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Weather Forecast Office Anchorage, AK

Alaska Pacific River Forecast Center

Hydrograph

River at a Glance

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

NOTE: Stage measured manually and reported by river observer. No automated gauge on-site. NOTE: Forecasts are not available for the Eyak River near Cordova. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Flood Categories (in feet) Major Flood Stage: 0 Moderate Flood Stage: 8 Flood Stage: 7 Action Stage: 6 Low Stage (in feet): -9999 Historic Crests (1) 9.99 ft on 10/10/2006 (2) 7.51 ft on 09/17/2012 (3) 7.30 ft on 08/16/2009 (4) 7.30 ft on 09/14/2014 (P) (5) 7.03 ft on 10/06/2012 (P) Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 6.56 ft on 08/30/2017 (P) (2) 6.01 ft on 08/08/2016 (P) (3) 5.08 ft on 09/30/2015 (P) (4) 7.30 ft on 09/14/2014 (P) (5) 7.03 ft on 10/06/2012 (P) Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 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

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Photos (1) Gage #1 (2) Gage #2

About This Location

Latitude: 60.521389° N, Longitude: 145.635278° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 7 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

Long-term Hydrograph

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

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