Starting June 20, the area was impacted adversely by several very slow moving mid-level waves which drifted across the northern and central Plains and interacted with a nearly stationary region of baroclinicity during the following week. High precipitable water and persistent lift forcing resulted in a widespread 5 to 9 inches of rainfall, inundating crop and pasture land as well as many roads.

Flood in TURNER, SOUTH DAKOTA
From 21-JUN-18 06:30:00 to 22-JUN-18 10:00:00 (CST-6)
Location: HOOKER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rainfall from the previous day caused significant ponding of water and drastic increases in small stream levels. County roads were closed as waters from Frog Creek and Turkey Ridge Creek inundated roadways.

Flood in TURNER, SOUTH DAKOTA
From 21-JUN-18 05:00:00 to 23-JUN-18 23:00:00 (CST-6)
Location: DOLTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 6.08 at Montrose, 7.59 near Hurley and 8.57 at Marion. Major flooding occurred with significant amounts of crop and pasture land as well as most county roads were inundated as the river crested near Parker (gage site PKRS2) 2.5 feet above flood stage on June 21. The river dropped below flood stage on June 23, but returned above flood stage with moderate flooding again on June 26 before falling back below flood stage on June 28.

Flood in LINCOLN, SOUTH DAKOTA
From 21-JUN-18 07:00:00 to 30-JUN-18 18:00:00 (CST-6)
Location: LENNOX SKIE ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 6.08 at Montrose, 7.59 near Hurley and 8.57 at Marion. Moderate flooding occurred with significant amounts of crop and pasture land as well as a couple of county roads were inundated as the river crested near Davis (gage site DVSS2) 3.4 feet above flood stage on June 23. The river dropped below flood stage on June 30.

Flood in TURNER, SOUTH DAKOTA
From 21-JUN-18 07:00:00 to 30-JUN-18 18:00:00 (CST-6)
Location: PARKER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 6.08 at Montrose, 7.59 near Hurley and 8.57 at Marion. Moderate flooding occurred with significant amounts of crop and pasture land as well as a couple of county roads were inundated as the river crested near Davis (gage site DVSS2) 3.4 feet above flood stage on June 23. The river dropped below flood stage on June 30.

Flood in TURNER, SOUTH DAKOTA
From 21-JUN-18 14:00:00 to 30-JUN-18 23:59:00 (CST-6)
Location: CENTERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 6.08 at Montrose, 7.59 near Hurley and 8.57 at Marion. Major flooding occurred with around 25,000 acres of crop and pasture land inundated between Davis and Wakonda, with water crossing highway 19 south of Centerville as the river crested near Wakonda (gage site WKAS2) 3.5 feet above flood stage on June 25. The river remained at minor flood stage at the end of the month.

Flood in CLAY, SOUTH DAKOTA
From 21-JUN-18 14:00:00 to 30-JUN-18 23:59:00 (CST-6)
Location: WAKONDA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 6.08 at Montrose, 7.59 near Hurley and 8.57 at Marion. Major flooding occurred with around 25,000 acres of crop and pasture land inundated between Davis and Wakonda, with water crossing highway 19 south of Centerville as the river crested near Wakonda (gage site WKAS2) 3.5 feet above flood stage on June 25. The river remained at minor flood stage at the end of the month.

Flood in CLAY, SOUTH DAKOTA
From 26-JUN-18 05:00:00 to 30-JUN-18 23:59:00 (CST-6)
Location: WESTERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A week of periodic heavy rainfall ending June 26 resulted in a widespread 5 to 9 inches of rainfall, much of which occurred on June 20 and 25. Specific weekly totals including 5.21 6 miles southeast of Centerville, 6.08 at Montrose, 7.59 near Hurley, 8.57 at Marion and 10.27 near Vermillion. Moderate flooding occurred with significant amounts of crop and pasture land with several county roads inundated as the river crested at Vermillion (gage site VERS2) 2.8 feet above flood stage on June 28. The river remained in minor flood at the end of the month.