The start of significant river flooding began late in December. A very wet pattern developed during the second half of the month. A large upper-level ridge became established over the eastern half of the country, while a large trough formed over the West. This set up a warm southwest flow that brought in copious amounts of moisture.

Flood in GALLATIN, ILLINOIS
From 28-DEC-15 07:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: SHAWNEETOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Ohio River rose above flood stage late in the month, but the crest did not occur until early January. In December, there was flooding of low-lying fields, woodlands, and some river access roads.

Flood in POPE, ILLINOIS
From 29-DEC-15 05:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: GOLCONDA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Ohio River began its rise above flood stage late in the month. The river did not crest until January. The primary impact of the flooding was in low-lying fields and woodlands, as well as bottomland roads.

Flood in PULASKI, ILLINOIS
From 26-DEC-15 12:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: OLMSTED
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Ohio River began its rise above flood stage late in the month. The flooding in December was relatively insignificant compared to the major flooding in January. In December, there was widespread flooding of low-lying fields and woodlands. Some river access roads were underwater.

Flood in MASSAC, ILLINOIS
From 26-DEC-15 21:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: BROOKPORT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Ohio River began its rise above flood stage late in the month. There was considerable flooding of low-lying fields and woodlands. Parts of Fort Massac State Park and some river access roads were underwater. At Brookport, a chronic failure of a flapper gate in the floodwall allowed water to enter the city. Sandbagging and pumping operations were required to minimize the impact to property. In Metropolis, water approached the city streets closest to the river. Floodwater entered the access road and parking lot of a riverboat casino, causing some inconvenience. The flooding continued into January.

Flood in ALEXANDER, ILLINOIS
From 25-DEC-15 20:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: CAIRO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Ohio River began its rise above flood stage late in the month. The flooding in December was relatively insignificant compared to the major flooding in January. In December, there was widespread flooding of low-lying fields and woodlands. The Ohio River bridge connecting U.S. Highway 51/60/62 with Wickliffe, Kentucky was closed due to water over the approach on the Kentucky side. Parts of Fort Defiance State Park and some river access roads were underwater.

Flood in FRANKLIN, ILLINOIS
From 29-DEC-15 05:30:00 to 31-DEC-15 23:59:00 (CST-6)
Location: ZEIGLER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Muddy River rose above flood stage late in the month, but the crest did not occur until early January. There was minor flooding of river access roads, low-lying fields, and woodlands.

Flood in JACKSON, ILLINOIS
From 27-DEC-15 21:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: GRIMSBY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Muddy River began its rise above flood stage late in the month. The flooding in December was relatively insignificant compared to the flooding in January. In December, there was flooding of low-lying fields and woodlands. Some river access roads and parts of a riverside park were underwater.

Flood in WHITE, ILLINOIS
From 28-DEC-15 12:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: CARMI MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Little Wabash River began its rise above flood stage late in the month. The flooding in December was relatively insignificant compared to the flooding in January. In December, there was flooding of low-lying fields and woodlands. A few county roads were inundated.

Flood in WHITE, ILLINOIS
From 30-DEC-15 01:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: MAUNIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Wabash River rose above flood stage late in the month, but the crest did not occur until early January. There was flooding of low-lying fields and woodlands. Some county roads and river access roads were underwater.

Flood in WABASH, ILLINOIS
From 28-DEC-15 23:00:00 to 31-DEC-15 23:59:00 (CST-6)
Location: MT CARMEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Wabash River rose above flood stage late in the month in the Mount Carmel area. The river did not crest until early January. In December, there was flooding of low-lying fields and woodlands.