Melting of a heavy winter snow cover caused moderate flooding of the Vermillion River, and of several other small streams. Flooding of farmland was reported, including some farmland away from the Vermillion River. Several roads were flooded and some of the roads were damaged. High water and groundwater levels resulting from record precipitation in the previous year contributed to the rapid onset of the flooding. The flooding began with warm weather which arrived at the middle of the month, and continued through the end of the month.

Flood in CLAY, SOUTH DAKOTA
From 16-MAR-11 06:00:00 to 31-MAR-11 23:59:00 (CST-6)
Location: IRENE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Melting of a heavy winter snow cover caused light to moderate flooding of the Vermillion River in the northern part of the county. Some small streams in the county were also flooded, as well as farmland and lowland across the county. A few roads were closed by the flooding, and water was running over other roads. The flooding onset was rapid for a snow melt flood due to high water and groundwater levels from record precipitation in the year 2010. The river flooding ended before the end of the month, but some lowland flooding continued.

Flood in MCCOOK, SOUTH DAKOTA
From 16-MAR-11 06:00:00 to 31-MAR-11 23:59:00 (CST-6)
Location: SPENCER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Melting of a heavy winter snow cover caused moderate flooding of the Little Vermillion River, as well as flooding of the East and West Fork Vermillion Rivers, and some small streams and lakes in the county. Farmland as well as other lowlands was flooded in some areas. The Little Vermillion River crested at 2.21 feet above flood stage near Salem on March 17th. A few roads were closed by the flooding, and water was running over other roads. A few roads were heavily damaged, but the amount of damage could not be determined before repairs began. The flooding onset was rapid for a snow melt flood due to high water and groundwater levels from record precipitation in the year 2010. The river flooding ended before the end of the month, but some lowland flooding continued.

Flood in TURNER, SOUTH DAKOTA
From 16-MAR-11 06:00:00 to 31-MAR-11 23:59:00 (CST-6)
Location: DOLTON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Melting of a heavy winter snow cover caused moderate flooding of the Vermillion River, as well as flooding of the East and West Fork Vermillion Rivers, and some small streams and lakes in the county. Farmland as well as other lowlands was flooded in some areas. The Vermillion River crested at 3.0 feet above flood stage near Davis on March 20th. Ice jams threatened more significant flooding of the Davis area, but they were broken up before this happened. A few roads were closed by the flooding, and water was running over other roads. A few roads were heavily damaged, but the amount of damage could not be determined before repairs began. The flooding onset was rapid for a snow melt flood due to high water and groundwater levels from record precipitation in the year 2010. The river flooding ended before the end of the month, but some lowland flooding continued.