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Hydrograph River at a Glance Download
Falls Creek (AK) near Petersburg Stage (ft)Observed: 18.16 ft at 1:09PM Oct 08, 2019Observed: 18.11 ft at 3:21PM Oct 08, 2019Observed: 18.12 ft at 9:52PM Oct 08, 2019Observed: 18.06 ft at 1:07PM Oct 09, 2019Observed: 18.06 ft at 3:15PM Oct 09, 2019Observed: 18.04 ft at 5:25PM Oct 09, 2019Observed: 18.04 ft at 7:33PM Oct 09, 2019Observed: 18.03 ft at 9:42PM Oct 09, 2019Observed: 18.02 ft at 2:01AM Oct 10, 2019Observed: 18.01 ft at 6:21AM Oct 10, 2019Observed: 18 ft at 12:53PM Oct 10, 2019Observed: 17.99 ft at 5:13PM Oct 10, 2019Observed: 17.98 ft at 7:22PM Oct 10, 2019Observed: 17.99 ft at 11:42PM Oct 10, 2019Observed: 18.62 ft at 12:45PM Oct 11, 2019Highest Observation: 20.27 ft at 5:04PM Oct 11, 2019Observed: 19.51 ft at 11:35PM Oct 11, 2019Observed: 18.6 ft at 12:41PM Oct 12, 2019Observed: 18.46 ft at 7:12PM Oct 12, 2019Observed: 18.46 ft at 1:43AM Oct 13, 2019Observed: 18.29 ft at 2:49PM Oct 13, 2019Observed: 18.31 ft at 4:58PM Oct 13, 2019Observed: 18.27 ft at 7:06PM Oct 13, 2019Observed: 18.25 ft at 11:25PM Oct 13, 2019Observed: 18.23 ft at 1:34AM Oct 14, 2019Observed: 18.21 ft at 3:42AM Oct 14, 2019Observed: 18.2 ft at 5:50AM Oct 14, 2019Observed: 18.16 ft at 12:21PM Oct 14, 2019Observed: 18.15 ft at 2:30PM Oct 14, 2019Observed: 18.12 ft at 4:38PM Oct 14, 2019Observed: 18.19 ft at 8:59PM Oct 14, 2019Observed: 18.38 ft at 11:07PM Oct 14, 2019Observed: 19.63 ft at 5:33AM Oct 15, 2019Observed: 20.14 ft at 7:42AM Oct 15, 2019Observed: 19.97 ft at 9:51AM Oct 15, 2019Observed: 19.62 ft at 12:00PM Oct 15, 2019FLSA2(plotting HGIRZ) Graph Created (12:47PM Oct 15, 2019)ObservedLatest observed value: 19.62 ft at 12:00 PM AKDT 15-Oct-2019. Flood Stage is 22.5 ft
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Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
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Datum: Not Available
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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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.
(1) Looking down stream from 9mi bridge
(2) Looking upstream from 9mi bridge
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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)
(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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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: 1-Mar-2019 12:31 AM
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