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Weather Forecast Office Green Bay, WI North Central River Forecast Center
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Wisconsin River above Grandfather Dam Pool (ft)Observed: 1396.7 ft at 2:10PM May 20, 2013Observed: 1396.7 ft at 3:10PM May 20, 2013Observed: 1396.8 ft at 4:10PM May 20, 2013Observed: 1396.7 ft at 5:10PM May 20, 2013Observed: 1396.7 ft at 6:10PM May 20, 2013Observed: 1396.7 ft at 7:10PM May 20, 2013Observed: 1396.7 ft at 8:10PM May 20, 2013Observed: 1396.7 ft at 9:10PM May 20, 2013Observed: 1396.8 ft at 10:10PM May 20, 2013Observed: 1396.8 ft at 11:10PM May 20, 2013Observed: 1396.7 ft at 12:10AM May 21, 2013Observed: 1396.7 ft at 1:10AM May 21, 2013Observed: 1396.7 ft at 2:10AM May 21, 2013Observed: 1396.7 ft at 3:10AM May 21, 2013Observed: 1396.7 ft at 4:10AM May 21, 2013Observed: 1396.7 ft at 5:10AM May 21, 2013Observed: 1396.7 ft at 6:10AM May 21, 2013Observed: 1396.7 ft at 7:10AM May 21, 2013Observed: 1396.7 ft at 8:10AM May 21, 2013Observed: 1396.7 ft at 9:10AM May 21, 2013Observed: 1396.7 ft at 10:10AM May 21, 2013Observed: 1396.7 ft at 11:10AM May 21, 2013Observed: 1396.7 ft at 12:10PM May 21, 2013Observed: 1396.8 ft at 1:10PM May 21, 2013Observed: 1396.8 ft at 2:10PM May 21, 2013Observed: 1396.8 ft at 3:10PM May 21, 2013Observed: 1396.8 ft at 4:10PM May 21, 2013Observed: 1396.8 ft at 5:10PM May 21, 2013Observed: 1396.8 ft at 6:10PM May 21, 2013Observed: 1396.8 ft at 7:10PM May 21, 2013Observed: 1396.7 ft at 8:10PM May 21, 2013Observed: 1396.7 ft at 9:10PM May 21, 2013Observed: 1396.7 ft at 10:10PM May 21, 2013Observed: 1396.7 ft at 11:10PM May 21, 2013Observed: 1396.8 ft at 12:10AM May 22, 2013Highest Observation: 1396.9 ft at 1:10AM May 22, 2013Highest Observation: 1396.9 ft at 2:10AM May 22, 2013Highest Observation: 1396.9 ft at 3:10AM May 22, 2013Highest Observation: 1396.9 ft at 4:10AM May 22, 2013Highest Observation: 1396.9 ft at 5:10AM May 22, 2013Highest Observation: 1396.9 ft at 6:10AM May 22, 2013Observed: 1396.8 ft at 7:10AM May 22, 2013Observed: 1396.7 ft at 8:10AM May 22, 2013Observed: 1396.7 ft at 9:10AM May 22, 2013Observed: 1396.7 ft at 10:10AM May 22, 2013Observed: 1396.7 ft at 11:10AM May 22, 2013Observed: 1396.7 ft at 12:10PM May 22, 2013Observed: 1396.7 ft at 1:10PM May 22, 2013Observed: 1396.7 ft at 2:10PM May 22, 2013Observed: 1396.7 ft at 3:10PM May 22, 2013Observed: 1396.7 ft at 4:10PM May 22, 2013Observed: 1396.7 ft at 5:10PM May 22, 2013Observed: 1396.7 ft at 6:10PM May 22, 2013Observed: 1396.7 ft at 7:10PM May 22, 2013Observed: 1396.7 ft at 8:10PM May 22, 2013Observed: 1396.7 ft at 9:10PM May 22, 2013Observed: 1396.7 ft at 10:10PM May 22, 2013Observed: 1396.8 ft at 12:10AM May 23, 2013Observed: 1396.7 ft at 1:10AM May 23, 2013Observed: 1396.7 ft at 2:10AM May 23, 2013Observed: 1396.7 ft at 3:10AM May 23, 2013Observed: 1396.7 ft at 4:10AM May 23, 2013Observed: 1396.7 ft at 5:10AM May 23, 2013Observed: 1396.6 ft at 6:10AM May 23, 2013Observed: 1396.6 ft at 7:10AM May 23, 2013Observed: 1396.5 ft at 8:10AM May 23, 2013Observed: 1396.6 ft at 9:10AM May 23, 2013Observed: 1396.7 ft at 10:10AM May 23, 2013Observed: 1396.7 ft at 11:10AM May 23, 2013Observed: 1396.8 ft at 12:10PM May 23, 2013Observed: 1396.8 ft at 1:10PM May 23, 2013Observed: 1396.8 ft at 2:10PM May 23, 2013Observed: 1396.7 ft at 3:10PM May 23, 2013Observed: 1396.7 ft at 4:10PM May 23, 2013Observed: 1396.6 ft at 5:10PM May 23, 2013Observed: 1396.6 ft at 6:10PM May 23, 2013Observed: 1396.6 ft at 7:10PM May 23, 2013Observed: 1396.6 ft at 8:10PM May 23, 2013Observed: 1396.6 ft at 9:10PM May 23, 2013Observed: 1396.6 ft at 10:10PM May 23, 2013Observed: 1396.6 ft at 11:10PM May 23, 2013Observed: 1396.6 ft at 12:10AM May 24, 2013Observed: 1396.6 ft at 1:10AM May 24, 2013Observed: 1396.6 ft at 2:10AM May 24, 2013Observed: 1396.6 ft at 3:10AM May 24, 2013Observed: 1396.6 ft at 4:10AM May 24, 2013Observed: 1396.6 ft at 5:10AM May 24, 2013Observed: 1396.6 ft at 6:10AM May 24, 2013Observed: 1396.7 ft at 7:10AM May 24, 2013Observed: 1396.6 ft at 8:10AM May 24, 2013Observed: 1396.6 ft at 9:10AM May 24, 2013Observed: 1396.6 ft at 10:10AM May 24, 2013Observed: 1396.6 ft at 11:10AM May 24, 2013Observed: 1396.6 ft at 12:10PM May 24, 2013Observed: 1396.6 ft at 1:10PM May 24, 2013Observed: 1396.7 ft at 2:10PM May 24, 2013Observed: 1396.7 ft at 3:10PM May 24, 2013Observed: 1396.7 ft at 4:10PM May 24, 2013Observed: 1396.7 ft at 5:10PM May 24, 2013Observed: 1396.7 ft at 6:10PM May 24, 2013Observed: 1396.8 ft at 7:10PM May 24, 2013Observed: 1396.7 ft at 8:10PM May 24, 2013Observed: 1396.7 ft at 9:10PM May 24, 2013Observed: 1396.7 ft at 10:10PM May 24, 2013Observed: 1396.6 ft at 11:10PM May 24, 2013Observed: 1396.6 ft at 12:10AM May 25, 2013Observed: 1396.6 ft at 1:10AM May 25, 2013Observed: 1396.6 ft at 2:10AM May 25, 2013Observed: 1396.6 ft at 3:10AM May 25, 2013Observed: 1396.7 ft at 4:10AM May 25, 2013Observed: 1396.7 ft at 5:10AM May 25, 2013Observed: 1396.7 ft at 6:10AM May 25, 2013Observed: 1396.7 ft at 7:10AM May 25, 2013Observed: 1396.7 ft at 8:10AM May 25, 2013Observed: 1396.6 ft at 9:10AM May 25, 2013Observed: 1396.6 ft at 10:10AM May 25, 2013Observed: 1396.6 ft at 11:10AM May 25, 2013Observed: 1396.5 ft at 12:10PM May 25, 2013GRFW3(plotting HPIRP) Graph Created (1:13PM May 25, 2013)ObservedLatest observed value: 1396.5 ft at 12:10 PM CDT 25-May-2013. Flood Stage is 1408 ft
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Tabular Data
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Datum: Not Available
Metadata
NOTE: Gauge reading affected by reservoir operations.

NOTE: Forecasts are not available for the Wisconsin River above Grandfather Dam. Only observed stages are available for this point.

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Upstream Gauge - above Tomahawk Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Alexander Dam
Flood Categories (in feet)
Major Flood Stage:1412
Moderate Flood Stage:1410
Flood Stage:1408
Action Stage:1405

Historical Crests
Currently none available.

Low Water Records
Currently none available.
Legend
Gauge Location
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
Photos
(1) Wisconsin River upstream of Grandfather dam
About This Location Collapse

Latitude: 45.313056° N, Longitude: 89.783889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 1408 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  
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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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Green Bay Weather Forecast Office
2485 South Point Road
Green Bay, WI 54313
(920) 494-2363
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Page last modified: 13-Mar-2013 6:27 PM 		Disclaimer
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