Alert archive / Alabama / Tornado Warnings in 2006

Tornado Warning 18, NWS Mobile, AL

March 20, 2006Clarke County, Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Mar 20, 2006, 6:39 PM CST for Clarke County, Washington County, Alabama. It was in force for 51 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, 6:39 PM CST (00:39 UTC)
Expired: Mar 20, 2006, 7:30 PM CST
In force: 51 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Clarke County, AL, Washington County, AL

The radar

The Mobile radar (KMOB), 98 km from the middle of the area, began a volume at 00:41 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 00:00Z, 0.7 hours before the alert went out and 222 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: 906 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 921 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 210039
TORMOB
ALC025-129-210130-
/O.NEW.KMOB.TO.W.0018.060321T0039Z-060321T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
639 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

* UNTIL 730 PM CST

* AT 637 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER
  PRESTWICK...AND MOVING EAST AT 60 MPH.

* THE TORNADO PRODUCING STORM IS EXPECTED TO BE NEAR...
  ALMA AND MANILLA BY 650 PM CST
  SUGGSVILLE BY 655 PM CST

IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...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. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 100 AM CST TUESDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3154 8811 3136 8808 3146 8761 3164 8759

$$

1 follow-up statement

000 
WWUS54 KMOB 210054
SVSMOB

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

ALC129-210104-
/O.CAN.KMOB.TO.W.0018.000000T0000Z-060321T0130Z/
WASHINGTON AL-
654 PM CST MON MAR 20 2006

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST MONDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 100 AM CST TUESDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3157 8787 3140 8785 3145 8760 3163 8761

$$

ALC025-210130-
/O.CON.KMOB.TO.W.0018.000000T0000Z-060321T0130Z/
CLARKE AL-
654 PM CST MON MAR 20 2006

...A TORNADO WARNING CONTINUES UNTIL 730 PM CST FOR CENTRAL CLARKE
COUNTY...

AT 650 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES SOUTHWEST OF
WALKER SPRINGS...OR ABOUT 17 MILES SOUTH OF GROVE HILL...MOVING EAST
AT 45 MPH.

THE TORNADO WILL BE NEAR...
  MANILLA...GAINESTOWN AND 8 MILES SOUTH OF ALLEN BY 700 PM CST
  BARLOW BEND AND 7 MILES SOUTH OF SUGGSVILLE BY 705 PM CST

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST MONDAY EVENING
FOR SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL 100 AM CST TUESDAY MORNING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3157 8787 3140 8785 3145 8760 3163 8761

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 20, 6:06 PM CST	Severe Thunderstorm Warning	MOB	Choctaw, Washington	24 min
Mar 20, 6:19 PM CST	Tornado Warning	MOB	Washington	26 min
Mar 20, 7:15 PM CST	Severe Thunderstorm Warning	MOB	Monroe	45 min
Mar 20, 7:38 PM CST	Severe Thunderstorm Warning	MOB	Wilcox	67 min

Nearby

Tornado Warnings in Alabama, 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.