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Hydrograph River at a Glance Download
Green River (WA) at Howard Hanson Reservoir Inflow Discharge (kcfs)Forecast: 0.13 kcfs 5:00AM Sep 23, 2014Forecast: 0.13 kcfs 11:00AM Sep 23, 2014Forecast: 0.13 kcfs 5:00PM Sep 23, 2014Forecast: 0.13 kcfs 11:00PM Sep 23, 2014Forecast: 0.15 kcfs 5:00AM Sep 24, 2014Highest Forecast: 0.16 kcfs 11:00AM Sep 24, 2014Forecast: 0.16 kcfs 5:00PM Sep 24, 2014Forecast: 0.15 kcfs 11:00PM Sep 24, 2014Forecast: 0.15 kcfs 5:00AM Sep 25, 2014Forecast: 0.14 kcfs 11:00AM Sep 25, 2014Forecast: 0.14 kcfs 5:00PM Sep 25, 2014Forecast: 0.14 kcfs 11:00PM Sep 25, 2014Forecast: 0.13 kcfs 5:00AM Sep 26, 2014Forecast: 0.13 kcfs 11:00AM Sep 26, 2014Forecast: 0.12 kcfs 5:00PM Sep 26, 2014Forecast: 0.12 kcfs 11:00PM Sep 26, 2014USACEHHDW1(plotting QIIRZ) Graph Created (1:17AM Sep 23, 2014)Forecast (issued 8:05AM Sep 22)
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Green River (WA) at Howard Hanson Reservoir are issued routinely year-round.

Return to Area Map
Upstream Gauge - above Twin Camp Upstream Gauge Downstream Gauge Downstream Gauge - below Howard Hanson Dam
Flood Categories (in feet)
Not Available

Historical Crests
(1) 0.00 ft on 01/31/2003
(2) 0.00 ft on 01/18/2005
(3) 0.00 ft on 01/10/2006
(4) 0.00 ft on 11/12/2008
(5) 0.00 ft on 11/06/2006
(6) 0.00 ft on 01/07/2009
(P): Preliminary values subject to further review.

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

Latitude: 47.277222° N, Longitude: 121.792222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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  

Current/Historical Observations:

Additional Information Collapse
Howard Hanson Dam Reservoir Level
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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
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Seattle, WA 98115-6349
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Page last modified: 27-Aug-2014 7:09 PM
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