Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 149, NWS Mobile, AL

December 22, 2011Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 22, 2011, 11:08 AM CST for Wayne County, Mississippi; Washington County, Alabama. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 22, 2011, 11:08 AM CST (17:08 UTC)
Expired: Dec 22, 2011, 12:00 PM CST
In force: 52 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Washington County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 101 km from the middle of the area, began a volume at 17:10 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 22, 10:00 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.1 hours before the alert went out and 191 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: 46 J/kg
Mixed-layer CIN: -224 J/kg
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

923 
WFUS54 KMOB 221708
TORMOB
ALC129-MSC153-221800-
/O.NEW.KMOB.TO.W.0149.111222T1708Z-111222T1800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1108 AM CST THU DEC 22 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  NORTHWESTERN WASHINGTON COUNTY IN SOUTHWEST ALABAMA...

* UNTIL NOON CST

* AT 1106 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES NORTH
  OF LEAKESVILLE...OR 6 MILES WEST OF FRUITDALE...MOVING NORTHEAST AT
  45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STATE LINE...         MILLRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MANUFACTURED 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 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3170 8809 3166 8808 3165 8809 3164 8809
      3136 8844 3144 8845 3144 8856 3170 8835
TIME...MOT...LOC 1708Z 219DEG 38KT 3137 8850

$$

2 follow-up statements

188 
WWUS54 KMOB 221729
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1129 AM CST THU DEC 22 2011

MSC153-221738-
/O.CAN.KMOB.TO.W.0149.000000T0000Z-111222T1800Z/
WAYNE MS-
1129 AM CST THU DEC 22 2011

...THE TORNADO WARNING FOR SOUTHEASTERN WAYNE COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3170 8809 3166 8808 3165 8809 3164 8809
      3145 8833 3150 8840 3170 8827
TIME...MOT...LOC 1728Z 222DEG 42KT 3154 8833

$$

ALC129-221800-
/O.CON.KMOB.TO.W.0149.000000T0000Z-111222T1800Z/
WASHINGTON AL-
1129 AM CST THU DEC 22 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON CST FOR NORTH
CENTRAL WASHINGTON COUNTY...

AT 1128 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR FITTE...OR 7 
MILES WEST OF CHATOM...MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BARLOW...YARBO...LOPER...CARPENTER...ELLISVILLE...KOENTON...BASHI...
BIGBEE...RESCUEVILLE...FRANKVILLE AND SILVER CROSS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3170 8809 3166 8808 3165 8809 3164 8809
      3145 8833 3150 8840 3170 8827
TIME...MOT...LOC 1728Z 222DEG 42KT 3154 8833

$$

536 
WWUS54 KMOB 221748
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1148 AM CST THU DEC 22 2011

ALC129-221800-
/O.CON.KMOB.TO.W.0149.000000T0000Z-111222T1800Z/
WASHINGTON AL-
1148 AM CST THU DEC 22 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL NOON CST FOR NORTH
CENTRAL WASHINGTON COUNTY...

AT 1147 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR BIGBEE...OR 6
MILES NORTH OF CHATOM...MOVING NORTHEAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FRANKVILLE AND SILVER CROSS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

&&

LAT...LON 3166 8808 3165 8809 3164 8809 3156 8819
      3156 8820 3160 8826 3170 8819 3170 8809
TIME...MOT...LOC 1747Z 232DEG 33KT 3164 8817

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 22, 10:33 AM CST	Tornado Warning	MOB	Greene, Perry	42 min
Dec 22, 5:10 AM CST	Small Craft Advisory	MOB		14 hr
Dec 22, 11:11 AM CST	Special Marine Warning	MOB		49 min
Dec 22, 11:59 AM CST	Tornado Warning	MOB	Clarke	22 min
Dec 22, 12:04 PM CST	Special Marine Warning	MOB		86 min
Dec 22, 12:37 PM CST	Tornado Warning	MOB	Mobile	11 min
Dec 22, 12:57 PM CST	Tornado Warning	MOB	Baldwin	21 min
Dec 22, 1:28 PM CST	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	32 min
Dec 22, 1:34 PM CST	Tornado Warning	MOB	Conecuh, Escambia	26 min
Dec 22, 1:47 PM CST	Severe Thunderstorm Warning	MOB	Butler	13 min
Dec 22, 2:56 PM CST	Tornado Warning	MOB	Crenshaw	19 min
Dec 22, 4:34 PM CST	Special Marine Warning	MOB		41 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.