Continued high dam releases, along with another period of very heavy rainfall in the middle of the month, maintained river flooding along much of the Missouri River between Fort Randall and Gavins Point Dams.  Three to eight inches of rainfall was common between September 10 and 12 in basins above Gavins Point Dam.

Flood in CHARLES MIX, SOUTH DAKOTA
From 01-SEP-19 00:00:00 to 15-SEP-19 17:00:00 (CST-6)
Location: GREENWOOD
Flood cause: Planned Dam Release
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from August, the start of September was spent in minor flood stage. The Missouri River near Verdel (gage site MRVN1) crested 0.58 feet above flood stage on September 11. The excessive precipitation of September 10-12 resulted in a decrease in releases from Fort Randall Dam, which rapidly brought the river below flood stage by September 15. Impacts were mainly limited to inundation of agricultural land, as well as closing of numerous recreational boat ramps.

Flood in BON HOMME, SOUTH DAKOTA
From 01-SEP-19 00:00:00 to 15-SEP-19 17:00:00 (CST-6)
Location: PERKINS
Flood cause: Planned Dam Release
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from August, the start of September was spent in minor flood stage. The Missouri River near Verdel (gage site MRVN1) crested 0.58 feet above flood stage on September 11. The excessive precipitation of September 10-12 resulted in a decrease in releases from Fort Randall Dam, which rapidly brought the river below flood stage by September 15. Impacts were mainly limited to inundation of agricultural land, as well as closing of numerous recreational boat ramps.

Flood in CHARLES MIX, SOUTH DAKOTA
From 01-SEP-19 00:00:00 to 11-SEP-19 17:15:00 (CST-6)
Location: PICKSTOWN
Flood cause: Planned Dam Release
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from August, the start of September was spent in moderate flood stage. The Missouri River near Greenwood (gage site GRWS2) crested 1.47 feet above flood stage on September 11. However, the excessive precipitation on September 10-12 led to a drastic drop in Fort Randall dam releases which allowed the river to rapidly fall below flood stage on September 11.  Impacts were mainly limited to inundation of agricultural land, as well as closing of numerous recreational boat ramps.

Flood in BON HOMME, SOUTH DAKOTA
From 01-SEP-19 00:00:00 to 30-SEP-19 23:59:00 (CST-6)
Location: PERKINS
Flood cause: Planned Dam Release
Property damage: 10.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding continued from August, with the entire month remaining in major flood stage. The Missouri River at Niobrara (gage site MRNN1) crested 5.34 feet above flood stage on September 22, which was the second highest crest on record. High water closed numerous recreational boat ramps. The river remained at major flood stage at the end of the month.

Flood in BON HOMME, SOUTH DAKOTA
From 01-SEP-19 00:00:00 to 30-SEP-19 23:59:00 (CST-6)
Location: RUNNING WATER
Flood cause: Planned Dam Release
Property damage: 10.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A continuation of flooding from August, the Missouri River at Springfield (gage site SPGS2) crested at 2.41 feet above flood stage on September 21. High water closed numerous recreational boat ramps, and some camping areas at Springfield Recreational Area. The river remained at moderate flood stage at the end of the month.