Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 78, NWS Mobile, AL

April 15, 20115 counties in Alabama

NWS Mobile, AL issued this tornado warning at Apr 15, 2011, 10:05 PM CDT for 5 counties in Alabama. It was in force for 55 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: Apr 15, 2011, 10:05 PM CDT (03:05 UTC)
Expired: Apr 15, 2011, 11:00 PM CDT
In force: 55 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Baldwin County, AL, Clarke County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 58 km from the middle of the area, began a volume at 03:07 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
Apr 15, 10:07 PM CDT	TORNADO	Citronelle, AL	MOBILE EMA REPORTS ROOFS OFF HOMES AND MOBILE HOMES DAMAGED. LARGE TREES AND POWER LINES DOWN ACROSS ROADS. NO KNOWN INURIES AT THIS TIME.

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
Apr 15, 7:48 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.1 hours before the alert went out and 190 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: 2774 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 697 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 267 m²/s²
0-3 km storm-relative helicity: 318 m²/s²
Significant tornado parameter: 5.3
Supercell composite: 18.2

Open this sounding in Storm Lab

The text

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

485 
WFUS54 KMOB 160305
TORMOB
ALC003-025-097-099-129-160400-
/O.NEW.KMOB.TO.W.0078.110416T0305Z-110416T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1005 PM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN MONROE COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  SOUTH CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA...
  NORTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF CITRONELLE...
  SOUTHEASTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 1100 PM CDT

* AT 1003 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  CITRONELLE...OR 10 MILES WEST OF PINEOLA...MOVING EAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  PINEOLA AROUND 1015 PM CDT...
  MOUNT VERNON AROUND 1020 PM CDT...
  MCINTOSH AROUND 1025 PM CDT...
  MT PLEASANT AROUND 1045 PM CDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 40 AND 47.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3098 8837 3118 8836 3132 8809 3140 8784
      3139 8760 3097 8761
TIME...MOT...LOC 0306Z 257DEG 44KT 3110 8824

$$

4 follow-up statements

329 
WWUS54 KMOB 160315
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1015 PM CDT FRI APR 15 2011

ALC003-025-097-099-129-160400-
/O.CON.KMOB.TO.W.0078.000000T0000Z-110416T0400Z/
WASHINGTON AL-MONROE AL-CLARKE AL-BALDWIN AL-MOBILE AL-
1015 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN MOBILE...NORTHWESTERN BALDWIN...SOUTH CENTRAL CLARKE...
SOUTHWESTERN MONROE AND SOUTHEASTERN WASHINGTON COUNTIES...

AT 1012 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
TORNADO WAS 2 MILES NORTHEAST OF CITRONELLE...MOVING EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  FAIRFORD...MOUNT VERNON AND MOVICO AROUND 1020 PM CDT...
  CALVERT...MALCOLM AND FORT STODDARD AROUND 1025 PM CDT...
  TENSAW AROUND 1035 PM CDT...
  BLACKSHER AROUND 1040 PM CDT...
  LITTLE RIVER AROUND 1045 PM CDT...
  SERANGE AROUND 1050 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3106 8819 3119 8820 3131 8807 3140 8784
      3139 8760 3125 8760 3125 8761 3097 8761
TIME...MOT...LOC 0313Z 257DEG 44KT 3112 8814

$$

041 
WWUS54 KMOB 160327
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1027 PM CDT FRI APR 15 2011

ALC003-025-097-099-129-160400-
/O.CON.KMOB.TO.W.0078.000000T0000Z-110416T0400Z/
WASHINGTON AL-MONROE AL-CLARKE AL-BALDWIN AL-MOBILE AL-
1027 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN MOBILE...NORTHWESTERN BALDWIN...SOUTH CENTRAL CLARKE...
SOUTHWESTERN MONROE AND SOUTHEASTERN WASHINGTON COUNTIES...

AT 1026 PM CDT.... THIS TORNADO WAS NEAR CALVERT...OR ABOUT 15 MILES
EAST OF CITRONELLE...MOVING EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  LATHAM AROUND 1035 PM CDT...
  TENSAW AROUND 1040 PM CDT...
  BLACKSHER AROUND 1045 PM CDT...
  SERANGE...LITTLE RIVER...REDTOWN AND LOTTIE AROUND 1050 PM CDT...
  MINEOLA AROUND 1055 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3106 8819 3116 8810 3130 8807 3140 8784
      3139 8760 3125 8760 3125 8761 3097 8761
TIME...MOT...LOC 0327Z 257DEG 44KT 3115 8798

$$

095 
WWUS54 KMOB 160339
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1039 PM CDT FRI APR 15 2011

ALC025-097-099-129-160347-
/O.CAN.KMOB.TO.W.0078.000000T0000Z-110416T0400Z/
WASHINGTON AL-MONROE AL-CLARKE AL-MOBILE AL-
1039 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR NORTHEASTERN MOBILE...SOUTH CENTRAL
CLARKE...SOUTHWESTERN MONROE AND SOUTHEASTERN WASHINGTON COUNTIES IS
CANCELLED...

ANOTHER TORNADO WARNING IS CURRENTLY IN EFFECT FOR YET A SECOND 
TORNADO FOLLOWING CLOSELY BEHIND THE THUNDERSTORM THAT PROMPTED THE 
FIRST TORNADO WARNING. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3106 8794 3113 8794 3119 8790 3122 8781
      3125 8768 3125 8761 3097 8761
TIME...MOT...LOC 0337Z 273DEG 35KT 3112 8789

$$

ALC003-160400-
/O.CON.KMOB.TO.W.0078.000000T0000Z-110416T0400Z/
BALDWIN AL-
1039 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHWESTERN BALDWIN COUNTY...

AT 1035 PM CDT.... THIS TORNADO WAS NEAR LATHAM...OR ABOUT 17 MILES
NORTH OF CREOLA...MOVING EAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  TENSAW AROUND 1045 PM CDT...
  RABUN AND BLACKSHER AROUND 1050 PM CDT...
  REDTOWN AROUND 1055 PM CDT...
  LOTTIE...I65 AND CR 47...PERDIDO AND SERANGE AROUND 1100 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3106 8794 3113 8794 3119 8790 3122 8781
      3125 8768 3125 8761 3097 8761
TIME...MOT...LOC 0337Z 273DEG 35KT 3112 8789

$$

874 
WWUS54 KMOB 160346
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1046 PM CDT FRI APR 15 2011

ALC003-160400-
/O.CON.KMOB.TO.W.0078.000000T0000Z-110416T0400Z/
BALDWIN AL-
1046 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR NORTH
CENTRAL BALDWIN COUNTY...

AT 1040 PM CDT.... THIS TORNADO WAS NORTH OF  LATHAM...MOVING EAST 
AT 35 TO 40 MPH.

THE TORNADO WILL BE NEAR...
  TENSAW AROUND 1050 PM CDT...
  RABUN AND BLACKSHER AROUND 1055 PM CDT...
  REDTOWN...LOTTIE...I65 AND CR 47 AND SERANGE AROUND 1100 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A ROOM SUCH AS
A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY
AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3107 8789 3113 8791 3118 8789 3121 8780
      3125 8761 3098 8761 3097 8762
TIME...MOT...LOC 0345Z 270DEG 30KT 3112 8783

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 7:14 PM CDT	Tornado Warning	MOB	Washington	36 min
Apr 15, 7:24 PM CDT	Tornado Warning Emergency	MOB	Mobile, Washington	51 min
Apr 15, 7:36 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	39 min
Apr 15, 7:39 PM CDT	Tornado Warning	MOB	Clarke, Monroe, Wilcox	29 min
Apr 15, 7:54 PM CDT	Tornado Warning	MOB	Clarke, Monroe, Wilcox	51 min
Apr 15, 8:11 PM CDT	Tornado Warning Emergency	MOB	Washington	49 min
Apr 15, 8:28 PM CDT	Tornado Warning	MOB	Washington	47 min
Apr 15, 8:50 PM CDT	Tornado Warning	MOB	Baldwin, Clarke, Escambia, Mobile, Monroe, Washington	55 min
Apr 15, 9:15 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Mobile, Washington	45 min
Apr 15, 9:18 PM CDT	Flash Flood Warning	MOB	Washington	117 min
Apr 15, 9:38 PM CDT	Tornado Warning	MOB	Conecuh, Monroe	52 min
Apr 15, 9:41 PM CDT	Tornado Warning	MOB	Clarke, Washington	49 min
Apr 15, 9:59 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	61 min
Apr 15, 10:24 PM CDT	Tornado Warning	MOB	Butler, Clarke, Conecuh, Monroe, Wilcox	51 min
Apr 15, 10:32 PM CDT	Tornado Warning	MOB	Baldwin, Mobile	33 min
Apr 15, 10:56 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Conecuh, Escambia, Mobile, Monroe	64 min
Apr 15, 10:59 PM CDT	Tornado Warning	MOB	Baldwin, Conecuh, Escambia, Monroe	61 min
Apr 15, 11:10 PM CDT	Tornado Warning	MOB	Butler, Crenshaw	16 min
Apr 15, 11:33 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	42 min
Apr 15, 11:45 PM CDT	Tornado Warning	MOB	Conecuh, Covington, Escambia	60 min
Apr 16, 12:00 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw	60 min
Apr 16, 12:11 AM CDT	Severe Thunderstorm Warning	MOB	Crenshaw	32 min
Apr 16, 12:38 AM CDT	Tornado Warning	MOB	Covington	52 min
Apr 16, 1:01 AM CDT	Severe Thunderstorm Warning	MOB	Covington	33 min

Nearby

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.