A series of mesoscale convective complexes developed along a stationary front near the Iowa/Missouri border during the early morning hours of June 22nd. This resulted in two rounds of heavy rain and flash flooding on top of already saturated ground in west central and central Illinois.

Flash Flood in LOGAN, ILLINOIS
From 22-JUN-10 09:15:00 to 22-JUN-10 14:00:00 (CST-6)
Location: EMDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Around 1.50 to 2.25 of rain fell between 0845 and 1000 CST on top of already saturated ground. This produced rapid flash flooding in most of Logan County. Many city streets in Lincoln were flooded, which stranded several cars. Nearly one foot of water flowed from the parking lot into part of Lincoln Community High School. Most rural roads west and south of Lincoln were impassable.

Flash Flood in MENARD, ILLINOIS
From 22-JUN-10 09:15:00 to 22-JUN-10 14:00:00 (CST-6)
Location: FANCY PRAIRIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Around 1.50 to 2.25 of rain fell between 0845 and 1000 CST on top of already saturated ground. This produced rapid flash flooding in northern Menard County.
Many rural roads from north of Petersburg to Oakford to Greenview were impassable due to the flash flooding.

Flash Flood in MACON, ILLINOIS
From 22-JUN-10 09:30:00 to 22-JUN-10 14:00:00 (CST-6)
Location: HEMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Around 2.00 to 3.00 of rain fell between 0900 and 1100 CST on top of already saturated ground. This produced rapid flash flooding in most of Macon County. Many city streets in Decatur were flooded, which stranded several cars and flooded hundreds of basements. In addition, most rural roads in the western and central part of the county were impassable.

Flash Flood in KNOX, ILLINOIS
From 22-JUN-10 08:00:00 to 22-JUN-10 12:30:00 (CST-6)
Location: ABINGDON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Around 2.00 of rain fell between 0630 and 0830 CST on top of already saturated ground. This produced rapid flash flooding in southern Knox County from Abingdon to Yates City. Many rural roads were impassable due to the flooding.

Flash Flood in FULTON, ILLINOIS
From 22-JUN-10 08:00:00 to 22-JUN-10 12:30:00 (CST-6)
Location: FARMINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Around 1.50 of rain fell between 0700 and 0800 CST on top of already saturated ground. This produced rapid flash flooding in northern Fulton County. In the village of Farmington a foot of water covered the streets in the downtown. Most rural roads in the northern part of the county were flooded as drainage ditches were overflowing.

Flash Flood in PEORIA, ILLINOIS
From 22-JUN-10 08:00:00 to 22-JUN-10 12:30:00 (CST-6)
Location: ELMWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Around 2.50 of rain fell between 0630 and 0830 CST on top of already saturated ground. This produced rapid flash flooding in western and central Peoria County. Most rural roads were flooded, from Hanna City toward Farmington to Elmwood, as drainage ditches were overflowing.

Flash Flood in SHELBY, ILLINOIS
From 22-JUN-10 08:30:00 to 22-JUN-10 14:00:00 (CST-6)
Location: DOLLVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall amounts of 2.00 to 3.00 were reported from in western Shelby County in a two hour period. Numerous rural roads were reported to be impassable due to the flash flooding.

Flash Flood in MASON, ILLINOIS
From 22-JUN-10 09:15:00 to 22-JUN-10 14:00:00 (CST-6)
Location: KILBOURNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Around 1.50 to 2.25 of rain fell between 0845 and 1000 CST on top of already saturated ground. This produced rapid flash flooding in a small part of southern Mason County. Rural roads in this area were impassable, particularly those near the Logan and Menard County lines.

Flash Flood in CHRISTIAN, ILLINOIS
From 22-JUN-10 08:30:00 to 22-JUN-10 14:00:00 (CST-6)
Location: LANGLEYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall amounts of 2.00 to 3.00 were reported from Taylorville through Pana to the Shelby County line in a two hour period. Many streets in the village of Pana were flooded and impassable. Numerous rural roads in southeast Christian County were also reported to be impassable.