West Fork Vermillion River near Parker, SD
River level and flood forecast · Turner County
Normal1.3 ftas of Mon 3:15 PM
The river is 7.7 ft below flood stage (9 ft).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 10 ft |
| Flood stage | 9 ft |
| Action stage | 8 ft |
| Record crest (June 22, 2024) | 15.51 ft |
What floods at each level
From the National Weather Service, highest first.
- 15.5 ftThe bridge on Highway 44 just northwest of Parker is overtopped.
- 14 ftThe bridge on 274th Street at the gage is overtopped.
- 13.5 ftThe bridge on 275th over the West Fork of the river east of Parker is overtopped. Water reaches the bottom of the bridge on Highway 44 northwest of Parker.
- 13 ft275th St east of Parker is flooded. The bridges on 453rd and 454th north of Parker are both overtopped.
- 12 ftHighway 44 begins to flood as do numerous county and township roads. Thunder Valley drag strip starts to see flooding of fields and grandstand areas.
- 11.5 ft456th Ave and 276th St east of Parker will be flooded.
- 11 ftMajor agricultural flooding begins, and a few county and township roads will begin to flood, including Thunder Valley Ave near the gage site.
- 10 ftThe lowest portion of 453rd and W 6th St on the north side of Parker may flood. Moderate flooding of agricultural land begins.
- 9 ftMinor flooding of agricultural land begins and the lowest portion of 274th near the gage site may begin to flood.
- 8 ftSome flooding of the lowest lying banks and ditches is possible.
Highest crests on record
- 15.51 ft — June 22, 2024
- 13.14 ft — May 8, 1993
- 13.08 ft — September 13, 2019
- 12.57 ft — June 16, 1984
- 12.35 ft — April 19, 1995
Recent crests: 3.54 ft (August 7, 2025) · 15.51 ft (June 22, 2024) · 6.05 ft (April 2, 2023) · 2.32 ft (May 13, 2022) · 1.35 ft (March 25, 2021)
Up and down the river, and nearby
- East Fork Vermillion River near Parker, SD
- Skunk Creek near Hartford, SD
- Skunk Creek at Sioux Falls, SD
- Big Sioux River at Sioux Falls Western Avenue, SD
- Willow Creek near Crooks, SD
- Big Sioux River at Sioux Falls Maple Street, SD
- James River near Scotland, SD
- Big Sioux River at Sioux Falls N. Cliff Avenue, SD
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PKRS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.