An upper-level disturbance interacting with a stationary frontal boundary brought a round of showers and thunderstorms to portions of central Illinois during the late afternoon and evening of June 14th.  Due to copious amounts of moisture in the environment, some of the storms produced excessive rainfall rates that led to localized flash flooding.  Rainfall amounts of 4 to 6 inches occurred in a 2 to 3-hour time span across parts of McLean, Peoria and Knox counties. Other, spotty flash flooding was reported in parts of central and east central Illinois.

Flash Flood in PEORIA, ILLINOIS
From 14-JUN-15 18:45:00 to 14-JUN-15 23:45:00 (CST-6)
Location: ELMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms with rainfall rates of 1.00 to 1.50 per hour persisted for nearly three hours in extreme northwest Peoria County. Observers reported 3.00 to 6.00 of rain on ground already saturated by flooding the previous week. The flooding made Illinois Route 78 near the Stark County line impassable. Many rural roads in the vicinity of the village of Elmore were also flooded.

Flash Flood in CHAMPAIGN, ILLINOIS
From 14-JUN-15 15:00:00 to 14-JUN-15 18:00:00 (CST-6)
Location: DICKERSON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced up to 2.00 of rain in less than one hour in northwest Champaign County during the mid-afternoon of June 14th. Several rural roads from Fisher to Mahomet were impassable until early evening.

Flash Flood in MCLEAN, ILLINOIS
From 14-JUN-15 16:45:00 to 14-JUN-15 23:00:00 (CST-6)
Location: SHIRLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced very heavy rain of 4.00 to 5.00 in one hour in southwest McLean County. Extensive street and basement flooding was reported in Heyworth, for the second time in one week, where 5.00 of rain was reported. Rural roads were also flooded from Shirley to McLean to Heyworth.

Flash Flood in MCLEAN, ILLINOIS
From 14-JUN-15 17:30:00 to 14-JUN-15 23:00:00 (CST-6)
Location: COLFAX
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms produced more than 4.00 of rain in 90 minutes across a small part of northeast McLean County. Many rural roads from Lexington to Cooksville to Colfax were impassable through the late evening hours of June 14th.

Flash Flood in MENARD, ILLINOIS
From 14-JUN-15 15:45:00 to 14-JUN-15 22:00:00 (CST-6)
Location: GREENVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms with heavy rain produced more than 2.00 of rain in one hour in a small part of central Menard County. Several roads were impassable, including Illinois Route 29 south of Greenview, Illinois Route 123 east of Petersburg and rural roads between Petersburg and Sweetwater.

Flash Flood in KNOX, ILLINOIS
From 14-JUN-15 18:45:00 to 14-JUN-15 23:45:00 (CST-6)
Location: OAK RUN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms with rainfall rates of 1.00 to 1.50 per hour persisted for nearly three hours in parts of eastern Knox County. Observers reported 3.00 to 6.00 of rain on ground already saturated by flooding the previous week. The flooding made Illinois Route 180 north of Williamsfield impassable. Many rural roads from Oak Run to Williamsfield were also flooded.

Flash Flood in STARK, ILLINOIS
From 14-JUN-15 18:30:00 to 14-JUN-15 23:30:00 (CST-6)
Location: WEST JERSEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms with rainfall rates of 1.00 to 1.50 per hour persisted for nearly three hours in much of Stark County. Observers reported 3.00 to 4.00 of rain on ground already saturated during the previous week. Many rural roads from West Jersey to Toulon to Wyoming were impassable.