An area of low pressure moved through the central great lakes on May 21st with a cold front moving into northern Ohio during the evening. Several severe thunderstorms developed in the unstable air ahead of the cold front. During the late afternoon thunderstorms were mainly focused across central Ohio and quarter size hail was reported across Morrow County. Later that evening thunderstorms filled in over Lake Erie and moved inland off the lake.  These thunderstorms produced quarter size hail in many locations from Port Clinton in Ottawa County to Madison in Lake County.  The thunderstorms in northeast Ohio also caused flash flooding in Lake and Ashtabula Counties.  Madison in Lake County was one of the hardest hit areas where a tributary of the Arcola Creek came out of its banks and flooded Main Street and portions of the downtown area with up to 4 feet of water.

Flash Flood in LAKE, OHIO
From 21-MAY-14 22:10:00 to 22-MAY-14 01:00:00 (EST-5)
Location: MADISON WOODWORTH AR
Flood cause: Heavy Rain
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Law Enforcement

On the evening of May 21st heavy rain measured at 2.5 inches between 930 pm and 11 pm caused widespread flash flooding in the town of Madison. A tributary to the Arcola Creek which runs through downtown Madison came out of it's banks and flooded Main Street and Safford Street with water flowing higher than the fire hydrants at an estimated four feet deep. The hardest hit areas were in the east of town where numerous basements flooded.  Numerous roads in town were closed due to backed up storm drainage. The flood waters receded around 2 am.

Flash Flood in ASHTABULA, OHIO
From 21-MAY-14 22:25:00 to 22-MAY-14 00:00:00 (EST-5)
Location: GENEVA
Flood cause: Heavy Rain
Property damage: 150.00K
Crop damage: 0.00K
Reported by: State Official

A tributary to the Ashtabula River came out of its banks on the evening of May 21st after an estimated 2 inches of rain fell within an hour and a half. The small unnamed creek came out of it's banks near the University Hospital Medical Center near Britton Drive. A trailer park was inundated with several feet of water from this same creek, yet the raised levels of the trailers prevented flooding in the homes. A construction site near the creek sustained significant damages to supplies from the fast moving water. Main Street was closed just west of town due to the same creek's floodwaters.

Hail in MORROW, OHIO
From 21-MAY-14 16:31:00 to 21-MAY-14 16:35:00 (EST-5)
Location: FULTON
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter and county dispatch reported quarter size hail.

Hail in RICHLAND, OHIO
From 21-MAY-14 17:24:00 to 21-MAY-14 17:24:00 (EST-5)
Location: BELLVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Channel 3 relayed a report of penny size hail in Bellville.

Hail in OTTAWA, OHIO
From 21-MAY-14 19:40:00 to 21-MAY-14 19:40:00 (EST-5)
Location: PORT CLINTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio operator reported penny size hail in Port Clinton.

Hail in LAKE, OHIO
From 21-MAY-14 20:50:00 to 21-MAY-14 20:50:00 (EST-5)
Location: MADISON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny to nickel sized hail was observed.

Hail in ERIE, OHIO
From 21-MAY-14 19:45:00 to 21-MAY-14 19:45:00 (EST-5)
Location: PAKERTOWN
Magnitude: 1.50 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Ping pong ball sized hail was reported.

Hail in ASHLAND, OHIO
From 21-MAY-14 22:00:00 to 21-MAY-14 22:00:00 (EST-5)
Location: MIFFLIN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny to nickel sized hail was observed.

Hail in LORAIN, OHIO
From 21-MAY-14 20:07:00 to 21-MAY-14 20:07:00 (EST-5)
Location: CLEARVIEW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur Radio operator reported penny size hail in Lorain.

Hail in ERIE, OHIO
From 21-MAY-14 20:09:00 to 21-MAY-14 20:15:00 (EST-5)
Location: WEYERS
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur Radio reported penny to quarter size hail.

Hail in SANDUSKY, OHIO
From 21-MAY-14 19:50:00 to 21-MAY-14 19:50:00 (EST-5)
Location: BELLEVUE
Magnitude: 1.50 
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained weather spotter estimated ping pong ball size hail.

Hail in LAKE, OHIO
From 21-MAY-14 20:52:00 to 21-MAY-14 20:54:00 (EST-5)
Location: MADISON
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media and county dispatch relayed reports of quarter size hail in Madison.

Thunderstorm Wind in HURON, OHIO
From 21-MAY-14 20:40:00 to 21-MAY-14 20:45:00 (EST-5)
Location: NORWALK
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

A three foot diameter tree was uprooted and another tree fell on a house in Norwalk.

Hail in ASHLAND, OHIO
From 21-MAY-14 22:01:00 to 21-MAY-14 22:01:00 (EST-5)
Location: HAYESVILLE
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained weather spotter reported quarter size hail.

Thunderstorm Wind in ASHLAND, OHIO
From 21-MAY-14 22:02:00 to 21-MAY-14 22:02:00 (EST-5)
Location: ASHLAND
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained weather spotter reported a tree down at a residence.

Hail in RICHLAND, OHIO
From 21-MAY-14 22:30:00 to 21-MAY-14 22:30:00 (EST-5)
Location: MANSFIELD
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained weather spotter reported quarter size hail in Mansfield.

Hail in RICHLAND, OHIO
From 21-MAY-14 22:55:00 to 21-MAY-14 22:55:00 (EST-5)
Location: PAVONIA
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The public reported nickel to quarter size hail near Mansfield.

Hail in TRUMBULL, OHIO
From 21-MAY-14 22:25:00 to 21-MAY-14 22:25:00 (EST-5)
Location: KINSMAN
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The media relayed a report of ping pong ball size hail near Kinsman.

Hail in SANDUSKY, OHIO
From 21-MAY-14 20:00:00 to 21-MAY-14 20:00:00 (EST-5)
Location: BELLEVUE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Penny sized hail was reported.