South Dakota, 2018

Flooding in South Dakota, March 16 to 27, 2018

March 16 to 27, 2018 · NWS FSD · 9 events in 7 counties and zones

Runoff from snow melt along with periods of rainfall through mid March caused minor flooding along portions of the James River. Impacts were found generally in lowland agricultural locations.

Where it happened

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

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  • Heat and drought
  • Cold
  • Fire, smoke and dust
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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
9

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.

Runoff from snow melt along with periods of rainfall through mid March caused minor flooding along portions of the James River. Impacts were found generally in lowland agricultural locations.

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 Mar 15, 9:01 PM CST, 4 hours 59 minutes earlier.

Area forecast discussion, Mar 15, 9:01 PM CST, 4 hours 59 minutes before
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Hazardous weather outlook, Mar 15, 8:27 PM CST, 5 hours 33 minutes before
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The radar

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

Open the radar archive at this moment

Event by event

9 flood. Local standard time, as filed.

Flood, Aurora

When
March 16, 2:00 AM CST to March 23, 8:00 AM CST
Where
Aurora County, 7.67 mi N of Plankinton to 4.91 mi ENE of Plankinton
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.830, -98.500

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along Firesteel Creek. The river reached a crest of 3.0 feet above flood stage near Mount Vernon (gage site MTVS2) on March 17.

Flood, Davison

When
March 16, 2:00 AM CST to March 23, 8:00 AM CST
Where
Davison County, 9.09 mi NNW of Mt Vernon to 6.53 mi WNW of Mt Vernon
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.840, -98.325

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along Firesteel Creek. The river reached a crest of 3.0 feet above flood stage near Mount Vernon (gage site MTVS2) on March 17.

Flood, Sanborn

When
March 18, 8:00 PM CST to March 27, 2:00 AM CST
Where
Sanborn County, 2.13 mi NNE of Letcher to 6.28 mi SSE of Letcher
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.930, -98.120

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 1.1 feet above flood stage near Mitchell (gage site JRMS2) on March 21.

Flood, Davison

When
March 18, 8:00 PM CST to March 27, 2:00 AM CST
Where
Davison County, 4.92 mi N of Loomis to 6.39 mi S of Ethan
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.851, -98.092

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 1.1 feet above flood stage near Mitchell (gage site JRMS2) on March 21.

Flood, Hanson

When
March 18, 8:00 PM CST to March 27, 2:00 AM CST
Where
Hanson County, 4.22 mi NW of Plano to 3.78 mi W of Rockport
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.851, -97.967

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 1.1 feet above flood stage near Mitchell (gage site JRMS2) on March 21.

Flood, Hutchinson

When
March 18, 8:00 PM CST to March 27, 2:00 AM CST
Where
Hutchinson County, 2.41 mi NE of Dimock to 5.37 mi SSE of Milltown
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.499, -97.953

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 1.1 feet above flood stage near Mitchell (gage site JRMS2) on March 21.

Flood, Hutchinson

When
March 18, 8:00 PM CST to March 27, 8:00 AM CST
Where
Hutchinson County, 3.15 mi SSE of Milltown to 2.89 mi S of Olivet
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.380, -97.770

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 0.7 feet above flood stage near Scotland (gage site SCOS2) on March 26.

Flood, Bon Homme

When
March 18, 8:00 PM CST to March 27, 8:00 AM CST
Where
Bon Homme County, 2.49 mi ENE of Scotland to 4.84 mi E of Scotland
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.169, -97.688

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 0.7 feet above flood stage near Scotland (gage site SCOS2) on March 26.

Flood, Yankton

When
March 18, 8:00 PM CST to March 27, 8:00 AM CST
Where
Yankton County, 9.25 mi WNW of Jamesville to 4.79 mi NNW of Lesterville
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
43.169, -97.638

Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along portions of the James River. The river reached a crest of 0.7 feet above flood stage near Scotland (gage site SCOS2) on March 26.

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 2018Every state in 2018This day in weather historyWarnings in South Dakota, March 2018

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 2026-09-24. Each event’s entry at NCEI: 762099, 762100, 761518, 761519, 761520, 761521, 761522, 761523, 761524.