Although locally heavy precipitation early in the month allowed for a brief push to flood levels in portions of the Big Sioux Basin, lesser precipitation during the month generally allowed river levels to gradually drop during October 2019.

Flood in MINNEHAHA, SOUTH DAKOTA
From 01-OCT-19 00:00:00 to 10-OCT-19 06:00:00 (CST-6)
Location: BRANDON
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from September, heavy rainfall which averaged 1.00 to 1.50 inches in areas from Dell Rapids to around Sioux Falls maintained early month minor flooding, with a crest of the Big Sioux River near Brandon (gage site BBSS2) at 0.69 feet above flood stage on October 5.  There was continued inundation of agricultural lands along the river. Property damage costs are rough estimates.

Flood in LINCOLN, SOUTH DAKOTA
From 01-OCT-19 00:00:00 to 10-OCT-19 06:00:00 (CST-6)
Location: SHINDLER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from September, heavy rainfall which averaged 1.00 to 1.50 inches in areas from Dell Rapids to around Sioux Falls maintained early month minor flooding, with a crest of the Big Sioux River near Brandon (gage site BBSS2) at 0.69 feet above flood stage on October 5.  There was continued inundation of agricultural lands along the river. Property damage costs are rough estimates.

Flood in UNION, SOUTH DAKOTA
From 01-OCT-19 17:00:00 to 12-OCT-19 04:00:00 (CST-6)
Location: RICHLAND
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Rainfall around October 1, which averaged 1.00 to 1.50 inches around Sioux Falls and 2.00 to 3.50 inches in the Rock River Basin and around Hawarden and Akron, pushed the Big Sioux River near Richland (gage site BSRS2) into minor flood. The river crested 1.40 feet above flood stage on October 8. Significant flooding of agricultural land occurred, with a few county and township roads briefly inundated near the river. Property damage costs are rough estimates.

Flood in MOODY, SOUTH DAKOTA
From 05-OCT-19 04:00:00 to 08-OCT-19 17:00:00 (CST-6)
Location: FLANDREAU
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

After rainfall on October 1 of 1.08 inches in Clear Lake, 0.81 inches in Bruce, and 0.80 inches in Brookings, the Big Sioux River near Brookings (gage site BRKS2) climbed back into flood stage and crested at 0.13 feet above flood stage on October 7.  A few county and township roads were flooded near the gage site, along with a considerable amount of agricultural land. Property damage costs are rough estimates.

Flood in UNION, SOUTH DAKOTA
From 01-OCT-19 21:00:00 to 12-OCT-19 04:00:00 (CST-6)
Location: BIG SPGS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Rainfall around October 1 which averaged 1.00 to 1.50 inches around Sioux Falls and 2.00 to 3.00 inches in the Rock River Basin pushed the Big Sioux River at Akron (gage site AKRI4) into minor flood. The river crested 1.38 feet above flood stage on October 7.  Significant flooding of agricultural land occurred, with a few county and township roads briefly inundated near the river. Property damage costs are rough estimates.

Flood in UNION, SOUTH DAKOTA
From 03-OCT-19 20:00:00 to 09-OCT-19 19:00:00 (CST-6)
Location: ALCESTER
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Rainfall which averaged 1.00 to 1.50 inches around Sioux Falls and from 2.00 to 3.00 inches along the Rock River Basin in northwest Iowa at the start of the month pushed the Big Sioux River above Hawarden (gage site HWDI4) into minor flooding. The river crested 1.52 feet above flood stage on October 6.  Extensive agricultural flooding occurred. Property damage costs are rough estimates.