Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
     Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 

Web Portal Changes:

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Little Wolf River at Royalton Stage (ft)Observed: 1.59 ft at 10:15AM Apr 16, 2024Observed: 1.58 ft at 11:30AM Apr 16, 2024Observed: 1.59 ft at 11:45AM Apr 16, 2024Observed: 1.59 ft at 12:00PM Apr 16, 2024Observed: 1.58 ft at 12:15PM Apr 16, 2024Observed: 1.58 ft at 12:30PM Apr 16, 2024Observed: 1.58 ft at 12:45PM Apr 16, 2024Observed: 1.58 ft at 1:00PM Apr 16, 2024Observed: 1.59 ft at 1:15PM Apr 16, 2024Observed: 1.58 ft at 1:30PM Apr 16, 2024Observed: 1.58 ft at 1:45PM Apr 16, 2024Observed: 1.59 ft at 2:00PM Apr 16, 2024Observed: 1.58 ft at 2:15PM Apr 16, 2024Observed: 1.58 ft at 2:30PM Apr 16, 2024Observed: 1.59 ft at 2:45PM Apr 16, 2024Observed: 1.58 ft at 3:00PM Apr 16, 2024Observed: 1.58 ft at 3:15PM Apr 16, 2024Observed: 1.59 ft at 3:30PM Apr 16, 2024Observed: 1.58 ft at 3:45PM Apr 16, 2024Observed: 1.59 ft at 4:00PM Apr 16, 2024Observed: 1.58 ft at 4:15PM Apr 16, 2024Observed: 1.58 ft at 4:30PM Apr 16, 2024Observed: 1.59 ft at 4:45PM Apr 16, 2024Observed: 1.59 ft at 5:00PM Apr 16, 2024Observed: 1.58 ft at 5:15PM Apr 16, 2024Observed: 1.58 ft at 5:30PM Apr 16, 2024Observed: 1.59 ft at 5:45PM Apr 16, 2024Observed: 1.59 ft at 6:00PM Apr 16, 2024Observed: 1.59 ft at 6:15PM Apr 16, 2024Observed: 1.59 ft at 6:30PM Apr 16, 2024Observed: 1.59 ft at 6:45PM Apr 16, 2024Observed: 1.59 ft at 7:00PM Apr 16, 2024Observed: 1.59 ft at 7:15PM Apr 16, 2024Observed: 1.59 ft at 7:30PM Apr 16, 2024Observed: 1.59 ft at 7:45PM Apr 16, 2024Observed: 1.59 ft at 8:00PM Apr 16, 2024Observed: 1.59 ft at 8:15PM Apr 16, 2024Observed: 1.6 ft at 8:30PM Apr 16, 2024Observed: 1.6 ft at 8:45PM Apr 16, 2024Observed: 1.6 ft at 9:00PM Apr 16, 2024Observed: 1.6 ft at 9:15PM Apr 16, 2024Observed: 1.61 ft at 11:30PM Apr 16, 2024Observed: 1.61 ft at 11:45PM Apr 16, 2024Observed: 1.61 ft at 12:00AM Apr 17, 2024Observed: 1.62 ft at 12:15AM Apr 17, 2024Observed: 1.62 ft at 12:30AM Apr 17, 2024Observed: 1.62 ft at 12:45AM Apr 17, 2024Observed: 1.62 ft at 1:00AM Apr 17, 2024Observed: 1.62 ft at 1:15AM Apr 17, 2024Observed: 1.63 ft at 1:30AM Apr 17, 2024Observed: 1.63 ft at 1:45AM Apr 17, 2024Observed: 1.64 ft at 2:00AM Apr 17, 2024Observed: 1.64 ft at 2:15AM Apr 17, 2024Observed: 1.65 ft at 2:30AM Apr 17, 2024Observed: 1.65 ft at 2:45AM Apr 17, 2024Observed: 1.66 ft at 3:00AM Apr 17, 2024Observed: 1.67 ft at 3:15AM Apr 17, 2024Observed: 1.67 ft at 3:30AM Apr 17, 2024Observed: 1.68 ft at 3:45AM Apr 17, 2024Observed: 1.68 ft at 4:00AM Apr 17, 2024Observed: 1.69 ft at 4:15AM Apr 17, 2024Observed: 1.69 ft at 4:30AM Apr 17, 2024Observed: 1.69 ft at 4:45AM Apr 17, 2024Observed: 1.7 ft at 5:00AM Apr 17, 2024Observed: 1.7 ft at 5:15AM Apr 17, 2024Observed: 1.7 ft at 5:30AM Apr 17, 2024Observed: 1.7 ft at 5:45AM Apr 17, 2024Observed: 1.69 ft at 6:00AM Apr 17, 2024Observed: 1.7 ft at 6:15AM Apr 17, 2024Observed: 1.7 ft at 6:30AM Apr 17, 2024Observed: 1.71 ft at 6:45AM Apr 17, 2024Observed: 1.71 ft at 7:00AM Apr 17, 2024Observed: 1.71 ft at 7:15AM Apr 17, 2024Observed: 1.72 ft at 7:30AM Apr 17, 2024Observed: 1.72 ft at 7:45AM Apr 17, 2024Observed: 1.72 ft at 8:00AM Apr 17, 2024Observed: 1.72 ft at 8:15AM Apr 17, 2024Observed: 1.72 ft at 8:30AM Apr 17, 2024Observed: 1.73 ft at 8:45AM Apr 17, 2024Observed: 1.73 ft at 9:00AM Apr 17, 2024Observed: 1.73 ft at 9:15AM Apr 17, 2024Observed: 1.73 ft at 9:30AM Apr 17, 2024Observed: 1.74 ft at 9:45AM Apr 17, 2024Observed: 1.74 ft at 10:00AM Apr 17, 2024Observed: 1.75 ft at 10:15AM Apr 17, 2024Observed: 1.75 ft at 10:30AM Apr 17, 2024Observed: 1.76 ft at 10:45AM Apr 17, 2024Observed: 1.76 ft at 11:00AM Apr 17, 2024Observed: 1.77 ft at 11:15AM Apr 17, 2024Observed: 1.77 ft at 11:30AM Apr 17, 2024Observed: 1.78 ft at 11:45AM Apr 17, 2024Observed: 1.78 ft at 12:00PM Apr 17, 2024Observed: 1.78 ft at 12:15PM Apr 17, 2024Observed: 1.79 ft at 12:30PM Apr 17, 2024Observed: 1.79 ft at 12:45PM Apr 17, 2024Observed: 1.8 ft at 1:00PM Apr 17, 2024Observed: 1.8 ft at 1:15PM Apr 17, 2024Observed: 1.81 ft at 1:30PM Apr 17, 2024Observed: 1.81 ft at 1:45PM Apr 17, 2024Observed: 1.82 ft at 2:00PM Apr 17, 2024Observed: 1.82 ft at 2:15PM Apr 17, 2024Observed: 1.83 ft at 2:30PM Apr 17, 2024Observed: 1.83 ft at 2:45PM Apr 17, 2024Observed: 1.84 ft at 3:00PM Apr 17, 2024Observed: 1.84 ft at 3:15PM Apr 17, 2024Observed: 1.86 ft at 4:30PM Apr 17, 2024Observed: 1.86 ft at 4:45PM Apr 17, 2024Observed: 1.86 ft at 5:00PM Apr 17, 2024Observed: 1.86 ft at 5:15PM Apr 17, 2024Observed: 1.86 ft at 5:30PM Apr 17, 2024Observed: 1.87 ft at 5:45PM Apr 17, 2024Observed: 1.87 ft at 6:00PM Apr 17, 2024Observed: 1.87 ft at 6:15PM Apr 17, 2024Observed: 1.87 ft at 6:30PM Apr 17, 2024Observed: 1.87 ft at 6:45PM Apr 17, 2024Observed: 1.87 ft at 7:00PM Apr 17, 2024Observed: 1.87 ft at 7:15PM Apr 17, 2024Observed: 1.87 ft at 7:30PM Apr 17, 2024Observed: 1.87 ft at 7:45PM Apr 17, 2024Observed: 1.88 ft at 8:00PM Apr 17, 2024Observed: 1.88 ft at 8:15PM Apr 17, 2024Observed: 1.88 ft at 8:30PM Apr 17, 2024Observed: 1.88 ft at 8:45PM Apr 17, 2024Observed: 1.88 ft at 9:00PM Apr 17, 2024Observed: 1.88 ft at 9:15PM Apr 17, 2024Observed: 1.88 ft at 9:30PM Apr 17, 2024Observed: 1.89 ft at 9:45PM Apr 17, 2024Observed: 1.89 ft at 10:00PM Apr 17, 2024Observed: 1.89 ft at 10:15PM Apr 17, 2024Observed: 1.89 ft at 10:30PM Apr 17, 2024Observed: 1.9 ft at 10:45PM Apr 17, 2024Observed: 1.9 ft at 11:00PM Apr 17, 2024Observed: 1.9 ft at 11:15PM Apr 17, 2024Observed: 1.91 ft at 11:30PM Apr 17, 2024Observed: 1.92 ft at 11:45PM Apr 17, 2024Observed: 1.92 ft at 12:00AM Apr 18, 2024Observed: 1.94 ft at 12:15AM Apr 18, 2024Observed: 1.95 ft at 12:30AM Apr 18, 2024Observed: 1.96 ft at 12:45AM Apr 18, 2024Observed: 1.97 ft at 1:00AM Apr 18, 2024Observed: 1.98 ft at 1:15AM Apr 18, 2024Observed: 1.99 ft at 1:30AM Apr 18, 2024Observed: 1.99 ft at 1:45AM Apr 18, 2024Observed: 2.01 ft at 2:00AM Apr 18, 2024Observed: 2.01 ft at 2:15AM Apr 18, 2024Observed: 2.02 ft at 2:30AM Apr 18, 2024Observed: 2.02 ft at 2:45AM Apr 18, 2024Observed: 2.03 ft at 3:00AM Apr 18, 2024Observed: 2.03 ft at 3:15AM Apr 18, 2024Observed: 2.05 ft at 4:30AM Apr 18, 2024Observed: 2.05 ft at 4:45AM Apr 18, 2024Observed: 2.06 ft at 5:00AM Apr 18, 2024Observed: 2.06 ft at 5:15AM Apr 18, 2024Observed: 2.06 ft at 5:30AM Apr 18, 2024Observed: 2.07 ft at 5:45AM Apr 18, 2024Observed: 2.07 ft at 6:00AM Apr 18, 2024Observed: 2.07 ft at 6:15AM Apr 18, 2024Observed: 2.07 ft at 6:30AM Apr 18, 2024Observed: 2.07 ft at 6:45AM Apr 18, 2024Observed: 2.08 ft at 7:00AM Apr 18, 2024Observed: 2.08 ft at 7:15AM Apr 18, 2024Observed: 2.1 ft at 8:30AM Apr 18, 2024Observed: 2.12 ft at 8:45AM Apr 18, 2024Observed: 2.14 ft at 9:00AM Apr 18, 2024Observed: 2.16 ft at 9:15AM Apr 18, 2024Observed: 2.19 ft at 9:30AM Apr 18, 2024Observed: 2.21 ft at 9:45AM Apr 18, 2024Observed: 2.24 ft at 10:00AM Apr 18, 2024Observed: 2.26 ft at 10:15AM Apr 18, 2024Observed: 2.28 ft at 10:30AM Apr 18, 2024Observed: 2.3 ft at 10:45AM Apr 18, 2024Observed: 2.31 ft at 11:00AM Apr 18, 2024Observed: 2.33 ft at 11:15AM Apr 18, 2024Observed: 2.34 ft at 11:30AM Apr 18, 2024Observed: 2.34 ft at 11:45AM Apr 18, 2024Observed: 2.35 ft at 12:00PM Apr 18, 2024Observed: 2.35 ft at 12:15PM Apr 18, 2024Observed: 2.35 ft at 12:30PM Apr 18, 2024Observed: 2.36 ft at 12:45PM Apr 18, 2024Observed: 2.36 ft at 1:00PM Apr 18, 2024Observed: 2.36 ft at 1:15PM Apr 18, 2024Observed: 2.36 ft at 1:30PM Apr 18, 2024Observed: 2.36 ft at 1:45PM Apr 18, 2024Observed: 2.36 ft at 2:00PM Apr 18, 2024Observed: 2.36 ft at 2:15PM Apr 18, 2024Observed: 2.36 ft at 2:30PM Apr 18, 2024Observed: 2.36 ft at 2:45PM Apr 18, 2024Observed: 2.36 ft at 3:00PM Apr 18, 2024Observed: 2.35 ft at 3:15PM Apr 18, 2024Observed: 2.35 ft at 3:30PM Apr 18, 2024Observed: 2.35 ft at 3:45PM Apr 18, 2024Observed: 2.35 ft at 4:00PM Apr 18, 2024Observed: 2.35 ft at 4:15PM Apr 18, 2024Observed: 2.35 ft at 4:30PM Apr 18, 2024Observed: 2.35 ft at 4:45PM Apr 18, 2024Observed: 2.35 ft at 5:00PM Apr 18, 2024Observed: 2.35 ft at 5:15PM Apr 18, 2024Observed: 2.35 ft at 5:30PM Apr 18, 2024Observed: 2.35 ft at 5:45PM Apr 18, 2024Observed: 2.35 ft at 6:00PM Apr 18, 2024Observed: 2.36 ft at 6:15PM Apr 18, 2024Observed: 2.35 ft at 6:30PM Apr 18, 2024Observed: 2.35 ft at 6:45PM Apr 18, 2024Observed: 2.35 ft at 7:00PM Apr 18, 2024Observed: 2.36 ft at 7:15PM Apr 18, 2024Observed: 2.36 ft at 7:30PM Apr 18, 2024Observed: 2.36 ft at 7:45PM Apr 18, 2024Observed: 2.35 ft at 8:00PM Apr 18, 2024Observed: 2.36 ft at 8:15PM Apr 18, 2024Observed: 2.36 ft at 8:30PM Apr 18, 2024Observed: 2.36 ft at 8:45PM Apr 18, 2024Observed: 2.36 ft at 9:00PM Apr 18, 2024Observed: 2.36 ft at 9:15PM Apr 18, 2024Observed: 2.36 ft at 9:30PM Apr 18, 2024Observed: 2.36 ft at 9:45PM Apr 18, 2024Observed: 2.36 ft at 10:00PM Apr 18, 2024Observed: 2.36 ft at 10:15PM Apr 18, 2024Observed: 2.37 ft at 10:30PM Apr 18, 2024Observed: 2.36 ft at 10:45PM Apr 18, 2024Observed: 2.37 ft at 11:00PM Apr 18, 2024Observed: 2.37 ft at 11:15PM Apr 18, 2024Observed: 2.37 ft at 11:30PM Apr 18, 2024Observed: 2.38 ft at 11:45PM Apr 18, 2024Observed: 2.38 ft at 12:00AM Apr 19, 2024Observed: 2.38 ft at 12:15AM Apr 19, 2024Observed: 2.39 ft at 12:30AM Apr 19, 2024Observed: 2.4 ft at 12:45AM Apr 19, 2024Observed: 2.4 ft at 1:00AM Apr 19, 2024Observed: 2.4 ft at 1:15AM Apr 19, 2024Observed: 2.41 ft at 1:30AM Apr 19, 2024Observed: 2.41 ft at 1:45AM Apr 19, 2024Observed: 2.41 ft at 2:00AM Apr 19, 2024Observed: 2.42 ft at 2:15AM Apr 19, 2024Observed: 2.42 ft at 2:30AM Apr 19, 2024Observed: 2.42 ft at 2:45AM Apr 19, 2024Observed: 2.42 ft at 3:00AM Apr 19, 2024Observed: 2.42 ft at 3:15AM Apr 19, 2024Observed: 2.42 ft at 4:30AM Apr 19, 2024Highest Observation: 2.43 ft at 4:45AM Apr 19, 2024Highest Observation: 2.43 ft at 5:00AM Apr 19, 2024Highest Observation: 2.43 ft at 5:15AM Apr 19, 2024Highest Observation: 2.43 ft at 5:30AM Apr 19, 2024Highest Observation: 2.43 ft at 5:45AM Apr 19, 2024Highest Observation: 2.43 ft at 6:00AM Apr 19, 2024Highest Observation: 2.43 ft at 6:15AM Apr 19, 2024Highest Observation: 2.43 ft at 6:30AM Apr 19, 2024Highest Observation: 2.43 ft at 6:45AM Apr 19, 2024Highest Observation: 2.43 ft at 7:00AM Apr 19, 2024Highest Observation: 2.43 ft at 7:15AM Apr 19, 2024Highest Observation: 2.43 ft at 7:30AM Apr 19, 2024Highest Observation: 2.43 ft at 7:45AM Apr 19, 2024Highest Observation: 2.43 ft at 8:00AM Apr 19, 2024Highest Observation: 2.43 ft at 8:15AM Apr 19, 2024Highest Observation: 2.43 ft at 8:30AM Apr 19, 2024Highest Observation: 2.43 ft at 8:45AM Apr 19, 2024Highest Observation: 2.43 ft at 9:00AM Apr 19, 2024Highest Observation: 2.43 ft at 9:15AM Apr 19, 2024USGS--Water Resources of the United StatesROYW3(plotting HGIRG) Graph Created (10:06AM Apr 19, 2024)ObservedLatest observed value: 2.43 ft at 9:15 AM CDT 19-Apr-2024. Flood Stage is 5 ft
Printable Image
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.

Return to Area Map
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
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
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:
Additional Information Collapse
Recent Camera Image from Gauge
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
Green Bay Weather Forecast Office
2485 South Point Road
Green Bay, WI 54313
(920) 494-2363
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities