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Hydrograph River at a Glance Download
Little Wolf River at Royalton Stage (ft)Observed: 2.06 ft at 12:00PM May 07, 2024Observed: 2.07 ft at 12:15PM May 07, 2024Observed: 2.07 ft at 12:30PM May 07, 2024Observed: 2.07 ft at 12:45PM May 07, 2024Observed: 2.06 ft at 1:00PM May 07, 2024Observed: 2.07 ft at 1:15PM May 07, 2024Observed: 2.08 ft at 2:30PM May 07, 2024Observed: 2.08 ft at 2:45PM May 07, 2024Observed: 2.08 ft at 3:00PM May 07, 2024Observed: 2.08 ft at 3:15PM May 07, 2024Observed: 2.09 ft at 3:30PM May 07, 2024Observed: 2.09 ft at 3:45PM May 07, 2024Observed: 2.09 ft at 4:00PM May 07, 2024Observed: 2.09 ft at 4:15PM May 07, 2024Observed: 2.1 ft at 4:30PM May 07, 2024Observed: 2.1 ft at 4:45PM May 07, 2024Observed: 2.11 ft at 5:00PM May 07, 2024Observed: 2.1 ft at 5:15PM May 07, 2024Observed: 2.12 ft at 6:30PM May 07, 2024Observed: 2.12 ft at 6:45PM May 07, 2024Observed: 2.12 ft at 7:00PM May 07, 2024Observed: 2.12 ft at 7:15PM May 07, 2024Observed: 2.12 ft at 7:30PM May 07, 2024Observed: 2.13 ft at 7:45PM May 07, 2024Observed: 2.13 ft at 8:00PM May 07, 2024Observed: 2.13 ft at 8:15PM May 07, 2024Observed: 2.14 ft at 8:30PM May 07, 2024Observed: 2.13 ft at 8:45PM May 07, 2024Observed: 2.13 ft at 9:00PM May 07, 2024Observed: 2.14 ft at 9:15PM May 07, 2024Observed: 2.14 ft at 9:30PM May 07, 2024Observed: 2.15 ft at 9:45PM May 07, 2024Observed: 2.14 ft at 10:00PM May 07, 2024Observed: 2.14 ft at 10:15PM May 07, 2024Observed: 2.15 ft at 11:30PM May 07, 2024Observed: 2.15 ft at 11:45PM May 07, 2024Observed: 2.15 ft at 12:00AM May 08, 2024Observed: 2.15 ft at 12:15AM May 08, 2024Observed: 2.15 ft at 12:30AM May 08, 2024Observed: 2.15 ft at 12:45AM May 08, 2024Observed: 2.15 ft at 1:00AM May 08, 2024Observed: 2.16 ft at 1:15AM May 08, 2024Observed: 2.16 ft at 1:30AM May 08, 2024Observed: 2.16 ft at 1:45AM May 08, 2024Observed: 2.16 ft at 2:00AM May 08, 2024Observed: 2.16 ft at 2:15AM May 08, 2024Observed: 2.17 ft at 2:30AM May 08, 2024Observed: 2.16 ft at 2:45AM May 08, 2024Observed: 2.17 ft at 3:00AM May 08, 2024Observed: 2.17 ft at 3:15AM May 08, 2024Observed: 2.17 ft at 3:30AM May 08, 2024Observed: 2.17 ft at 3:45AM May 08, 2024Observed: 2.17 ft at 4:00AM May 08, 2024Observed: 2.17 ft at 4:15AM May 08, 2024Observed: 2.18 ft at 5:30AM May 08, 2024Observed: 2.19 ft at 5:45AM May 08, 2024Observed: 2.19 ft at 6:00AM May 08, 2024Observed: 2.19 ft at 6:15AM May 08, 2024Observed: 2.19 ft at 6:30AM May 08, 2024Observed: 2.19 ft at 6:45AM May 08, 2024Observed: 2.2 ft at 7:00AM May 08, 2024Observed: 2.2 ft at 7:15AM May 08, 2024Observed: 2.2 ft at 7:30AM May 08, 2024Observed: 2.2 ft at 7:45AM May 08, 2024Observed: 2.2 ft at 8:00AM May 08, 2024Observed: 2.2 ft at 8:15AM May 08, 2024Observed: 2.21 ft at 8:30AM May 08, 2024Observed: 2.21 ft at 8:45AM May 08, 2024Observed: 2.21 ft at 9:00AM May 08, 2024Observed: 2.21 ft at 9:15AM May 08, 2024Observed: 2.21 ft at 9:30AM May 08, 2024Observed: 2.21 ft at 9:45AM May 08, 2024Observed: 2.21 ft at 10:00AM May 08, 2024Observed: 2.21 ft at 10:15AM May 08, 2024Observed: 2.22 ft at 10:30AM May 08, 2024Observed: 2.22 ft at 10:45AM May 08, 2024Observed: 2.22 ft at 11:00AM May 08, 2024Observed: 2.22 ft at 11:15AM May 08, 2024Observed: 2.23 ft at 11:30AM May 08, 2024Observed: 2.23 ft at 11:45AM May 08, 2024Observed: 2.22 ft at 12:00PM May 08, 2024Observed: 2.23 ft at 12:15PM May 08, 2024Observed: 2.23 ft at 12:30PM May 08, 2024Observed: 2.23 ft at 12:45PM May 08, 2024Observed: 2.23 ft at 1:00PM May 08, 2024Observed: 2.24 ft at 1:15PM May 08, 2024Observed: 2.24 ft at 1:30PM May 08, 2024Observed: 2.24 ft at 1:45PM May 08, 2024Observed: 2.24 ft at 2:00PM May 08, 2024Observed: 2.24 ft at 2:15PM May 08, 2024Observed: 2.24 ft at 2:30PM May 08, 2024Observed: 2.24 ft at 2:45PM May 08, 2024Observed: 2.25 ft at 3:00PM May 08, 2024Observed: 2.25 ft at 3:15PM May 08, 2024Observed: 2.25 ft at 3:30PM May 08, 2024Observed: 2.25 ft at 3:45PM May 08, 2024Observed: 2.25 ft at 4:00PM May 08, 2024Observed: 2.25 ft at 4:15PM May 08, 2024Observed: 2.25 ft at 4:30PM May 08, 2024Observed: 2.26 ft at 4:45PM May 08, 2024Observed: 2.26 ft at 5:00PM May 08, 2024Observed: 2.26 ft at 5:15PM May 08, 2024Observed: 2.26 ft at 5:30PM May 08, 2024Observed: 2.26 ft at 5:45PM May 08, 2024Observed: 2.26 ft at 6:00PM May 08, 2024Observed: 2.26 ft at 6:15PM May 08, 2024Observed: 2.27 ft at 6:30PM May 08, 2024Observed: 2.26 ft at 6:45PM May 08, 2024Observed: 2.26 ft at 7:00PM May 08, 2024Observed: 2.27 ft at 7:15PM May 08, 2024Observed: 2.27 ft at 7:30PM May 08, 2024Observed: 2.27 ft at 7:45PM May 08, 2024Observed: 2.27 ft at 8:00PM May 08, 2024Observed: 2.27 ft at 8:15PM May 08, 2024Observed: 2.27 ft at 8:30PM May 08, 2024Observed: 2.27 ft at 8:45PM May 08, 2024Observed: 2.27 ft at 9:00PM May 08, 2024Observed: 2.27 ft at 9:15PM May 08, 2024Observed: 2.27 ft at 9:30PM May 08, 2024Observed: 2.27 ft at 9:45PM May 08, 2024Observed: 2.27 ft at 10:00PM May 08, 2024Observed: 2.27 ft at 10:15PM May 08, 2024Observed: 2.27 ft at 10:30PM May 08, 2024Observed: 2.27 ft at 10:45PM May 08, 2024Observed: 2.27 ft at 11:00PM May 08, 2024Observed: 2.27 ft at 11:15PM May 08, 2024Observed: 2.27 ft at 11:30PM May 08, 2024Observed: 2.27 ft at 11:45PM May 08, 2024Observed: 2.27 ft at 12:00AM May 09, 2024Observed: 2.27 ft at 12:15AM May 09, 2024Observed: 2.27 ft at 12:30AM May 09, 2024Observed: 2.27 ft at 12:45AM May 09, 2024Observed: 2.27 ft at 1:00AM May 09, 2024Observed: 2.27 ft at 1:15AM May 09, 2024Observed: 2.27 ft at 1:30AM May 09, 2024Observed: 2.27 ft at 1:45AM May 09, 2024Observed: 2.27 ft at 2:00AM May 09, 2024Observed: 2.27 ft at 2:15AM May 09, 2024Observed: 2.27 ft at 2:30AM May 09, 2024Observed: 2.27 ft at 2:45AM May 09, 2024Observed: 2.27 ft at 3:00AM May 09, 2024Observed: 2.26 ft at 3:15AM May 09, 2024Observed: 2.27 ft at 3:30AM May 09, 2024Observed: 2.26 ft at 3:45AM May 09, 2024Observed: 2.27 ft at 4:00AM May 09, 2024Observed: 2.26 ft at 4:15AM May 09, 2024Observed: 2.27 ft at 4:30AM May 09, 2024Observed: 2.27 ft at 4:45AM May 09, 2024Observed: 2.26 ft at 5:00AM May 09, 2024Observed: 2.26 ft at 5:15AM May 09, 2024Observed: 2.26 ft at 5:30AM May 09, 2024Observed: 2.26 ft at 5:45AM May 09, 2024Observed: 2.26 ft at 6:00AM May 09, 2024Observed: 2.26 ft at 6:15AM May 09, 2024Observed: 2.26 ft at 6:30AM May 09, 2024Observed: 2.26 ft at 6:45AM May 09, 2024Observed: 2.26 ft at 7:00AM May 09, 2024Observed: 2.26 ft at 7:15AM May 09, 2024Observed: 2.26 ft at 7:30AM May 09, 2024Observed: 2.26 ft at 7:45AM May 09, 2024Observed: 2.26 ft at 8:00AM May 09, 2024Observed: 2.26 ft at 8:15AM May 09, 2024Observed: 2.26 ft at 8:30AM May 09, 2024Observed: 2.26 ft at 8:45AM May 09, 2024Observed: 2.26 ft at 9:00AM May 09, 2024Observed: 2.25 ft at 9:15AM May 09, 2024Observed: 2.25 ft at 9:30AM May 09, 2024Observed: 2.26 ft at 9:45AM May 09, 2024Observed: 2.25 ft at 10:00AM May 09, 2024Observed: 2.25 ft at 10:15AM May 09, 2024Observed: 2.27 ft at 11:30AM May 09, 2024Observed: 2.28 ft at 11:45AM May 09, 2024Observed: 2.3 ft at 12:00PM May 09, 2024Observed: 2.31 ft at 12:15PM May 09, 2024Observed: 2.33 ft at 12:30PM May 09, 2024Observed: 2.34 ft at 12:45PM May 09, 2024Observed: 2.36 ft at 1:00PM May 09, 2024Observed: 2.38 ft at 1:15PM May 09, 2024Observed: 2.4 ft at 1:30PM May 09, 2024Observed: 2.41 ft at 1:45PM May 09, 2024Observed: 2.42 ft at 2:00PM May 09, 2024Observed: 2.43 ft at 2:15PM May 09, 2024Observed: 2.43 ft at 2:30PM May 09, 2024Observed: 2.44 ft at 2:45PM May 09, 2024Highest Observation: 2.45 ft at 3:00PM May 09, 2024Highest Observation: 2.45 ft at 3:15PM May 09, 2024Highest Observation: 2.45 ft at 3:30PM May 09, 2024Highest Observation: 2.45 ft at 3:45PM May 09, 2024Highest Observation: 2.45 ft at 4:00PM May 09, 2024Highest Observation: 2.45 ft at 4:15PM May 09, 2024Observed: 2.44 ft at 4:30PM May 09, 2024Observed: 2.43 ft at 4:45PM May 09, 2024Observed: 2.42 ft at 5:00PM May 09, 2024Observed: 2.41 ft at 5:15PM May 09, 2024Observed: 2.4 ft at 5:30PM May 09, 2024Observed: 2.38 ft at 5:45PM May 09, 2024Observed: 2.36 ft at 6:00PM May 09, 2024Observed: 2.35 ft at 6:15PM May 09, 2024Observed: 2.3 ft at 7:30PM May 09, 2024Observed: 2.29 ft at 7:45PM May 09, 2024Observed: 2.28 ft at 8:00PM May 09, 2024Observed: 2.28 ft at 8:15PM May 09, 2024Observed: 2.28 ft at 8:30PM May 09, 2024Observed: 2.27 ft at 8:45PM May 09, 2024Observed: 2.27 ft at 9:00PM May 09, 2024Observed: 2.26 ft at 9:15PM May 09, 2024Observed: 2.26 ft at 9:30PM May 09, 2024Observed: 2.26 ft at 9:45PM May 09, 2024Observed: 2.26 ft at 10:00PM May 09, 2024Observed: 2.25 ft at 10:15PM May 09, 2024Observed: 2.26 ft at 10:30PM May 09, 2024Observed: 2.26 ft at 10:45PM May 09, 2024Observed: 2.26 ft at 11:00PM May 09, 2024Observed: 2.26 ft at 11:15PM May 09, 2024Observed: 2.25 ft at 11:30PM May 09, 2024Observed: 2.25 ft at 11:45PM May 09, 2024Observed: 2.25 ft at 12:00AM May 10, 2024Observed: 2.25 ft at 12:15AM May 10, 2024Observed: 2.25 ft at 12:30AM May 10, 2024Observed: 2.25 ft at 12:45AM May 10, 2024Observed: 2.25 ft at 1:00AM May 10, 2024Observed: 2.25 ft at 1:15AM May 10, 2024Observed: 2.25 ft at 1:30AM May 10, 2024Observed: 2.24 ft at 1:45AM May 10, 2024Observed: 2.24 ft at 2:00AM May 10, 2024Observed: 2.24 ft at 2:15AM May 10, 2024Observed: 2.24 ft at 2:30AM May 10, 2024Observed: 2.24 ft at 2:45AM May 10, 2024Observed: 2.24 ft at 3:00AM May 10, 2024Observed: 2.24 ft at 3:15AM May 10, 2024Observed: 2.24 ft at 3:30AM May 10, 2024Observed: 2.24 ft at 3:45AM May 10, 2024Observed: 2.24 ft at 4:00AM May 10, 2024Observed: 2.23 ft at 4:15AM May 10, 2024Observed: 2.23 ft at 6:30AM May 10, 2024Observed: 2.23 ft at 6:45AM May 10, 2024Observed: 2.23 ft at 7:00AM May 10, 2024Observed: 2.22 ft at 7:15AM May 10, 2024Observed: 2.22 ft at 7:30AM May 10, 2024Observed: 2.22 ft at 7:45AM May 10, 2024Observed: 2.22 ft at 8:00AM May 10, 2024Observed: 2.22 ft at 8:15AM May 10, 2024Observed: 2.21 ft at 8:30AM May 10, 2024Observed: 2.22 ft at 8:45AM May 10, 2024Observed: 2.22 ft at 9:00AM May 10, 2024Observed: 2.21 ft at 9:15AM May 10, 2024Observed: 2.21 ft at 9:30AM May 10, 2024Observed: 2.21 ft at 9:45AM May 10, 2024Observed: 2.2 ft at 10:00AM May 10, 2024Observed: 2.21 ft at 10:15AM May 10, 2024Observed: 2.21 ft at 10:30AM May 10, 2024Observed: 2.2 ft at 10:45AM May 10, 2024Observed: 2.2 ft at 11:00AM May 10, 2024Observed: 2.2 ft at 11:15AM May 10, 2024USGS--Water Resources of the United StatesROYW3(plotting HGIRG) Graph Created (11:51AM May 10, 2024)ObservedLatest observed value: 2.2 ft at 11:15 AM CDT 10-May-2024. Flood Stage is 5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Little Wolf River at Royalton 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: 10
Moderate Flood Stage: 8
Flood Stage: 5
Action Stage: 4
Low Stage (in feet): -9999

Historic Crests
(1) 11.95 ft on 03/28/1950
(2) 10.50 ft on 03/25/1939
(3) 10.00 ft on 03/30/1916
(4) 9.21 ft on 03/15/1946
(5) 9.10 ft on 04/05/1959
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.10 ft on 04/02/2023
(2) 4.73 ft on 04/25/2018
(3) 5.15 ft on 03/18/2016
(4) 5.54 ft on 04/12/2011
(5) 5.09 ft on 09/26/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.74 ft on 08/11/2007
(2) 0.78 ft on 07/18/2006
(3) 0.79 ft on 08/09/2005
(4) 0.81 ft on 07/29/1936
(5) 0.82 ft on 09/24/2009
Show More Low Water Records

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
8.5 Several feet of water is surrounding buildings and structures downstream of Royalton adjacent to the river.
7 Water touches the base of the river gauge station in Royalton. The riverbanks in the area are steep-sided and most homes and roads are situated well above flood stage. Up to 2 feet of flood waters may be surrounding structures downstream between Royalton and New London.
6 Water may be surrounding some homes and structures in low-lying areas downstream between Royalton and west of New London.
5 Flooding is confined to lowland areas adjacent to the river from Royalton to west of New London.
4 There is minor lowland flooding. Flood stage is at 5 feet.
Photos
(1) View downstream on the Highway 54 bridge
(2) View at gage upstream on the Highway 54 bridge
About This Location Collapse

Latitude: 44.412600° N, Longitude: 88.865124° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 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 773.94 ft 778.94 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 774 ft 779 ft 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:
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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
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