Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 33, NWS Mobile, AL

June 10, 2012Covington County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 10, 2012, 9:50 AM CDT for Covington County, Alabama. It was in force for 40 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 10, 2012, 9:50 AM CDT (14:50 UTC)
Expired
Jun 10, 2012, 10:30 AM CDT
In force
40 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 88 km from the middle of the area, began a volume at 14:53 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, 2.8 hours before the alert went out and 232 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 2012-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 384 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 2012-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
384 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
461 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
114 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.

342 
WFUS54 KMOB 101450
TORMOB
ALC039-101530-
/O.NEW.KMOB.TO.W.0033.120610T1450Z-120610T1530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
950 AM CDT SUN JUN 10 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1030 AM CDT

* AT 950 AM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND
  LIKELY PRODUCING A TORNADO WAS LOCATED 17 MILES WEST OF FLORALA...
  OR 10 MILES SOUTHWEST OF FALCO...MOVING NORTH AT 25 MPH.

* THE TORNADIC STORM WILL BE NEAR...
  FALCO AROUND 1010 AM CDT...
  CAROLINA AROUND 1025 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
STRONG ROTATION HAS BEEN DETECTED AND A TORNADO MAY ALREADY BE ON THE
GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER.

&&

LAT...LON 3099 8653 3099 8669 3100 8669 3101 8670
      3103 8671 3145 8659 3136 8632
TIME...MOT...LOC 1450Z 201DEG 22KT 3104 8663

$$

PURDY
3 follow-up statements
062 
WWUS54 KMOB 101500
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1000 AM CDT SUN JUN 10 2012

ALC039-101530-
/O.CON.KMOB.TO.W.0033.000000T0000Z-120610T1530Z/
COVINGTON AL-
1000 AM CDT SUN JUN 10 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR
COVINGTON COUNTY...

AT 1000 AM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND 
LIKELY PRODUCING A TORNADO WAS LOCATED 16 MILES WEST OF FLORALA...OR 
6 MILES SOUTH OF FALCO...MOVING NORTHEAST AT 25 MPH.

THE TORNADIC STORM WILL BE NEAR...
  FALCO AROUND 1010 AM CDT...
  CAROLINA AROUND 1025 AM CDT...
  LIBERTYVILLE AROUND 1030 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
STRONG ROTATION HAS BEEN DETECTED AND A TORNADO MAY ALREADY BE ON THE
GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

TAKE COVER NOW. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING.

IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER.

&&

LAT...LON 3106 8651 3103 8659 3107 8667 3145 8659
      3136 8632
TIME...MOT...LOC 1500Z 209DEG 22KT 3109 8659

$$

PURDY
676 
WWUS54 KMOB 101514
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1014 AM CDT SUN JUN 10 2012

ALC039-101530-
/O.CON.KMOB.TO.W.0033.000000T0000Z-120610T1530Z/
COVINGTON AL-
1014 AM CDT SUN JUN 10 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR CENTRAL
COVINGTON COUNTY...

AT 1014 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 13 MILES SOUTH OF ANDALUSIA...OR NEAR FALCO...MOVING 
NORTHEAST AT 25 MPH.

THE TORNADIC STORM WILL BE NEAR...
  CAROLINA AROUND 1030 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
STRONG ROTATION HAS BEEN DETECTED AND A TORNADO MAY ALREADY BE ON THE
GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER.

&&

LAT...LON 3111 8653 3110 8657 3113 8660 3141 8652
      3135 8632 3128 8637
TIME...MOT...LOC 1514Z 207DEG 21KT 3116 8655

$$
758 
WWUS54 KMOB 101531
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1031 AM CDT SUN JUN 10 2012

ALC039-101540-
/O.EXP.KMOB.TO.W.0033.000000T0000Z-120610T1530Z/
COVINGTON AL-
1031 AM CDT SUN JUN 10 2012

...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE FOR CENTRAL
COVINGTON COUNTY...

AT 1030 AM CDT...THE STORM ROTATION THAT PROMPTED THE WARNING FOR 
CENTRAL COVINGTON COUNTY HAS WEAKENED...THUS THE TORNADO WARNING HAS 
BEEN ALLOWED TO EXPIRE.

ALTHOUGH THIS WARNING HAS EXPIRED...ADDITIONAL STORMS MAY DEVELOP
REQUIRING NEW WARNINGS.

LAT...LON 3111 8653 3110 8657 3113 8660 3141 8652
      3135 8632 3128 8637
TIME...MOT...LOC 1514Z 207DEG 21KT 3116 8655

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 3:07 AM CDTFlash Flood WarningMOBMobile4 hr
Jun 10, 5:28 AM CDTRip Current StatementMOB39 hr
Jun 10, 7:50 AM CDTSmall Craft AdvisoryMOB24 hr
Jun 10, 8:40 AM CDTSpecial Marine WarningMOB95 min
Jun 10, 9:02 AM CDTAreal Flood AdvisoryMOBBaldwin, Mobile, Washington118 min
Jun 10, 9:12 AM CDTSpecial Marine WarningMOB93 min
Jun 10, 10:56 AM CDTSpecial Marine WarningMOB2 hr
Jun 10, 12:39 PM CDTSpecial Marine WarningMOB51 min
Jun 10, 12:42 PM CDTTornado WarningMOBCovington18 min

Nearby

Tornado Warnings in Alabama, 2012Every tornado warning in 2012Tornadoes 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.