Two disturbances sliding across the Northern Plains resulted in fairly widespread moderate rainfall from October 9-11.  Another episode of minor to moderate flooding ensued with rain totaling from 1.50 to 2.00 inches throughout the basin on saturated soils.

Flood in LINCOLN, SOUTH DAKOTA
From 11-OCT-18 00:00:00 to 12-OCT-18 20:00:00 (CST-6)
Location: CANTON MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of minor flooding of crop and pasture land as the Big Sioux River at Canton (gage site CBSS2) crested 0.9 feet above flood stage on October 11.

Flood in LINCOLN, SOUTH DAKOTA
From 11-OCT-18 03:00:00 to 12-OCT-18 21:00:00 (CST-6)
Location: SHINDLER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of minor flooding of crop and pasture land as the Big Sioux River at Brandon (gage site BBSS2) crested 0.3 feet above flood stage on October 12.

Flood in UNION, SOUTH DAKOTA
From 10-OCT-18 14:00:00 to 21-OCT-18 02:00:00 (CST-6)
Location: BIG SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of moderate flooding. Significant amounts of agricultural land near the river were inundated, as well as several rural gravel roads near the river. The Big Sioux River at Akron (gage site AKRI4) crested 3.4 feet above flood stage on October 13.

Flood in UNION, SOUTH DAKOTA
From 11-OCT-18 02:00:00 to 21-OCT-18 08:00:00 (CST-6)
Location: RICHLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of moderate flooding. Significant amounts of agricultural land near the river were inundated. The Big Sioux River near Richland (gage site BSRS2) crested 3.1 feet above flood stage on October 14.

Flood in LINCOLN, SOUTH DAKOTA
From 11-OCT-18 02:00:00 to 13-OCT-18 20:00:00 (CST-6)
Location: HUDSON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of minor flooding of crop and pasture land as the Big Sioux River at Fairview (gage site FVWS2) crested 1.3 feet above flood stage on October 12.

Flood in UNION, SOUTH DAKOTA
From 10-OCT-18 09:00:00 to 18-OCT-18 20:00:00 (CST-6)
Location: ALCESTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of moderate flooding. South Dakota Highway 46 was again inundated, and several rural homes were isolated by high water. The Big Sioux River above Hawarden (gage site HWDI4) crested 4.6 feet above flood stage on October 12.

Flood in MINNEHAHA, SOUTH DAKOTA
From 11-OCT-18 03:00:00 to 12-OCT-18 21:00:00 (CST-6)
Location: BRANDON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A steady moderate rainfall during October 9-10 - resulting in 1.50 to 2.00 inches of rainfall - produced yet another period of minor flooding of crop and pasture land as the Big Sioux River at Brandon (gage site BBSS2) crested 0.3 feet above flood stage on October 12.