Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 153, NWS Mobile, AL

December 22, 2011Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 22, 2011, 1:34 PM CST for Conecuh County, Escambia County, Alabama. It was in force for 26 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, 1:34 PM CST (19:34 UTC)
Expired: Dec 22, 2011, 2:00 PM CST
In force: 26 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Conecuh County, AL, Escambia County, AL

The radar

The Mobile radar (KMOB), 126 km from the middle of the area, began a volume at 19:34 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

Birmingham, AL (KBMX), launched 12:00Z, 7.6 hours before the alert went out and 214 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 699 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

974 
WFUS54 KMOB 221934
TORMOB
ALC035-053-222000-
/O.NEW.KMOB.TO.W.0153.111222T1934Z-111222T2000Z/

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  CENTRAL ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 200 PM CST

* AT 134 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  NORTH OF FLOMATON...OR 8 MILES SOUTH OF I65 AND AL 113...MOVING
  NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  I65 AND AL 41 AROUND 150 PM CST...
  I65 AND CR 6 AROUND 155 PM CST...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 77 AND 95.

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 MANUFACTURED 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 500 PM CST THURSDAY AFTERNOON
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

&&

LAT...LON 3147 8701 3132 8686 3104 8733 3110 8738
TIME...MOT...LOC 1934Z 230DEG 36KT 3112 8728

$$

1 follow-up statement

358 
WWUS54 KMOB 221952
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
152 PM CST THU DEC 22 2011

ALC035-053-222000-
/O.CON.KMOB.TO.W.0153.000000T0000Z-111222T2000Z/
CONECUH AL-ESCAMBIA AL-
152 PM CST THU DEC 22 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CST FOR NORTH
CENTRAL ESCAMBIA AND SOUTH CENTRAL CONECUH COUNTIES...

AT 150 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR APPLETON...OR 7
MILES NORTHWEST OF BREWTON...MOVING NORTHEAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  CASTLEBERRY...6 MILES SOUTHWEST OF OLD SPARTA AND 7 MILES SOUTHWEST
  OF NYMPH BY 200 PM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.

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

&&

LAT...LON 3116 8715 3122 8721 3145 8699 3132 8686
TIME...MOT...LOC 1951Z 230DEG 36KT 3123 8713

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 22, 5:10 AM CST	Small Craft Advisory	MOB		14 hr
Dec 22, 11:08 AM CST	Tornado Warning	MOB	Washington	52 min
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, 1:47 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 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.