Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 113, NWS Mobile, AL

July 3, 2012Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 3, 2012, 3:43 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 36 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 3, 2012, 3:43 PM CDT (20:43 UTC)
Expired
Jul 3, 2012, 4:19 PM CDT
In force
36 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 44 km from the middle of the area, began a volume at 20:44 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, 8.7 hours before the alert went out and 191 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 2012-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1652 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 2012-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
1652 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
51 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.

332 
WUUS54 KMOB 032043
SVRMOB
ALC003-097-032145-
/O.NEW.KMOB.SV.W.0113.120703T2043Z-120703T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
343 PM CDT TUE JUL 3 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  CENTRAL MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 445 PM CDT

* AT 340 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF          
  PRODUCING DAMAGING WINDS OVER 60 MPH WAS LOCATED OVER NORTHEAST    
  MOBILE AND NORTHERN BALDWIN COUNTIES OF ALABAMA. THIS LINE WAS     
  NEARLY STATIONARY BUT WAS DEVELOPING SOUTHWESTWARD.

* LOCATIONS IMPACTED INCLUDE...
  SATSUMA...            SARALAND...           I65 AND US 43...
  I65 AND AL 158...     CREOLA...             CHICKASAW...
  STAPLETON...          SPANISH FORT...       ROBERTSDALE...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 37 AND 63. THIS
INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 12 AND 24.

LAT...LON 3090 8832 3091 8794 3062 8751 3067 8741
      3063 8739 3048 8759
TIME...MOT...LOC 2041Z 198DEG 1KT 3074 8781

$$
2 follow-up statements
129 
WWUS54 KMOB 032109
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
409 PM CDT TUE JUL 3 2012

ALC097-032118-
/O.CAN.KMOB.SV.W.0113.000000T0000Z-120703T2145Z/
MOBILE AL-
409 PM CDT TUE JUL 3 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR CENTRAL
MOBILE COUNTY...

AT 403 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR CENTRAL 
MOBILE COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

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

LAT...LON 3073 8802 3078 8802 3079 8799 3081 8798
      3083 8794 3085 8795 3088 8799 3091 8796
      3091 8794 3062 8751 3067 8741 3063 8739
      3048 8759
TIME...MOT...LOC 2108Z 180DEG 0KT 3074 8781

$$

ALC003-032145-
/O.CON.KMOB.SV.W.0113.000000T0000Z-120703T2145Z/
BALDWIN AL-
409 PM CDT TUE JUL 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHERN BALDWIN COUNTY...

AT 403 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
DAMAGING WINDS OVER 60 MPH WAS MOVING THROUGH A LARGE PORTION OF 
CENTRAL BALDWIN COUNTY. THE STORMS WERE MOVING SOUTHWESTWARD AROUND 
5 MPH.

LOCATIONS IMPACTED INCLUDE...
  STAPLETON...          SPANISH FORT...       ROBERTSDALE...
  LOXLEY...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 37 AND 63.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3073 8802 3078 8802 3079 8799 3081 8798
      3083 8794 3085 8795 3088 8799 3091 8796
      3091 8794 3062 8751 3067 8741 3063 8739
      3048 8759
TIME...MOT...LOC 2108Z 180DEG 0KT 3074 8781

$$
414 
WWUS54 KMOB 032119
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
419 PM CDT TUE JUL 3 2012

ALC003-032128-
/O.CAN.KMOB.SV.W.0113.000000T0000Z-120703T2145Z/
BALDWIN AL-
419 PM CDT TUE JUL 3 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR SOUTHERN
BALDWIN COUNTY...

AT 417 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTHERN 
BALDWIN COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS...THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

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

LAT...LON 3073 8802 3078 8802 3079 8799 3081 8798
      3083 8794 3085 8795 3088 8799 3091 8796
      3091 8794 3062 8751 3067 8741 3063 8739
      3048 8759
TIME...MOT...LOC 2118Z 180DEG 0KT 3074 8781

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 1:58 PM CDTSevere Thunderstorm WarningMOBClarke32 min
Jul 3, 2:47 PM CDTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe32 min
Jul 3, 2:53 PM CDTSevere Thunderstorm WarningMOBMobile25 min
Jul 3, 3:14 PM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia61 min
Jul 3, 3:31 PM CDTSevere Thunderstorm WarningMOBMobile, Washington31 min
Jul 3, 4:01 PM CDTSpecial Marine WarningMOB89 min
Jul 3, 4:25 PM CDTSevere Thunderstorm WarningMOBBaldwin23 min
Jul 3, 4:43 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw62 min
Jul 3, 5:14 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw49 min
Jul 3, 6:27 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw29 min

Nearby

Severe 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.