Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 25, NWS Mobile, AL

March 1, 2012Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 1, 2012, 9:51 AM CST for Conecuh County, Escambia County, Alabama. It was in force for 54 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
Mar 1, 2012, 9:51 AM CST (15:51 UTC)
Expired
Mar 1, 2012, 10:45 AM CST
In force
54 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Conecuh County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 127 km from the middle of the area, began a volume at 15:51 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

Birmingham, AL (KBMX), launched 12:00Z, 3.9 hours before the alert went out and 208 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, Birmingham, AL at 12:00Z on 2012-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 85 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, Birmingham, AL at 12:00Z on 2012-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.1939587897117Sfc1 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
85 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

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

964 
WUUS54 KMOB 011551
SVRMOB
ALC035-053-011645-
/O.NEW.KMOB.SV.W.0025.120301T1551Z-120301T1645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
951 AM CST THU MAR 1 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1045 AM CST

* AT 946 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 12
  MILES SOUTH OF FRISCO CITY...OR 5 MILES NORTHWEST OF I65 AND AL
  113...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHREVE...             REPTON...             I65 AND US 84...
  I65 AND CR 6...       I65 AND AL 41...      EVERGREEN...
  CASTLEBERRY...        US 29 AND CR 43...    I65 AND AL 113...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 63 AND 95.

&&

LAT...LON 3137 8667 3134 8670 3108 8671 3107 8694
      3116 8752 3126 8748 3126 8743 3142 8727
      3147 8670 3144 8670 3144 8668 3141 8666
TIME...MOT...LOC 1551Z 267DEG 34KT 3125 8732

$$
3 follow-up statements
848 
WWUS54 KMOB 011609
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1009 AM CST THU MAR 1 2012

ALC035-053-011645-
/O.CON.KMOB.SV.W.0025.000000T0000Z-120301T1645Z/
CONECUH AL-ESCAMBIA AL-
1009 AM CST THU MAR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CST
FOR NORTHEASTERN ESCAMBIA AND SOUTHERN CONECUH COUNTIES...

AT 1005 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR BARNETT CROSSROADS...OR 12 MILES NORTH OF FLOMATON...
MOVING EAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
RANGE...WALLACE...I65 AND AL 41...LENOX...I65 AND CR 
6...APPLETON...PEA RIDGE...BREWTON...LONDON...EAST 
BREWTON...CASTLEBERRY...SPRING HILL...KIRKLAND...ROCK 
HILL...BOYKIN...MARIETTA...DAMASCUS...MELROSE...GEORGIAVILLE. 
..JOHNSONVILLE...US 29 AND CR 43...ROBERTS...DIXIE AND BROOKLYN.

LAT...LON 3108 8671 3107 8694 3113 8728 3122 8736
      3134 8727 3138 8668 3136 8668 3135 8669
      3134 8670
TIME...MOT...LOC 1608Z 269DEG 24KT 3124 8725

$$
549 
WWUS54 KMOB 011625
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1025 AM CST THU MAR 1 2012

ALC035-053-011645-
/O.CON.KMOB.SV.W.0025.000000T0000Z-120301T1645Z/
CONECUH AL-ESCAMBIA AL-
1025 AM CST THU MAR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CST
FOR NORTHEASTERN ESCAMBIA AND SOUTHEASTERN CONECUH COUNTIES...

AT 1023 AM CST...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR APPLETON...OR 6 MILES NORTH OF 
BREWTON...MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CASTLEBERRY...SPRING HILL...KIRKLAND...ROCK HILL...NYMPH...ROBERTS...
BOYKIN...MARIETTA...DAMASCUS...MELROSE...GEORGIAVILLE...PAUL...
JOHNSNVILLE...US 29 AND CR 43...DIXIE AND BROOKLYN.

LAT...LON 3108 8671 3107 8694 3115 8717 3122 8718
      3135 8710 3138 8668 3136 8668 3134 8670
TIME...MOT...LOC 1625Z 272DEG 31KT 3122 8708

$$
124 
WWUS54 KMOB 011641
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1041 AM CST THU MAR 1 2012

ALC035-053-011645-
/O.CON.KMOB.SV.W.0025.000000T0000Z-120301T1645Z/
CONECUH AL-ESCAMBIA AL-
1041 AM CST THU MAR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CST
FOR NORTHEASTERN ESCAMBIA AND SOUTHEASTERN CONECUH COUNTIES...

AT 1038 AM CST...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF 
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS 
LOCATED NEAR KIRKLAND...OR 10 MILES NORTHEAST OF BREWTON...MOVING 
EAST AT 35 MPH.

IF CURRENT WEAKENING TRENDS CONTINUE...A SEVERE THUNDERSTORM WARNING 
WILL NOT BE REISSUED AND THE WARNING WILL BE ALLOWED TO EXPIRE AT 
1045 CST.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ROBERTS...SPRING HILL...BOYKIN...MARIETTA...DAMASCUS...MELROSE...
GEORGIAVILLE...PAUL...JOHNSONVILLE...US 29 AND CR 43...DIXIE AND 
BROOKLYN.

LAT...LON 3108 8671 3107 8694 3115 8717 3122 8718
      3135 8710 3138 8668 3136 8668 3134 8670
TIME...MOT...LOC 1640Z 272DEG 31KT 3122 8693

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 9:08 AM CSTAreal Flood AdvisoryMOBBaldwin, Clarke, Monroe, Washington112 min
Mar 1, 11:38 AM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Monroe22 min
Mar 1, 11:56 AM CSTSevere Thunderstorm WarningMOBCovington19 min
Mar 1, 3:50 PM CSTDense Fog AdvisoryMOB15 hr
Mar 1, 3:55 PM CSTMarine Dense Fog AdvisoryMOB20 hr

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.