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FloodSmart
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Hydrograph River at a Glance Download
Snake Creek near Ashton Stage (ft)SNKS2(plotting HGIRZ) Graph Created (12:00PM Dec 15, 2019)Flood Stage is 11.5 ft
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About this graph
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Datum: Not Available
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Snake Creek near Ashton are issued as needed during times of high water, but are not routinely available.

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Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 13
Flood Stage: 11.5
Action Stage: 9.5
Low Stage (in feet): -9999

Historic Crests
(1) 20.74 ft on 04/01/1997
(2) 19.79 ft on 03/20/2010
(3) 17.45 ft on 03/24/2011
(4) 17.21 ft on 04/10/1969
(5) 16.20 ft on 03/31/1978
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.45 ft on 03/24/2011
(2) 19.79 ft on 03/20/2010
(3) 20.74 ft on 04/01/1997
(4) 12.87 ft on 03/30/1989
(5) 5.21 ft on 04/03/1987
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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Gauge LocationGauge Map Marker
 Disclaimer
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
21 The Highway 281 bridge at the gauge and the bridge 2 miles west of Ashton are both overtopped
19 The water reaches the bottom of the Highway 281 bridge at the gauge
18 The water reaches the bottom of the bridge 2 miles west of Ashton
15.5 The bridges 1 mile east and 1 mile northwest of the gauge are both overtopped
13 The water reaches the bottom of the bridge 1 mile east of the gauge and the bridge 1 mile northwest of the gauge
About This Location Collapse

Latitude: 44.959167° N, Longitude: 98.515278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
This location became an official NWS river forecast point on Monday, May 13, 2019. Routine high-water forecasts will be issued from that date forward.
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Hydrologic Resources Additional Resources
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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
Aberdeen Weather Forecast Office
824 Brown County 14 South
Aberdeen, SD 57401
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