Alert archive / Alabama / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 24, NWS Mobile, AL

March 9, 2011Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 9, 2011, 7:52 AM CST for Baldwin County, Mobile County, Alabama. It was in force for 83 min. 8 reports 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: Mar 9, 2011, 7:52 AM CST (13:52 UTC)
Expired: Mar 9, 2011, 9:15 AM CST
In force: 83 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 34 km from the middle of the area, began a volume at 13:53 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
Mar 9, 8:30 AM CST	TORNADO 1	5 Nnw Grand Bay, AL	13550 FRED FREEDLAND RD....BARN DESTROYED...HORSES WITH MINOR INJURIES...MULTIPLE TREES/POWER LINES DOWN...DOUBLE WIDE HOME OFF FOUNDATION.
Mar 9, 8:38 AM CST	TORNADO	Theodore, AL	NEAR INTERSECTION OF THEODORE DAWES RD. AND OLD PASCAGOULA RD...CANOPY RIPPED OFF BP STATION...SEVERE DAMAGE TO HARDWARE STORE...DAMAGE TO POPEYES RESTAURANT...HOUSE DAMAGED...U-HAUL TRUCK FLIPPED INTO DITCH...MOBILE HOMES FLIPPED OVER...TREES DOWN...TOPS RIPP
Mar 9, 8:38 AM CST	TORNADO	Tillmans Corner, AL	CONFIRMED TORNADO NEAR TILLMANS CORNER AFFECTING OLD PASCAGOULA ROAD AND THEODORE DAWES ROAD. BP STATION AWNING/ROOF DAMAGED. TREES DOWN.
Mar 9, 8:39 AM CST	TORNADO 2	Theodore, AL	NEAR INTERSECTION OF THEODORE DAWES RD. AND OLD PASCAGOULA RD...CANOPY RIPPED OFF BP STATION...SEVERE DAMAGE TO HARDWARE STORE...DAMAGE TO POPEYES RESTAURANT...HOUSE DAMAGED...U-HAUL TRUCK FLIPPED INTO DITCH...MOBILE HOMES FLIPPED OVER...TREES DOWN...TOPS RIPP
Mar 9, 8:40 AM CST	TORNADO	Theodore, AL	PUBLIC REPORT OF TORNADO NEAR SCHILLINGER AND THEODORE DAWES RD. CLEAR VORTEX CONTAINING TREE LIMBS AND BUSHES.
Mar 9, 8:48 AM CST	TSTM WND DMG	5 Nnw Grand Bay, AL	13550 FRED FREEDLAND RD....BARN DESTROYED...HORSES WITH MINOR INJURIES...MULTIPLE TREES/POWER LINES DOWN...DOUBLE WIDE HOME OFF FOUNDATION.
Mar 9, 9:15 AM CST	TORNADO 2	Silverhill, AL	* 1 INJ * SEVERAL HOMES EXPERIECNED SEVERE ROOF DAMAGE. A UTILITY TRAILER WAS CARRIED 50 TO 80 YARDS. A TRUCK THAT WAS BACKING OUT OF THE POST OFFICE PARKING LOT WAS PICKED UP AND FLIPPED INTO THE GRASS AREA IN FRONT OF THE POST OFFICE. THE DRIVER ONLY SUF
Mar 9, 9:21 AM CST	TORNADO	1 S Robertsdale, AL	DEBRIS SPOTTED SWIRLING IN THE AIR BY A MEMBER OF THE FIRE DEPARTMENT.

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
Mar 9, 2:39 AM CST	Tornado Watch	SPC	5 hr
Mar 9, 7:26 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.9 hours before the alert went out and 154 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: 1220 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 456 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 499 m²/s²
0-3 km storm-relative helicity: 571 m²/s²
Significant tornado parameter: 4.3
Supercell composite: 19.4

Open this sounding in Storm Lab

The text

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

804 
WUUS54 KMOB 091352
SVRMOB
ALC003-097-091515-
/O.NEW.KMOB.SV.W.0024.110309T1352Z-110309T1515Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
752 AM CST WED MAR 9 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...GULF SHORES...SPANISH FORT...
  ROBERTSDALE...POINT CLEAR...LOXLEY...FOLEY...FAIRHOPE...DAPHNE...
  SOUTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...TILLMANS CORNER...THEODORE...
  PRICHARD...GRAND BAY...DOWNTOWN MOBILE...DAUPHIN ISLAND...
  CHICKASAW...BAYOU LA BATRE...

* UNTIL 915 AM CST

* AT 748 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 16 MILES NORTH OF ST. MARTIN TO ST. MARTIN TO 10 MILES SOUTH  
  OF BILOXI TO 16 MILES SOUTH OF LONG BEACH...AND MOVING EAST AT 50  
  MPH.

  THIS LINE HAS A HISTORY OF PRODUCING WIND DAMAGE.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  GRAND BAY AROUND 825 AM CST...
  HUTCHENS ELEMENTAR AROUND 830 AM CST...
  TILLMANS CORNER...SNOW AND TANNER WI...SNOW AND TANNER WILLIAMS AND
  SCHILLINGER AROUND 835 AM CST...
  WEST END OF DAUPHIN...I10 AND I65...UNIVERSITY OF SOUTH AND
  THEODORE AROUND 840 AM CST...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 1 AND 52.

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 1 AND 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CST WEDNESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3022 8839 3077 8842 3083 8764 3027 8759
      3023 8803 3029 8776 3042 8792 3064 8793
      3067 8800 3058 8808 3031 8813 3025 8806
      3022 8831 3024 8832 3029 8812 3036 8820
      3033 8826 3038 8825 3039 8836
TIME...MOT...LOC 1350Z 255DEG 45KT 3067 8881 3058 8889
          3046 8883 3028 8887 3014 8907

$$

2 follow-up statements

066 
WWUS54 KMOB 091456
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
856 AM CST WED MAR 9 2011

ALC097-091504-
/O.CAN.KMOB.SV.W.0024.000000T0000Z-110309T1515Z/
MOBILE AL-
856 AM CST WED MAR 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MOBILE COUNTY IS
CANCELLED...

THE TORNADO HAS SINCE MOVED EAST NORTHEAST OVER WESTERN MOBILE BAY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3025 8793 3025 8785 3027 8778 3029 8776
      3042 8792 3057 8791 3064 8793 3066 8794
      3066 8796 3068 8800 3080 8802 3083 8765
      3027 8759 3023 8802 3023 8803
TIME...MOT...LOC 1454Z 255DEG 45KT 3088 8791 3079 8799
          3067 8793 3049 8797 3035 8817

$$

ALC003-091515-
/O.CON.KMOB.SV.W.0024.000000T0000Z-110309T1515Z/
BALDWIN AL-
856 AM CST WED MAR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 AM CST
FOR SOUTHWESTERN BALDWIN COUNTY...

AT 849 AM CST...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE
A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS 
OVER 60 MPH.  THESE STORMS WERE ALONG A LINE OVER WESTERN MOBILE 
BAY....MOVING EAST AT 50 MPH.

THE TORNADO IS MOVING NORTHEAST TOWARDS THE EASTERN SHORE OF BALDWIN 
COUNTY.

SEVERE THUNDERSTORMS WILL BE NEAR...
  BROMLEY...BELFOREST...POINT CLEAR AND MONTROSE AROUND 900 AM CST...
  PINE HAVEN...WHITEHOUSE FORKS...STEELWOOD AND STAPLETON AROUND 905
  AM CST...
  VANGORDON AND SILVERHILL AROUND 910 AM CST...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3025 8793 3025 8785 3027 8778 3029 8776
      3042 8792 3057 8791 3064 8793 3066 8794
      3066 8796 3068 8800 3080 8802 3083 8765
      3027 8759 3023 8802 3023 8803
TIME...MOT...LOC 1454Z 255DEG 45KT 3088 8791 3079 8799
          3067 8793 3049 8797 3035 8817

$$

997 
WWUS54 KMOB 091507
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
907 AM CST WED MAR 9 2011

ALC003-091515-
/O.CON.KMOB.SV.W.0024.000000T0000Z-110309T1515Z/
BALDWIN AL-
907 AM CST WED MAR 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 AM CST
FOR SOUTHWESTERN BALDWIN COUNTY...

AT 903 AM CST...NWS DOPPLER WEATHER RADAR INDICATED A TORNADIC 
CIRCULATION PRODUCING DAMAGING WINDS OVER 60 MPH. THIS STORM WAS 
COMING ON SHORE NEAR NEAR DAPHNE...MOVING EAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLAKELEY PARK AROUND 910 AM CST...
  LOXLEY...STEELWOOD...PINE HAVEN AND SILVERHILL AROUND 915 AM CST...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY ON THE LOWEST
FLOOR OF A STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR A
ROOM SUCH AS A CLOSET OR BATHROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3025 8793 3025 8785 3027 8778 3029 8776
      3042 8792 3057 8791 3064 8793 3066 8794
      3066 8796 3068 8800 3080 8802 3083 8765
      3027 8759 3023 8802 3023 8803
TIME...MOT...LOC 1506Z 253DEG 33KT 3060 8793

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 7:11 PM CST	Severe Thunderstorm Warning	MOB	Mobile, Washington	34 min
Mar 8, 8:23 PM CST	Severe Thunderstorm Warning	MOB	Washington	37 min
Mar 8, 9:04 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington	41 min
Mar 8, 9:44 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Washington, Wilcox	46 min
Mar 9, 1:32 AM CST	Flash Flood Warning	MOB	Choctaw	118 min
Mar 9, 4:20 AM CST	Flash Flood Warning	MOB	Choctaw	6 hr
Mar 9, 4:22 AM CST	Severe Thunderstorm Warning	MOB	Choctaw	38 min
Mar 9, 4:32 AM CST	Tornado Warning	MOB	Choctaw	33 min
Mar 9, 5:07 AM CST	Flash Flood Warning	MOB	Choctaw	6 hr
Mar 9, 5:40 AM CST	Tornado Warning	MOB	Choctaw, Clarke	33 min
Mar 9, 5:51 AM CST	Flash Flood Warning	MOB	Clarke, Washington, Wilcox	6 hr
Mar 9, 6:37 AM CST	Tornado Warning	MOB	Washington	17 min
Mar 9, 7:08 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile, Washington	52 min
Mar 9, 7:26 AM CST	Flash Flood Warning	MOB	Baldwin, Clarke, Mobile, Washington	6 hr
Mar 9, 7:33 AM CST	Flash Flood Warning	MOB	Monroe	6 hr
Mar 9, 7:54 AM CST	Special Marine Warning	MOB		81 min
Mar 9, 8:01 AM CST	Tornado Warning	MOB	Baldwin, Mobile	44 min
Mar 9, 8:14 AM CST	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	61 min
Mar 9, 8:27 AM CST	Tornado Warning	MOB	Baldwin, Mobile	63 min
Mar 9, 8:35 AM CST	Tornado Warning	MOB	Conecuh, Covington, Escambia	40 min
Mar 9, 8:41 AM CST	Flash Flood Warning	MOB	Baldwin, Mobile	4 hr
Mar 9, 8:48 AM CST	Flash Flood Warning	MOB	Conecuh, Escambia	5 hr
Mar 9, 8:50 AM CST	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw	40 min
Mar 9, 9:02 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	58 min
Mar 9, 9:10 AM CST	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia	65 min
Mar 9, 9:10 AM CST	Tornado Warning	MOB	Baldwin	50 min
Mar 9, 9:16 AM CST	Tornado Warning	MOB	Baldwin	44 min
Mar 9, 9:16 AM CST	Tornado Warning	MOB	Covington	59 min
Mar 9, 9:19 AM CST	Special Marine Warning	MOB		116 min
Mar 9, 9:23 AM CST	Special Marine Warning	MOB		97 min
Mar 9, 9:25 AM CST	Flash Flood Warning	MOB	Baldwin	6 hr
Mar 9, 9:26 AM CST	Tornado Warning	MOB	Baldwin, Escambia	49 min
Mar 9, 9:26 AM CST	Tornado Warning	MOB	Covington, Crenshaw	26 min
Mar 9, 9:36 AM CST	Flash Flood Warning	MOB	Conecuh, Covington, Escambia	114 min
Mar 9, 9:40 AM CST	Tornado Warning	MOB	Baldwin	50 min
Mar 9, 9:44 AM CST	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Crenshaw	4 hr
Mar 9, 9:54 AM CST	Tornado Warning	MOB	Covington	25 min
Mar 9, 10:09 AM CST	Severe Thunderstorm Warning	MOB	Covington	66 min
Mar 9, 10:22 AM CST	Areal Flood Warning	MOB	Choctaw	5 hr
Mar 9, 10:55 AM CST	Special Marine Warning	MOB		80 min
Mar 9, 11:00 AM CST	Areal Flood Warning	MOB	Choctaw	5 hr
Mar 9, 11:14 AM CST	Tornado Warning	MOB	Baldwin	61 min
Mar 9, 11:30 AM CST	River Flood Warning	MOB	Clarke, Monroe, Wilcox	10 days
Mar 9, 11:54 AM CST	Areal Flood Advisory	MOB	Conecuh, Covington, Escambia	111 min
Mar 9, 11:58 AM CST	Special Marine Warning	MOB		2 hr
Mar 9, 12:00 PM CST	Areal Flood Warning	MOB	Clarke, Washington, Wilcox	4 hr
Mar 9, 2:02 PM CST	Special Marine Warning	MOB		58 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2011 Every severe thunderstorm warning 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.