Skip Navigation Link  
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
Bookmark and Share Navigation Bar End Cap


Hydrograph River at a Glance Download
Chester Creek (SEAK) above Chester Lake Dam Pool (ft)Observed: 853.09 ft at 4:00PM May 13, 2022Observed: 853.09 ft at 8:00PM May 13, 2022Observed: 853.1 ft at 12:00AM May 14, 2022Observed: 853.17 ft at 4:00AM May 14, 2022Observed: 853.23 ft at 8:00AM May 14, 2022Observed: 853.29 ft at 12:05PM May 14, 2022Observed: 853.32 ft at 4:00PM May 14, 2022Observed: 853.33 ft at 8:00PM May 14, 2022Observed: 853.33 ft at 12:00AM May 15, 2022Observed: 853.33 ft at 4:00AM May 15, 2022Observed: 853.39 ft at 8:00AM May 15, 2022Observed: 853.45 ft at 12:00PM May 15, 2022Observed: 853.45 ft at 4:00PM May 15, 2022Observed: 853.5 ft at 8:00PM May 15, 2022Observed: 853.55 ft at 12:00AM May 16, 2022Observed: 853.66 ft at 4:00AM May 16, 2022Observed: 853.71 ft at 8:00AM May 16, 2022Observed: 853.73 ft at 12:00PM May 16, 2022Observed: 853.84 ft at 4:00PM May 16, 2022Observed: 853.86 ft at 8:00PM May 16, 2022Observed: 853.91 ft at 12:00AM May 17, 2022Observed: 853.92 ft at 4:00AM May 17, 2022Observed: 853.96 ft at 8:00AM May 17, 2022Observed: 853.97 ft at 12:00PM May 17, 2022Observed: 854.19 ft at 4:00PM May 17, 2022Observed: 854.22 ft at 8:00PM May 17, 2022Observed: 854.37 ft at 12:00AM May 18, 2022Highest Observation: 854.49 ft at 4:00AM May 18, 2022Observed: 854.47 ft at 8:00AM May 18, 2022Observed: 854.41 ft at 12:05PM May 18, 2022Observed: 854.35 ft at 4:00PM May 18, 2022Observed: 854.31 ft at 8:00PM May 18, 2022Observed: 854.26 ft at 12:00AM May 19, 2022Observed: 854.19 ft at 4:00AM May 19, 2022Observed: 854.11 ft at 8:00AM May 19, 2022Observed: 854.03 ft at 12:00PM May 19, 2022Observed: 853.96 ft at 4:00PM May 19, 2022Observed: 853.88 ft at 8:00PM May 19, 2022Observed: 853.81 ft at 12:05AM May 20, 2022Observed: 853.74 ft at 4:00AM May 20, 2022Observed: 853.66 ft at 8:00AM May 20, 2022Observed: 853.58 ft at 12:00PM May 20, 2022Metlakatla Indian Community (MIC)CMWA2(plotting HPIRR) Graph Created (3:48PM May 20, 2022)ObservedLatest observed value: 853.58 ft at 12:00 PM AKDT 20-May-2022. Flood Stage is 857.3 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
RSS Files
Datum: Not Available
NOTE: Graphical forecasts are not available for the Chester Creek (SEAK) above Chester Lake Dam. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 858
Moderate Flood Stage: 0
Flood Stage: 857.3
Action Stage: 856
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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.
About This Location Collapse

Latitude: 55.119200° N, Longitude: 131.531500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 857.3 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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
30 Day Graph
Water Temperature Chart
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
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
Privacy Policy
About Us
Career Opportunities