Alert archive / Alabama / Tornado Warnings in 2008

Tornado Warning 46, NWS Mobile, AL

April 4, 2008Washington County, Alabama; Greene County, Mississippi

NWS Mobile, AL issued this tornado warning at Apr 4, 2008, 6:38 PM CDT for Washington County, Alabama; Greene County, Mississippi. It was in force for 32 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: Apr 4, 2008, 6:38 PM CDT (23:38 UTC)
Expired: Apr 4, 2008, 7:10 PM CDT
In force: 32 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Washington County, AL, Greene County, MS

The radar

The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 23:41 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
Apr 4, 9:48 AM CDT	Tornado Watch	SPC	9 hr
Apr 4, 5:48 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.6 hours before the alert went out and 183 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: 1149 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 580 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 042338
TORMOB
ALC129-MSC041-050045-
/O.NEW.KMOB.TO.W.0046.080404T2338Z-080405T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
638 PM CDT FRI APR 4 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...  
  CENTRAL WASHINGTON COUNTY IN SOUTHWEST ALABAMA...


* UNTIL 745 PM CDT

* AT 636 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES WEST OF
  YELLOW PINE...OR ABOUT 17 MILES NORTH OF LEAKESVILLE...MOVING EAST
  AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  YELLOW PINE AND FRUITDALE BY 655 PM CDT...
  CHATOM...JORDAN AND 6 MILES NORTH OF TIBBIE BY 715 PM 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. IN ADDITION TO THE TORNADO...THIS
STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL OR DAMAGING
STRAIGHT LINE WINDS.

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...DITCH OR LOW DEPRESSION AND COVER YOUR
HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3153 8813 3148 8810 3136 8813 3132 8822
      3133 8844 3134 8863 3138 8864 3142 8863
      3143 8847 3148 8840
TIME...MOT...LOC 2338Z 258DEG 27KT 3139 8857

$$

2 follow-up statements

000 
WWUS54 KMOB 042358
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
658 PM CDT FRI APR 4 2008

MSC041-050008-
/O.CAN.KMOB.TO.W.0046.000000T0000Z-080405T0045Z/
GREENE MS-
658 PM CDT FRI APR 4 2008

...THE TORNADO WARNING FOR NORTHEASTERN GREENE COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3148 8810 3139 8813 3136 8813 3132 8822
      3133 8844 3145 8845 3148 8840 3153 8813
TIME...MOT...LOC 2358Z 266DEG 29KT 3139 8841

$$

ALC129-050045-
/O.CON.KMOB.TO.W.0046.000000T0000Z-080405T0045Z/
WASHINGTON AL-
658 PM CDT FRI APR 4 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
WASHINGTON COUNTY...

AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO NEAR YELLOW PINE...OR ABOUT 12 MILES 
SOUTHWEST OF CHATOM...MOVING EAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  TIBBIE...CHATOM AND 7 MILES SOUTH OF JORDAN BY 715 PM CDT...

IF IN MOBILE 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.

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 MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3148 8810 3139 8813 3136 8813 3132 8822
      3133 8844 3145 8845 3148 8840 3153 8813
TIME...MOT...LOC 2358Z 266DEG 29KT 3139 8841

$$

000 
WWUS54 KMOB 050010
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
709 PM CDT FRI APR 4 2008

ALC129-050019-
/O.CAN.KMOB.TO.W.0046.000000T0000Z-080405T0045Z/
WASHINGTON AL-
709 PM CDT FRI APR 4 2008

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

RADAR DATA SHOWS THAT THE STORM HAS LOST ITS POTENTIAL TO PRODUCE A 
TORNADO AND HAS ALSO FALLEN BELOW SEVERE LIMITS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3148 8810 3139 8813 3136 8813 3132 8822
      3133 8844 3145 8845 3148 8840 3153 8813
TIME...MOT...LOC 0009Z 266DEG 29KT 3140 8831

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 2:06 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	54 min
Apr 4, 2:19 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	41 min
Apr 4, 2:23 PM CDT	Tornado Warning	MOB	Clarke	29 min
Apr 4, 2:37 PM CDT	Tornado Warning	MOB	Wilcox	53 min
Apr 4, 3:00 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	32 min
Apr 4, 3:06 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	54 min
Apr 4, 3:29 PM CDT	Tornado Warning	MOB	Wilcox	15 min
Apr 4, 4:03 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	42 min
Apr 4, 5:10 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	50 min
Apr 4, 5:23 PM CDT	Tornado Warning	MOB	Washington	52 min
Apr 4, 5:31 PM CDT	Tornado Warning	MOB	Wilcox	29 min
Apr 4, 1:18 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	24 min
Apr 4, 2:29 PM CDT	Severe Thunderstorm Warning	MOB	Stone	46 min
Apr 4, 3:41 PM CDT	Severe Thunderstorm Warning	MOB	Perry	49 min
Apr 4, 4:06 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	39 min
Apr 4, 5:49 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	41 min
Apr 4, 5:59 PM CDT	Tornado Warning	MOB	Greene, Perry, Wayne	46 min
Apr 4, 6:22 PM CDT	Severe Thunderstorm Warning	MOB	Stone	38 min
Apr 4, 6:54 PM CDT	Severe Thunderstorm Warning	MOB	Stone	51 min

Nearby

Tornado Warnings in Alabama, 2008 Tornado Warnings in Mississippi, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.