Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 63, NWS Mobile, AL

August 30, 2012Choctaw County, Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Aug 30, 2012, 10:16 AM CDT for Choctaw County, Washington County, Alabama. It was in force for 44 min. 1 report 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
Aug 30, 2012, 10:16 AM CDT (15:16 UTC)
Expired
Aug 30, 2012, 11:00 AM CDT
In force
44 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Choctaw County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 122 km from the middle of the area, began a volume at 15:16 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
Aug 30, 10:58 AM CDTTORNADO1 E Toxey, ALDOWNED AND SNAPPED TREES REPORTED NEAR THE TOWN OF TOXEY.

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
Aug 30, 7:13 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.3 hours before the alert went out and 186 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, Jackson, MS at 12:00Z on 2012-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 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, Jackson, MS at 12:00Z on 2012-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 473 square meters per square second.1939587897Sfc1 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
107 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
501 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
473 m²/s²
0-3 km storm-relative helicity
650 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

577 
WFUS54 KMOB 301516
TORMOB
ALC023-129-301600-
/O.NEW.KMOB.TO.W.0063.120830T1516Z-120830T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1016 AM CDT THU AUG 30 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
  NORTH CENTRAL WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 1100 AM CDT

* AT 1012 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 2 MILES SOUTHWEST OF CHATOM...OR 6 MILES NORTH
  OF TIBBIE...MOVING NORTH AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              GILBERTOWN...
  MILLRY...             CHATOM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

&&

LAT...LON 3197 8813 3187 8814 3182 8818 3176 8815
      3141 8820 3142 8838 3197 8838
TIME...MOT...LOC 1516Z 184DEG 34KT 3149 8828

$$
3 follow-up statements
688 
WWUS54 KMOB 301525
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1025 AM CDT THU AUG 30 2012

ALC023-129-301600-
/O.CON.KMOB.TO.W.0063.000000T0000Z-120830T1600Z/
CHOCTAW AL-WASHINGTON AL-
1025 AM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR NORTH
CENTRAL WASHINGTON AND SOUTHERN CHOCTAW COUNTIES...

AT 1021 AM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND 
LIKELY PRODUCING A TORNADO WAS LOCATED 5 MILES NORTH OF CHATOM...OR 
7 MILES SOUTH OF MILLRY...MOVING NORTH AT 40 MPH. THIS IS VERY CLOSE 
TO YARBO.

LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              GILBERTOWN...
  MILLRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3197 8813 3187 8814 3182 8818 3176 8815
      3148 8819 3149 8838 3197 8838
TIME...MOT...LOC 1524Z 181DEG 33KT 3156 8828

$$
981 
WWUS54 KMOB 301533
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1033 AM CDT THU AUG 30 2012

ALC023-129-301600-
/O.CON.KMOB.TO.W.0063.000000T0000Z-120830T1600Z/
CHOCTAW AL-WASHINGTON AL-
1033 AM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR NORTH
CENTRAL WASHINGTON AND SOUTHERN CHOCTAW COUNTIES...

AT 1030 AM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND
LIKELY PRODUCING A TORNADO  WAS LOCATED 11 MILES NORTH OF CHATOM...OR
NEAR MILLRY...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              GILBERTOWN...
  MILLRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3197 8813 3187 8814 3182 8818 3157 8821
      3157 8837 3197 8838
TIME...MOT...LOC 1533Z 180DEG 41KT 3166 8828

$$
815 
WWUS54 KMOB 301545
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1045 AM CDT THU AUG 30 2012

ALC129-301554-
/O.CAN.KMOB.TO.W.0063.000000T0000Z-120830T1600Z/
WASHINGTON AL-
1045 AM CDT THU AUG 30 2012

...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTH CENTRAL
WASHINGTON COUNTY...

AT 1040 AM CDT...THE STORM THAT PROMPTED THE WARNING FOR NORTH 
CENTRAL WASHINGTON COUNTY HAS MOVED OUT OF THE COUNTY...THUS THE 
TORNADO WARNING HAS BEEN CANCELLED.

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3197 8817 3182 8819 3170 8822 3170 8837
      3197 8838
TIME...MOT...LOC 1544Z 178DEG 36KT 3176 8830

$$

ALC023-301600-
/O.CON.KMOB.TO.W.0063.000000T0000Z-120830T1600Z/
CHOCTAW AL-
1045 AM CDT THU AUG 30 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR SOUTH
CENTRAL CHOCTAW COUNTY...

AT 1040 AM CDT...A SEVERE THUNDERSTORM WITH STRONG ROTATION AND 
LIKELY PRODUCING A TORNADO WAS LOCATED 18 MILES NORTH OF CHATOM...OR 
3 MILES SOUTHEAST OF SILAS...MOVING NORTH AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  TOXEY...              SILAS...              GILBERTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER...CALL (800) 284-9059.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3197 8817 3182 8819 3170 8822 3170 8837
      3197 8838
TIME...MOT...LOC 1544Z 178DEG 36KT 3176 8830

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:27 PM CDTTornado WarningMOBMonroe, Wilcox30 min
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, 10:56 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.