South Dakota, 2019

Flood in South Dakota, August 3 to 4, 2019

August 3 to 4, 2019 · NWS ABR · 1 event in 1 county or zone

Heavy rainfall caused the Big Sioux River near Florence to go above the flood stage of 8 feet on August 3rd and then quickly back below flood stage on August 4th.

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
1

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 ABR wrote it up.

Heavy rainfall caused the Big Sioux River near Florence to go above the flood stage of 8 feet on August 3rd and then quickly back below flood stage on August 4th.

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 Aberdeen, SD wrote its last area forecast discussion before the first event at Aug 3, 5:24 PM CST, 3 hours 6 minutes earlier.

Area forecast discussion, Aug 3, 5:24 PM CST, 3 hours 6 minutes before
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Hazardous weather outlook, Aug 3, 4:40 AM CST, 15 hours 50 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

1 flood. Local standard time, as filed.

Flood, Grant

When
August 3, 8:30 PM CST to August 4, 1:15 PM CST
Where
Grant County, 7.7 mi NNE of Hiland to 4.93 mi NE of Hiland
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
45.280, -97.130

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, August 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 2026-09-24. Each event’s entry at NCEI: 850706.