Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 44, NWS Mobile, AL

April 15, 2011Clarke County, Wilcox County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 15, 2011, 12:51 PM CDT for Clarke County, Wilcox County, Alabama. It was in force for 33 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 15, 2011, 12:51 PM CDT (17:51 UTC)
Expired
Apr 15, 2011, 1:24 PM CDT
In force
33 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Clarke County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 148 km from the middle of the area, began a volume at 17:52 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

TimeReportWhereRemark
Apr 15, 1:10 PM CDTFUNNEL CLOUDNw Grove Hill, ALFUNNEL CLOUD REPORTED NW OF GROVE HILL TOWARDS THOMASVILLE.

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.

IssuedProductOfficeLasted
Apr 15, 7:32 AM CDTTornado WatchSPC7 hr
Apr 15, 11:21 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.9 hours before the alert went out and 162 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2011-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2011-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1553 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

998 
WFUS54 KMOB 151751
TORMOB
ALC025-131-151845-
/O.NEW.KMOB.TO.W.0044.110415T1751Z-110415T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1251 PM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN WILCOX COUNTY IN SOUTH CENTRAL ALABAMA...
  NORTHERN CLARKE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...THOMASVILLE...GROVE HILL...

* UNTIL 145 PM CDT

* AT 1247 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED 
TO INDICATED A SEVERE THUNDERSTORM WITH STRONG SIGNS OF PRODUCING A 
TORNADO 11 MILES WEST OF GROVE HILL...OR 8 MILES EAST OF 
COFFEEVILLE...MOVING NORTHEAST AT 30 MPH. THIS STORM HAS A HISTORY 
OF PRODUCING TORNADOES AND CONFIRMED DAMAGE.

* THE TORNADO WILL BE NEAR...
  GROVE HILL AROUND 100 PM CDT...
  FULTON AROUND 115 PM CDT...
  THOMASVILLE AROUND 125 PM CDT...
  PINE HILL...ANNE MARIE AND YELLOW BLUFF AROUND 145 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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 MOBILE 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 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

&&

LAT...LON 3188 8733 3183 8746 3183 8750 3182 8752
      3181 8752 3163 8796 3179 8809 3201 8780
      3200 8767 3201 8763 3212 8763 3213 8762
TIME...MOT...LOC 1750Z 233DEG 25KT 3175 8794

$$
3 follow-up statements
195 
WWUS54 KMOB 151806
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
106 PM CDT FRI APR 15 2011

ALC025-131-151845-
/O.CON.KMOB.TO.W.0044.000000T0000Z-110415T1845Z/
CLARKE AL-WILCOX AL-
106 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
SOUTHWESTERN WILCOX AND NORTHERN CLARKE COUNTIES...

AT 101 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
TORNADO WAS NEAR CHILTON...OR ABOUT 8 MILES NORTHWEST OF GROVE
HILL...MOVING NORTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  SPRINGFIELD AND FULTON AROUND 115 PM CDT...
  RURAL AROUND 120 PM CDT...
  ROUNDHILL AND THOMASVILLE AROUND 125 PM CDT...
  HESTLE...FINLEY CROSSING AND ATKEISON AROUND 135 PM CDT...
  PINE HILL AND SUNNY SOUTH AROUND 140 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING QUARTER 
SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3213 8762 3188 8733 3183 8746 3183 8750
      3182 8752 3181 8752 3168 8784 3186 8800
      3201 8781 3200 8767 3201 8763 3212 8763
TIME...MOT...LOC 1806Z 233DEG 25KT 3182 8784

$$
808 
WWUS54 KMOB 151811
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
111 PM CDT FRI APR 15 2011

ALC025-131-151845-
/O.CON.KMOB.TO.W.0044.000000T0000Z-110415T1845Z/
CLARKE AL-WILCOX AL-
111 PM CDT FRI APR 15 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
SOUTHWESTERN WILCOX AND NORTHEASTERN CLARKE COUNTIES...

AT 110 PM CDT...TRAINED STORM SPOTTERS REPORTED A FUNNEL CLOUD.  
THIS TORNADO WAS NEAR SPRINGFIELD...OR ABOUT NEAR 
THOMASVILLE...MOVING NORTHEAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  ROUNDHILL AND THOMASVILLE AROUND 120 PM CDT...
  FINLEY CROSSING AROUND 125 PM CDT...
  HESTLE...SUNNY SOUTH...ATKEISON AND CULPEPER AROUND 130 PM CDT...
  PINE HILL AND MACMILLAN AROUND 140 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
GOLF BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3213 8762 3188 8733 3183 8746 3183 8750
      3182 8752 3181 8752 3170 8777 3188 8795
      3201 8781 3200 8767 3201 8763 3212 8763
TIME...MOT...LOC 1811Z 233DEG 25KT 3185 8775

$$
461 
WWUS54 KMOB 151824
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
124 PM CDT FRI APR 15 2011

ALC025-131-151834-
/O.CAN.KMOB.TO.W.0044.000000T0000Z-110415T1845Z/
CLARKE AL-WILCOX AL-
124 PM CDT FRI APR 15 2011

...THE TORNADO WARNING FOR SOUTHWESTERN WILCOX AND NORTHEASTERN
CLARKE COUNTIES IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3213 8762 3188 8733 3183 8746 3183 8750
      3182 8752 3181 8752 3170 8777 3188 8795
      3201 8781 3200 8767 3201 8763 3212 8763
TIME...MOT...LOC 1824Z 233DEG 25KT 3190 8766

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 10:41 PM CDTSmall Craft AdvisoryMOB44 hr
Apr 15, 10:20 AM CDTTornado WarningMOBWashington40 min
Apr 15, 10:50 AM CDTTornado WarningMOBClarke, Washington40 min
Apr 15, 10:56 AM CDTTornado WarningMOBChoctaw49 min
Apr 15, 11:09 AM CDTTornado WarningMOBWashington51 min
Apr 15, 11:26 AM CDTTornado WarningMOBClarke, Monroe49 min
Apr 15, 11:41 AM CDTTornado WarningMOBChoctaw64 min
Apr 15, 11:52 AM CDTTornado WarningMOBChoctaw, Clarke, Washington38 min
Apr 15, 12:07 PM CDTTornado WarningMOBMonroe38 min
Apr 15, 12:20 PM CDTTornado WarningMOBChoctaw, Clarke, Washington40 min
Apr 15, 12:35 PM CDTTornado WarningMOBMonroe, Wilcox24 min
Apr 15, 12:44 PM CDTTornado WarningMOBWashington46 min
Apr 15, 1:09 PM CDTTornado WarningMOBWashington51 min
Apr 15, 1:22 PM CDTTornado WarningMOBClarke, Washington21 min
Apr 15, 1:46 PM CDTTornado WarningMOBClarke, Washington44 min
Apr 15, 2:06 PM CDTSevere Thunderstorm WarningMOBChoctaw27 min
Apr 15, 2:22 PM CDTTornado WarningMOBClarke, Monroe, Wilcox38 min
Apr 15, 2:55 PM CDTTornado WarningMOBMonroe, Wilcox50 min
Apr 15, 3:18 PM CDTTornado WarningMOBButler, Conecuh, Monroe, Wilcox57 min
Apr 15, 3:41 PM CDTTornado WarningMOBClarke, Washington32 min
Apr 15, 4:02 PM CDTTornado WarningMOBChoctaw58 min
Apr 15, 4:27 PM CDTTornado WarningMOBClarke, Monroe48 min
Apr 15, 4:57 PM CDTTornado WarningMOBChoctaw42 min
Apr 15, 5:09 PM CDTTornado WarningMOBButler, Conecuh, Monroe, Wilcox51 min
Apr 15, 5:44 PM CDTTornado WarningMOBMonroe, Wilcox31 min
Apr 15, 5:47 PM CDTTornado Warning EmergencyMOBChoctaw58 min
Apr 15, 5:54 PM CDTTornado WarningMOBWilcox51 min
Apr 15, 5:59 PM CDTTornado WarningMOBButler26 min
Apr 15, 6:23 PM CDTTornado WarningMOBWilcox32 min
Apr 15, 6:34 PM CDTTornado WarningMOBChoctaw41 min
Apr 15, 6:44 PM CDTTornado WarningMOBChoctaw, Clarke, Washington61 min

Nearby

Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.