A warm front lifting northward through central Illinois triggered strong to severe thunderstorms across the area during the late afternoon and evening of May 11th.  Many of the storms produced hail greater than quarter-sized, with the largest stones up to the size of baseballs just north of Towanda in McLean County.  In addition, a few of the cells produced high rainfall rates and localized flash-flooding.  One storm in particular dropped between 2.50 and 3.50 of rain in a short amount of time, causing water to flow across roads in northwest McLean and southeast Woodford counties.

Hail in LAWRENCE, ILLINOIS
From 11-MAY-14 15:28:00 to 11-MAY-14 15:29:00 (CST-6)
Location: SUMNER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHELBY, ILLINOIS
From 11-MAY-14 15:28:00 to 11-MAY-14 15:29:00 (CST-6)
Location: WINDSOR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COLES, ILLINOIS
From 11-MAY-14 15:53:00 to 11-MAY-14 15:54:00 (CST-6)
Location: COOKS MILLS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUMBERLAND, ILLINOIS
From 11-MAY-14 16:40:00 to 11-MAY-14 16:41:00 (CST-6)
Location: GREENUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCLEAN, ILLINOIS
From 11-MAY-14 19:04:00 to 11-MAY-14 19:07:00 (CST-6)
Location: TOWANDA
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail lasted for 3 minutes.

Hail in MCLEAN, ILLINOIS
From 11-MAY-14 19:00:00 to 11-MAY-14 19:01:00 (CST-6)
Location: TOWANDA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUMBERLAND, ILLINOIS
From 11-MAY-14 16:40:00 to 11-MAY-14 16:41:00 (CST-6)
Location: GREENUP
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash Flood in WOODFORD, ILLINOIS
From 11-MAY-14 19:00:00 to 11-MAY-14 22:00:00 (CST-6)
Location: SECOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Very heavy rainfall of 2.50 to 3.00 inches between 1800 and 1900 CST resulted in rapid flash flooding in a small part of southeast Woodford County. Illinois Route 251 and County Road 9  west of Kappa were inundated with water 12 to 18 inches deep. Roads were closed for nearly three hours. The water receded quickly and the flooding ended by late evening.

Hail in CUMBERLAND, ILLINOIS
From 11-MAY-14 16:36:00 to 11-MAY-14 16:37:00 (CST-6)
Location: GREENUP
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Flash Flood in MCLEAN, ILLINOIS
From 11-MAY-14 19:00:00 to 11-MAY-14 22:00:00 (CST-6)
Location: ENRIGHT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Very heavy rainfall of 2.50 to 3.00 inches between 1800 and 1900 CST resulted in rapid flash flooding in a small part of northwest McLean County. County Road 8 near the north edge of Lake Bloomington and County Road 29 south of Gridley were inundated with water 12 to 18 inches deep. These roads, as well as several rural roads, were closed for nearly three hours. The water receded quickly and the flooding ended by late evening.

Hail in SHELBY, ILLINOIS
From 11-MAY-14 15:07:00 to 11-MAY-14 15:08:00 (CST-6)
Location: SHELBYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SHELBY, ILLINOIS
From 11-MAY-14 15:07:00 to 11-MAY-14 15:12:00 (CST-6)
Location: MIDDLESWORTH
Magnitude: 52.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Mesonet

A large metal building was destroyed and several trees were blown down in Middlesworth.  A flag pole was bent at a 90 degree angle.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 11-MAY-14 16:17:00 to 11-MAY-14 16:22:00 (CST-6)
Location: WASHBURN
Magnitude: 52.00 EG
Property damage: 22.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A machine shed was damaged and a power pole was blown over.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 11-MAY-14 16:20:00 to 11-MAY-14 16:25:00 (CST-6)
Location: BENSON
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A machine shed was damaged.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 11-MAY-14 16:22:00 to 11-MAY-14 16:27:00 (CST-6)
Location: BENSON
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof and doors of a machine shed were blown off.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 11-MAY-14 16:20:00 to 11-MAY-14 16:25:00 (CST-6)
Location: MINONK
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree and several power lines were blown down.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 11-MAY-14 16:22:00 to 11-MAY-14 16:27:00 (CST-6)
Location: MINONK
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole was snapped.

Hail in CUMBERLAND, ILLINOIS
From 11-MAY-14 16:38:00 to 11-MAY-14 16:39:00 (CST-6)
Location: GREENUP
Magnitude: 2.00 
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Public

The hail caused roof, siding, and vehicle damage.

Hail in MCLEAN, ILLINOIS
From 11-MAY-14 18:59:00 to 11-MAY-14 19:00:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager