A significant early spring storm wrapped up while moving from Kansas on the morning of Saturday, March 28 to Wisconsin early morning March 29. While temperatures were, in general, too warm for snowfall with the exception of some higher elevation locations receiving 1 to 3 inches of snowfall during the afternoon and evening of March 28, there was appreciable rainfall from 1 to 2 inches from far eastern South Dakota into parts of northwest Iowa and southwest Minnesota.

Flood in LINCOLN, SOUTH DAKOTA
From 29-MAR-20 14:00:00 to 31-MAR-20 04:00:00 (CST-6)
Location: HUDSON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.51 inches at Canton and which averaged 1.00 to 1.50 inches around Sioux Falls, the Big Sioux River at Fairview (gage site FVWS2) rose to minor flood briefly late month. The river crested at 0.51 feet above flood stage on March 30, resulting in minor flooding of crop and pasture land.

Flood in LINCOLN, SOUTH DAKOTA
From 29-MAR-20 14:00:00 to 30-MAR-20 11:00:00 (CST-6)
Location: CANTON MUNI ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.51 inches at Canton and which averaged 1.00 to 1.50 inches around Sioux Falls, the Big Sioux River above Canton (gage site CBSS2) rose to minor flood briefly late month. The river crested at 0.23 feet above flood stage on March 30, resulting in minor flooding of crop and pasture land.

Flood in MOODY, SOUTH DAKOTA
From 27-MAR-20 20:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: FLANDREAU
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 0.91 inches 2 miles south southeast of Astoria, 0.43 inches near White and 0.33 inches 4 miles northeast of Bruce, the Big Sioux River near Brookings (gage site BRKS2) returned to flood at the end of the month.  The river crested 0.68 feet above flood stage on March 31, inundating several rural roads and a great deal of agricultural land. Minor flooding continued at the end of the month.

Flood in MINNEHAHA, SOUTH DAKOTA
From 29-MAR-20 15:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: DELL RAPIDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.55 inches 14 miles north northeast of Sioux Falls, the Big Sioux River below Dell Rapids (gage site DERS2) returned to flood late month.  The river crested at 0.13 feet above flood stage with flooding of agricultural lands near the river.  The river remained at minor flood stage at the end of the month.

Flood in UNION, SOUTH DAKOTA
From 30-MAR-20 07:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: RICHLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.72 inches 6 miles north northeast of Elk Point, 1.58 inches at Rock Valley, 1.51 inches at Canton and 1.37 inches at Akron, the Big Sioux River near Richland (gage site BSRS2) rose above flood stage late month. The river crested at 1.62 feet above flood stage on March 31, resulting in significant flooding of agricultural land. The river remained at minor flood stage at the end of the month.

Flood in MINNEHAHA, SOUTH DAKOTA
From 28-MAR-20 21:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: BRANDON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall which averaged 1.00 to 1.50 inches around the Sioux Falls area, the Big Sioux River at Brandon (gage site BBSS2) returned to flood late month. The river crested at 0.66 feet above flood stage on March 29, resulting in extensive flooding of agricultural land near the river and flooding the north access road to the Big Sioux Recreation Area. The river remained at minor flood stage at the end of the month.

Flood in LINCOLN, SOUTH DAKOTA
From 28-MAR-20 21:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: SHINDLER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall which averaged 1.00 to 1.50 inches around the Sioux Falls area, the Big Sioux River at Brandon (gage site BBSS2) returned to flood late month. The river crested at 0.66 feet above flood stage on March 29, resulting in extensive flooding of agricultural land near the river and flooding the north access road to the Big Sioux Recreation Area. The river remained at minor flood stage at the end of the month.

Flood in MINNEHAHA, SOUTH DAKOTA
From 28-MAR-20 22:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: RENNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.55 inches 14 miles north northeast of Sioux Falls, 1.13 inches 7 miles west of Garretson and 0.85 inches 4 miles northwest of Renner, the Big Sioux River at Sioux Falls I-90 returned to flood late month.  The river crested 0.62 feet above flood stage on March 31, resulting in flooding of agricultural lands near the river north of Sioux Falls.  The river remained at minor flood stage at the end of the month.

Flood in BROOKINGS, SOUTH DAKOTA
From 29-MAR-20 08:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: BRUCE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 0.91 inches 2 miles south southeast of Astoria and 0.43 inches near White, the Big Sioux River near Estelline (gage site BSES2) returned to flood at the end of the month. The river crested 0.38 feet above flood stage on March 29, flooding agricultural land near the river. Minor flooding continued at the end of the month.

Flood in UNION, SOUTH DAKOTA
From 29-MAR-20 09:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: ALCESTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.58 inches at Rock Valley, 1.51 inches at Canton and an average of 1.00 to 1.50 inches around Sioux Falls, the Big Sioux River above Hawarden (gage site HWDI4) returned to flood at the end of the month. The river crested at 2.52 feet above flood stage on March 30, resulting in significant flooding of crop and pasture land. The river remained at minor flood stage at the end of the month.

Flood in UNION, SOUTH DAKOTA
From 29-MAR-20 11:00:00 to 31-MAR-20 23:59:00 (CST-6)
Location: BIG SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

With rainfall of 1.58 inches at Rock Valley, 1.51 inches at Canton and 1.37 inches at Akron, the Big Sioux River at Akron (gage site AKRI4) returned to flood at the end of the month. The river crested at 1.66 feet above flood stage on March 31, resulting in significant flooding of crop and pasture land. The river remained at minor flood stage at the end of the month.