Major impacts from Missouri River flooding continued into early August, with flooding varying from minor to major, and evacuated areas remaining evacuated. The water levels receded very slowly during the month, and effects of the flooding began to abate, also very slowly. However in many places, extent of the damage to homes, businesses, parks, recreation areas, and other lowlands was beginning to become evident. Highest river levels were very early in August; in most cases on the first day of the month.

Flood in CLAY, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 31-AUG-11 23:59:00 (CST-6)
Location: MECKLING
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flooding from upstream spring snowmelt and subsequent heavy rain continued at  moderate levels at the start of August.  Lowlands along the river including numerous roads, parks, recreational areas and several homes remained flooded. Thousands of acres of usually dry land, including several farms, remained flooded. The river fell slowly during the month. The highest stage at Gayville was 1.4 feet above flood stage on August 1st.

Flood in UNION, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 31-AUG-11 23:59:00 (CST-6)
Location: JUNCTION CITY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flooding from upstream spring snowmelt and subsequent heavy rain continued at  moderate to major levels at the start of August.  Lowlands along the river including numerous roads, parks, recreational areas and homes remained flooded. Thousands of acres of usually dry land, including several farms, remained flooded. Most of the Dakota Dunes community remained flooded, with many residents and business owners still displaced. The river fell slowly during the month. The highest stage near Ponca, Nebraska, was a record 8.6 feet above flood stage on August 1st.

Flood in BON HOMME, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 31-AUG-11 23:59:00 (CST-6)
Location: PERKINS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding from upstream spring snowmelt and subsequent heavy rain continued at moderate to major levels at the start of August. Lowlands along the river including numerous roads, parks, recreational areas including a golf course, and several homes remaining flooded. Thousands of acres of usually dry land, including several farms, remained flooded. The river fell slowly during most of the month. The highest stage near Springfield was 3.9 feet above flood stage on August 1st.

Flood in YANKTON, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 31-AUG-11 23:59:00 (CST-6)
Location: UTICA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding from upstream spring snowmelt and subsequent heavy rain continued at moderate to major levels at the start of August.  Lowlands along the river east of Lewis and Clark Lake including numerous roads, parks, recreational areas and several homes remained flooded. The flooding included the Larson's Landing development west of Yankton with most homes and recreational vehicles there remaining flooded. Thousands of acres of usually dry land, including several farms, remained flooded.  The river fell slowly during the month. The highest stage at Yankton was 5.5 feet above flood stage on August 1st.

Flood in BRULE, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 22-AUG-11 18:00:00 (CST-6)
Location: CHAMBERLAIN ARPT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding from upstream spring snowmelt and subsequent heavy rain continued at major levels at the start of August, with lowlands along the river including several roads and recreational areas remaining flooded. The river fell slowly during the month, falling below flood stage at Chamberlain on August 22nd. The highest stage at Chamberlain was 5.5 feet above flood stage on August 1st.

Flood in CHARLES MIX, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 31-AUG-11 23:59:00 (CST-6)
Location: ACADEMY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding from upstream spring snowmelt and subsequent heavy rain continued at major levels at the start of August. Lowlands along the river including numerous roads and recreational areas and some homes remaining flooded. The river fell slowly during most of the month. The highest stage near Greenwood was 8.2 feet above flood stage on August 6th.

Flood in GREGORY, SOUTH DAKOTA
From 01-AUG-11 00:00:00 to 22-AUG-11 18:00:00 (CST-6)
Location: DIXON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Flooding from upstream spring snowmelt and subsequent heavy rain, affecting mainly the east shore of the Missouri River, also continued to affect parts of the Gregory County shore early in the month. A few roads and recreational areas near the river remained flooded.