Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 96, NWS Mobile, AL

September 4, 2011George County, Mississippi; Mobile County, Alabama

NWS Mobile, AL issued this tornado warning at Sep 4, 2011, 12:59 AM CDT for George County, Mississippi; Mobile County, Alabama. It was in force for 61 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: Sep 4, 2011, 12:59 AM CDT (05:59 UTC)
Expired: Sep 4, 2011, 2:00 AM CDT
In force: 61 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 22 km from the middle of the area, began a volume at 06:02 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

Time	Report	Where	Remark
Sep 4, 1:02 AM CDT	TORNADO	2 Ssw Bellefontaine, AL	HOME DAMAGED WITH SEVERAL TREES DOWN ALONG PIONEER ROAD AND FOWL RIVER ROAD. POSSIBLE TORNADO.

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.

Issued	Product	Office	Lasted
Sep 3, 9:43 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 6.0 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1081 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 495 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 154 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.

351 
WFUS54 KMOB 040559
TORMOB
ALC097-MSC039-040700-
/O.NEW.KMOB.TO.W.0096.110904T0559Z-110904T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1259 AM CDT SUN SEP 4 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  WESTERN MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 200 AM CDT

* AT 1257 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES WEST    
  OF TANNER WILLIAMS...MOVING NORTHWEST AT 30 MPH. OTHER POTENTIAL   
  TORNADO PRODUCING THUNDERSTORMS ARE SOUTH OF THIS THUNDERSTORM.    
  ONE WAS LOCATED BETWEEN BELLE FONTAINE AND ALABAMA PORT.

* LOCATIONS IMPACTED INCLUDE...
  TILLMANS CORNER...    THEODORE...           TANNER WILLIAMS...
  SEMMES...             I10 AND I65...        GULFCREST...
  GRAND BAY...          FOREST HILL...        BELLE FONTAINE...

THIS INCLUDES INTERSTATE 10 IN ALABAMA BETWEEN MILE MARKERS 1 AND 21.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 1 AND 5.

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 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3035 8820 3037 8825 3032 8825 3033 8827
      3037 8826 3037 8832 3039 8833 3037 8839
      3039 8840 3073 8842 3074 8849 3097 8856
      3102 8824 3053 8807 3051 8809 3037 8810
      3032 8816 3031 8822
TIME...MOT...LOC 0558Z 156DEG 26KT 3069 8836

$$

2 follow-up statements

099 
WWUS54 KMOB 040625
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
125 AM CDT SUN SEP 4 2011

ALC097-MSC039-040700-
/O.CON.KMOB.TO.W.0096.000000T0000Z-110904T0700Z/
GEORGE MS-MOBILE AL-
125 AM CDT SUN SEP 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR WESTERN
MOBILE AND EASTERN GEORGE COUNTIES...

AT 116 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO. THIS TORNADO WAS LOCATED NEAR 
IRVINGTON...OR NEAR THEODORE...MOVING NORTH AT 40 MPH. THERE HAVE 
BEEN CONFIRMED REPORT OF DAMAGE IN THE LAURENDINE COMMUNITY.

ONE OTHER TORNADO PRODUCING THUNDERSTORM IS LOCATED OVER THE 
MISSISSIPPI SOUND JUST NORTH OF THE WEST END OF DAUPHIN ISLAND AND A 
THIRD POSSIBLE TORNADO PRODUCING THUNDERSTORM BETWEEN GRAND BAY AND 
DIXONS CORNER. AGAIN ALL OF THE THUNDERSTORMS WERE MOVING TO THE 
NORTH AND NORTHWEST AND WILL CONTINUE DOING SO DURING THE NEXT HALF 
HOUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY 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 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3035 8820 3037 8825 3032 8825 3033 8827
      3037 8826 3037 8832 3039 8833 3037 8839
      3039 8840 3073 8842 3074 8849 3097 8856
      3102 8824 3053 8807 3051 8809 3037 8810
      3032 8816 3031 8822
TIME...MOT...LOC 0621Z 168DEG 36KT 3057 8821

$$

377 
WWUS54 KMOB 040650
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
150 AM CDT SUN SEP 4 2011

ALC097-MSC039-040700-
/O.CON.KMOB.TO.W.0096.000000T0000Z-110904T0700Z/
GEORGE MS-MOBILE AL-
150 AM CDT SUN SEP 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 AM CDT FOR WESTERN
MOBILE AND EASTERN GEORGE COUNTIES...

AT 143 AM CDT...NWS DOPPLER RADAR INDICATED SEVERAL THUNDERSTORMS 
CAPABLE OF PRODUCING TORNADOES. THE PRIMARY THREAT AT THE MOMENT WAS 
A STORM JUST NORTH OF THE MOBILE AIRPORT. THIS STORM HAS AN 
INTENSIFYING LOW LEVEL CIRCULATION.  IT WAS MOVING TO THE NORTH AT 
35 MPH.

THIS POTENTIAL TORNADO PRODUCING STORM WILL MOVE TOWARDS 
PRICHARD...MAUVILLA CHUNCHULA AND TURNERSVILLE. THESE STORMS HAVE A 
HISTORY OF PRODUCING DAMAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY 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 700 AM CDT SUNDAY MORNING FOR
SOUTHWEST ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3035 8820 3037 8825 3032 8825 3033 8827
      3037 8826 3037 8832 3039 8833 3037 8839
      3039 8840 3073 8842 3074 8849 3097 8856
      3102 8824 3053 8807 3051 8809 3037 8810
      3032 8816 3031 8822
TIME...MOT...LOC 0647Z 172DEG 28KT 3075 8821

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 7:53 PM CDT	Areal Flood Warning	MOB	George, Greene, Perry, Stone	6 hr
Sep 4, 1:09 AM CDT	Flash Flood Warning	MOB	Stone	3 hr
Sep 4, 3:10 AM CDT	Tornado Warning	MOB	George	50 min
Sep 4, 8:40 AM CDT	Tornado Warning	MOB	Greene, Perry	35 min
Sep 4, 9:14 AM CDT	Tornado Warning	MOB	Perry, Wayne	46 min
Sep 4, 9:54 AM CDT	River Flood Warning	MOB	George, Greene, Wayne	25 hr
Sep 4, 11:13 AM CDT	Tornado Warning	MOB	Perry	62 min
Sep 4, 11:19 AM CDT	Tornado Warning	MOB	Greene, Perry	56 min
Sep 4, 11:41 AM CDT	Tornado Warning	MOB	Greene, Wayne	64 min
Sep 4, 12:19 PM CDT	Tornado Warning	MOB	Greene	56 min
Sep 4, 1:18 PM CDT	Tornado Warning	MOB	Wayne	42 min
Sep 4, 1:22 PM CDT	Flash Flood Warning	MOB	Wayne	3 hr
Sep 4, 1:57 PM CDT	Flash Flood Warning	MOB	George, Greene	3 hr
Sep 4, 2:01 PM CDT	Tornado Warning	MOB	Wayne	59 min
Sep 3, 8:02 PM CDT	Special Marine Warning	MOB		43 min
Sep 3, 8:24 PM CDT	Special Marine Warning	MOB		51 min
Sep 3, 9:11 PM CDT	River Flood Warning	MOB	Covington, Escambia	12 hr
Sep 3, 10:34 PM CDT	Special Marine Warning	MOB		41 min
Sep 3, 11:11 PM CDT	Tornado Warning	MOB	Mobile	64 min
Sep 3, 11:58 PM CDT	Tornado Warning	MOB	Mobile	62 min
Sep 4, 12:13 AM CDT	Special Marine Warning	MOB		2 hr
Sep 4, 1:14 AM CDT	Flash Flood Warning	MOB	Mobile	3 hr
Sep 4, 1:40 AM CDT	Flash Flood Warning	MOB	Mobile	3 hr
Sep 4, 1:59 AM CDT	Tornado Warning	MOB	Mobile	45 min
Sep 4, 2:16 AM CDT	Special Marine Warning	MOB		119 min
Sep 4, 2:46 AM CDT	Tornado Warning	MOB	Baldwin	59 min
Sep 4, 3:16 AM CDT	Special Marine Warning	MOB		119 min
Sep 4, 3:57 AM CDT	Tornado Warning	MOB	Baldwin	42 min
Sep 4, 4:49 AM CDT	Special Marine Warning	MOB		86 min
Sep 4, 5:36 AM CDT	Flash Flood Warning	MOB	Covington, Escambia	3 hr
Sep 4, 5:51 AM CDT	Special Marine Warning	MOB		114 min
Sep 4, 9:42 AM CDT	Special Marine Warning	MOB		33 min
Sep 4, 9:59 AM CDT	River Flood Warning	MOB	Choctaw, Clarke, Washington	4 days
Sep 4, 9:59 AM CDT	River Flood Warning	MOB	Choctaw, Clarke, Washington	5 days
Sep 4, 10:43 AM CDT	Special Marine Warning	MOB		47 min
Sep 4, 10:44 AM CDT	Special Marine Warning	MOB		46 min
Sep 4, 11:29 AM CDT	Special Marine Warning	MOB		46 min
Sep 4, 11:46 AM CDT	Tornado Warning	MOB	Baldwin, Mobile	19 min
Sep 4, 12:12 PM CDT	Tornado Warning	MOB	Washington	63 min
Sep 4, 12:58 PM CDT	Tornado Warning	MOB	Washington	62 min
Sep 4, 1:20 PM CDT	Tornado Warning	MOB	Clarke, Washington	55 min
Sep 4, 4:01 PM CDT	Tornado Warning	MOB	Choctaw, Clarke	59 min
Sep 4, 4:09 PM CDT	Tornado Warning	MOB	Washington	36 min
Sep 4, 4:15 PM CDT	Tornado Warning	MOB	Baldwin, Escambia	60 min
Sep 4, 4:28 PM CDT	Tornado Warning	MOB	Baldwin	49 min

Nearby

Tornado Warnings in Mississippi, 2011 Tornado Warnings in Alabama, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.