000T0000Z-140729T0030Z/
GEORGE MS-MOBILE AL-
708 PM CDT MON JUL 28 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WEST CENTRAL MOBILE AND SOUTHEASTERN GEORGE COUNTIES...

AT 708 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 12 MILES EAST OF
LUCEDALE...OR 11 MILES SOUTHWEST OF GULFCREST...MOVING SOUTH AT 20
MPH.

LOCATIONS IMPACTED INCLUDE...
  SEMMES...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3073 8842 3073 8844 3074 8844 3094 8846
      3099 8834 3072 8820 3066 8841
TIME...MOT...LOC 0008Z 342DEG 19KT 3090 8838

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 4:13 AM CDTRip Current StatementMOB25 hr
Jul 28, 9:31 AM CDTSpecial Marine WarningMOB89 min
Jul 28, 3:33 PM CDTSevere Thunderstorm WarningMOBClarke27 min
Jul 28, 3:38 PM CDTSevere Thunderstorm WarningMOBConecuh, Covington24 min
Jul 28, 6:02 PM CDTSpecial Marine WarningMOB58 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2014Severe Thunderstorm Warnings in Alabama, 2014Every severe thunderstorm warning in 2014

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.