A warm front worked north into northern Indiana during the afternoon and evening. A very unstable air mass was in place south of the front. The front became oriented from northwest to southeast and allowed for thunderstorm development. The storms were efficient hail producers with hail up to three inches in diameter being reported.

Hail in GRANT, INDIANA
From 10-MAY-11 13:53:00 to 10-MAY-11 13:54:00 (EST-5)
Location: GAS CITY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, INDIANA
From 10-MAY-11 13:58:00 to 10-MAY-11 13:59:00 (EST-5)
Location: FAIRMOUNT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLACKFORD, INDIANA
From 10-MAY-11 14:15:00 to 10-MAY-11 14:16:00 (EST-5)
Location: HARTFORD CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JAY, INDIANA
From 10-MAY-11 14:16:00 to 10-MAY-11 14:17:00 (EST-5)
Location: DUNKIRK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BLACKFORD, INDIANA
From 10-MAY-11 14:22:00 to 10-MAY-11 14:23:00 (EST-5)
Location: HARTFORD CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLACKFORD, INDIANA
From 10-MAY-11 14:22:00 to 10-MAY-11 14:23:00 (EST-5)
Location: HARTFORD CITY ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in JAY, INDIANA
From 10-MAY-11 14:45:00 to 10-MAY-11 14:46:00 (EST-5)
Location: PENNVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in ADAMS, INDIANA
From 10-MAY-11 15:22:00 to 10-MAY-11 15:23:00 (EST-5)
Location: GENEVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, INDIANA
From 10-MAY-11 15:28:00 to 10-MAY-11 15:29:00 (EST-5)
Location: GENEVA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, INDIANA
From 10-MAY-11 16:10:00 to 10-MAY-11 16:11:00 (EST-5)
Location: DECATUR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ADAMS, INDIANA
From 10-MAY-11 16:12:00 to 10-MAY-11 16:13:00 (EST-5)
Location: DECATUR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in ADAMS, INDIANA
From 10-MAY-11 16:27:00 to 10-MAY-11 16:28:00 (EST-5)
Location: RIVARE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, INDIANA
From 10-MAY-11 15:43:00 to 10-MAY-11 15:44:00 (EST-5)
Location: BERNE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, INDIANA
From 10-MAY-11 16:14:00 to 10-MAY-11 16:15:00 (EST-5)
Location: DECATUR
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported tennis ball size hail at U.S. 224 and County Road 300 West.

Hail in ADAMS, INDIANA
From 10-MAY-11 16:01:00 to 10-MAY-11 16:02:00 (EST-5)
Location: PREBLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter