Is the South Fork Grand River flooding?
The South Fork Grand River is tracked by 2 USGS streamgauges in South Dakota. This page compares each gauge’s live water level against its official National Weather Service flood stage, refreshed every 15 minutes, so you can tell whether the South Fork Grand River is running normal, rising toward flood stage, or already flooding. 1 of 2 gauges have both a usable water-level reading and a published minor flood stage. Gauges without a published flood stage show water level and flow only. For nearby rivers, see all South Dakota river levels.
River facts
The longest-running gauge on this river is South Fork Grand River at Buffalo SD. The highest level ever recorded there was 15.40 ft on 1 January 1908. Peak records there go back to 1908 (40 annual peaks).
| Gauge | Status | Stage | Flood stage | Updated |
|---|---|---|---|---|
| South Fork Grand River near Cash, SD | No flooding | 0.62 ft | 12 ft | |
| South Fork Grand River at Buffalo SD | No current data | — | — | — |
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.