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Hydrograph River at a Glance Download
Falls Creek (AK) near Petersburg Stage (ft)Observed: 18.15 ft at 8:01PM Apr 18, 2017Observed: 18.15 ft at 10:09PM Apr 18, 2017Observed: 18.17 ft at 12:18AM Apr 19, 2017Observed: 18.24 ft at 2:27AM Apr 19, 2017Observed: 18.5 ft at 6:46AM Apr 19, 2017Observed: 18.53 ft at 1:17PM Apr 19, 2017Observed: 18.51 ft at 3:27PM Apr 19, 2017Observed: 18.49 ft at 5:35PM Apr 19, 2017Observed: 18.52 ft at 9:55PM Apr 19, 2017Observed: 18.53 ft at 12:04AM Apr 20, 2017Observed: 18.53 ft at 2:13AM Apr 20, 2017Observed: 18.45 ft at 8:44AM Apr 20, 2017Observed: 18.37 ft at 1:04PM Apr 20, 2017Observed: 18.34 ft at 3:15PM Apr 20, 2017Observed: 18.36 ft at 7:35PM Apr 20, 2017Observed: 18.42 ft at 9:44PM Apr 20, 2017Observed: 18.56 ft at 11:53PM Apr 20, 2017Highest Observation: 18.71 ft at 2:01AM Apr 21, 2017Observed: 18.53 ft at 10:43AM Apr 21, 2017Observed: 18.43 ft at 3:05PM Apr 21, 2017Observed: 18.41 ft at 5:14PM Apr 21, 2017Observed: 18.4 ft at 7:24PM Apr 21, 2017Observed: 18.44 ft at 9:33PM Apr 21, 2017Observed: 18.52 ft at 11:42PM Apr 21, 2017Observed: 18.53 ft at 1:50AM Apr 22, 2017Observed: 18.5 ft at 3:58AM Apr 22, 2017Observed: 18.46 ft at 6:06AM Apr 22, 2017Observed: 18.43 ft at 8:14AM Apr 22, 2017Observed: 18.3 ft at 2:48PM Apr 22, 2017Observed: 18.27 ft at 4:58PM Apr 22, 2017Observed: 18.27 ft at 7:08PM Apr 22, 2017Observed: 18.24 ft at 9:17PM Apr 22, 2017Observed: 18.3 ft at 11:26PM Apr 22, 2017Observed: 18.38 ft at 1:34AM Apr 23, 2017Observed: 18.4 ft at 3:42AM Apr 23, 2017Observed: 18.36 ft at 10:13AM Apr 23, 2017Observed: 18.26 ft at 12:22PM Apr 23, 2017Observed: 18.25 ft at 4:45PM Apr 23, 2017Observed: 18.26 ft at 6:55PM Apr 23, 2017Observed: 18.27 ft at 9:03PM Apr 23, 2017Observed: 18.37 ft at 11:12PM Apr 23, 2017Observed: 18.4 ft at 10:06AM Apr 24, 2017Observed: 18.35 ft at 12:15PM Apr 24, 2017Observed: 18.31 ft at 2:24PM Apr 24, 2017Observed: 18.27 ft at 6:45PM Apr 24, 2017Observed: 18.27 ft at 8:54PM Apr 24, 2017Observed: 18.4 ft at 3:25AM Apr 25, 2017Observed: 18.39 ft at 5:33AM Apr 25, 2017Observed: 18.23 ft at 4:32PM Apr 25, 2017Observed: 18.22 ft at 6:41PM Apr 25, 2017FLSA2(plotting HGIRZ) Graph Created (7:47PM Apr 25, 2017)ObservedLatest observed value: 18.22 ft at 6:41 PM AKDT 25-Apr-2017. 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: Gauge reading may be affected by ice during freezing weather from November to April.

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
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: 21-Dec-2016 10:34 PM
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