April 15, 2011 Tornado Outbreak Information

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EF Damage Scale Disclaimer

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
915 PM CDT WED APR 20 2011

...WEDNESDAY DAMAGE SURVEY FINDS AN EF-2 TORNADO TRACK ACROSS
ESCAMBIA AND COVINGTON COUNTIES AND AN EF-1 TORNADO ACROSS NORTH
CENTRAL ESCAMBIA COUNTY ALABAMA...

...ELEVEN TORNADO TRACKS NOW CONFIRMED...

BELOW ARE THE DETAILS REGARDING THE ELEVEN TORNADOES IDENTIFIED TO
DATE. THE NEWEST TORNADO TRACK SURVEYED WILL APPEAR AT THE TOP OF
THE LIST. THE INFORMATION BELOW IS STILL CONSIDERED PRELIMINARY AND
SUBJECT TO FURTHER REVISION.

&&

* EVENT LOCATION: APPLETON, ALABAMA TO 9 MI NORTH OF BREWTON, ALABAMA
* STORM CLASSIFICATION: EF-1 INTENSITY TORNADO (MAX WINDS: 100 MPH)
* BEGINNING LAT/LON: 31.227N / -87.123W
* ENDING LAT/LON: 31.255N / -87.040W
* PATH LENGTH: 5 MILES
* MAXIMUM WIDTH: 75 YARDS
* NOTES: THE TORNADO FIRST TOUCHED DOWN IN THE SMALL COMMUNITY OF
APPLETON PRODUCING EF-0 INTENSITY TREE DAMAGE. SCATTERED TREE DAMAGE
CONTINUED ALONG THE TRACK TO THE NORTHEAST. A QUONSET HUT STYLE HOME
(MADE OF CORRUGATED METAL) WAS DESTROYED ON HIGHWAY 31...VERY CLOSE
TO THE CONECUH COUNTY LINE. A SMALL OUTBUILDING WAS ALSO OVERTURNED
ON THE LOT. THE TORNADO LIFTED ON THE OTHER SIDE OF HIGHWAY 31 NEAR
COUNTY ROAD 57.

&&

* EVENT LOCATION: DAMASCUS, ALABAMA TO ANDALUSIA, ALABAMA
* STORM CLASSIFICATION: EF-2 INTENSITY TORNADO (MAX WINDS: 130 MPH)
* BEGINNING LAT/LON: 31.203N / -86.860W
* ENDING LAT/LON: 31.280N / -86.482W
* PATH LENGTH: 22 MILES
* MAXIMUM WIDTH: 300 YARDS
* NOTES: THE TORNADO FIRST TOUCHED DOWN JUST WEST OF DAMASCUS ROAD
AND QUICKLY INTENSIFIED AS IT MOVED EAST. EF-2 INTENSITY DAMAGE WAS
OBSERVED ALONG DAMASCUS ROAD. TWO MOBILE HOMES AND ONE WOOD FRAME
RESIDENCE (WITH STRAIGHT NAILED IN WALLS) WERE DESTROYED. SEVEN
OTHER MOBILE AND FRAMED HOMES WERE DAMAGED. ALL OF THE TREES IN A 70
YARD PATH WERE SNAPPED MID TRUNK OR LOWER. THE TORNADO CONTINUED TO
TRAVEL EAST NORTHEAST...PRODUCING TREE DAMAGE ACROSS EXTREME EASTERN
ESCAMBIA COUNTY AND EXTREME SOUTHERN CONECUH COUNTY. THE TORNADO
THEN TRACKED INTO WESTERN COVINGTON COUNTY...PRODUCING ROOF DAMAGE
TO A FEW HOMES ALONG COUNTY ROAD 42. AN UNATTACHED GARAGE WAS ALSO
HEAVILY DAMAGED WHEN THE GARAGE DOOR FAILED...ALLOWING THE WIND TO
BLOW OUT THE BACK WALLS OF THE STRUCTURE. THE TORNADO MAINTAINED
EF-1 INTENSITY AS IT MOVED TOWARD THE SOUTH SIDE OF ANDALUSIA. MOST
OF THE DAMAGE WAS OBSERVED ALONG COUNTY HIGHWAY 59 ALONG AND EAST OF
U.S. HIGHWAY 29. SOME OF THE DAMAGED OBSERVED INCLUDED SHINGLE
DAMAGE AND A CONTINUATION OF TREE DAMAGE. ONE HOME SUFFERED ROOF
DAMAGE WHEN SOME TREES FALL ONTO IT. THE TORNADO WEAKENED TO AN EF-0
AND LIFTED NEAR HIGHWAY 55...BUT NOT BEFORE CAUSING ROOF DAMAGE TO
THE ANDALUSIA COMMUNITY CENTER.

&&

* EVENT LOCATION: STATE LINE, MISSISSIPPI TO LATON HILL, ALABAMA
* STORM CLASSIFICATION: EF-1 INTENSITY TORNADO (MAX WINDS: 100 MPH)
* BEGINNING LAT/LON: 31.429N / -88.473W
* ENDING LAT/LON: 31.473N / -88.403W
* PATH LENGTH: 5 MILES
* MAXIMUM WIDTH: 200 YARDS
* NOTES: THE TORNADO FIRST TOUCHED DOWN ON HIGHWAY 57 JUST SOUTH OF
SAINT PETER STREET IN STATE LINE AND MOVED NORTHEAST TOWARD HIGHWAY
45...PRODUCING EF-0 TREE DAMAGE. IN ADDITION...A WINDOW WAS BLOWN
OUT OF A HOME LIKELY DUE TO DEBRIS AND AN ABANDONED CHURCH LOST PART
OF ITS TIN ROOF. THE TORNADO STRENGTHENED TO EF-1 INTENSITY AS IT
MOVED INTO WASHINGTON COUNTY WITH THE DAMAGE OCCURRING NEAR AND
ALONG HIGHWAY 56. A FREE STANDING GARAGE AND METAL BUILDING WERE
DESTROYED...A TREE FELL ONTO A HOME CAUSING ROOF DAMAGE...TWO HOMES
SUFFERED ROOF DAMAGE DUE TO THE WIND...AND CHIMNEY AND GARAGE DAMAGE
WAS NOTED ON ANOTHER HOME. THE TORNADO WEAKENED AND LIFTED NEAR
JESSIE WILLIAMS ROAD JUST NORTH OF HIGHWAY 56.

&&

* EVENT LOCATION: YARBO, ALABAMA
* STORM CLASSIFICATION: EF-2 INTENSITY TORNADO (MAX WINDS: 130 MPH)
* BEGINNING LAT/LON: 31.551N / -88.283W
* ENDING LAT/LON: 31.561N / -88.268W
* PATH LENGTH: 1 MILE
* MAXIMUM WIDTH: 150 YARDS
* INJURIES: 1
* NOTES: THE TORNADO FIRST TOUCHED DOWN ON HIGHWAY 17 IN YARBO
PRODUCING EF-0 INTENSITY DAMAGE TO TREES. THE TORNADO QUICKLY
STRENGTHENED AS IT MOVED NORTHEAST...DESTROYING A SMALL WOOD FRAMED
HOME SITTING ON CINDER BLOCK PIERS. THE OCCUPANT INSIDE THE HOME
SUFFERED BROKEN RIBS AND WAS TRANSPORTED TO THE HOSPITAL. THE
TORNADO THEN QUICKLY WEAKENED AND LIFTED JUST TO THE NORTHEAST OF
THE RESIDENCE.

&&

* EVENT LOCATION:CITRONELLE, ALABAMA
* STORM CLASSIFICATION: EF-0 INTENSITY TORNADO (MAX WINDS: 85 MPH)
* BEGINNING LAT/LON: 31.096N / -88.253W
* ENDING LAT/LON: 31.097N / -88.232W
* PATH LENGTH: 1 MILE
* MAXIMUM WIDTH: 50 YARDS
* NOTES: A BRIEF EF-0 TORNADO TOUCHED DOWN NEAR NORTH 6TH STREET...
MOVED DUE EAST AND LIFTED JUST EAST OF HIGHWAY 45. SCATTERED TREE
DAMAGE WAS NOTED ALONG THE PATH. IN ADDITION...A MOBILE HOME
SUFFERED ROOF DAMAGE AND A PORTION OF THE ROOF WAS TORN OFF OF AN
APARTMENT COMPLEX.

&&

* EVENT LOCATION: LEAKESVILLE, MISSISSIPPI TO DEER PARK, ALABAMA
* STORM CLASSIFICATION: EF-3 INTENSITY TORNADO (MAX WINDS: 160 MPH)
* BEGINNING LAT/LON: 31.129N / -88.632W
* ENDING LAT/LON: 31.212N / -88.321W
* PATH LENGTH: 20 MILES
* MAXIMUM WIDTH: 500 YARDS
* FATALITIES: 4
* INJURIES: 9
* NOTES: AN AERIAL SURVEY HAS REVEALED ONE TORNADO TRACK FROM
LEAKESVILLE TO DEER PARK. THE TORNADO TOUCHED DOWN WEST OF
LEAKESVILLE JUST SOUTH OF HIGHWAY 57. IT CROSSED THE HIGHWAY...
STRENGTHENED AND THEN TURNED EAST TOWARD THE CITY OF LEAKESVILLE
PARALLELING HIGHWAY 57. THE TORNADO DAMAGED OR DESTROYED NUMEROUS
MOBILE HOMES...RESIDENCES...AND BUSINESSES IN LEAKESVILLE. ONE
FATALITY OCCURRED IN A DESTROYED MOBILE HOME. THE TORNADO CONTINUED
EAST NORTHEAST INTO EXTREME SOUTHWEST WASHINGTON COUNTY...AFFECTING
THE DEER PARK COMMUNITY. MOST OF THE DAMAGE WAS ALONG COUNTY ROAD 8
WHERE SEVERAL MOBILE HOMES WERE DAMAGED OR DESTROYED. THREE
FATALITIES AND THREE INJURIES OCCURRED IN A DESTROYED MOBILE HOME.
THE TORNADO LIFTED JUST PRIOR TO REACHING HIGHWAY 45. EXTENSIVE TREE
DAMAGE WAS NOTED ALONG THE ENTIRE PATH.

&&

* EVENT LOCATION: CENTRAL CHOCTAW COUNTY ALABAMA (RED SPRINGS AREA)
* STORM CLASSIFICATION: EF-2 INTENSITY TORNADO (MAX WINDS: 135 MPH)
* BEGINNING LAT/LON: 32.017N / -88.291W
* ENDING LAT/LON: 32.059N / -88.080W
* PATH LENGTH: 13 MILES
* MAXIMUM WIDTH: 1000 YARDS
* NOTES: AN AERIAL SURVEY HAS REVEALED A 13 MILE TORNADO TRACK
ACROSS CENTRAL CHOCTAW COUNTY. THE TORNADO FIRST TOUCHED DOWN JUST
WEST OF HIGHWAY 17...SOUTHWEST OF RED SPRINGS. THE TORNADO
STRENGTHENED AS IT MOVED NORTHEAST INTO THE RED SPRINGS COMMUNITY...
DAMAGING OR DESTROYING SEVERAL MOBILE HOMES AND RESIDENCES. THE
AERIAL SURVEY SHOWS THE TORNADO TURNED EAST AS IT MOVED OUT OF RED
SPRINGS AND WIDENED TO A MAXIMUM WIDTH OF 1000 YARDS...RESULTING IN
MAJOR TREE DAMAGE ALONG ITS PATH. GIVEN THE WIDENING OF THE
TORNADO...IT IS LIKELY THE TORNADO WAS STRONGER AT THIS STAGE THAN
IT WAS WHEN IT MOVED THROUGH RED SPRINGS. THANKFULLY...NO STRUCTURES
WERE IN THE PATH OF THE TORNADO EAST OF RED SPRINGS. THE AERIAL
SURVEY INDICATED THE TORNADO WAS BEGINNING TO WEAKEN AS IT
APPROACHED THE TOMBIGBEE RIVER BUT CONTINUED INTO WESTERN MARENGO
COUNTY.

&&

* EVENT LOCATION: GAINESTOWN, ALABAMA (SOUTHERN CLARKE COUNTY)
* STORM CLASSIFICATION: EF-2 INTENSITY TORNADO (MAX WINDS: 130 MPH)
* BEGINNING LAT/LON: 31.480N / -87.685W
* ENDING LAT/LON: 31.481N / -87.682W
* PATH LENGTH: 0.2 MILES
* MAXIMUM WIDTH: 120 YARDS
* INJURIES: 2 MINOR
* NOTES: ALL OF THE DAMAGE OCCURRED ON WALKABOUT ROAD. ONE SINGLE
WIDE MOBILE HOME WAS COMPLETELY DESTROYED WITH ONE INDIVIDUAL
SUFFERING MINOR INJURIES. ANOTHER MINOR INJURY OCCURRED AS THE
TORNADO SHIFTED A DOUBLE WIDE MOBILE HOME THREE FEET OFF OF ITS
FOUNDATION AND PEELED OFF MOST OF ITS ROOF. ONE OTHER MOBILE HOME
AND SINGLE FAMILY RESIDENCE SUFFERED MINOR TO MODERATE ROOF DAMAGE.
NUMEROUS HARDWOOD AND SOFTWOOD TREES WERE SNAPPED OR UPROOTED.

&&

* EVENT LOCATION: TUNNEL SPRINGS/OLD TEXAS, ALABAMA (NE MONROE
COUNTY)

* STORM CLASSIFICATION: EF-3 INTENSITY TORNADO (MAX WINDS: 145 MPH)
* BEGINNING LAT/LON: 31.633N / -87.245W
* ENDING LAT/LON:31.768N / -86.894W
* PATH LENGTH: 19 MILES
* MAXIMUM WIDTH: 300 YARDS
* NOTES: AT LEAST TWO SUPERCELL THUNDERSTORMS TRACKED OVER THE SAME
AREA OF NORTHEAST MONROE COUNTY...PRODUCING TWO TORNADO TRACKS...ONE
OF WHICH OCCURRED IN THE EARLY EVENING. THIS FIRST TORNADO FIRST
TOUCHED ON ROBINSON CREEK ROAD JUST WEST OF HIGHWAY 47 IN TUNNEL
SPRINGS. EF-2 DAMAGE WAS NOTED AT THE AMITY MISSIONARY BAPTIST
CHURCH. A LARGE SECTION OF THE CHURCH ROOF WAS LIFTED OFF. THE
TORNADO CONTINUED NORTHEAST PRODUCING SCATTERED TREE DAMAGE. THE
TORNADO INTENSIFIED AS IT HIT THE BETHLEHEM METHODIST CHURCH IN THE
OLD TEXAS COMMUNITY. THE CHURCH WAS COMPLETELY DESTROYED WITH ONLY A
FEW INTERIOR WALLS LEFT STANDING. THIS DAMAGE WAS CONSISTENT WITH
EF-3 INTENSITY DAMAGE WITH WINDS NEAR 145 MPH. THE TORNADO THEN
WEAKENED AND LIFTED TO THE NORTHEAST OF THE CHURCH. TREE DAMAGE AND
SHINGLE DAMAGE WAS NOTED PRIOR TO THE TORNADO LIFTING.

&&

* EVENT LOCATION: RILEY CROSSINGS TO GREENVILLE AL (MONROE/BUTLER
COUNTIES)

* STORM CLASSIFICATION: EF-2 INTENSITY TORNADO (MAX WINDS: 130 MPH)
* BEGINNING LAT/LON: 31.688N / -87.216W
* ENDING LAT/LON: 31.897N / -86.685W
* PATH LENGTH: 35 MILES
* MAXIMUM WIDTH: 400-500 YARDS
* NOTES: A SECOND SUPERCELL PRODUCED A TORNADO DURING THE LATE
EVENING HOURS ACROSS NORTHEAST MONROE COUNTY. THE TORNADO FIRST
TOUCHED DOWN JUST WEST OF HIGHWAY 47...SOUTHWEST OF RILEY CROSSINGS.
IN RILEY CROSSINGS...THE SAVANNAH MISSIONARY BAPTIST CHURCH SUFFERED
SIGNIFICANT ROOF DAMAGE...LOSING THE STEEPLE AND MUCH OF THE ROOF
COVERING. TWO HOMES BEHIND THE CHURCH SUFFERED EXTENSIVE DAMAGE. ONE
BRICK HOME SUFFERED COMPLETE FAILURE OF THE ROOF AND WALLS OF THE
ATTACHED GARAGE. A CINDER BLOCK HOME LOST A SIGNIFICANT PORTION OF
ITS SOUTH FACING ROOF. ALL OF THIS DAMAGE WAS OF EF-2 INTENSITY. THE
TORNADO CONTINUED ON TO THE NORTHEAST AND CROSSED PATHS WITH THE
EARLIER TORNADO NEAR THE BETHLEHEM CHURCH. THE TORNADO THEN ENTERED
NORTHWEST BUTLER COUNTY PRODUCING SCATTERED TREE DAMAGE ALONG THE
PATH. EXTENSIVE TREE DAMAGE WAS NOTED FROM GROUND AND AERIAL SURVEYS
ALONG SHERLING LAKE DRIVE...INCLUDING THE SOUTHEASTERN PORTION OF
THE CAMBRIAN RIDGE GOLF COURSE AND SHERLING LAKE PARK CAMPGROUND.
THE TREE DAMAGE NOTED IN THESE LOCATION IS CONSISTENT WITH EF-1
INTENSITY.

&&

* EVENT LOCATION: FORREST HOME, ALABAMA (NW BUTLER COUNTY)
* STORM CLASSIFICATION: EF-0 INTENSITY TORNADO (MAX WINDS: 80 MPH)
* BEGINNING LAT/LON: 31.876N / -86.810W
* ENDING LAT/LON: 31.878N / -86.808W
* PATH LENGTH: 0.2 MILES
* MAXIMUM WIDTH: 100-150 YARDS
* NOTES: SPORADIC TREE DAMAGE WITH TREES UPROOTED. ALSO SOME MINOR
SHINGLE DAMAGE OBSERVED TO TWO HOMES OFF OF BROAD STREET.

&&

THE NATIONAL WEATHER SERVICE IN MOBILE WILL BE CONDUCTING ADDITIONAL
SURVEYS OVER THE NEXT FEW DAYS. THE SURVEY TEAM PLANS TO VISIT THE
FOLLOWING DAMAGE AREAS:

* NORTHWEST CHOCTAW COUNTY (LISMAN AND MELVIN, AL)

FOR A GRAPHICAL DEPICTION OF THE TORNADO TRACKS VISIT THE NWS DAMAGE
SURVEY VIEWER WEBPAGE AT: HTTP://GISDEV.SRH.NOAA.GOV/STORMDAMAGE/
DAMAGEVIEWER

$$

JFB/JG

Click to Enlarge
4/15/2011 Tornado Tracks
Figure 1

Figure 1 - Shown is the 15 April 2011 NWS Mobile, AL Tornado Event Composite Summary.  There were a total of 18 tornadoes that day.  The graphic depicts tracks and tornado intensity (EF-Scale).  The colored tornado icon represents the beginning location of each tornado while the numbers besides each indicate the chronological order and time (UTC, subtract 5 h) when each tornado first began.

Click to Enlarge
Hail Swaths
Figure 2

Figure 2 shows hail swaths from the event time period and depicts annotated ground truth large hail reports from citizens and officials. Some hail reports were as large as baseballs!

 

Click to Enlarge
Event Reports
Figure 3

 Figure 3 shows all tornado, large hail and severe thunderstorm wind reports associated with the event within the NWS Mobile/Pensacola Warning Area.


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