Alert archive / Alabama / Tornado Warnings in 2006

Tornado Warning 15, NWS Mobile, AL

March 20, 2006Clarke County, Washington County, Alabama; Greene County, Mississippi

NWS Mobile, AL issued this tornado warning at Mar 20, 2006, 5:11 PM CST for Clarke County, Washington County, Alabama; Greene County, Mississippi. It was in force for 34 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: Mar 20, 2006, 5:11 PM CST (23:11 UTC)
Expired: Mar 20, 2006, 5:45 PM CST
In force: 34 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Clarke County, AL, Washington County, AL, Greene County, MS

The radar

The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 23:11 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
Mar 20, 3:09 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.2 hours before the alert went out and 196 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: 301 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 265 m²/s²
0-3 km storm-relative helicity: 515 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 202311
TORMOB
ALC025-129-MSC041-202345-
/O.NEW.KMOB.TO.W.0015.060320T2311Z-060320T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
511 PM CST MON MAR 20 2006

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...

  WASHINGTON COUNTY IN SOUTHWEST ALABAMA
  CLARKE COUNTY IN SOUTHWEST ALABAMA
  GREENE COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 545 PM CST

* AT 507 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO FROM 5
  MILES NORTHEAST OF FRANKVILLE TO 16 MILES NORTHWEST OF
  ROUNSAVILLE...AND MOVING SOUTHEAST AT 45 MPH.

* TORNADO PRODUCING STORMS ARE EXPECTED TO BE NEAR...
  ST STEPHENS BY 520 PM CST
  VINEGAR BEND AND TIBBIE BY 525 PM CST
  ROUNSAVILLE AND WAGARVILLE BY 530 PM CST
  WALKER SPRINGS AND TOPTON BY 535 PM CST

IF YOU ARE IN THE PATH OF THESE DANGEROUS STORMS...ABANDON VEHICLES
AND MOBILE HOMES AND SEEK A REINFORCED SHELTER. MOVE TO THE LOWEST
FLOOR INTERIOR HALLWAY OR CLOSET. COVER YOUR BODY WITH BLANKETS OR
PILLOWS.

IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST MONDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3170 8813 3128 8873 3112 8839 3118 8798
      3151 8762

$$

1 follow-up statement

000 
WWUS54 KMOB 202344
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
544 PM CST MON MAR 20 2006

ALC025-129-MSC041-202354-
/O.EXP.KMOB.TO.W.0015.000000T0000Z-060320T2345Z/
WASHINGTON AL-CLARKE AL-GREENE MS-
544 PM CST MON MAR 20 2006

...THE TORNADO WARNING FOR NORTHEASTERN GREENE...SOUTHERN CLARKE AND
WASHINGTON COUNTIES EXPIRES AT 545 PM CST...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST MONDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3170 8813 3128 8873 3112 8839 3118 8798
      3151 8762

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 20, 1:39 PM CST	Severe Thunderstorm Warning	MOB	Choctaw	31 min
Mar 20, 4:33 PM CST	Tornado Warning	MOB	Choctaw, Washington	42 min
Mar 20, 4:56 PM CST	Tornado Warning	MOB	Clarke	49 min
Mar 20, 5:25 PM CST	Tornado Warning	MOB	Wilcox	26 min
Mar 20, 3:30 PM CST	Tornado Warning	MOB	Wayne	31 min
Mar 20, 4:04 PM CST	Severe Thunderstorm Warning	MOB	Wayne	41 min
Mar 20, 4:21 PM CST	Severe Thunderstorm Warning	MOB	Perry	39 min
Mar 20, 4:32 PM CST	Tornado Warning	MOB	Perry	28 min
Mar 20, 4:46 PM CST	Tornado Warning	MOB	Greene	29 min
Mar 20, 5:43 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	40 min

Nearby

Tornado Warnings in Alabama, 2006 Tornado Warnings in Mississippi, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.