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Hydrograph River at a Glance Download
Willow Creek (NW IA) near Oyens Stage (ft)Observed: 1253.85 ft at 6:00PM Jan 10, 2021Observed: 1253.84 ft at 7:00PM Jan 10, 2021Observed: 1253.85 ft at 8:00PM Jan 10, 2021Observed: 1253.83 ft at 9:00PM Jan 10, 2021Observed: 1253.83 ft at 10:00PM Jan 10, 2021Observed: 1253.79 ft at 11:00PM Jan 10, 2021Observed: 1253.77 ft at 12:00AM Jan 11, 2021Observed: 1253.83 ft at 1:00AM Jan 11, 2021Observed: 1253.83 ft at 2:00AM Jan 11, 2021Observed: 1253.81 ft at 3:00AM Jan 11, 2021Observed: 1253.84 ft at 4:00AM Jan 11, 2021Observed: 1253.83 ft at 5:00AM Jan 11, 2021Observed: 1253.84 ft at 6:00AM Jan 11, 2021Observed: 1253.84 ft at 7:00AM Jan 11, 2021Observed: 1253.83 ft at 8:00AM Jan 11, 2021Observed: 1253.87 ft at 9:00AM Jan 11, 2021Observed: 1253.86 ft at 10:00AM Jan 11, 2021Observed: 1253.88 ft at 11:00AM Jan 11, 2021Observed: 1253.87 ft at 12:00PM Jan 11, 2021Observed: 1253.85 ft at 1:00PM Jan 11, 2021Observed: 1253.78 ft at 2:00PM Jan 11, 2021Observed: 1253.77 ft at 3:00PM Jan 11, 2021Observed: 1253.77 ft at 4:00PM Jan 11, 2021Observed: 1253.79 ft at 5:00PM Jan 11, 2021Observed: 1253.77 ft at 6:00PM Jan 11, 2021Observed: 1253.87 ft at 7:00PM Jan 11, 2021Observed: 1253.75 ft at 8:00PM Jan 11, 2021Observed: 1253.74 ft at 9:00PM Jan 11, 2021Observed: 1253.71 ft at 10:00PM Jan 11, 2021Observed: 1253.71 ft at 11:00PM Jan 11, 2021Observed: 1253.75 ft at 12:00AM Jan 12, 2021Observed: 1253.73 ft at 1:00AM Jan 12, 2021Observed: 1253.71 ft at 2:00AM Jan 12, 2021Observed: 1253.72 ft at 3:00AM Jan 12, 2021Observed: 1253.74 ft at 4:00AM Jan 12, 2021Observed: 1253.76 ft at 5:00AM Jan 12, 2021Observed: 1253.76 ft at 6:00AM Jan 12, 2021Observed: 1253.74 ft at 7:00AM Jan 12, 2021Observed: 1253.77 ft at 8:00AM Jan 12, 2021Observed: 1253.87 ft at 9:00AM Jan 12, 2021Observed: 1253.9 ft at 10:00AM Jan 12, 2021Observed: 1253.92 ft at 11:00AM Jan 12, 2021Observed: 1253.7 ft at 4:00PM Jan 12, 2021Observed: 1253.65 ft at 5:00PM Jan 12, 2021Observed: 1253.74 ft at 6:00PM Jan 12, 2021Observed: 1253.73 ft at 7:00PM Jan 12, 2021Observed: 1253.7 ft at 8:00PM Jan 12, 2021Observed: 1253.74 ft at 9:00PM Jan 12, 2021Observed: 1253.79 ft at 10:00PM Jan 12, 2021Observed: 1253.76 ft at 11:00PM Jan 12, 2021Observed: 1253.72 ft at 12:00AM Jan 13, 2021Observed: 1253.75 ft at 1:00AM Jan 13, 2021Observed: 1253.71 ft at 2:00AM Jan 13, 2021Observed: 1253.71 ft at 3:00AM Jan 13, 2021Observed: 1253.81 ft at 4:00AM Jan 13, 2021Observed: 1253.81 ft at 5:00AM Jan 13, 2021Observed: 1253.88 ft at 6:00AM Jan 13, 2021Observed: 1253.83 ft at 7:00AM Jan 13, 2021Observed: 1253.83 ft at 8:00AM Jan 13, 2021Observed: 1253.84 ft at 9:00AM Jan 13, 2021Observed: 1253.86 ft at 10:00AM Jan 13, 2021Observed: 1253.85 ft at 11:00AM Jan 13, 2021Observed: 1253.85 ft at 12:00PM Jan 13, 2021Observed: 1253.82 ft at 1:00PM Jan 13, 2021Observed: 1253.74 ft at 2:00PM Jan 13, 2021Observed: 1253.67 ft at 3:00PM Jan 13, 2021Observed: 1253.62 ft at 4:00PM Jan 13, 2021Observed: 1253.68 ft at 5:00PM Jan 13, 2021Observed: 1253.71 ft at 6:00PM Jan 13, 2021Observed: 1253.74 ft at 7:00PM Jan 13, 2021Observed: 1253.76 ft at 8:00PM Jan 13, 2021Observed: 1253.75 ft at 9:00PM Jan 13, 2021Observed: 1253.79 ft at 10:00PM Jan 13, 2021Observed: 1253.8 ft at 11:00PM Jan 13, 2021Observed: 1253.81 ft at 12:00AM Jan 14, 2021Observed: 1253.84 ft at 1:00AM Jan 14, 2021Observed: 1253.87 ft at 2:00AM Jan 14, 2021Observed: 1253.82 ft at 3:00AM Jan 14, 2021Observed: 1253.81 ft at 4:00AM Jan 14, 2021Observed: 1253.8 ft at 5:00AM Jan 14, 2021Observed: 1253.82 ft at 6:00AM Jan 14, 2021Observed: 1253.82 ft at 7:00AM Jan 14, 2021Observed: 1253.81 ft at 8:00AM Jan 14, 2021Observed: 1253.82 ft at 9:00AM Jan 14, 2021Observed: 1253.82 ft at 10:00AM Jan 14, 2021Observed: 1253.86 ft at 11:00AM Jan 14, 2021Observed: 1254.01 ft at 12:00PM Jan 14, 2021Observed: 1253.99 ft at 1:00PM Jan 14, 2021Observed: 1253.94 ft at 2:00PM Jan 14, 2021Observed: 1253.81 ft at 3:00PM Jan 14, 2021Observed: 1253.78 ft at 4:00PM Jan 14, 2021Observed: 1253.78 ft at 5:00PM Jan 14, 2021Observed: 1253.76 ft at 6:00PM Jan 14, 2021Observed: 1253.75 ft at 7:00PM Jan 14, 2021Observed: 1253.74 ft at 8:00PM Jan 14, 2021Observed: 1253.75 ft at 9:00PM Jan 14, 2021Observed: 1253.75 ft at 10:00PM Jan 14, 2021Observed: 1253.73 ft at 11:00PM Jan 14, 2021Observed: 1253.76 ft at 12:00AM Jan 15, 2021Observed: 1253.76 ft at 1:00AM Jan 15, 2021Observed: 1253.74 ft at 2:00AM Jan 15, 2021Observed: 1253.73 ft at 3:00AM Jan 15, 2021Observed: 1253.77 ft at 4:00AM Jan 15, 2021Observed: 1253.76 ft at 5:00AM Jan 15, 2021Observed: 1253.68 ft at 6:00AM Jan 15, 2021Observed: 1253.91 ft at 7:00AM Jan 15, 2021Observed: 1253.66 ft at 9:00AM Jan 15, 2021Observed: 1254.46 ft at 12:00PM Jan 15, 2021Observed: 1254.72 ft at 3:00PM Jan 15, 2021Observed: 1254.69 ft at 4:00PM Jan 15, 2021Observed: 1254.8 ft at 6:00PM Jan 15, 2021Observed: 1254.75 ft at 7:00PM Jan 15, 2021Observed: 1254.73 ft at 8:00PM Jan 15, 2021Observed: 1254.88 ft at 9:00PM Jan 15, 2021Observed: 1254.84 ft at 10:00PM Jan 15, 2021Observed: 1254.86 ft at 11:00PM Jan 15, 2021Observed: 1254.83 ft at 12:00AM Jan 16, 2021Highest Observation: 1254.9 ft at 12:15AM Jan 16, 2021Observed: 1254.81 ft at 1:00AM Jan 16, 2021Observed: 1254.89 ft at 2:00AM Jan 16, 2021Observed: 1254.88 ft at 3:00AM Jan 16, 2021Observed: 1254.81 ft at 4:00AM Jan 16, 2021Observed: 1254.79 ft at 5:00AM Jan 16, 2021Observed: 1254.8 ft at 6:00AM Jan 16, 2021Observed: 1254.78 ft at 7:00AM Jan 16, 2021Observed: 1254.72 ft at 8:00AM Jan 16, 2021Observed: 1254.74 ft at 9:00AM Jan 16, 2021Observed: 1254.81 ft at 10:00AM Jan 16, 2021Observed: 1254.77 ft at 11:00AM Jan 16, 2021Observed: 1254.77 ft at 12:00PM Jan 16, 2021Observed: 1254.77 ft at 1:00PM Jan 16, 2021Observed: 1254.78 ft at 2:00PM Jan 16, 2021Observed: 1254.77 ft at 3:00PM Jan 16, 2021Observed: 1254.78 ft at 4:00PM Jan 16, 2021Observed: 1254.74 ft at 5:00PM Jan 16, 2021Observed: 1254.74 ft at 6:00PM Jan 16, 2021Observed: 1254.73 ft at 7:00PM Jan 16, 2021Observed: 1254.67 ft at 8:00PM Jan 16, 2021Observed: 1254.73 ft at 9:00PM Jan 16, 2021Observed: 1254.63 ft at 10:00PM Jan 16, 2021Observed: 1254.7 ft at 11:00PM Jan 16, 2021Observed: 1254.71 ft at 12:00AM Jan 17, 2021Observed: 1254.67 ft at 1:00AM Jan 17, 2021Observed: 1254.61 ft at 2:00AM Jan 17, 2021Observed: 1254.72 ft at 3:00AM Jan 17, 2021Observed: 1254.75 ft at 4:00AM Jan 17, 2021Observed: 1254.66 ft at 5:00AM Jan 17, 2021Observed: 1254.71 ft at 6:00AM Jan 17, 2021Observed: 1254.68 ft at 7:00AM Jan 17, 2021Observed: 1254.69 ft at 8:00AM Jan 17, 2021Observed: 1254.74 ft at 9:00AM Jan 17, 2021Observed: 1254.7 ft at 10:00AM Jan 17, 2021Observed: 1254.69 ft at 11:00AM Jan 17, 2021Observed: 1254.69 ft at 12:00PM Jan 17, 2021Observed: 1254.68 ft at 1:00PM Jan 17, 2021Observed: 1254.69 ft at 2:00PM Jan 17, 2021Observed: 1254.67 ft at 3:00PM Jan 17, 2021Observed: 1254.63 ft at 4:00PM Jan 17, 2021Observed: 1254.67 ft at 5:00PM Jan 17, 2021Observed: 1254.7 ft at 6:00PM Jan 17, 2021Observed: 1254.67 ft at 7:00PM Jan 17, 2021Observed: 1254.65 ft at 8:00PM Jan 17, 2021Observed: 1254.67 ft at 9:00PM Jan 17, 2021Observed: 1254.62 ft at 10:00PM Jan 17, 2021Observed: 1254.56 ft at 11:00PM Jan 17, 2021Observed: 1254.64 ft at 12:00AM Jan 18, 2021Observed: 1254.63 ft at 1:00AM Jan 18, 2021Observed: 1254.57 ft at 2:00AM Jan 18, 2021Observed: 1254.61 ft at 3:00AM Jan 18, 2021Observed: 1254.68 ft at 4:00AM Jan 18, 2021Observed: 1254.66 ft at 5:00AM Jan 18, 2021Observed: 1254.68 ft at 6:00AM Jan 18, 2021Observed: 1254.68 ft at 7:00AM Jan 18, 2021Observed: 1254.65 ft at 8:00AM Jan 18, 2021Observed: 1254.64 ft at 9:00AM Jan 18, 2021Observed: 1254.65 ft at 10:00AM Jan 18, 2021Observed: 1254.64 ft at 11:00AM Jan 18, 2021Observed: 1254.56 ft at 12:00PM Jan 18, 2021Observed: 1254.45 ft at 1:00PM Jan 18, 2021Observed: 1254.27 ft at 2:00PM Jan 18, 2021Observed: 1254.17 ft at 3:00PM Jan 18, 2021Observed: 1254.16 ft at 4:00PM Jan 18, 2021Observed: 1254.4 ft at 5:00PM Jan 18, 2021Observed: 1254.46 ft at 6:00PM Jan 18, 2021Observed: 1254.52 ft at 7:00PM Jan 18, 2021Observed: 1254.56 ft at 8:00PM Jan 18, 2021Observed: 1254.52 ft at 9:00PM Jan 18, 2021Observed: 1254.46 ft at 10:00PM Jan 18, 2021Observed: 1254.45 ft at 11:00PM Jan 18, 2021Observed: 1254.52 ft at 12:00AM Jan 19, 2021Observed: 1254.5 ft at 1:00AM Jan 19, 2021Observed: 1254.51 ft at 2:00AM Jan 19, 2021Observed: 1254.5 ft at 3:00AM Jan 19, 2021Observed: 1254.52 ft at 4:00AM Jan 19, 2021Observed: 1254.53 ft at 5:00AM Jan 19, 2021Observed: 1254.55 ft at 6:00AM Jan 19, 2021Observed: 1254.55 ft at 7:00AM Jan 19, 2021Observed: 1254.53 ft at 8:00AM Jan 19, 2021Observed: 1254.53 ft at 9:00AM Jan 19, 2021Observed: 1254.52 ft at 10:00AM Jan 19, 2021Observed: 1254.51 ft at 11:00AM Jan 19, 2021Observed: 1254.47 ft at 12:00PM Jan 19, 2021Observed: 1254.48 ft at 1:00PM Jan 19, 2021Observed: 1254.47 ft at 2:00PM Jan 19, 2021Observed: 1254.42 ft at 3:00PM Jan 19, 2021Observed: 1254.44 ft at 4:00PM Jan 19, 2021Observed: 1254.46 ft at 5:00PM Jan 19, 2021Observed: 1254.5 ft at 6:00PM Jan 19, 2021Observed: 1254.47 ft at 7:00PM Jan 19, 2021Observed: 1254.39 ft at 8:00PM Jan 19, 2021Observed: 1254.36 ft at 9:00PM Jan 19, 2021Observed: 1254.35 ft at 10:00PM Jan 19, 2021Observed: 1254.42 ft at 11:00PM Jan 19, 2021Observed: 1254.44 ft at 12:00AM Jan 20, 2021Observed: 1254.49 ft at 1:00AM Jan 20, 2021Observed: 1254.57 ft at 2:00AM Jan 20, 2021Observed: 1254.52 ft at 3:00AM Jan 20, 2021Observed: 1254.56 ft at 4:00AM Jan 20, 2021Observed: 1254.53 ft at 5:00AM Jan 20, 2021Observed: 1254.55 ft at 6:00AM Jan 20, 2021Observed: 1254.53 ft at 7:00AM Jan 20, 2021Observed: 1254.55 ft at 8:00AM Jan 20, 2021Observed: 1254.55 ft at 9:00AM Jan 20, 2021Iowa Flood CenterOYEI4(plotting HGIRP) Graph Created (10:09AM Jan 20, 2021)ObservedLatest observed value: 1254.55 ft at 9:00 AM CST 20-Jan-2021. Flood Stage is 1266 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: No forecasts are available for this location

NOTE: Gauge reading may be affected by ice.

NOTE: Graphical forecasts are not available for the Willow Creek (NW IA) near Oyens. During times of high water, forecast crest information can be found in the text products.

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 1271
Moderate Flood Stage: 1269
Flood Stage: 1266
Action Stage: 1264
Low Stage (in feet): -9999

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
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
1276 K64 begins to flood.
1274 C16 begins to flood, and water reaches the bottom of the bridge on K64.
1272 150th Street begins to flood.
1271 Pioneer Avenue floods, the levees near 150th Street and Marble Avenue are overtopped, and water reaches the bottom of the bridge on C16.
1269 major agricultural flooding begins, the Willow Creek campground begins to flood, and water reaches the bottom of the bridge on Pioneer Avenue.
1267 water reaches the bottom of the bridge on 140th Street.
1266 significant agricultural flooding begins, and the park and golf course on the northeast edge of Le Mars begin to flood.
1264 minor lowland flooding begins.
About This Location Collapse

Latitude: 42.862300° N, Longitude: 96.056000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 1266 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 0.00 1266.00 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  
Resources Collapse
Hydrologic Resources Additional Resources
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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