Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 14, NWS Mobile, AL

February 18, 20124 counties in Alabama; Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Feb 18, 2012, 3:13 PM CST for 4 counties in Alabama; Escambia County, Santa Rosa County, Florida. It was in force for 47 min. 3 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
Feb 18, 2012, 3:13 PM CST (21:13 UTC)
Expired
Feb 18, 2012, 4:00 PM CST
In force
47 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Conecuh County, AL, Escambia County, AL, Monroe County, AL, Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 100 km from the middle of the area, began a volume at 21:14 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
Feb 18, 3:24 PM CSTTSTM WND DMG1 S Poarch, ALTREES BLOWN DOWN BY THUNDERSTORM WINDS ACROSS INTERSTATE 65 BETWEEN MILE MARKERS 54 AND 55.
Feb 18, 3:24 PM CSTTSTM WND DMGFreemanville, ALTREES AND POWER LINES BLOWN DOWN BY SEVERE THUNDERSTORM WINDS.
Feb 18, 3:48 PM CSTTSTM WND DMGAppleton, ALSEVERAL TREES BLOWN DOWN DUE TO SEVERE THUNDERSTORM WINDS.

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
Feb 18, 11:49 AM CSTTornado WatchSPC5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.2 hours before the alert went out and 235 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 2012-02-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1694 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
143 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.

875 
WUUS54 KMOB 182113
SVRMOB
ALC003-035-053-099-FLC033-113-182200-
/O.NEW.KMOB.SV.W.0014.120218T2113Z-120218T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
313 PM CST SAT FEB 18 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  NORTHWESTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
  SOUTHWESTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  EXTREME SOUTHWESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTH CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 400 PM CST

* AT 313 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 18 MILES SOUTHWEST OF FRISCO CITY TO 12 MILES NORTHWEST OF
  ATMORE TO 13 MILES WEST OF ATMORE TO 8 MILES NORTH OF BAY
  MINETTE...AND MOVING EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITFIELD...          MOUNT CARMEL...       FIDELIS...
  DIXONVILLE...         COBBTOWN...          
  POARCH CREEK RESERVATION...                 JAY...
  BERRYDALE...          FLOMATON...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 35 AND 79.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3130 8687 3114 8686 3084 8698 3092 8786
      3101 8775 3115 8772 3126 8770
TIME...MOT...LOC 2113Z 270DEG 50KT 3126 8758 3113 8758
          3100 8762 3089 8775

$$
4 follow-up statements
523 
WWUS54 KMOB 182127
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
327 PM CST SAT FEB 18 2012

ALC099-182137-
/O.CAN.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
MONROE AL-
327 PM CST SAT FEB 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHWESTERN MONROE
COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3084 8698 3097 8769 3105 8751 3113 8749
      3123 8756 3126 8748 3126 8743 3127 8743
      3130 8687 3114 8686
TIME...MOT...LOC 2127Z 270DEG 50KT 3126 8735 3113 8735
          3100 8739 3089 8752

$$

ALC003-035-053-FLC033-113-182200-
/O.CON.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
CONECUH AL-ESCAMBIA AL-SANTA ROSA FL-ESCAMBIA FL-BALDWIN AL-
327 PM CST SAT FEB 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR CENTRAL BALDWIN...NORTHERN ESCAMBIA...NORTHWESTERN SANTA ROSA...
ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES...

AT 327 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HUXFORD TO LITTLE ROCK TO MALTA TO 8 MILES SOUTH OF
NOKOMIS...OR ALONG A LINE EXTENDING FROM 11 MILES SOUTH OF FRISCO
CITY TO 7 MILES NORTHEAST OF ATMORE TO ATMORE TO 12 MILES SOUTHWEST
OF ATMORE...MOVING EAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BARNETT
CROSSROADS...PINEVIEW...FLOMATON...WALLACE...BYRNEVILLE...FOSHEE...
GANDYVILLE...HAMMAC...I65 AND AL 41...OSAKA...SOUTH FLOMATON...
WAHL...WELKA...BLUFF SPRINGS...POLLARD...APPLETON...OYSTER LODGE...
KEEGO...BREWTON...PEA RIDGE...KIRKLAND...BROWNSDALE...MOUNT CARMEL...
EAST BREWTON...RIVERVIEW...JAY...SPRING HILL...DIXONVILLE...ROCK
HILL...COBBTOWN...PINE LEVEL...WHITFIELD...FIDELIS...BOYKIN...
JOHNSONVILLE...ROBERTS...SELLERSVILLE...BERRYDALE AND SIMMONS
CROSSING

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3084 8698 3097 8769 3105 8751 3113 8749
      3123 8756 3126 8748 3126 8743 3127 8743
      3130 8687 3114 8686
TIME...MOT...LOC 2127Z 270DEG 50KT 3126 8735 3113 8735
          3100 8739 3089 8752

$$
343 
WWUS54 KMOB 182136
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
336 PM CST SAT FEB 18 2012

ALC003-035-053-FLC033-113-182200-
/O.CON.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
CONECUH AL-ESCAMBIA AL-SANTA ROSA FL-ESCAMBIA FL-BALDWIN AL-
336 PM CST SAT FEB 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR CENTRAL BALDWIN...NORTHERN ESCAMBIA...NORTHWESTERN SANTA ROSA...
ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES...

AT 336 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BARNETT CROSSROADS TO STANLEY CROSSROADS TO MALTA TO
NOKOMIS...OR ALONG A LINE EXTENDING FROM 11 MILES SOUTH OF FRISCO
CITY TO FLOMATON TO ATMORE TO 10 MILES SOUTHWEST OF ATMORE...MOVING
EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BRATT...FOSHEE...HAMMAC...WALLACE...OSAKA...I65 AND AL 41...
GANDYVILLE...BYRNEVILLE...SOUTH FLOMATON...WAHL...WELKA...APPLETON...
PEA RIDGE...KEEGO...POLLARD...BREWTON...EAST BREWTON...OYSTER
LODGE...BLUFF SPRINGS...SPRING HILL...RIVERVIEW...KIRKLAND...
BROWNSDALE...ROCK HILL...MOUNT CARMEL...BOYKIN...WHITFIELD...SIMMONS
CROSSING...SELLERSVILLE...FIDELIS...DIXONVILLE...COBBTOWN...
BERRYDALE...PINE LEVEL...JOHNSONVILLE AND ROBERTS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3084 8698 3097 8769 3105 8751 3113 8749
      3123 8756 3123 8755 3126 8748 3126 8743
      3127 8742 3130 8687 3114 8686
TIME...MOT...LOC 2136Z 271DEG 44KT 3125 8732 3109 8729
          3101 8740 3094 8754

$$
708 
WWUS54 KMOB 182143
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
343 PM CST SAT FEB 18 2012

ALC003-035-053-FLC033-113-182200-
/O.CON.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
CONECUH AL-ESCAMBIA AL-SANTA ROSA FL-ESCAMBIA FL-BALDWIN AL-
343 PM CST SAT FEB 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR CENTRAL BALDWIN...NORTHERN ESCAMBIA...NORTHWESTERN SANTA ROSA...
ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES...

AT 342 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BARNETT CROSSROADS TO FLOMATON TO WAWBEEK TO RALEY
FOREST HILL...OR ALONG A LINE EXTENDING FROM 12 MILES SOUTHEAST OF
FRISCO CITY TO FLOMATON TO ATMORE TO 8 MILES SOUTHWEST OF ATMORE...
MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I65 AND
AL 41...GANDYVILLE...BYRNEVILLE...SOUTH FLOMATON...WAHL...WELKA...
APPLETON...KEEGO...PEA RIDGE...POLLARD...BREWTON...BLUFF SPRINGS...
EAST BREWTON...OYSTER LODGE...SPRING HILL...RIVERVIEW...KIRKLAND...
BROWNSDALE...ROCK HILL...MOUNT CARMEL...BOYKIN...WHITFIELD...SIMMONS
CROSSING...SELLERSVILLE...FIDELIS...DIXONVILLE...COBBTOWN...
BERRYDALE...PINE LEVEL...JOHNSONVILLE AND ROBERTS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS WITH TREES 
DOWN REPORTED ALONG I65 NEAR MILE MARKER 54 AND 55. SEEK SHELTER NOW 
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3084 8698 3097 8769 3105 8751 3113 8749
      3123 8756 3123 8755 3126 8748 3126 8743
      3127 8742 3130 8687 3114 8686
TIME...MOT...LOC 2142Z 271DEG 44KT 3125 8723 3109 8720
          3101 8731 3094 8745

$$
317 
WWUS54 KMOB 182151
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
351 PM CST SAT FEB 18 2012

ALC003-182201-
/O.CAN.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
BALDWIN AL-
351 PM CST SAT FEB 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BALDWIN COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3099 8692 3085 8698 3092 8744 3094 8749
      3102 8740 3110 8723 3128 8717 3130 8687
      3115 8686 3110 8688 3107 8689
TIME...MOT...LOC 2151Z 268DEG 40KT 3125 8709 3110 8714
          3102 8727 3097 8739

$$

ALC035-053-FLC033-113-182200-
/O.CON.KMOB.SV.W.0014.000000T0000Z-120218T2200Z/
CONECUH AL-ESCAMBIA AL-SANTA ROSA FL-ESCAMBIA FL-
351 PM CST SAT FEB 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CST
FOR NORTHEASTERN ESCAMBIA...NORTHWESTERN SANTA ROSA...CENTRAL
ESCAMBIA AND SOUTH CENTRAL CONECUH COUNTIES...

AT 347 PM CST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM APPLETON TO HAMMAC TO WAWBEEK TO
BRATT...OR ALONG A LINE EXTENDING FROM 9 MILES NORTH OF BREWTON TO
FLOMATON TO ATMORE...MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GANDYVILLE...PEA RIDGE...BYRNEVILLE...SOUTH FLOMATON...KIRKLAND...
KEEGO...WAHL...WELKA...POLLARD...BLUFF SPRINGS...SPRING HILL...EAST
BREWTON...BOYKIN...WHITFIELD...SIMMONS CROSSING...SELLERSVILLE...
MOUNT CARMEL...FIDELIS...DIXONVILLE...COBBTOWN...OYSTER LODGE...
BERRYDALE...BROWNSDALE...PINE LEVEL...JOHNSONVILLE...ROCK HILL...
ROBERTS AND RIVERVIEW

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST SATURDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3099 8692 3085 8698 3092 8744 3094 8749
      3102 8740 3110 8723 3128 8717 3130 8687
      3115 8686 3110 8688 3107 8689
TIME...MOT...LOC 2151Z 268DEG 40KT 3125 8709 3110 8714
          3102 8727 3097 8739

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 3:38 AM CSTWind AdvisoryMOB38 hr
Feb 18, 1:56 PM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile49 min
Feb 18, 2:28 PM CSTFlash Flood WarningMOBMobile, Washington32 days
Feb 18, 3:28 PM CSTGale WarningMOB21 hr
Feb 18, 3:37 PM CSTFlash Flood WarningMOBBaldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more113 min
Feb 18, 3:59 PM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile61 min
Feb 18, 4:01 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia44 min
Feb 18, 4:07 PM CSTSpecial Marine WarningMOB83 min
Feb 18, 4:19 PM CSTFlash Flood WarningMOBBaldwin, Mobile116 min
Feb 18, 4:21 PM CSTTornado WarningMOBMobile24 min
Feb 18, 4:25 PM CSTAreal Flood AdvisoryMOBChoctaw, Clarke, Monroe, Washington, Wilcox2 hr
Feb 18, 4:30 PM CSTFlash Flood WarningMOBMobile, Washington60 min
Feb 18, 4:38 PM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Crenshaw, Escambia52 min
Feb 18, 4:52 PM CSTFlash Flood WarningMOBBaldwin113 min
Feb 18, 4:59 PM CSTSevere Thunderstorm WarningMOBBaldwin76 min
Feb 18, 5:13 PM CSTFlash Flood WarningMOBBaldwin, Butler, Conecuh, Covington, Crenshaw, Escambia2 hr
Feb 18, 5:17 PM CSTTornado WarningMOBBaldwin28 min
Feb 18, 5:27 PM CSTSpecial Marine WarningMOB93 min

Nearby

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