The combination of an unstable air mass and a weak upper level disturbance resulted in thunderstorm development through the afternoon hours. The storms continued into the evening, producing isolated severe thunderstorm wind gusts and hail along with locally heavy rainfall.

Hail in AUGLAIZE, OHIO
From 04-SEP-15 14:01:00 to 04-SEP-15 14:03:00 (EST-5)
Location: WAYNESFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MERCER, OHIO
From 04-SEP-15 14:20:00 to 04-SEP-15 14:22:00 (EST-5)
Location: FT RECOVERY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MADISON, OHIO
From 04-SEP-15 15:26:00 to 04-SEP-15 15:28:00 (EST-5)
Location: PLAIN CITY ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WARREN, OHIO
From 04-SEP-15 15:45:00 to 04-SEP-15 15:47:00 (EST-5)
Location: CROSSWICK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in UNION, OHIO
From 04-SEP-15 15:21:00 to 04-SEP-15 15:23:00 (EST-5)
Location: DIPPLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HAMILTON, OHIO
From 04-SEP-15 17:40:00 to 04-SEP-15 17:42:00 (EST-5)
Location: NORWOOD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in HAMILTON, OHIO
From 04-SEP-15 18:01:00 to 04-SEP-15 18:03:00 (EST-5)
Location: DAYTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in FRANKLIN, OHIO
From 04-SEP-15 15:32:00 to 04-SEP-15 15:35:00 (EST-5)
Location: DUBLIN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few trees were downed in the Dublin area.

Thunderstorm Wind in FRANKLIN, OHIO
From 04-SEP-15 15:26:00 to 04-SEP-15 15:27:00 (EST-5)
Location: (OSU)OH ST UNIV ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in HAMILTON, OHIO
From 04-SEP-15 17:53:00 to 04-SEP-15 17:54:00 (EST-5)
Location: (LUK)LUNKEN FLD CINC
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Flash Flood in HAMILTON, OHIO
From 04-SEP-15 19:00:00 to 04-SEP-15 20:00:00 (EST-5)
Location: DAYTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous roads were closed due to high water. A roof of a building also collapsed due to the heavy rainfall.

Thunderstorm Wind in MERCER, OHIO
From 04-SEP-15 13:45:00 to 04-SEP-15 13:47:00 (EST-5)
Location: PHILOTHEA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several large limbs were downed.

Thunderstorm Wind in FRANKLIN, OHIO
From 04-SEP-15 15:29:00 to 04-SEP-15 15:31:00 (EST-5)
Location: MUDSOCK
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A few trees were downed.

Thunderstorm Wind in HAMILTON, OHIO
From 04-SEP-15 17:43:00 to 04-SEP-15 17:45:00 (EST-5)
Location: RENDCOMB JCT
Magnitude: 60.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several sections of trees were downed in Ault Park.

Thunderstorm Wind in HAMILTON, OHIO
From 04-SEP-15 17:42:00 to 04-SEP-15 17:45:00 (EST-5)
Location: NORWOOD
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous trees and power lines were downed in the Madisonville area, especially along Roe Street.

Thunderstorm Wind in HAMILTON, OHIO
From 04-SEP-15 17:48:00 to 04-SEP-15 17:50:00 (EST-5)
Location: DAYTON
Magnitude: 60.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A window was blown out of an apartment building on Golden Avenue.