South Dakota flood warnings
There are no flood warnings in South Dakota right now. The last one was issued on September 28, 2026.
Flooding is happening or expected soon, often along rivers or over wide areas, and may last for days.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active flood warnings in South Dakota
None right now. Other active alerts in South Dakota: none.
Flood Warnings in South Dakota by year
South Dakota averaged 110 flood warnings per year from 2016 to 2025, and has had 37 so far in 2026. The most recent was issued on September 28, 2026.
Counties with the most flood warnings
| County | 2016–2025 |
|---|---|
| Minnehaha County | 156 |
| Union County | 116 |
| Codington County | 97 |
| Moody County | 95 |
| Brookings County | 92 |
| Lincoln County | 68 |
| Hamlin County | 54 |
| Spink County | 50 |
| Turner County | 47 |
| Brown County | 45 |
What a flood warning means
A flood warning is issued when flooding is occurring or imminent but develops more slowly than a flash flood. River flood warnings are tied to forecast points on a river or stream and include the expected crest and the flood stage, which tells you how high the water will rise compared with the level where damage begins.
More about flood warnings and the national map →
What to do
- Follow evacuation orders from local officials.
- Move valuables and vehicles to higher ground.
- Never drive through water covering a road; the road bed may be washed out.
More South Dakota alerts
- Tornado Warnings
- Tornado Watches
- Severe Thunderstorm Warnings
- Flash Flood Warnings
- Flood Watches
- Winter Storm Warnings
- Winter Storm Watches
- Winter Weather Advisories
- Blizzard Warnings
- Extreme Cold Warnings
- Cold Weather Advisories
- Freeze Warnings
- Frost Advisories
- Heat Advisories
- High Wind Warnings
- Wind Advisories
- Red Flag Warnings
- Dense Fog Advisories
- All South Dakota alerts