Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 34, NWS Mobile, AL

June 10, 2012Covington County, Alabama

NWS Mobile, AL issued this tornado warning at Jun 10, 2012, 12:42 PM CDT for Covington County, Alabama. It was in force for 18 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, 12:42 PM CDT (17:42 UTC)
Expired
Jun 10, 2012, 1:00 PM CDT
In force
18 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Covington County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 10, 11:41 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.7 hours before the alert went out and 209 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, Tallahassee Rgnl, FL at 12:00Z on 2012-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1717 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, Tallahassee Rgnl, FL at 12:00Z on 2012-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.193958Sfc1 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
1717 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
478 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
217 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

178 
WFUS54 KMOB 101742
TORMOB
ALC039-101800-
/O.NEW.KMOB.TO.W.0034.120610T1742Z-120610T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1242 PM CDT SUN JUN 10 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 100 PM CDT

* AT 1242 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 9 MILES SOUTH OF OPP...OR 5 MILES SOUTH OF
  ONYCHA...MOVING NORTHEAST AT 30 MPH.

* THE TORNADIC STORM WILL BE NEAR...
  OPP AROUND 1255 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING FOR
SOUTH CENTRAL ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3112 8625 3115 8635 3145 8625 3144 8620
      3144 8619 3119 8619
TIME...MOT...LOC 1742Z 205DEG 27KT 3118 8628

$$
1 follow-up statement
595 
WWUS54 KMOB 101802
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
102 PM CDT SUN JUN 10 2012

ALC039-101812-
/O.EXP.KMOB.TO.W.0034.000000T0000Z-120610T1800Z/
COVINGTON AL-
102 PM CDT SUN JUN 10 2012

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

AT 100 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR EAST CENTRAL
COVINGTON COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE TORNADO
WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT SUNDAY EVENING FOR
SOUTH CENTRAL ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3112 8625 3115 8635 3145 8625 3144 8620
      3144 8619 3119 8619
TIME...MOT...LOC 1742Z 205DEG 27KT 3118 8628

$$

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, 9:50 AM CDTTornado WarningMOBCovington40 min
Jun 10, 10:56 AM CDTSpecial Marine WarningMOB2 hr
Jun 10, 12:39 PM CDTSpecial Marine WarningMOB51 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.