Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 30, NWS Mobile, AL

April 15, 2011Wayne County, Mississippi

NWS Mobile, AL issued this tornado warning at Apr 15, 2011, 10:15 AM CDT for Wayne County, Mississippi. It was in force for 45 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, 10:15 AM CDT (15:15 UTC)
Expired: Apr 15, 2011, 11:00 AM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Wayne County, MS

The radar

The Mobile radar (KMOB), 127 km from the middle of the area, began a volume at 15:14 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, 10:20 AM CDT	TORNADO	2 N Strengthford, MS	TORNADO REPORTED BY EMA NORTH OF STRENGTHFORD NEAR THE WHISTLER AREA.

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, 7:32 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.3 hours before the alert went out and 144 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: 1458 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 382 m²/s²
0-3 km storm-relative helicity: 565 m²/s²
Significant tornado parameter: 4.0
Supercell composite: 14.6

Open this sounding in Storm Lab

The text

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

710 
WFUS54 KMOB 151515
TORMOB
MSC153-151600-
/O.NEW.KMOB.TO.W.0030.110415T1515Z-110415T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1015 AM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WAYNESBORO...

* UNTIL 1100 AM CDT

* AT 1014 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES WEST OF
  WAYNESBORO...OR 13 MILES SOUTHEAST OF SANDERSVILLE...MOVING
  NORTHEAST AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  WAYNESBORO AROUND 1035 AM 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 300 PM CDT FRIDAY AFTERNOON
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3175 8893 3188 8854 3189 8848 3163 8847
      3158 8891
TIME...MOT...LOC 1515Z 233DEG 29KT 3167 8887

$$

1 follow-up statement

604 
WWUS54 KMOB 151523
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1023 AM CDT FRI APR 15 2011

MSC153-151600-
/O.CON.KMOB.TO.W.0030.000000T0000Z-110415T1600Z/
WAYNE MS-
1023 AM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR NORTHERN
WAYNE COUNTY...

AT 1019 AM CDT...COUNTY EMERGENCY MANAGEMENT REPORTED A TORNADO. 
THIS TORNADO WAS NEAR WHISTLER...OR ABOUT 12 MILES WEST OF 
WAYNESBORO...MOVING NORTHEAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  WEST KING...WOODWARDS AND WAYNESBORO AROUND 1035 AM CDT...
  HIWANNEE AND BOICE AROUND 1040 AM CDT...
  GRETNA AROUND 1055 AM 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 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 PM CDT FRIDAY AFTERNOON
FOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3162 8889 3176 8891 3188 8854 3189 8848
      3169 8847
TIME...MOT...LOC 1523Z 233DEG 29KT 3171 8881

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 10:34 AM CDT	Tornado Warning	MOB	Greene, Perry	41 min
Apr 15, 10:56 AM CDT	Tornado Warning	MOB	Wayne	49 min
Apr 15, 11:09 AM CDT	Tornado Warning	MOB	Greene, Wayne	51 min
Apr 15, 11:35 AM CDT	Tornado Warning	MOB	Wayne	40 min
Apr 15, 2:06 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	39 min
Apr 15, 5:59 PM CDT	Tornado Warning	MOB	Wayne	61 min
Apr 15, 6:38 PM CDT	Tornado Warning	MOB	Greene, Perry	37 min
Apr 15, 6:44 PM CDT	Tornado Warning	MOB	Wayne	61 min
Apr 15, 6:49 PM CDT	Tornado Warning	MOB	Greene, Perry	41 min

Nearby

Tornado Warnings in Mississippi, 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.