Several clusters of thunderstorms developed along and north of a warm front extending from northern Missouri into southern Illinois during the afternoon and evening of July 11th.  One of the storms produced a brief tornado near Forsyth and some wind damage in Long Creek in Macon County.  Elsewhere around central Illinois, torrential rainfall created localized flash flooding, across portions of west central Illinois where numerous roads were closed through the morning hours of July 12th due to high water.

Tornado in MACON, ILLINOIS
From 11-JUL-15 20:25:00 to 11-JUL-15 20:26:00 (CST-6)
Location: FORSYTH
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tornado touched down about 0.3 miles south of Forsyth at 9:25 PM CDT.  The tornado snapped several trees at their tops, damaged a shed, destroyed a dog kennel, blew a garage door partially in, and created minor roof damage to two homes before quickly dissipating at 9:26 PM CDT.

Thunderstorm Wind in MASON, ILLINOIS
From 11-JUL-15 12:50:00 to 11-JUL-15 12:55:00 (CST-6)
Location: ECKARD
Magnitude: 52.00 EG
Property damage: 18.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few trees and power lines were blown down.

Thunderstorm Wind in MACON, ILLINOIS
From 11-JUL-15 20:15:00 to 11-JUL-15 20:20:00 (CST-6)
Location: FORSYTH
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few trees were blown down.

Thunderstorm Wind in MACON, ILLINOIS
From 11-JUL-15 21:05:00 to 11-JUL-15 21:10:00 (CST-6)
Location: LONG CREEK
Magnitude: 61.00 EG
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Public

Shingles were blown off several homes, small sheds were damaged, numerous trees were damaged, and power lines were knocked down in Long Creek.

Flash Flood in SCOTT, ILLINOIS
From 11-JUL-15 19:15:00 to 12-JUL-15 01:00:00 (CST-6)
Location: EXETER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several periods of heavy rain during the evening of July 11th produced total rainfall amounts of 3.00 to 5.50 inches of rain. This resulted in flash flooding which created numerous road closures in the county. This included Illinois Route 100, Illinois Route 106 and most rural roads. Water was also over parts of I-72 and many streets were flooded in Winchester.

Flood in SCOTT, ILLINOIS
From 12-JUL-15 01:00:00 to 12-JUL-15 10:00:00 (CST-6)
Location: EXETER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several periods of heavy rain during the evening of July 11th produced total rainfall amounts of 3.00 to 5.50 inches of rain. This resulted in flash flooding which created numerous road closures in the county. This included Illinois Route 100, Illinois Route 106 and most rural roads. Water was also over parts of I-72 and many streets were flooded in Winchester. Due to additional rainfall and the extent of the flash flooding, many roads remained closed through the early morning hours. The flood waters subsided by late morning on July 12th.

Flash Flood in MORGAN, ILLINOIS
From 11-JUL-15 16:45:00 to 12-JUL-15 01:00:00 (CST-6)
Location: MURRAYVILLE
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several periods of heavy rain during the late afternoon of July 11th produced total rainfall amounts of 3.00 to 7.00 inches of rain in southwest Morgan County. This resulted in flash flooding which made all rural roads impassable from northwest of Murrayville to the county line with Greene County and Macoupin County. A rural road near Murrayville was also washed out due to the excessive rainfall and flooding.

Flash Flood in MORGAN, ILLINOIS
From 11-JUL-15 19:15:00 to 12-JUL-15 01:00:00 (CST-6)
Location: MEREDOSIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several periods of heavy rain during the evening of July 11th produced 2.50 to 4.50 inches of rain in northwest and west central Morgan County. Widespread street flooding was reported in much of the city of Jacksonville. Water was over the road on U.S. Highway 67 from Chapin to Meredosia. Rural roads were closed near the Scott County line and in the vicinity of Meredosia.

Flash Flood in KNOX, ILLINOIS
From 11-JUL-15 17:15:00 to 11-JUL-15 20:45:00 (CST-6)
Location: (GBG)GALESBURG ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several rounds of heavy rain during the afternoon of July 11th resulted in 2.50 to 4.00 inches of rain. This produced flash flooding on many rural roads in southern Knox County. Streets were also flooded in Yates City and Maquon.

Flood in MORGAN, ILLINOIS
From 12-JUL-15 01:00:00 to 12-JUL-15 10:00:00 (CST-6)
Location: MURRAYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several periods of heavy rain during the late afternoon of July 11th produced total rainfall amounts of 3.00 to 7.00 inches of rain in southwest Morgan County. This resulted in flash flooding which made all rural roads impassable from northwest of Murrayville to the county line with Greene County and Macoupin County. A rural road near Murrayville was also washed out due to the excessive rainfall and flooding. Due to additional rainfall and the extent of the flash flooding, many roads remained closed through the early morning hours. The flood waters subsided by late morning on July 12th.

Flood in MORGAN, ILLINOIS
From 12-JUL-15 01:00:00 to 12-JUL-15 10:00:00 (CST-6)
Location: MEREDOSIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several periods of heavy rain during the evening of July 11th produced 2.50 to 4.50 inches of rain in northwest and west central Morgan County. Widespread street flooding was reported in much of the city of Jacksonville. Water was over the road on U.S. Highway 67 from Chapin to Meredosia. Rural roads were closed near the Scott County line and in the vicinity of Meredosia. Due to additional rainfall and the extent of the flash flooding, many roads remained closed through the early morning hours. The flood waters subsided by late morning on July 12th.