An approaching storm system ushered in the warmest air of the month on the 7th. The warm front associated with this system stalled across northern Illinois and Indiana. As a wave passed along this front, rain of 2 to 4 inches fell in the Tippecanoe River Basin from the afternoon of the 7th through the late morning hour of the 8th.
This rain had an immediate impact on the Tippecanoe River. By the evening of the 8th, extensive flooding quickly developed. The warm front remained over northern Illinois and Indiana and after about 24|hours another wave brought 2 to 4 inches of rain to the Tippecanoe River Basin from the evening of the 9th through the morning of the 11th.
With extensive flooding already in progress and saturated ground conditions, major flooding quickly developed along the Tippecanoe River by the morning of the 11th. Flood crests were similar to those|of February 2008.
Many local river residents listened to the Carroll County EMA director about the potential for serious flooding and voluntarily left their homes on the 9th and 10th. A few chose to ride out the flood. Some of these people needed rescued.
Because the heaviest rain was confined to northern Indiana, only the Wabash River in western Indiana and eastern Illinois flooded. This was the 3rd time since late December that extensive lowland flooding occurred along the Wabash. The March flood exceeded the previous two floods from Lafayette to just downstream of Terre Haute on the Wabash River.
The biggest problem caused by the flood along the Wabash was the inconvenience to local traffic that normally used State Road 43, State Road 225 and local roads in the Grandville Bridge area. The flood also caused disruption to the construction of a natural gas pipeline going from the Rocky Mountains to the east coast. This was third delay in three months to construction of the pipeline underneath the Wabash in the Montezuma area.