Thunderstorms developed in an unstable air mass ahead of a cold front. These thunderstorms were capable of producing large hail, damaging winds, heavy rainfall, flooding, and flash flooding. Some of the flooding lingered into the morning of May 22.

Flood in GREENE, OHIO
From 21-MAY-14 20:40:00 to 21-MAY-14 21:40:00 (EST-5)
Location: YELLOW SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water due to earlier flooding was still reported flowing over Grinnell Road near Yellow Springs Creek, as well as flowing over Yellow Springs Road.

Flood in CLARK, OHIO
From 22-MAY-14 01:30:00 to 22-MAY-14 02:30:00 (EST-5)
Location: CRYSTAL LAKES
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water was entering units of an apartment complex in the 11000 block of Gerlaugh Road due to earlier heavy rainfall. This high water eventually forced the evacuation of the apartment complex.

Hail in CLARK, OHIO
From 21-MAY-14 15:50:00 to 21-MAY-14 15:54:00 (EST-5)
Location: BOWLUSVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GREENE, OHIO
From 21-MAY-14 17:12:00 to 21-MAY-14 17:16:00 (EST-5)
Location: FAIRBORN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in UNION, OHIO
From 21-MAY-14 16:35:00 to 21-MAY-14 16:39:00 (EST-5)
Location: MARYSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in FAYETTE, OHIO
From 21-MAY-14 17:27:00 to 21-MAY-14 17:31:00 (EST-5)
Location: WASHINGTON COURT HOU
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MIAMI, OHIO
From 21-MAY-14 18:13:00 to 21-MAY-14 18:17:00 (EST-5)
Location: COVINGTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flood in CLARK, OHIO
From 21-MAY-14 16:36:00 to 21-MAY-14 17:36:00 (EST-5)
Location: VILLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooding was reported in the vicinity of Derr Road due to heavy rainfall.

Heavy Rain in MIAMI, OHIO
From 21-MAY-14 17:00:00 to 21-MAY-14 18:00:00 (EST-5)
Location: TROY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Standing water was reported over many roads in the area.

Hail in GREENE, OHIO
From 21-MAY-14 18:46:00 to 21-MAY-14 18:50:00 (EST-5)
Location: XENIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in GREENE, OHIO
From 21-MAY-14 17:39:00 to 21-MAY-14 17:43:00 (EST-5)
Location: XENIA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DARKE, OHIO
From 21-MAY-14 16:44:00 to 21-MAY-14 16:48:00 (EST-5)
Location: GREENVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in GREENE, OHIO
From 21-MAY-14 18:52:00 to 21-MAY-14 18:56:00 (EST-5)
Location: XENIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLINTON, OHIO
From 21-MAY-14 19:05:00 to 21-MAY-14 19:09:00 (EST-5)
Location: WILMINGTON CLINTON F
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, OHIO
From 21-MAY-14 19:10:00 to 21-MAY-14 19:18:00 (EST-5)
Location: SEAMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, OHIO
From 21-MAY-14 19:20:00 to 21-MAY-14 19:24:00 (EST-5)
Location: JACKSONVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CLINTON, OHIO
From 21-MAY-14 18:20:00 to 21-MAY-14 18:20:00 (EST-5)
Location: NEW VIENNA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CLINTON, OHIO
From 21-MAY-14 18:58:00 to 21-MAY-14 19:02:00 (EST-5)
Location: KINGMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CLINTON, OHIO
From 21-MAY-14 19:19:00 to 21-MAY-14 19:23:00 (EST-5)
Location: MARTINSVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ADAMS, OHIO
From 21-MAY-14 19:25:00 to 21-MAY-14 19:29:00 (EST-5)
Location: DUNKINSVILLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CLERMONT, OHIO
From 21-MAY-14 22:12:00 to 21-MAY-14 22:16:00 (EST-5)
Location: MILFORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CLERMONT, OHIO
From 21-MAY-14 22:23:00 to 21-MAY-14 22:27:00 (EST-5)
Location: MILFORD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DELAWARE, OHIO
From 22-MAY-14 03:33:00 to 22-MAY-14 03:37:00 (EST-5)
Location: DELAWARE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ADAMS, OHIO
From 21-MAY-14 19:20:00 to 21-MAY-14 19:24:00 (EST-5)
Location: JACKSONVILLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:20:00 to 21-MAY-14 15:24:00 (EST-5)
Location: WESTVILLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CLINTON, OHIO
From 21-MAY-14 19:10:00 to 21-MAY-14 19:14:00 (EST-5)
Location: WILMINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in ADAMS, OHIO
From 21-MAY-14 19:13:00 to 21-MAY-14 19:17:00 (EST-5)
Location: LAWSHE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GREENE, OHIO
From 21-MAY-14 17:56:00 to 21-MAY-14 18:00:00 (EST-5)
Location: BOWERSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ADAMS, OHIO
From 21-MAY-14 19:45:00 to 21-MAY-14 19:49:00 (EST-5)
Location: LYNX
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:28:00 to 21-MAY-14 15:32:00 (EST-5)
Location: URBANA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:36:00 to 21-MAY-14 15:40:00 (EST-5)
Location: WESTVILLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONTGOMERY, OHIO
From 21-MAY-14 18:16:00 to 21-MAY-14 18:20:00 (EST-5)
Location: HUBER HGTS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in CLARK, OHIO
From 21-MAY-14 16:00:00 to 21-MAY-14 16:04:00 (EST-5)
Location: EAGLE CITY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was downed due to thunderstorm winds.

Thunderstorm Wind in GREENE, OHIO
From 21-MAY-14 16:50:00 to 21-MAY-14 16:54:00 (EST-5)
Location: XENIA
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A tree was downed near Highway 68 and another tree was downed on power lines and a shed near Parnell Park due to thunderstorm winds.

Thunderstorm Wind in CLINTON, OHIO
From 21-MAY-14 19:11:00 to 21-MAY-14 19:15:00 (EST-5)
Location: WILMINGTON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

One tree was downed due to thunderstorm winds.

Thunderstorm Wind in GREENE, OHIO
From 21-MAY-14 18:45:00 to 21-MAY-14 18:49:00 (EST-5)
Location: XENIA GREENE CO ARPT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree branch was broken off on Shannon Lane due to thunderstorm winds. Another branch fell onto a house on Greystoke Drive.

Thunderstorm Wind in CLARK, OHIO
From 21-MAY-14 16:41:00 to 21-MAY-14 16:45:00 (EST-5)
Location: CRYSTAL LAKES
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree and power line were down in Medway due to thunderstorm winds.

Thunderstorm Wind in CLARK, OHIO
From 21-MAY-14 16:14:00 to 21-MAY-14 16:18:00 (EST-5)
Location: VILLA
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roof damage occurred and windows were blown out near Kenton Ridge High School due to thunderstorm winds.

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:23:00 to 21-MAY-14 15:27:00 (EST-5)
Location: WESTVILLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy Rain in GREENE, OHIO
From 21-MAY-14 17:10:00 to 21-MAY-14 18:10:00 (EST-5)
Location: FAIRBORN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Standing water was reported over many roads in the area.

Flood in MIAMI, OHIO
From 21-MAY-14 17:21:00 to 21-MAY-14 17:25:00 (EST-5)
Location: TIPP CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several city roads were under water due to heavy rainfall.

Flash Flood in MIAMI, OHIO
From 21-MAY-14 17:45:00 to 21-MAY-14 18:45:00 (EST-5)
Location: WEST CHARLESTON
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Water was reported rushing over Studebaker Road in Bethel Township due to heavy rainfall.

Hail in LOGAN, OHIO
From 21-MAY-14 14:35:00 to 21-MAY-14 14:39:00 (EST-5)
Location: QUINCY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHELBY, OHIO
From 21-MAY-14 14:23:00 to 21-MAY-14 14:27:00 (EST-5)
Location: SWANDERS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHELBY, OHIO
From 21-MAY-14 14:27:00 to 21-MAY-14 14:31:00 (EST-5)
Location: SWANDERS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LOGAN, OHIO
From 21-MAY-14 14:36:00 to 21-MAY-14 14:41:00 (EST-5)
Location: DE GRAFF
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MERCER, OHIO
From 21-MAY-14 14:52:00 to 21-MAY-14 14:56:00 (EST-5)
Location: ST HENRY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 14:49:00 to 21-MAY-14 14:53:00 (EST-5)
Location: ROSEWOOD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:15:00 to 21-MAY-14 15:19:00 (EST-5)
Location: WESTVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:18:00 to 21-MAY-14 15:27:00 (EST-5)
Location: WESTVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:29:00 to 21-MAY-14 15:33:00 (EST-5)
Location: URBANA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LOGAN, OHIO
From 21-MAY-14 15:10:00 to 21-MAY-14 15:14:00 (EST-5)
Location: EAST LIBERTY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHAMPAIGN, OHIO
From 21-MAY-14 15:18:00 to 21-MAY-14 15:22:00 (EST-5)
Location: MILLERSTOWN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MIAMI, OHIO
From 21-MAY-14 16:30:00 to 21-MAY-14 16:34:00 (EST-5)
Location: TROY SKYPARK ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in MIAMI, OHIO
From 21-MAY-14 17:57:00 to 21-MAY-14 18:57:00 (EST-5)
Location: BRANDT
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Water was reported rushing over Haskett Lane due to heavy rainfall.

Flash Flood in MONTGOMERY, OHIO
From 21-MAY-14 18:27:00 to 21-MAY-14 19:27:00 (EST-5)
Location: HUBER HGTS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several inches of rushing water were reported across Troy Villa Boulevard due to heavy rainfall.

Flood in CLARK, OHIO
From 21-MAY-14 18:35:00 to 21-MAY-14 19:35:00 (EST-5)
Location: CRYSTAL LAKES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Standing water was reported over Lower Valley Pike due to heavy rainfall.

Flood in GREENE, OHIO
From 21-MAY-14 18:38:00 to 21-MAY-14 19:38:00 (EST-5)
Location: FAIRBORN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A foot of water due to heavy rainfall was reported over State Route 235 just west of Interstate 675. The road was impassible.

Flash Flood in CLARK, OHIO
From 21-MAY-14 18:00:00 to 21-MAY-14 19:00:00 (EST-5)
Location: VILLA
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Over 2 feet of water was flowing over Ridgewood Road due to heavy rainfall.

Flash Flood in CLARK, OHIO
From 21-MAY-14 18:40:00 to 21-MAY-14 19:40:00 (EST-5)
Location: TREMONT CITY
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several locations along Upper Valley Pike were closed due to high water running over the roadway.

Flash Flood in MIAMI, OHIO
From 21-MAY-14 20:00:00 to 21-MAY-14 21:00:00 (EST-5)
Location: NEW CARLISLE ARPT
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Numerous streets throughout Covington were inundated by rapidly rising water due to heavy rainfall.

Hail in MIAMI, OHIO
From 21-MAY-14 16:41:00 to 21-MAY-14 16:47:00 (EST-5)
Location: TIPP CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in DARKE, OHIO
From 21-MAY-14 16:42:00 to 21-MAY-14 16:46:00 (EST-5)
Location: GREENVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONTGOMERY, OHIO
From 21-MAY-14 16:42:00 to 21-MAY-14 16:46:00 (EST-5)
Location: SULPHUR GROVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in MIAMI, OHIO
From 21-MAY-14 18:40:00 to 21-MAY-14 19:40:00 (EST-5)
Location: TIPP CITY
Flood cause: Heavy Rain
Property damage: 1300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Water rescues were being performed across the county, but especially in the Troy and Tipp City areas for people being trapped in cars stranded by flash flooding. The flash flooding was caused by heavy rainfall.

Flash Flood in MONTGOMERY, OHIO
From 21-MAY-14 19:02:00 to 21-MAY-14 20:02:00 (EST-5)
Location: SULPHUR GROVE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 70 was closed in both directions just east of Route 201 in the Huber Heights area due to flash flooding caused by heavy rain.

Flash Flood in CLARK, OHIO
From 21-MAY-14 19:30:00 to 21-MAY-14 20:30:00 (EST-5)
Location: HUSTEAD
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 1.00K
Reported by: Broadcast Media

Young's Dairy Farm was inundated by rapidly rising water caused by heavy rainfall.

Thunderstorm Wind in MONTGOMERY, OHIO
From 21-MAY-14 16:35:00 to 21-MAY-14 16:39:00 (EST-5)
Location: HUBER HGTS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A tree was down and blocking Packard Drive near Kitridge Road due to thunderstorm winds.

Flash Flood in GREENE, OHIO
From 21-MAY-14 18:30:00 to 21-MAY-14 19:30:00 (EST-5)
Location: BRYON
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A driveway was completely washed out on Routzong Road in Xenia Township due to heavy rainfall.

Flash Flood in MIAMI, OHIO
From 21-MAY-14 19:45:00 to 21-MAY-14 20:45:00 (EST-5)
Location: PIQUA
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Interstate 75 at Eldean Road was impassible due to high flowing water caused by heavy rainfall.

Flash Flood in GREENE, OHIO
From 21-MAY-14 20:00:00 to 21-MAY-14 21:00:00 (EST-5)
Location: YELLOW SPGS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Numerous streets throughout Clifton were inundated by rapidly rising water caused by heavy rainfall.

Hail in SHELBY, OHIO
From 21-MAY-14 14:31:00 to 21-MAY-14 14:35:00 (EST-5)
Location: PORT JEFFERSON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GREENE, OHIO
From 21-MAY-14 16:40:00 to 21-MAY-14 16:44:00 (EST-5)
Location: XENIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio