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Weather Forecast Office Juneau, AK

Alaska Pacific River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (AKDT) Datum: Not Available Metadata

NOTE: Coastal flood impacts are dependent upon waves as well as tide level. High waves can result in flooding even if the tide level is below flood stage. Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office. NOTE: Forecasts for the Ketchikan at Ketchikan are issued routinely year-round.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 22.5 Moderate Flood Stage: 22 Flood Stage: 21 Action Stage: 20 Low Stage (in feet): 0 Historic Crests Currently none available. Recent Crests Currently none available. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer 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

If you notice any errors in the below information, please contact our Webmaster
22.5	Mill Street, Steadman Street and half of cruise ship berths 1 & 2 are flooded.
22	"Face" of crusie ship berths 1 & 2 floods along with a portion of Stedman Street near the Ketchikan Creek Bridge.
21	Small parking lot on Stedman Street and Salvation Army floods.

About This Location

Latitude: 55.333056° N, Longitude: 131.625000° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 21 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

Additional Information

Vertical Datum references a tidal datum (MLLW), for more information see Tides and Currents.

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Alaska-Pacific River Forecast Center Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Search River Notes Nat'l Snow Information Alaska Snow Maps Flood Stage Definitions

Collaborative Agencies 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 Juneau Weather Forecast Office 8500 Mendenhall Loop Road Juneau, AK 99801 (907) 790-6802 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:26 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities