Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 207, NWS Mobile, AL

November 5, 2012George County, Mississippi; Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Nov 5, 2012, 10:38 PM CST for George County, Mississippi; Baldwin County, Mobile County, Alabama. It was in force for 31 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
Nov 5, 2012, 10:38 PM CST (04:38 UTC)
Expired
Nov 5, 2012, 11:09 PM CST
In force
31 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 6 km from the middle of the area, began a volume at 04:40 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 00:00Z, 4.6 hours before the alert went out and 153 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 2012-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 356 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 00:00Z on 2012-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 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
356 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
629 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

480 
WUUS54 KMOB 060438
SVRMOB
ALC003-097-MSC039-060530-
/O.NEW.KMOB.SV.W.0207.121106T0438Z-121106T0530Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1038 PM CST MON NOV 5 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 1130 PM CST

* AT 1036 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
  SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 12 MILES
  SOUTHEAST OF LUCEDALE...OR 10 MILES NORTHEAST OF WADE...AND MOVING
  EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  REGIONAL AIRPORT IN WEST MOBILE...          MIDTOWN MOBILE...
  DOWNTOWN MOBILE...    SEMMES...             SATSUMA...
  SARALAND...           PRICHARD...           I65 AND US 45...
  I65 AND US 43...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 3 AND 21.

LAT...LON 3067 8842 3073 8842 3073 8857 3085 8858
      3091 8781 3067 8780 3067 8799 3067 8801
      3067 8802
TIME...MOT...LOC 0438Z 267DEG 36KT 3077 8847

$$
2 follow-up statements
321 
WWUS54 KMOB 060451
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1051 PM CST MON NOV 5 2012

MSC039-060501-
/O.CAN.KMOB.SV.W.0207.000000T0000Z-121106T0530Z/
GEORGE MS-
1051 PM CST MON NOV 5 2012

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

AT 1049 PM CST...THE STORM THAT PROMPTED THE WARNING FOR SOUTHEASTERN
GEORGE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3067 8842 3077 8841 3086 8841 3091 8781
      3067 8780
TIME...MOT...LOC 0451Z 267DEG 36KT 3078 8832

$$

ALC003-097-060530-
/O.CON.KMOB.SV.W.0207.000000T0000Z-121106T0530Z/
BALDWIN AL-MOBILE AL-
1051 PM CST MON NOV 5 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CST
FOR CENTRAL MOBILE AND WEST CENTRAL BALDWIN COUNTIES...

AT 1049 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED 9 MILES
NORTHWEST OF REGIONAL AIRPORT IN WEST MOBILE...OR 5 MILES WEST OF
SEMMES...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  REGIONAL AIRPORT IN WEST MOBILE...          MIDTOWN MOBILE...
  DOWNTOWN MOBILE...    SEMMES...             SATSUMA...
  SARALAND...           PRICHARD...           I65 AND US 45...
  I65 AND US 43...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 4 AND 21.

LAT...LON 3067 8842 3077 8841 3086 8841 3091 8781
      3067 8780
TIME...MOT...LOC 0451Z 267DEG 36KT 3078 8832

$$
909 
WWUS54 KMOB 060509
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1109 PM CST MON NOV 5 2012

ALC003-097-060520-
/O.CAN.KMOB.SV.W.0207.000000T0000Z-121106T0530Z/
BALDWIN AL-MOBILE AL-
1109 PM CST MON NOV 5 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR CENTRAL
MOBILE AND WEST CENTRAL BALDWIN COUNTIES...

AT 1108 PM CST...THE STORM THAT PROMPTED THE WARNING FOR CENTRAL
MOBILE AND WEST CENTRAL BALDWIN COUNTIES HAS WEAKENED TO BELOW SEVERE
LIMITS...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3067 8842 3077 8841 3086 8841 3091 8781
      3067 8780
TIME...MOT...LOC 0510Z 267DEG 36KT 3079 8810

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 5, 8:34 PM CSTSpecial Marine WarningMOB56 min
Nov 5, 9:30 PM CSTSpecial Marine WarningMOB90 min

Nearby

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