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This probabilistic forecast is issued by the Missouri Basin River Forecast Center.
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Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey
About this graph
Forecasts for the West Fork Vermillion River near Parker are issued as needed during times of high water, but are not routinely available.
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Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 10
Flood Stage: 9
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 13.14 ft on 05/08/1993
(2) 13.08 ft on 09/13/2019
(3) 12.57 ft on 06/16/1984
(4) 12.35 ft on 04/19/1995
(5) 12.33 ft on 03/28/1962
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.32 ft on 05/13/2022
(2) 1.35 ft on 03/25/2021
(3) 6.54 ft on 03/05/2020
(4) 13.08 ft on 09/13/2019
(5) 12.32 ft on 03/14/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
15.5 The bridge on Highway 44 just northwest of Parker is overtopped.
14 The bridge on 274th Street at the gage is overtopped.
13.5 Water reaches the bottom of the bridge on Highway 44 northwest of Parker.
12 Highway 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 456th Ave and 276th St east of Parker will be flooded.
11 Major agricultural flooding begins, and a few county and township roads will begin to flood, including Thunder Valley Ave near the gage site.
10 Moderate flooding of agricultural land begins.
9 Minor flooding of agricultural land begins and the lowest portion of 274th near the gage site may begin to flood.
8 Some flooding of the lowest lying banks and ditches is possible.
(1) Upstream View
(2) Downstream View

Other Real-time and/or Archive Data Sources:

Additional Information Collapse

USGS 7-Day Streamflow Historical Comparison USGS WaterWatch Webpage

How low could the river get?

Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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Page last modified: 2-Nov-2020 7:29 PM
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