Damage survey for Gibson County, IN macroburst on July 31 - updated

A complex of severe thunderstorms affected southwest Indiana and northwest Kentucky on Tuesday evening.

  • The hardest hit area was in eastern Gibson County, where baseball to grapefruit-size hail reportedly injured people at a parade in Oakland City. Damaging winds from Oakland City to Mackey destroyed a barn, damaged roofs, and uprooted numerous trees. Roads were blocked by debris, including State Route 57.
  • The severe storms continued south across Warrick County, where golf-ball size hail and tree damage was reported from Chandler to Newburgh.
  • The severe storms continued south between Henderson and Owensboro, producing strong winds and hail. 

...DAMAGE SURVEY RESULTS FOR GIBSON COUNTY INDIANA MACROBURST...

THE FOLLOWING IS THE PRELIMINARY DAMAGE ASSESSMENT FOR
THE OAKLAND CITY AREA IN GIBSON COUNTY.

* EVENT TYPE.........MACROBURST

* EVENT DATE.........TUESDAY JULY 31 2012

* EVENT TIME.........615 PM TO 630 PM CDT

* EVENT LOCATION.....OAKLAND CITY TO 3 MILES SOUTH OF BUCKSKIN

* PEAK WIND..........110 MPH

* AVG. PATH WIDTH....3.5 MILES

* PATH LENGTH........12 MILES

* INJURIES...........4 TREATED...3 DUE TO HAIL AND 1 DUE TO WIND

* FATALITIES.........0

* DAMAGE DETAIL......THOUSANDS OF TREES SNAPPED OR UPROOTED. 78
   HOMES/BUSINESSES WITH MAJOR DAMAGE...SUCH AS LOSS OF ROOF
   DECKING OR PORCHES. 249 WITH MINOR DAMAGE SUCH AS LOSS OF
   SHINGLES OR MINOR SIDING LOSS. DOZENS OF BARNS/SHEDS HEAVILY
   DAMAGED OR DESTROYED. MAJOR HAIL DAMAGE TO MANY
   HOMES...PRIMARILY IN OAKLAND CITY. ALL 4 INJURIES OCCURRED IN
   OAKLAND CITY.

Map of damaging wind and large hail reports on July 31, 2012. The severe weather reports were just east of a line from Princeton, Indiana to Evansville, Indiana.

Map of events on July 31, 2012

A more detailed image of the macroburst...

Detailed map of macroburst

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PADUCAH KY
959 PM CDT TUE JUL 31 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0612 PM     HAIL             5 SW PETERSBURG         38.44N 87.35W
07/31/2012  E0.88 INCH       PIKE               IN   TRAINED SPOTTER

            ALSO 1 INCH TREE LIMBS DOWN

0620 PM     TSTM WND DMG     FRANCISCO               38.33N 87.45W
07/31/2012                   GIBSON             IN   BROADCAST MEDIA

            SIDING PEELED OFF A HOUSE.

0624 PM     TSTM WND DMG     OAKLAND CITY            38.34N 87.35W
07/31/2012                   GIBSON             IN   LAW ENFORCEMENT

            TREE DOWN ON A TRAILER WITH RESIDENTS STILL INSIDE.
            SPOTTER ESTIMATED WINDS OVER 60 MPH.

0624 PM     HAIL             OAKLAND CITY            38.34N 87.35W
07/31/2012  E2.75 INCH       GIBSON             IN   LAW ENFORCEMENT

            UNKNOWN NUMBER OF INJURIES AT A PARADE...REPORTED BY
            COUNTY 911

0627 PM     HAIL             OAKLAND CITY            38.34N 87.35W
07/31/2012  M1.75 INCH       GIBSON             IN   TRAINED SPOTTER

0631 PM     TSTM WND DMG     2 S OAKLAND CITY        38.31N 87.35W
07/31/2012                   GIBSON             IN   TRAINED SPOTTER

            REPORTS OF TREE DAMAGE...SOME UPROOTED AND SOME SNAPPED.
            PARTOF A ROOF ON THE HIGHWAY...AND OTHER BUILDINGS WITH
            STRUCTURAL DAMAGE. THUNDERSTORMS WINDS ESTIMATED BETWEEN
            70 AND 80 MPH.

0640 PM     TSTM WND DMG     1 E MACKEY              38.25N 87.37W
07/31/2012                   GIBSON             IN   TRAINED SPOTTER

            LARGE BARN BLOWN DOWN...MULTIPLE TREES SNAPPED AND
            UPROOTED...DEBRIS BLOCKING ROADS...SHINGLES OFF HOUSES

0647 PM     HAIL             2 W LYNNVILLE           38.20N 87.35W
07/31/2012  E1.75 INCH       WARRICK            IN   TRAINED SPOTTER

            3 TO 5 INCH TREE LIMBS DOWN

0647 PM     HAIL             2 W LYNNVILLE           38.20N 87.35W
07/31/2012  E1.75 INCH       WARRICK            IN   TRAINED SPOTTER

            3 TO 5 INCH TREE LIMBS DOWN

0658 PM     HAIL             CHANDLER                38.04N 87.37W
07/31/2012  E1.75 INCH       WARRICK            IN   BROADCAST MEDIA

0658 PM     HAIL             CHANDLER                38.04N 87.37W
07/31/2012  E1.50 INCH       WARRICK            IN   TRAINED SPOTTER

            TREE LIMBS DOWN WITH POWER OUT AT A FEW HOMES

0702 PM     HAIL             NEWBURGH                37.95N 87.40W
07/31/2012  E0.88 INCH       WARRICK            IN   TRAINED SPOTTER

            TWO REPORTS OF NICKEL SIZE HAIL IN NEWBURGH

0704 PM     HAIL             2 N NEWBURGH            37.98N 87.40W
07/31/2012  E1.75 INCH       WARRICK            IN   TRAINED SPOTTER

0706 PM     HAIL             NEWBURGH                37.95N 87.40W
07/31/2012  E1.75 INCH       WARRICK            IN   TRAINED SPOTTER

            QUARTER TO GOLFBALL SIZE HAIL

0710 PM     HAIL             NEWBURGH                37.95N 87.40W
07/31/2012  E1.75 INCH       WARRICK            IN   TRAINED SPOTTER

            SPOTTER SAW SOME ROTATION/POSSIBLE FUNNEL CLOUD

0710 PM     TSTM WND GST     NEWBURGH                37.95N 87.40W
07/31/2012  E65.00 MPH       WARRICK            IN   TRAINED SPOTTER

            SPOTTER REPORTED HEALTHY 10 INCH DIAMETER TREE BLOWN DOWN
            IN YARD.

0846 PM     HAIL             DELAWARE                37.68N 87.40W
07/31/2012  E0.88 INCH       DAVIESS            KY   TRAINED SPOTTER

Damage pictures

Windows broken in Oakland City business

Windows broken in an Oakland City Business

Machine shed destroyed in Oakland City

Machine shed destroyed in Oakland City

Grain bins desroyed in Somerville

Grain bins destroyed in Somerville

Damge to homes in Oakland City

Home damage in Oakland City

Hail damaged home in OakLand City

Hail damaged home in Oakland City

Home destroyed in Sommerville

Home destroyed in Sommerville

Radar Loop

 

 loop of 60 dBZ core from July 31, 2012 storm

This animation shows the 60 dBZ core between 604PM and 636PM in Gibson county. This is a very large core, as typically severe storms have 60 dBZ cores to about 25,000 ft this time of year. This one, as you can see stretched as high as 40,000 ft at times. This storm produced grapfruit size hail and 110 mph winds. Many structures were severely damaged or destroyed from the wind-driven hail.



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