South Dakota, 2019

Flooding in South Dakota, April 16 to 20, 2019

April 16 to 20, 2019 · NWS FSD · 8 events in 7 counties and zones

With liquid equivalent precipitation of 2 to 3 inches over much of southeast South Dakota during the first two weeks of April, many rivers and creeks experienced a rise back into flood stage.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
8

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS FSD wrote it up.

With liquid equivalent precipitation of 2 to 3 inches over much of southeast South Dakota during the first two weeks of April, many rivers and creeks experienced a rise back into flood stage.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at Apr 16, 3:01 AM CST, 59 minutes earlier.

Area forecast discussion, Apr 16, 3:01 AM CST, 59 minutes before
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Hazardous weather outlook, Apr 16, 3:12 AM CST, 48 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
412 AM CDT Tue Apr 16 2019

IAZ001-MNZ071-072-080-081-089-090-097-098-NEZ013-SDZ038>040-050-
052>071-170915-
Lyon-Lincoln-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Dixon-
Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-Moody-
Brule-Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-
Hutchinson-Turner-Bon Homme-Yankton-Clay-Union-
412 AM CDT Tue Apr 16 2019

This Hazardous Weather Outlook is for northwest Iowa, southwest
Minnesota, northeast Nebraska, central South Dakota, east central
South Dakota, south central South Dakota and southeast South Dakota.

.DAY ONE...Today and tonight.

There is chance of showers and a few thunderstorms after midnight
tonight, but severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Showers and a few thunderstorms are expected Wednesday. Severe
weather is not anticipated. However, any rainfall along with snowmelt
during the early part of this week may lead to additional rises on
area rivers and streams.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ002-003-012>014-020>022-031-032-NEZ014-170915-
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista-
Woodbury-Ida-Dakota-
412 AM CDT Tue Apr 16 2019

This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa and northeast Nebraska.

.DAY ONE...Today and tonight.

Showers and a few thunderstorms are expected to develop tonight,
mainly after midnight. Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Showers and thunderstorms are expected Wednesday. The risk of severe
weather is low. However, locally heavy rainfall is possible, which
could lead to additional rises on area rivers and streams.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

8 flood. Local standard time, as filed.

Flood, Minnehaha

When
April 16, 4:00 AM CST to 7:00 PM CST
Where
Minnehaha County, 1.5 mi W of South Sioux Falls to 0.85 mi SSW of South Sioux Falls
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.520, -96.780

Runoff from occasional precipitation in early April returned flooding to city parks near the Big Sioux River in Sioux Falls. The Big Sioux River at Sioux Falls Western Avenue (gage site WAVS2) crested at 0.30 feet above flood stage on April 16.

Flood, Lincoln

When
April 16, 4:00 AM CST to 7:00 PM CST
Where
Lincoln County, 2.57 mi SW of Sioux Falls to 2.14 mi SSW of Sioux Falls
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.500, -96.760

Runoff from occasional precipitation in early April returned flooding to city parks near the Big Sioux River in Sioux Falls. The Big Sioux River at Sioux Falls Western Avenue (gage site WAVS2) crested at 0.30 feet above flood stage on April 16.

Flood, Turner

When
April 16, 5:00 AM CST to April 17, 8:00 PM CST
Where
Turner County, 4.01 mi E of Dolton to 2.13 mi NW of Marion
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.500, -97.300

Runoff from occasional precipitation in early April produced considerable flooding of agricultural lands along the river. The West Fork of the Vermillion River near Parker (gage site PKRS2) crested at 1.09 feet above flood stage on April 17.

Flood, Moody

When
April 16, 5:00 AM CST to 10:00 AM CST
Where
Moody County, 7.37 mi E of Flandreau Muni Arpt to 9.57 mi SE of Flandreau Muni Arpt
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.988, -96.453

Runoff following the major winter storm in mid-April produced brief flooding of agricultural land. Pipestone Creek below Pipestone (gage site PSTM5) crested at 0.10 feet above flood stage on April 16.

Flood, Minnehaha

When
April 16, 11:30 AM CST to April 17, 2:00 PM CST
Where
Minnehaha County, 2 mi W of Garretson to 1 mi NW of Corson
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.720, -96.540

A surge in runoff following a major early spring storm produced another period of flooding for agricultural land between Garretson and the confluence with the Big Sioux River south of Brandon. Split Rock Creek near Corson (gage site COSS2) crested at 0.17 feet above flood stage on April 16.

Flood, Brookings

When
April 17, 7:00 AM CST to April 18, 7:00 PM CST
Where
Brookings County, 2.47 mi W of White to 1.47 mi NNE of (Bkx)brookings Muni
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
44.430, -96.700

Runoff from occasional precipitation in early April produced considerable flooding of agricultural lands along the river. Sixmile Creek above Brookings (gage site SMCS2) crested at 0.48 feet above flood stage on April 18.

Flood, Aurora

When
April 17, 1:30 PM CST to April 20, 9:30 AM CST
Where
Aurora County, 7.67 mi N of Plankinton to 4.91 mi ENE of Plankinton
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.830, -98.500

Runoff from occasional precipitation in early April produced considerable flooding of agricultural lands along the river. Firesteel Creek near Mount Vernon (gage site MTVS2) crested at 0.55 feet above flood stage on April 18.

Flood, Davison

When
April 17, 1:30 PM CST to April 20, 9:30 AM CST
Where
Davison County, 9.09 mi NNW of Mt Vernon to 6.53 mi WNW of Mt Vernon
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.840, -98.325

Runoff from occasional precipitation in early April produced considerable flooding of agricultural lands along the river. Firesteel Creek near Mount Vernon (gage site MTVS2) crested at 0.55 feet above flood stage on April 18.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in South Dakota in 2019Every state in 2019This day in weather historyWarnings in South Dakota, April 2019

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 832729, 832730, 832522, 833051, 833045, 832523, 832520, 832521.