Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 96, NWS Mobile, AL

June 11, 2012Conecuh County, Escambia County, Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 11, 2012, 3:28 PM CDT for Conecuh County, Escambia County, Monroe County, Alabama. It was in force for 62 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: Jun 11, 2012, 3:28 PM CDT (20:28 UTC)
Expired: Jun 11, 2012, 4:30 PM CDT
In force: 62 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Conecuh County, AL, Escambia County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 116 km from the middle of the area, began a volume at 20:27 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, 8.5 hours before the alert went out and 222 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 506 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 459 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: -44 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.

166 
WUUS54 KMOB 112028
SVRMOB
ALC035-053-099-112130-
/O.NEW.KMOB.SV.W.0096.120611T2028Z-120611T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
328 PM CDT MON JUN 11 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTH CENTRAL MONROE COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 430 PM CDT

* AT 328 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
  DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
  7 MILES SOUTH OF FRISCO CITY TO 13 MILES SOUTH OF FRISCO CITY TO 9
  MILES NORTH OF ATMORE...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  I65 AND CR 6...       I65 AND AL 41...      CASTLEBERRY...
  RIVERVIEW...          MCCULLOUGH...         I65 AND AL 113...
  EAST BREWTON...       BREWTON...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 59 AND 86.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3118 8690 3103 8704 3114 8760 3126 8756
      3136 8752 3134 8687
TIME...MOT...LOC 2029Z 274DEG 21KT 3131 8742 3123 8742
          3116 8750

$$

3 follow-up statements

568 
WWUS54 KMOB 112049
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
349 PM CDT MON JUN 11 2012

ALC099-112059-
/O.CAN.KMOB.SV.W.0096.000000T0000Z-120611T2130Z/
MONROE AL-
349 PM CDT MON JUN 11 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED FOR SOUTH
CENTRAL MONROE COUNTY...

AT 349 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR SOUTH CENTRAL
MONROE COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE SEVERE 
THUNDERSTORM WARNING HAS BEEN CANCELLED.

LAT...LON 3112 8741 3122 8740 3133 8731 3128 8689
      3123 8689 3118 8690 3103 8704
TIME...MOT...LOC 2049Z 278DEG 23KT 3129 8726 3121 8726
          3114 8734

$$

ALC035-053-112130-
/O.CON.KMOB.SV.W.0096.000000T0000Z-120611T2130Z/
CONECUH AL-ESCAMBIA AL-
349 PM CDT MON JUN 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR CENTRAL ESCAMBIA AND SOUTHWESTERN CONECUH COUNTIES...

AT 349 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM
11 MILES SOUTHEAST OF FRISCO CITY TO 11 MILES NORTH OF FLOMATON TO 8
MILES NORTHWEST OF FLOMATON...MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  I65 AND AL 41...      RIVERVIEW...          I65 AND AL 113...
  EAST BREWTON...       BREWTON...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 63 AND 81.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. PREPARE FOR DAMAGING WINDS. PEOPLE
OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3112 8741 3122 8740 3133 8731 3128 8689
      3123 8689 3118 8690 3103 8704
TIME...MOT...LOC 2049Z 278DEG 23KT 3129 8726 3121 8726
          3114 8734

$$

865 
WWUS54 KMOB 112112
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
412 PM CDT MON JUN 11 2012

ALC035-053-112130-
/O.CON.KMOB.SV.W.0096.000000T0000Z-120611T2130Z/
CONECUH AL-ESCAMBIA AL-
412 PM CDT MON JUN 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR EASTERN ESCAMBIA AND SOUTH CENTRAL CONECUH COUNTIES...

AT 409 PM CDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
DAMAGING WINDS OVER 60 MPH WERE LOCATED ALONG A LINE THAT IS 
CURRENTLY APPROACHING THE NORTHWEST SIDE OF THE CITY OF 
BREWTON...MOVING EAST SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  RIVERVIEW...          EAST BREWTON...       BREWTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. PREPARE FOR DAMAGING WINDS. PEOPLE
OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3108 8720 3115 8722 3131 8713 3128 8689
      3123 8689 3118 8690 3103 8704
TIME...MOT...LOC 2111Z 278DEG 23KT 3124 8703 3118 8705
          3114 8709

$$

151 
WWUS54 KMOB 112133
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
433 PM CDT MON JUN 11 2012

ALC035-053-112144-
/O.EXP.KMOB.SV.W.0096.000000T0000Z-120611T2130Z/
CONECUH AL-ESCAMBIA AL-
433 PM CDT MON JUN 11 2012

...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE FOR
EASTERN ESCAMBIA AND SOUTH CENTRAL CONECUH COUNTIES...

AT 432 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR EASTERN
ESCAMBIA AND SOUTH CENTRAL CONECUH COUNTIES HAS WEAKENED TO BELOW
SEVERE LIMITS...THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED
TO EXPIRE.

LAT...LON 3108 8720 3115 8722 3131 8713 3128 8689
      3123 8689 3118 8690 3103 8704
TIME...MOT...LOC 2112Z 278DEG 23KT 3124 8702 3118 8704
          3114 8708

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 8:47 PM CDT	River Flood Warning	MOB	Mobile	30 hr
Jun 11, 5:47 AM CDT	Areal Flood Advisory	MOB	Baldwin	118 min
Jun 11, 6:43 AM CDT	Areal Flood Advisory	MOB	Baldwin, Mobile	2 hr
Jun 11, 8:55 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every 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.