An upper-level disturbance interacting with a very moist airmass triggered a cluster of thunderstorms across east-central Illinois during the morning of July 12th.  The storms were efficient rain-producers and tended to back-build over the same locations, resulting in 4 to 6 inches of rain from southeastern McLean County across northern Piatt County into central and northern Champaign County.  As much as 7 inches of rain was reported in northwestern Champaign County around Mahomet.  As a result of the very heavy rain falling in a short amount of time, widespread flash-flooding occurred.  Numerous roads were closed due to flooding.

Flash Flood in MCLEAN, ILLINOIS
From 12-JUL-14 08:30:00 to 12-JUL-14 14:00:00 (CST-6)
Location: WESTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in extreme northeast McLean County. This resulted in the flash flooding of numerous rural roads around the town of Weston. Parts of U.S. Highway 24 from Chenoa to Fairbury were impassable during the morning and early afternoon.

Flood in PIATT, ILLINOIS
From 12-JUL-14 14:00:00 to 12-JUL-14 20:00:00 (CST-6)
Location: BLUE RIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in northern Piatt County. The highest rain totals ranged between 5.00 to 7.00 inches along and north of U.S. Highway 150, including the city of Mansfield and the village of Blue Ridge. Nearly all rural roads in northern Piatt County were flooded with at least a foot of water. County Road 2 from Mansfield to Blue Ridge sustained damage from the flooding. A five mile stretch of U.S. Highway 150 through Mansfield was closed due to flooding. Parts of Interstate 74 from milepost 164 to 168 were impassable. Many homes in Mansfield also had significant basement flooding. Additional rainfall during the early afternoon kept many roads closed through the late evening hours.

Flood in CHAMPAIGN, ILLINOIS
From 12-JUL-14 14:00:00 to 12-JUL-14 20:00:00 (CST-6)
Location: FOOSLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in northwest and central Champaign County - including the cities of Champaign and Mahomet/Lake of the Woods. The highest rain totals ranged between 6.00 to 7.00 inches from Mahomet to the village of Foosland. Nearly all rural roads in northwest Champaign County were flooded with at least a foot of water. Illinois Route 47 from Gibson City to Mahomet, U.S. Highway 150 from Mansfield to Mahomet, and U.S. Highway 136 near Fisher were closed due to flooding. Parts of Interstate 74 from milepost 168 to 173 were impassable. Numerous streets and viaducts in Mahomet and Champaign were also impassable. Many homes in Mahomet and Champaign also had significant basement flooding. Estimated flood damages in Champaign County were around $47 Million. Periods of additional rainfall during the early afternoon kept many roads closed through the late evening hours.

Flash Flood in CHAMPAIGN, ILLINOIS
From 12-JUL-14 08:30:00 to 12-JUL-14 14:00:00 (CST-6)
Location: FOOSLAND
Flood cause: Heavy Rain
Property damage: 47.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in northwest and central Champaign County - including the cities of Champaign and Mahomet/Lake of the Woods. The highest rain totals ranged between 6.00 to 7.00 inches from Mahomet to the village of Foosland. Nearly all rural roads in northwest Champaign County were flooded with at least a foot of water. Illinois Route 47 from Gibson City to Mahomet, U.S. Highway 150 from Mansfield to Mahomet, and U.S. Highway 136 near Fisher were closed due to flooding. Parts of Interstate 74 from milepost 168 to 173 were impassable. Numerous streets and viaducts in Mahomet and Champaign were also impassable. Many homes in Mahomet and Champaign also had significant basement flooding. Estimated flood damages in Champaign County were around $47 Million.

Flood in MCLEAN, ILLINOIS
From 12-JUL-14 14:00:00 to 12-JUL-14 20:00:00 (CST-6)
Location: WESTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in extreme northeast McLean County. This resulted in the flash flooding of numerous rural roads around the town of Weston. Parts of U.S. Highway 24 from Chenoa to Fairbury were impassable during the morning and early afternoon. Periods of additional rainfall in the early afternoon caused roads to remain closed into the late evening hours.

Flood in MCLEAN, ILLINOIS
From 12-JUL-14 14:00:00 to 12-JUL-14 20:00:00 (CST-6)
Location: ANCHOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in extreme southeast McLean County. The highest rain totals ranged between 6.00 to 7.00 inches from the town of Bellflower, southeast to the Piatt County line. Nearly all rural roads in southeast McLean County were flooded with at least a foot of water. Illinois Route 54 and a 7 mile stretch of U.S. Highway 136 near Bellflower were closed due to flooding. Periods of additional rainfall in the early afternoon kept area roads closed through the late evening hours.

Flash Flood in PIATT, ILLINOIS
From 12-JUL-14 08:30:00 to 12-JUL-14 14:00:00 (CST-6)
Location: BLUE RIDGE
Flood cause: Heavy Rain
Property damage: 1.50M
Crop damage: 0.00K
Reported by: Law Enforcement

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in northern Piatt County. The highest rain totals ranged between 5.00 to 7.00 inches along and north of U.S. Highway 150, including the city of Mansfield and the village of Blue Ridge. Nearly all rural roads in northern Piatt County were flooded with at least a foot of water. County Road 2 from Mansfield to Blue Ridge sustained damage from the flooding.  A five mile stretch of U.S. Highway 150 through Mansfield was closed due to flooding. Parts of Interstate 74 from milepost 164 to 168 were impassable. Many homes in Mansfield also had significant basement flooding.

Flash Flood in MCLEAN, ILLINOIS
From 12-JUL-14 08:30:00 to 12-JUL-14 14:00:00 (CST-6)
Location: ANCHOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Periods of thunderstorms with heavy rainfall produced rain rates of 1 to 2.5 inches for at least two hours from 0630-0830 LST in extreme southeast McLean County. The highest rain totals ranged between 6.00 to 7.00 inches from the town of Bellflower, southeast to the Piatt County line. Nearly all rural roads in southeast McLean County were flooded with at least a foot of water. Illinois Route 54 and a 7 mile stretch of U.S. Highway 136 near Bellflower were closed due to flooding.