Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 45, NWS Mobile, AL

August 29, 2012Monroe County, Wilcox County, Alabama

NWS Mobile, AL issued this tornado warning at Aug 29, 2012, 7:27 PM CDT for Monroe County, Wilcox County, Alabama. It was in force for 30 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
Aug 29, 2012, 7:27 PM CDT (00:27 UTC)
Expired
Aug 29, 2012, 7:57 PM CDT
In force
30 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Monroe County, AL, Wilcox County, AL

The radar

The Birmingham radar (KBMX), 132 km from the middle of the area, began a volume at 00:30 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 00:00Z, 0.5 hours before the alert went out and 133 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 00:00Z on 2012-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 892 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2012-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
892 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
133 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.

161 
WFUS54 KMOB 300027
TORMOB
ALC099-131-300115-
/O.NEW.KMOB.TO.W.0045.120830T0027Z-120830T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
727 PM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  EASTERN WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 815 PM CDT

* AT 723 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 21 MILES WEST OF GREENVILLE...OR 5 MILES SOUTH
  OF PINE APPLE...MOVING NORTHWEST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BOYKIN...             PINE APPLE...         OAK HILL...

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 MIDNIGHT CDT THURSDAY MORNING
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3211 8723 3210 8722 3210 8721 3208 8719
      3205 8717 3205 8696 3177 8691 3173 8701
      3210 8733 3212 8723
TIME...MOT...LOC 0028Z 150DEG 21KT 3182 8700

$$
1 follow-up statement
831 
WWUS54 KMOB 300057
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
757 PM CDT WED AUG 29 2012

ALC099-131-300107-
/O.CAN.KMOB.TO.W.0045.000000T0000Z-120830T0115Z/
MONROE AL-WILCOX AL-
757 PM CDT WED AUG 29 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR EASTERN WILCOX AND
NORTHEASTERN MONROE COUNTIES...

AT 755 PM CDT...THE STORM THAT PROMPTED THE WARNING FOR EASTERN
WILCOX AND NORTHEASTERN MONROE COUNTIES HAS WEAKENED TO BELOW SEVERE
LIMITS...THUS THE TORNADO WARNING HAS BEEN CANCELLED.


LAT...LON 3211 8723 3210 8722 3210 8721 3208 8719
      3205 8717 3205 8696 3177 8691 3173 8701
      3210 8733 3212 8723
TIME...MOT...LOC 0057Z 150DEG 21KT 3197 8710

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:29 PM CDTSmall Craft AdvisoryMOB33 hr
Aug 29, 7:45 PM CDTCoastal Flood WarningMOB21 hr
Aug 30, 12:22 AM CDTFlash Flood WarningMOBMobile, Washington6 hr
Aug 30, 12:52 AM CDTWind AdvisoryMOBWashington16 hr
Aug 30, 2:28 AM CDTAreal Flood WarningMOBMobile, Washington12 hr
Aug 30, 2:46 AM CDTTornado WarningMOBCovington33 min
Aug 30, 3:53 AM CDTTornado WarningMOBCovington, Escambia37 min
Aug 30, 4:09 AM CDTTornado WarningMOBButler, Crenshaw16 min
Aug 30, 4:31 AM CDTTornado WarningMOBWashington29 min
Aug 30, 4:32 AM CDTTornado WarningMOBCovington28 min
Aug 30, 6:43 AM CDTTornado WarningMOBChoctaw, Washington37 min
Aug 30, 7:41 AM CDTTornado WarningMOBMobile33 min
Aug 30, 8:10 AM CDTTornado WarningMOBChoctaw, Washington35 min
Aug 30, 8:13 AM CDTTornado WarningMOBWashington32 min
Aug 30, 8:45 AM CDTTornado WarningMOBChoctaw, Washington45 min
Aug 30, 9:01 AM CDTTornado WarningMOBMobile, Washington44 min
Aug 30, 10:16 AM CDTTornado WarningMOBChoctaw, Washington44 min
Aug 30, 10:56 AM CDTTornado WarningMOBChoctaw49 min
Aug 30, 11:32 AM CDTSevere Thunderstorm WarningMOBMobile43 min
Aug 30, 11:44 AM CDTFlash Flood WarningMOBMobile, Washington6 hr
Aug 30, 11:56 AM CDTTornado WarningMOBChoctaw33 min
Aug 30, 4:29 PM CDTHigh Surf AdvisoryMOB20 hr

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.