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Weather Forecast Office Juneau, AK
Alaska Pacific River Forecast Center
Hydrograph
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About this graph
Tabular Data (UTC)
Tabular Data (AKST)
Datum: Not Available
Metadata
NOTE: Gage data do not meet the quality standards of USGS gages.
NOTE: Stage may be affected by ice during winter months.
NOTE:
Forecasts are not available for the Thorne River near Thorne Bay. Only observed stages are available for this point.
Default Hydrograph
Scale to Flood Categories
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:
0
Moderate Flood Stage:
14.5
Flood Stage:
12.5
Action Stage:
11
Low Stage (in feet):
-9999
Historic Crests
(1) 14.98 ft on 01/14/2014
(2) 14.82 ft on 03/12/2014
(3) 12.81 ft on 01/21/2015
(4) 12.04 ft on 10/21/2015
(5) 11.52 ft on 11/22/2019
(6) 11.51 ft on 09/12/2012
(7) 11.31 ft on 12/11/2013
(8) 10.81 ft on 11/30/2016
(9) 10.37 ft on 09/26/2016
(P)
: Preliminary values subject to further review.
Recent Crests
(1) 11.52 ft on 11/22/2019
(2) 10.81 ft on 11/30/2016
(3) 10.37 ft on 09/26/2016
(4) 12.04 ft on 10/21/2015
(5) 12.81 ft on 01/21/2015
(6) 14.82 ft on 03/12/2014
(7) 14.98 ft on 01/14/2014
(8) 11.31 ft on 12/11/2013
(9) 11.51 ft on 09/12/2012
(P)
: Preliminary values subject to further review.
Low Water Records
Currently none available.
Zoom Level:13
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
14.5
3 to 4 ft of water will be over the road upstream from the Thorne River bridge.
12.5
Water will begin to flow over the road upstream from the Thorne River bridge.
Photos
(1)
Thorne River overview
(2)
Downstream view during high water.
(3)
Upstream view during high water.
(4)
Flooded roadway near gage. Stage 14.5ft.
About This Location
Latitude: 55.705670° N, Longitude: 132.627800° W, Horizontal Datum: NAD83/WGS84
River Stage
Reference Frame
Gauge Height
Flood Stage
Uses
NWS stage
0 ft
12.5 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
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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
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NWS Information
National Weather Service
Juneau Weather Forecast Office
8500 Mendenhall Loop Road
Juneau, AK 99801
(907) 790-6802
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Page last modified: 30-Oct-2020 4:06 PM
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