A complex of severe thunderstorms, that cause significant and widespread damaging winds known as a derecho, developed during the morning of the 29th over northern Illinois. This complex of storms quickly intensified and sped southeast through the northern half of Indiana during the afternoon. Wind gusts of 60 to 70 mph, blinding rainfall, large hail and constant lightning accompanied the derecho in central Indiana immediately north of Indianapolis. The wind gusted from 55 to 60 mph in the Indianapolis metro area as a result of the outflow boundary from these storms.

Hail in FOUNTAIN, INDIANA
From 29-JUN-12 14:15:00 to 29-JUN-12 14:17:00 (EST-5)
Location: RIVERSIDE
Magnitude: 1.25 
Reported by: Trained Spotter

Thunderstorm wind gusts with speeds of 50 mph were also observed.

Hail in WARREN, INDIANA
From 29-JUN-12 13:50:00 to 29-JUN-12 13:52:00 (EST-5)
Location: PINE VLG
Magnitude: 1.75 
Reported by: Public

Golf ball sized hail, or slightly larger, was observed southeast of Pine Village.

Hail in TIPTON, INDIANA
From 29-JUN-12 14:20:00 to 29-JUN-12 14:22:00 (EST-5)
Location: WINDFALL
Magnitude: 0.88 
Reported by: Amateur Radio

Thunderstorm Wind in CARROLL, INDIANA
From 29-JUN-12 13:40:00 to 29-JUN-12 13:40:00 (EST-5)
Location: PYRMONT
Magnitude: 61.00 EG
Property damage: 20.00K
Reported by: Law Enforcement

Trees and power lines were reported down at several spots across Carroll county due to damaging thunderstorm wind gusts. Time and location was estimated from radar data.

Thunderstorm Wind in TIPTON, INDIANA
From 29-JUN-12 14:20:00 to 29-JUN-12 14:20:00 (EST-5)
Location: WINDFALL
Magnitude: 52.00 EG
Property damage: 0.60K
Reported by: Amateur Radio

An empty 500 gallon capacity water tank was blown approximately 1000 feet due to damaging thunderstorm wind gusts.

Thunderstorm Wind in HOWARD, INDIANA
From 29-JUN-12 14:13:00 to 29-JUN-12 14:13:00 (EST-5)
Location: KOKOMO
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Trees and power lines were reported down in Kokomo due to damaging thunderstorm wind gusts.

Thunderstorm Wind in TIPTON, INDIANA
From 29-JUN-12 14:20:00 to 29-JUN-12 14:20:00 (EST-5)
Location: SHARPSVILLE
Magnitude: 61.00 EG
Property damage: 10.00K
Reported by: Trained Spotter

A tree fell on a truck near the intersection of County Roads 300 West and 700 North due to damaging thunderstorm wind gusts. Report came in via e-spotter. There is an unknown number of injuries, but the report implies at least one.

Thunderstorm Wind in DELAWARE, INDIANA
From 29-JUN-12 14:30:00 to 29-JUN-12 14:30:00 (EST-5)
Location: MUNCIE
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were reported down at Washington and Dicks Street as damaging winds along the gust front from a thunderstorm passed overhead. The timing of this event was estimated by spotter.

Thunderstorm Wind in VERMILLION, INDIANA
From 29-JUN-12 14:30:00 to 29-JUN-12 14:30:00 (EST-5)
Location: COYUGA
Magnitude: 52.00 EG
Property damage: 0.75K
Reported by: Law Enforcement

Power lines were downed by damaging winds as a thunderstorm's gust front passed through this location. Timing was estimated based on radar.

Thunderstorm Wind in VERMILLION, INDIANA
From 29-JUN-12 14:54:00 to 29-JUN-12 14:54:00 (EST-5)
Location: HILLSDALE
Magnitude: 61.00 EG
Property damage: 4.00K
Reported by: Law Enforcement

Trees were reported down in Hillsdale due to damaging outflow winds from a thunderstorm. Time was estimated by radar.

Thunderstorm Wind in MADISON, INDIANA
From 29-JUN-12 14:39:00 to 29-JUN-12 14:39:00 (EST-5)
Location: GIMCO CITY
Magnitude: 52.00 MG
Reported by: Trained Spotter

A 60 mph thunderstorm wind gust was measured in this location.

Thunderstorm Wind in HAMILTON, INDIANA
From 29-JUN-12 14:41:00 to 29-JUN-12 14:41:00 (EST-5)
Location: CICERO
Magnitude: 56.00 EG
Property damage: 2.00K
Reported by: Emergency Manager

Two trees were downed in this location due to damaging thunderstorm wind gusts.

Thunderstorm Wind in DELAWARE, INDIANA
From 29-JUN-12 14:41:00 to 29-JUN-12 14:41:00 (EST-5)
Location: MUNCIE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

An estimated 60 mph thunderstorm wind gust was observed in this location. Very heavy rain was also noted.

Thunderstorm Wind in RANDOLPH, INDIANA
From 29-JUN-12 14:45:00 to 29-JUN-12 14:45:00 (EST-5)
Location: DEERFIELD
Magnitude: 61.00 EG
Property damage: 2.00K
Reported by: COOP Observer

Shingles were blown off a garage roof due to damaging thunderstorm wind gusts. Winds were estimated at 65 to 70 mph.

Thunderstorm Wind in MARION, INDIANA
From 29-JUN-12 14:48:00 to 29-JUN-12 14:48:00 (EST-5)
Location: CROWS NEST
Magnitude: 52.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 60 mph wind gust was measured in this location as damaging outflow winds from a thunderstorm passed by. Two large trees were downed on the Butler University campus across 49th Street. Several tents were also blown over. Time this event occurred was estimated from radar.

Thunderstorm Wind in MADISON, INDIANA
From 29-JUN-12 14:46:00 to 29-JUN-12 14:46:00 (EST-5)
Location: GRIDLEY
Magnitude: 48.00 EG
Property damage: 0.15K
Reported by: Trained Spotter

Minor tree limbs were downed by strong thunderstorm wind gusts.

Thunderstorm Wind in HENRY, INDIANA
From 29-JUN-12 14:47:00 to 29-JUN-12 14:47:00 (EST-5)
Location: NEW CASTLE
Magnitude: 65.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The roof of a building near the intersection of 9th and New York Streets was blown down due to damaging thunderstorm wind gusts.

Thunderstorm Wind in HENRY, INDIANA
From 29-JUN-12 14:48:00 to 29-JUN-12 14:48:00 (EST-5)
Location: RAYSVILLE
Magnitude: 61.00 EG
Property damage: 10.00K
Reported by: Amateur Radio

A barn was blown over in this location due to damaging thunderstorm wind gusts. The time this event occurred was estimated based on radar data.

Thunderstorm Wind in HANCOCK, INDIANA
From 29-JUN-12 14:50:00 to 29-JUN-12 14:50:00 (EST-5)
Location: GREENFIELD
Magnitude: 52.00 EG
Reported by: Trained Spotter

A 60 mph thunderstorm wind gust was estimated in Greenfield.

Thunderstorm Wind in HAMILTON, INDIANA
From 29-JUN-12 15:10:00 to 29-JUN-12 15:10:00 (EST-5)
Location: CARMEL
Magnitude: 48.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree, about one foot in diameter, was reported down in this location due to strong thunderstorm wind gusts.

Thunderstorm Wind in RANDOLPH, INDIANA
From 29-JUN-12 14:26:00 to 29-JUN-12 14:26:00 (EST-5)
Location: FAIRVIEW
Magnitude: 65.00 EG
Property damage: 25.00K
Reported by: Law Enforcement

Several buildings were heavily damaged near the intersection of State Road 1 and State Road 28 due to damaging thunderstorm wind gusts.

Thunderstorm Wind in MARION, INDIANA
From 29-JUN-12 15:17:00 to 29-JUN-12 15:17:00 (EST-5)
Location: CROWS NEST
Magnitude: 52.00 EG
Property damage: 1.25K
Crop damage: 0.00K
Reported by: Public

Power lines were down in this location due to damaging thunderstorm wind gusts.

Thunderstorm Wind in RUSH, INDIANA
From 29-JUN-12 15:28:00 to 29-JUN-12 15:28:00 (EST-5)
Location: RUSHVILLE
Magnitude: 61.00 EG
Property damage: 6.00K
Reported by: Law Enforcement

Numerous trees and power lines were downed due to damaging thunderstorm wind gusts.

Thunderstorm Wind in MARION, INDIANA
From 29-JUN-12 15:32:00 to 29-JUN-12 15:32:00 (EST-5)
Location: GLENNS VLY
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was reported down on a road near State Highway 37 due to damaging thunderstorm wind gusts.

Thunderstorm Wind in DECATUR, INDIANA
From 29-JUN-12 15:42:00 to 29-JUN-12 15:42:00 (EST-5)
Location: MILFORD
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tree, one and a half to two feet in diameter, was downed in this location due to damaging thunderstorm wind gusts.

Thunderstorm Wind in DELAWARE, INDIANA
From 29-JUN-12 14:45:00 to 29-JUN-12 14:45:00 (EST-5)
Location: ROYERTON
Magnitude: 61.00 EG
Property damage: 10.00K
Reported by: Trained Spotter

Trees, tree limbs, and power lines were downed near the intersection of State Highways 28 and 3.

Hail in TIPPECANOE, INDIANA
From 29-JUN-12 13:42:00 to 29-JUN-12 13:43:00 (EST-5)
Location: HALSMER ARPT
Magnitude: 1.00 
Reported by: Public

Mostly pea sized hail was observed, but some were up to one inch in diameter.