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
    View All 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
Eyak Lake near Cordova Stage (ft)Observed: 16.73 ft at 3:43PM Apr 21, 2024Observed: 16.74 ft at 4:35PM Apr 21, 2024Observed: 16.76 ft at 5:35PM Apr 21, 2024Observed: 16.77 ft at 6:35PM Apr 21, 2024Observed: 16.77 ft at 7:35PM Apr 21, 2024Observed: 16.78 ft at 8:35PM Apr 21, 2024Observed: 16.78 ft at 9:42PM Apr 21, 2024Observed: 16.8 ft at 10:42PM Apr 21, 2024Observed: 16.8 ft at 12:08AM Apr 22, 2024Observed: 16.83 ft at 12:35AM Apr 22, 2024Observed: 16.83 ft at 1:49AM Apr 22, 2024Observed: 16.84 ft at 2:41AM Apr 22, 2024Observed: 16.84 ft at 3:40AM Apr 22, 2024Observed: 16.86 ft at 4:41AM Apr 22, 2024Observed: 16.85 ft at 5:41AM Apr 22, 2024Observed: 16.87 ft at 6:41AM Apr 22, 2024Observed: 16.86 ft at 7:41AM Apr 22, 2024Observed: 16.87 ft at 2:58AM Apr 25, 2024Observed: 16.89 ft at 4:03AM Apr 25, 2024Observed: 16.87 ft at 5:11AM Apr 25, 2024Observed: 16.89 ft at 5:56AM Apr 25, 2024Observed: 16.89 ft at 6:56AM Apr 25, 2024Observed: 16.88 ft at 7:57AM Apr 25, 2024Observed: 16.9 ft at 8:57AM Apr 25, 2024Observed: 16.87 ft at 10:03PM Apr 25, 2024Observed: 16.87 ft at 11:02PM Apr 25, 2024Observed: 16.88 ft at 1:03AM Apr 26, 2024Observed: 16.9 ft at 2:02AM Apr 26, 2024Observed: 16.89 ft at 3:10AM Apr 26, 2024Observed: 16.89 ft at 4:17AM Apr 26, 2024Observed: 16.91 ft at 5:09AM Apr 26, 2024Observed: 16.91 ft at 6:03AM Apr 26, 2024Highest Observation: 16.92 ft at 7:02AM Apr 26, 2024Observed: 16.91 ft at 8:09AM Apr 26, 2024Observed: 16.9 ft at 9:09AM Apr 26, 2024Observed: 16.85 ft at 6:04PM Apr 26, 2024Observed: 16.85 ft at 6:55PM Apr 26, 2024Observed: 16.86 ft at 7:55PM Apr 26, 2024Observed: 16.87 ft at 9:02PM Apr 26, 2024Observed: 16.87 ft at 9:56PM Apr 26, 2024Observed: 16.87 ft at 10:55PM Apr 26, 2024Observed: 16.87 ft at 11:55PM Apr 26, 2024Observed: 16.89 ft at 1:02AM Apr 27, 2024Observed: 16.89 ft at 1:56AM Apr 27, 2024Observed: 16.88 ft at 2:55AM Apr 27, 2024Observed: 16.91 ft at 3:56AM Apr 27, 2024Observed: 16.91 ft at 4:55AM Apr 27, 2024Observed: 16.91 ft at 5:55AM Apr 27, 2024Observed: 16.91 ft at 6:56AM Apr 27, 2024EYAA2(plotting HGIRZ) Graph Created (12:47PM Apr 28, 2024)ObservedLatest observed value: 16.91 ft at 6:56 AM AKDT 27-Apr-2024. Flood Stage is 24.5 ft
About this graph
Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Stage data may not be available during winter months.

NOTE: Forecasts are not available for the Eyak Lake near Cordova. Only observed stages are available for this point.

Return to Area Map
Downstream Gauge Downstream Gauge - at Copper River Highway
Flood Categories (in feet)
Major Flood Stage: 7
Moderate Flood Stage: 5
Flood Stage: 4
Action Stage: 3.5
Low Stage (in feet): -9999

Historic Crests
(1) 8.62 ft on 10/10/2006
(2) 7.64 ft on 08/07/1981
(3) 7.22 ft on 08/21/2006
(4) 5.44 ft on 09/14/2014 (P)
(5) 5.22 ft on 09/17/2012
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.55 ft on 08/28/2021 (P)
(2) 4.60 ft on 08/30/2017 (P)
(3) 3.97 ft on 08/08/2016 (P)
(4) 3.72 ft on 09/30/2015 (P)
(5) 5.44 ft on 09/14/2014 (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.
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
5 Observations made on September 14, 2014 suggest that Lake Stage at this level and above will result in water overflowing Power Creek Road. Rainfall events that cause rises of Eyak Lake to this level and above can likely occur in the Sheridan River and Salmon Creek basins located at miles 14 and 23, respectively, on the Copper River Highway with water overflowing these sections of the highway.
Photos
(1) Staff gage #1
(2) Staff gage #2
About This Location Collapse

Latitude: 60.551389° N, Longitude: 145.691389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 4 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 Collapse
Long-term Hydrograph
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
Anchorage Weather Forecast Office
6930 Sand Lake Road
Anchorage, AK 99502
(907) 266-5105
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:26 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities