Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 25, NWS Mobile, AL

April 4, 2011Greene County, Perry County, Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 4, 2011, 7:38 PM CDT for Greene County, Perry County, Wayne County, Mississippi; Washington County, Alabama. It was in force for 56 min. 5 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: Apr 4, 2011, 7:38 PM CDT (00:38 UTC)
Expired: Apr 4, 2011, 8:34 PM CDT
In force: 56 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Washington County, AL, Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 86 km from the middle of the area, began a volume at 00:40 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 4, 7:40 PM CDT	TSTM WND DMG	Ne Richton, MS	TREES DOWN ON HWY 15 JUST NORTH OF RICHTON.
Apr 4, 7:49 PM CDT	TSTM WND DMG	Avera, MS	LOCAL EMA REPORTS PROBABLE STRAIGHT-LINE WIND DAMAGE IN AVERA. PATH LENGTH ESTIMATED TO BE A COUPLE HUNDRED YARDS WIDE AND A COUPLE MILES LONG. DAMAGE TIME ESTIMATED FROM RADAR.
Apr 4, 7:49 PM CDT	TORNADO	Avera, MS	AT 830PM CDT...THE COUNTY EMA RECIEVED INFORMATION FROM LOCAL LAW ENFORCEMENT OF TORNADO DAMAGE INCLUDING TREE AND POWERLINE DAMAGE. SEVERAL CAR ACCIDENTS MAY ALSO BE RELATED.
Apr 4, 7:58 PM CDT	TSTM WND DMG	15 Ne Avera, MS	NEAR THE TOWN OF OLD AVERA...EMA REPORTS A LARGE STAND OF PINE TREES WERE BROKEN COMPLETELY IN HALF. EMA ADDS THAT DAMAGE WAS MORE THAN A 100 YARDS WIDE...AND THAT THE DAMAGE COULD HAVE POSSIBLY BEEN FROM A TORNADO.
Apr 4, 7:58 PM CDT	TSTM WND DMG	Jonathan, MS	A METAL PORCH AWNING WAS DESTROYED IN JONATHAN.

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 4, 5:28 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.6 hours before the alert went out and 169 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: 3275 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 562 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 245 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 4.7
Supercell composite: 20.4

Open this sounding in Storm Lab

The text

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

436 
WFUS54 KMOB 050038
TORMOB
ALC129-MSC041-111-153-050145-
/O.NEW.KMOB.TO.W.0025.110405T0038Z-110405T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
738 PM CDT MON APR 4 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHEASTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF RICHTON...
  SOUTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  WESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 845 PM CDT

* AT 735 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR RICHTON...
  OR 9 MILES NORTHEAST OF NEW AUGUSTA...MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  STATE LINE AROUND 820 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS TO 70 MPH.

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 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3169 8834 3130 8819 3122 8844 3119 8893
      3134 8904
TIME...MOT...LOC 0038Z 256DEG 33KT 3131 8890

$$

5 follow-up statements

264 
WWUS54 KMOB 050052
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
752 PM CDT MON APR 4 2011

ALC129-MSC041-111-153-050145-
/O.CON.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
WASHINGTON AL-PERRY MS-GREENE MS-WAYNE MS-
752 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN WAYNE...NORTHERN GREENE...NORTHEASTERN PERRY AND WESTERN
WASHINGTON COUNTIES...

AT 744 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS NEAR BREWER...OR ABOUT 6 MILES EAST OF RICHTON...MOVING
EAST AT 50 MPH.

THE TORNADO WILL BE NEAR...
  BOTHWELL AND PIAVE AROUND 755 PM CDT...
  OLD AVERA AND KITTRELL AROUND 810 PM CDT...
  KNOBTOWN AROUND 815 PM CDT...
  STATE LINE AND ERET AROUND 820 PM CDT...
  YELLOW PINE AND FRUITDALE AROUND 825 PM CDT...

A SECOND THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS NEAR 
BUCKATUNNA MISSISSIPPI AND WILL ALSO MOVE EAST AT 50 MPH. THIS STORM 
WILL MOVE INTO NORTHWEST WASHINGTON COUNTY VERY SOON PASSING NEAR 
COPELAND AND LOPER ALABAMA.  A SEPARATE TORNADO WARNING WILL SOON BE 
ISSUED FOR THIS THUNDERSTORM. 

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.

IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR
OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO
SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING...
SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZED HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3119 8889 3141 8889 3169 8834 3130 8819
      3122 8844
TIME...MOT...LOC 0049Z 256DEG 33KT 3133 8879

$$

768 
WWUS54 KMOB 050056
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
756 PM CDT MON APR 4 2011

MSC111-050106-
/O.CAN.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
PERRY MS-
756 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR NORTHEASTERN PERRY COUNTY IS CANCELLED...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZED HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3121 8877 3143 8876 3169 8834 3130 8819
      3122 8844
TIME...MOT...LOC 0056Z 259DEG 46KT 3133 8863

$$

ALC129-MSC041-153-050145-
/O.CON.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
WASHINGTON AL-GREENE MS-WAYNE MS-
756 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN WAYNE...NORTHERN GREENE AND WESTERN WASHINGTON
COUNTIES...

AT 749 PM CDT.... THIS TORNADO WAS NEAR AVERA...OR ABOUT 13 MILES
EAST OF RICHTON...MOVING EAST AT 55 MPH.

THE TORNADO WILL BE NEAR...
  KITTRELL AROUND 800 PM CDT...
  KNOBTOWN AND STATE LINE AROUND 805 PM CDT...
  FRUITDALE...YELLOW PINE...ESCATAWPA AND ERET AROUND 810 PM CDT...
  FOUR POINT AND VINEGAR BEND AROUND 815 PM CDT...
  TIBBIE AROUND 820 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.

IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR
OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO
SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING...
SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3121 8877 3143 8876 3169 8834 3130 8819
      3122 8844
TIME...MOT...LOC 0056Z 259DEG 46KT 3133 8863

$$

907 
WWUS54 KMOB 050104
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
804 PM CDT MON APR 4 2011

ALC129-MSC041-153-050145-
/O.CON.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
WASHINGTON AL-GREENE MS-WAYNE MS-
804 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN WAYNE...NORTHEASTERN GREENE AND WESTERN WASHINGTON
COUNTIES...

AT 803 PM CDT.... THIS TORNADO WAS NEAR OLD AVERA...OR ABOUT 12 MILES
NORTH OF LEAKESVILLE...MOVING EAST AT 55 MPH.

THE TORNADO WILL BE NEAR...
  FRUITDALE...YELLOW PINE AND ESCATAWPA AROUND 810 PM CDT...
  FOUR POINT AND VINEGAR BEND AROUND 815 PM CDT...
  TIBBIE AROUND 820 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.

IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR
OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO
SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING...
SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND 70 MPH DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3122 8862 3148 8868 3169 8834 3130 8819
      3122 8844
TIME...MOT...LOC 0104Z 259DEG 46KT 3133 8851

$$

998 
WWUS54 KMOB 050118
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
818 PM CDT MON APR 4 2011

MSC041-153-050127-
/O.CAN.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
GREENE MS-WAYNE MS-
818 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR SOUTHEASTERN WAYNE AND NORTHEASTERN GREENE
COUNTIES IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3150 8844 3150 8828 3130 8819 3130 8820
      3122 8843
TIME...MOT...LOC 0117Z 268DEG 49KT 3132 8830

$$

ALC129-050145-
/O.CON.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
WASHINGTON AL-
818 PM CDT MON APR 4 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR WEST
CENTRAL WASHINGTON COUNTY...

AT 812 PM CDT.... THIS TORNADO WAS NEAR FOUR POINT...OR ABOUT 13
MILES SOUTHWEST OF CHATOM...MOVING EAST AT 55 MPH.

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.

IF YOU ARE IN MOBILE HOME...EVACUATE IT AND GET ON THE LOWEST FLOOR
OF A NEARBY STURDY BUILDING OR IN AN UNDERGROUND STORM SHELTER. IF NO
SUBSTANTIAL SHELTER IS AVAILABLE AND A TORNADO IS FAST APPROACHING...
SEEK SHELTER IN A CULVERT...OR LIE FLAT IN THE NEAREST DITCH OR OTHER
LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3150 8844 3150 8828 3130 8819 3130 8820
      3122 8843
TIME...MOT...LOC 0117Z 268DEG 49KT 3132 8830

$$

286 
WWUS54 KMOB 050134
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
834 PM CDT MON APR 4 2011

ALC129-050143-
/O.CAN.KMOB.TO.W.0025.000000T0000Z-110405T0145Z/
WASHINGTON AL-
834 PM CDT MON APR 4 2011

...THE TORNADO WARNING FOR WEST CENTRAL WASHINGTON COUNTY IS
CANCELLED...

ANOTHER TORNADO WARNING IS STILL CURRRENTLY IN EFFECT FOR EASTERN 
WASHINGTON COUNTY ALABAMA. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3150 8844 3150 8828 3130 8819 3130 8820
      3122 8843
TIME...MOT...LOC 0133Z 180DEG 0KT 3132 8838

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:08 PM CDT	Tornado Warning	MOB	Wayne	67 min
Apr 4, 7:30 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene, Perry, Stone, Wayne	60 min
Apr 4, 8:30 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	60 min
Apr 4, 7:05 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	55 min
Apr 4, 7:54 PM CDT	Tornado Warning	MOB	Choctaw, Clarke, Washington	53 min
Apr 4, 8:21 PM CDT	Tornado Warning	MOB	Clarke, Monroe, Washington	39 min
Apr 4, 9:41 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia	64 min
Apr 4, 9:44 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Covington, Escambia	61 min
Apr 4, 9:47 PM CDT	Special Marine Warning	MOB		88 min
Apr 4, 10:46 PM CDT	Severe Thunderstorm Warning	MOB	Covington	44 min
Apr 4, 11:36 PM CDT	Special Marine Warning	MOB		84 min
Apr 5, 5:09 AM CDT	Fire Weather Watch	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia, Monroe and 1 more	25 hr

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.