Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 93, NWS Mobile, AL

September 3, 2011George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this tornado warning at Sep 3, 2011, 6:09 PM CDT for George County, Mississippi; Mobile County, Alabama. It was in force for 51 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
Sep 3, 2011, 6:09 PM CDT (23:09 UTC)
Expired
Sep 3, 2011, 7:00 PM CDT
In force
51 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 14 km from the middle of the area, began a volume at 23:11 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 watch it was issued in

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

IssuedProductOfficeLasted
Sep 3, 9:41 AM CDTTornado WatchSPC12 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.2 hours before the alert went out and 152 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, Slidell Radar S, LA at 12:00Z on 2011-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 850 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, Slidell Radar S, LA at 12:00Z on 2011-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 286 square meters per square second.19395878Sfc1 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
850 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.0

Open this sounding in Storm Lab

The text

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

551 
WFUS54 KMOB 032309
TORMOB
ALC097-MSC039-040000-
/O.NEW.KMOB.TO.W.0093.110903T2309Z-110904T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
609 PM CDT SAT SEP 3 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 700 PM CDT

* AT 606 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES EAST OF
  BAYOU LA BATRE...OR 8 MILES NORTH OF EAST END OF DAUPHIN...MOVING
  NORTHWEST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  BELLE FONTAINE AROUND 620 PM CDT...
  THEODORE AROUND 630 PM CDT...
  TILLMANS CORNER AROUND 635 PM CDT...
  FOREST HILL AROUND 645 PM CDT...
  TANNER WILLIAMS AROUND 650 PM CDT...
  SEMMES AROUND 700 PM CDT...

THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 9 AND 23.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 1 AND 7.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MANUFACTURED HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3080 8847 3092 8822 3060 8805 3058 8806
      3057 8808 3053 8807 3051 8809 3047 8809
      3045 8810 3037 8810 3032 8813
TIME...MOT...LOC 2309Z 152DEG 33KT 3039 8806

$$
1 follow-up statement
674 
WWUS54 KMOB 032321
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
621 PM CDT SAT SEP 3 2011

ALC097-MSC039-040000-
/O.CON.KMOB.TO.W.0093.000000T0000Z-110904T0000Z/
GEORGE MS-MOBILE AL-
621 PM CDT SAT SEP 3 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR SOUTHERN
MOBILE AND SOUTHEASTERN GEORGE COUNTIES...

AT 616 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR MON LOUIS...OR 
EAST FOWL RIVER...MOVING NORTHWEST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  LAURENDINE...IRVINGTON...THEODORE AND HOLLINGERS ISLAND BY 625 PM
  CDT...
  I10 AND MCDONALD RD...TILLMANS CORNER...ROBINWOOD AND SAINT ELMO BY
  630 PM CDT...
  DAWES AND MEADOW LAKE BY 635 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3036 8813 3046 8823 3079 8847 3092 8822
      3058 8806 3057 8808 3053 8807 3051 8809
      3047 8809 3045 8810 3037 8810
TIME...MOT...LOC 2320Z 142DEG 36KT 3047 8815

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 10:37 PM CDTTropical Storm WarningMOBGeorge, Stone47 hr
Sep 3, 9:26 AM CDTRiver Flood WarningMOBGeorge, Greene, Perry4 days
Sep 3, 2:14 PM CDTTornado WarningMOBGeorge, Greene33 min
Sep 3, 3:19 PM CDTFlash Flood WarningMOBGeorge, Perry, Stone4 hr
Sep 3, 4:53 PM CDTFlash Flood WarningMOBGeorge, Greene, Perry3 hr
Sep 3, 1:44 AM CDTSpecial Marine WarningMOB46 min
Sep 3, 2:13 AM CDTSpecial Marine WarningMOB47 min
Sep 3, 3:38 AM CDTSpecial Marine WarningMOB22 min
Sep 3, 4:00 AM CDTSpecial Marine WarningMOB30 min
Sep 3, 4:31 AM CDTSpecial Marine WarningMOB44 min
Sep 3, 9:15 AM CDTRiver Flood WarningMOBBaldwin24 hr
Sep 3, 9:16 AM CDTRiver Flood WarningMOBBaldwin24 hr
Sep 3, 9:19 AM CDTRiver Flood WarningMOBBaldwin24 hr
Sep 3, 10:59 AM CDTSpecial Marine WarningMOB46 min
Sep 3, 12:14 PM CDTSpecial Marine WarningMOB46 min
Sep 3, 12:53 PM CDTTornado WarningMOBMobile22 min
Sep 3, 1:00 PM CDTSpecial Marine WarningMOB21 min
Sep 3, 1:29 PM CDTSpecial Marine WarningMOB61 min
Sep 3, 1:50 PM CDTRiver Flood WarningMOBMobile31 hr
Sep 3, 2:00 PM CDTTornado WarningMOBMobile16 min
Sep 3, 2:19 PM CDTFlash Flood WarningMOBMobile4 hr
Sep 3, 4:10 PM CDTSpecial Marine WarningMOB15 min
Sep 3, 5:00 PM CDTSpecial Marine WarningMOB45 min
Sep 3, 5:33 PM CDTSpecial Marine WarningMOB42 min
Sep 3, 6:06 PM CDTSpecial Marine WarningMOB39 min

Nearby

Tornado Warnings in Mississippi, 2011Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes in 2011

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.