Eyak River at Copper River Hwy near Cordova
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
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Observed (OBS) 04/13/2025 4:00 PM AKDTRecord: 28.1 ftCATEGORY STAGE 
Moderate Flooding 25.5 ft Minor Flooding 24.5 ft Action 23.5 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
Gage data do not meet the quality standards of USGS gages.
Stage may be affected by ice.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 25.7 - Approximate gage height of 2015 FEMA 1% annual exceedance probability (100 yr) flood
- 25.5 - Moderate Flood Stage. Water surrounding homes along Eyak River, necessitating taking boats to homes. Septic fields flooded. All of Cordova's Municipal Airport runway underwater. With any wind/wave action, Power Creek Road is flooded and eroded.
- 24.5 - Flood stage. Water in residences's yards, garages, crawl spaces and basements. Most of weir near the Eyak Lake outlet underwater. Standing water on parts of Cordova's Municipal Airport runway. Washouts can be a serious problem near the Sheridan River where the bridge span is to short to carry the flow on a braded system.
Gauge Info
| Coordinates | 60.5311, -145.644 |
| RFC | APRFC |
| State | AK |
| WFO | AFC |
| County | Valdez-Cordova |
| Data Provider(s) | |
| National Weather Service | Alaska-Pacific River Forecast Center |
Gauge Location
Recent Crests
| 1. | 21.90 ft | on 08-28-2021 | |
| 2. | 24.27 ft | on 08-30-2017 | (P) |
| 3. | 23.91 ft | on 08-08-2016 | (P) |
| 4. | 23.92 ft | on 09-29-2015 | (P) |
| 5. | 24.08 ft | on 09-14-2014 | (P) |
Recent Crests
| 1. | 21.90 ft | on 08-28-2021 | |
| 2. | 24.27 ft | on 08-30-2017 | (P) |
| 3. | 23.91 ft | on 08-08-2016 | (P) |
| 4. | 23.92 ft | on 09-29-2015 | (P) |
| 5. | 24.08 ft | on 09-14-2014 | (P) |
| 6. | 25.05 ft | on 09-17-2012 | |
| 7. | 22.78 ft | on 09-07-2011 | |
| 8. | 22.97 ft | on 09-15-2008 | |
| 9. | 28.07 ft | on 10-10-2006 | |
| 10. | 25.95 ft | on 08-20-2006 |
Historic Crests
| 1. | 28.07 ft | on 10-10-2006 | |
| 2. | 25.95 ft | on 08-20-2006 | |
| 3. | 25.05 ft | on 09-17-2012 | |
| 4. | 24.27 ft | on 08-30-2017 | (P) |
| 5. | 24.08 ft | on 09-14-2014 | (P) |
Historic Crests
| 1. | 28.07 ft | on 10-10-2006 | |
| 2. | 25.95 ft | on 08-20-2006 | |
| 3. | 25.05 ft | on 09-17-2012 | |
| 4. | 24.27 ft | on 08-30-2017 | (P) |
| 5. | 24.08 ft | on 09-14-2014 | (P) |
| 6. | 23.92 ft | on 09-29-2015 | (P) |
| 7. | 23.91 ft | on 08-08-2016 | (P) |
| 8. | 22.97 ft | on 09-15-2008 | |
| 9. | 22.78 ft | on 09-07-2011 | |
| 10. | 21.90 ft | on 08-28-2021 |
Vertical Datum Table
| type | STND | NGVD29 |
|---|---|---|
| major Flooding | N/A | N/A |
| moderate Flooding | 25.50 ft | 115.50 ft |
| minor Flooding | 24.50 ft | 114.50 ft |
| action | 23.50 ft | 113.50 ft |
| Latest Value | 17.09 ft | 107.09 ft |
| Gauge Zero | 0.00 ft | 90.00 ft |
Probability Information
No Images Available
Unique Local Info
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.