Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 232, NWS Mobile, AL

December 25, 2012George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Dec 25, 2012, 7:19 PM CST for George County, Mississippi; Mobile County, Alabama. It was in force for 41 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Dec 25, 2012, 7:19 PM CST (01:19 UTC)
Expired
Dec 25, 2012, 8:00 PM CST
In force
41 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 3 km from the middle of the area, began a volume at 01:22 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.

What was reported inside it

TimeReportWhereRemark
Dec 25, 7:20 PM CSTTSTM WND DMG6 E Agricola, MSTWO HOMES DAMAGED...ONE WITH SIGNIFICANT ROOF DAMAGE. THE OTHER EXPERIENCED MINOR DAMAGE. TREES ALSO DOWN.
Dec 25, 7:24 PM CSTTORNADO 1Wilmer, ALA FEW HOMES AND TRAILERS ARE DAMAGED IN THE NACHEZ HWY AREA OF WILMER.
Dec 25, 7:24 PM CSTTORNADOWilmer, ALA FEW HOMES AND TRAILERS ARE DAMAGED IN THE NACHEZ HWY AREA OF WILMER. EXTENT OF DAMAGE UNKNOWN AT THIS TIME.
Dec 25, 7:25 PM CSTTORNADO3 Se Wilmer, ALLARGE TREES BLOCKING ROAD.
Dec 25, 7:40 PM CSTTSTM WND DMGSemmes, ALTREES DOWN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Dec 25, 12:58 PM CSTTornado Watch PDSSPC9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.3 hours before the alert went out and 150 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 2012-12-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1619 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-12-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 486 square meters per square second.1939587897Sfc1 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
1619 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
486 m²/s²
0-3 km storm-relative helicity
466 m²/s²
Significant tornado parameter
5.0
Supercell composite
18.1

Open this sounding in Storm Lab

The text

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

919 
WUUS54 KMOB 260119
SVRMOB
ALC097-MSC039-260200-
/O.NEW.KMOB.SV.W.0232.121226T0119Z-121226T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
719 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 800 PM CST

* AT 717 PM CST...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  QUARTER SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG
  A LINE EXTENDING FROM 11 MILES SOUTHEAST OF LUCEDALE TO 12 MILES
  WEST OF REGIONAL AIRPORT IN WEST MOBILE TO 6 MILES NORTH OF
  ESCATAWPA...AND MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  REGIONAL AIRPORT IN WEST MOBILE...          MIDTOWN MOBILE...
  DOWNTOWN MOBILE...    TILLMANS CORNER...    THEODORE...
  SEMMES...             SARALAND...           PRICHARD...
  I65 AND US 45...

THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 7 AND 28.
THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 1 AND 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 1000 PM CST TUESDAY EVENING FOR SOUTH
CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3050 8841 3073 8842 3074 8860 3075 8860
      3083 8859 3082 8795 3081 8798 3078 8802
      3075 8803 3070 8800 3063 8805 3059 8805
      3057 8808 3053 8807 3051 8809
TIME...MOT...LOC 0119Z 270DEG 53KT 3084 8839 3070 8841
          3057 8852

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 25, 6:29 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone46 min
Dec 25, 7:00 PM CSTSevere Thunderstorm WarningMOBGeorge, Greene60 min
Dec 26, 5:43 AM CSTWind AdvisoryMOBGeorge, Greene, Perry, Stone, Wayne9 hr
Dec 25, 6:08 PM CSTTornado WarningMOBClarke, Monroe, Wilcox67 min
Dec 25, 6:20 PM CSTSpecial Marine WarningMOB85 min
Dec 25, 6:20 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox55 min
Dec 25, 6:38 PM CSTCoastal Flood AdvisoryMOB5 hr
Dec 25, 6:59 PM CSTTornado WarningMOBClarke, Monroe45 min
Dec 25, 7:00 PM CSTTornado WarningMOBWilcox30 min
Dec 25, 7:21 PM CSTTornado WarningMOBMobile39 min
Dec 25, 7:34 PM CSTTornado WarningMOBWilcox26 min
Dec 25, 7:37 PM CSTSevere Thunderstorm WarningMOBClarke, Conecuh, Monroe, Wilcox53 min
Dec 25, 7:59 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Conecuh, Escambia, Mobile, Monroe46 min
Dec 25, 8:03 PM CSTSpecial Marine WarningMOB87 min
Dec 25, 8:11 PM CSTTornado WarningMOBBaldwin, Escambia49 min
Dec 25, 8:36 PM CSTTornado WarningMOBButler, Conecuh39 min
Dec 25, 8:44 PM CSTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe46 min
Dec 25, 8:58 PM CSTSevere Thunderstorm WarningMOBBaldwin47 min
Dec 25, 9:08 PM CSTSpecial Marine WarningMOB82 min
Dec 25, 9:09 PM CSTTornado WarningMOBButler, Crenshaw51 min
Dec 25, 9:23 PM CSTSpecial Marine WarningMOB97 min
Dec 25, 9:29 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia46 min
Dec 25, 9:35 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw70 min
Dec 25, 9:45 PM CSTSevere Thunderstorm WarningMOBBaldwin, Covington, Escambia45 min
Dec 25, 10:15 PM CSTSevere Thunderstorm WarningMOBCovington, Crenshaw60 min
Dec 25, 10:29 PM CSTSevere Thunderstorm WarningMOBCovington, Escambia46 min
Dec 25, 10:33 PM CSTSpecial Marine WarningMOB117 min
Dec 25, 10:40 PM CSTTornado WarningMOBCovington35 min
Dec 25, 11:14 PM CSTSevere Thunderstorm WarningMOBCovington26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.