Alert archive / Alabama / Tornado Warnings in 2009

Tornado Warning 34, NWS Mobile, AL

April 13, 2009Escambia County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 13, 2009, 4:44 AM CDT for Escambia County, Alabama. It was in force for 21 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 13, 2009, 4:44 AM CDT (09:44 UTC)
Expired: Apr 13, 2009, 5:05 AM CDT
In force: 21 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Escambia County, AL

The radar

The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 09:43 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.

What was reported inside it

Time	Report	Where	Remark
Apr 13, 4:55 AM CDT	TSTM WND DMG	Robinsonville, AL	1 BARN DESTROYED, 1 BARN BADLY DAMAGED. SMALL SHED DESTROYED. 4 BROKEN POWER POLES. A FEW TREES DOWN. DAMAGE OCCURRED IN AN AREA THREE TENTHS OF A MILE WIDE AND THREE FOURTHS OF A MILE LONG EXTENDING SOUTHWEST TO NORTHEAST.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 13, 2:33 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.7 hours before the alert went out and 228 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: 1395 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 485 m²/s²
0-3 km storm-relative helicity: 608 m²/s²
Significant tornado parameter: 5.0
Supercell composite: 19.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 130944
TORMOB
ALC053-131015-
/O.NEW.KMOB.TO.W.0034.090413T0944Z-090413T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
444 AM CDT MON APR 13 2009

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 515 AM CDT

* AT 444 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES NORTH OF
  NOKOMIS...OR ABOUT 17 MILES NORTHEAST OF BAY MINETTE...MOVING
  NORTHEAST AT 20 MPH.

* THE  TORNADO WILL BE NEAR...
  FREEMANVILLE BY 450 AM CDT...
  LITTLE ROCK BY 515 AM 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 1000 AM CDT MONDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3107 8762 3108 8761 3122 8741 3106 8727
      3100 8757
TIME...MOT...LOC 0944Z 242DEG 19KT 3104 8756

$$

1 follow-up statement

000 
WWUS54 KMOB 131005
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
505 AM CDT MON APR 13 2009

ALC053-131015-
/O.CAN.KMOB.TO.W.0034.000000T0000Z-090413T1015Z/
ESCAMBIA AL-
505 AM CDT MON APR 13 2009

...THE TORNADO WARNING FOR WESTERN ESCAMBIA COUNTY IS CANCELLED...

...THE SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM 
CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT MONDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3107 8762 3108 8761 3122 8741 3106 8727
      3100 8757
TIME...MOT...LOC 1005Z 242DEG 19KT 3109 8745

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 9:51 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Washington	39 min
Apr 12, 10:12 PM CDT	Tornado Warning	MOB	Choctaw	33 min
Apr 12, 10:32 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	58 min
Apr 12, 10:34 PM CDT	Tornado Warning	MOB	Choctaw, Clarke	41 min
Apr 12, 11:17 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Washington, Wilcox	58 min
Apr 13, 12:06 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Wilcox	39 min
Apr 13, 12:55 AM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Washington	3 hr
Apr 13, 2:15 AM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	45 min
Apr 13, 2:35 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	40 min
Apr 13, 2:52 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	53 min
Apr 13, 3:00 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	45 min
Apr 13, 3:50 AM CDT	Flash Flood Warning	MOB	Baldwin, Clarke, Mobile, Monroe, Washington	3 hr
Apr 13, 4:16 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	29 min
Apr 13, 4:36 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	39 min
Apr 13, 5:10 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	36 min
Apr 13, 5:42 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Escambia	33 min
Apr 13, 6:27 AM CDT	Severe Thunderstorm Warning	MOB	Covington	33 min
Apr 13, 6:56 AM CDT	Severe Thunderstorm Warning	MOB	Covington	24 min
Apr 13, 7:05 AM CDT	Special Marine Warning	MOB		40 min
Apr 13, 7:12 AM CDT	Flash Flood Warning	MOB	Baldwin, Conecuh, Covington, Escambia, Mobile	3 hr
Apr 13, 7:33 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia	42 min
Apr 13, 8:26 AM CDT	Special Marine Warning	MOB		49 min
Apr 13, 8:35 AM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	40 min
Apr 13, 9:10 AM CDT	Severe Thunderstorm Warning	MOB	Covington	50 min
Apr 13, 9:20 AM CDT	Flash Flood Warning	MOB	Covington, Escambia	115 min
Apr 13, 9:37 AM CDT	Special Marine Warning	MOB		83 min
Apr 13, 9:53 AM CDT	River Flood Warning	MOB	Escambia	5 days
Apr 13, 10:41 AM CDT	Special Marine Warning	MOB		79 min
Apr 13, 11:30 AM CDT	River Flood Warning	MOB	Mobile	23 hr
Apr 13, 12:01 PM CDT	Special Marine Warning	MOB		119 min
Apr 13, 2:03 PM CDT	River Flood Warning	MOB	Covington, Escambia	50 hr
Apr 13, 2:15 PM CDT	Special Marine Warning	MOB		2 hr
Apr 13, 4:12 PM CDT	Special Marine Warning	MOB		2 hr

Nearby

Tornado Warnings in Alabama, 2009 Every tornado warning in 2009 Tornadoes in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.