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Hydrograph River at a Glance Download
Falls Creek (AK) near Petersburg Stage (ft)Observed: 18.57 ft at 9:03PM May 15, 2017Observed: 18.52 ft at 11:11PM May 15, 2017Observed: 18.47 ft at 1:20AM May 16, 2017Observed: 18.4 ft at 7:50AM May 16, 2017Observed: 18.25 ft at 2:26PM May 16, 2017Observed: 18.24 ft at 6:50PM May 16, 2017Observed: 18.21 ft at 7:55AM May 17, 2017Observed: 18.2 ft at 10:05AM May 17, 2017Observed: 18.09 ft at 2:28PM May 17, 2017Observed: 18.07 ft at 4:39PM May 17, 2017Observed: 18.11 ft at 6:49PM May 17, 2017Observed: 18.07 ft at 8:59PM May 17, 2017Observed: 18.07 ft at 11:08PM May 17, 2017Observed: 18.11 ft at 3:28AM May 18, 2017Observed: 18.1 ft at 5:36AM May 18, 2017Observed: 18.09 ft at 9:57AM May 18, 2017Observed: 18.07 ft at 12:05PM May 18, 2017Observed: 18.05 ft at 2:14PM May 18, 2017Observed: 18.05 ft at 8:49PM May 18, 2017Observed: 18.06 ft at 1:09AM May 19, 2017Observed: 18.07 ft at 3:17AM May 19, 2017Observed: 18.11 ft at 5:27AM May 19, 2017Observed: 18.1 ft at 9:47AM May 19, 2017Observed: 18.07 ft at 11:56AM May 19, 2017Observed: 18.05 ft at 10:53PM May 19, 2017Observed: 18.04 ft at 5:25AM May 20, 2017Observed: 18.05 ft at 7:35AM May 20, 2017Observed: 18.04 ft at 9:44AM May 20, 2017Observed: 18.02 ft at 11:53AM May 20, 2017Observed: 18.02 ft at 2:02PM May 20, 2017Observed: 18.94 ft at 12:59AM May 21, 2017Observed: 19.64 ft at 2:00AM May 21, 2017Observed: 20.05 ft at 3:00AM May 21, 2017Observed: 20.27 ft at 4:00AM May 21, 2017Observed: 20.42 ft at 5:00AM May 21, 2017Observed: 20.62 ft at 6:00AM May 21, 2017Observed: 20.89 ft at 7:00AM May 21, 2017Observed: 21.11 ft at 8:00AM May 21, 2017Observed: 21.34 ft at 9:00AM May 21, 2017Observed: 21.56 ft at 10:00AM May 21, 2017Observed: 21.69 ft at 11:00AM May 21, 2017Observed: 21.84 ft at 12:00PM May 21, 2017Observed: 21.99 ft at 1:00PM May 21, 2017Observed: 22.01 ft at 2:00PM May 21, 2017Highest Observation: 22.13 ft at 3:00PM May 21, 2017Observed: 22.09 ft at 4:00PM May 21, 2017Observed: 22.02 ft at 5:00PM May 21, 2017Observed: 22.11 ft at 6:00PM May 21, 2017Observed: 21.92 ft at 7:00PM May 21, 2017Observed: 21.7 ft at 8:00PM May 21, 2017Observed: 21.35 ft at 9:00PM May 21, 2017Observed: 20.89 ft at 10:00PM May 21, 2017Observed: 20.5 ft at 11:00PM May 21, 2017Observed: 20.22 ft at 12:00AM May 22, 2017Observed: 19.96 ft at 1:00AM May 22, 2017Observed: 19.8 ft at 2:00AM May 22, 2017Observed: 19.63 ft at 3:00AM May 22, 2017Observed: 19.51 ft at 4:00AM May 22, 2017Observed: 19.39 ft at 5:00AM May 22, 2017Observed: 19.21 ft at 7:00AM May 22, 2017Observed: 19.15 ft at 8:00AM May 22, 2017Observed: 19.1 ft at 9:00AM May 22, 2017Observed: 19.06 ft at 10:00AM May 22, 2017Observed: 18.99 ft at 11:00AM May 22, 2017Observed: 18.98 ft at 12:00PM May 22, 2017Observed: 18.95 ft at 1:00PM May 22, 2017Observed: 18.96 ft at 2:00PM May 22, 2017Observed: 18.95 ft at 3:00PM May 22, 2017Observed: 18.96 ft at 4:00PM May 22, 2017Observed: 18.99 ft at 5:00PM May 22, 2017Observed: 19.01 ft at 6:00PM May 22, 2017Observed: 19.06 ft at 7:00PM May 22, 2017Observed: 19.12 ft at 8:00PM May 22, 2017FLSA2(plotting HGIRZ) Graph Created (9:02PM May 22, 2017)ObservedLatest observed value: 19.12 ft at 8:00 PM AKDT 22-May-2017. Flood Stage is 22.5 ft
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Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Stage and discharge data do not meet quality standards of USGS gages.

NOTE: Forecasts are not available for the Falls Creek (AK) near Petersburg. Only observed stages are available for this point.

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Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 24
Flood Stage: 22.5
Action Stage: 21.5
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:14
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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.
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27 Water levels will be at the horizontal ibeam of the 9 mile bridge along Mitkof highway, this is major flood stage.
24 Water levels will be at the bridge abutment of 9 mile bridge along Mitkof Highway, this is moderate flood stage.
Photos
(1) Looking down stream from 9mi bridge
(2) Looking upstream from 9mi bridge
About This Location Collapse

Latitude: 56.681700° N, Longitude: 132.923500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 22.5 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.
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: 21-Dec-2016 10:34 PM
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