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Hydrograph River at a Glance Download
Alsea River near Tidewater Stage (ft)Flow (cfs)Highest Observation: 3.41 ft at 5:00AM Apr 18, 2015Highest Observation: 3.41 ft at 5:30AM Apr 18, 2015Highest Observation: 3.41 ft at 6:00AM Apr 18, 2015Observed: 3.4 ft at 6:30AM Apr 18, 2015Observed: 3.4 ft at 7:00AM Apr 18, 2015Observed: 3.4 ft at 7:30AM Apr 18, 2015Observed: 3.4 ft at 8:00AM Apr 18, 2015Observed: 3.39 ft at 8:30AM Apr 18, 2015Observed: 3.39 ft at 9:00AM Apr 18, 2015Observed: 3.39 ft at 9:30AM Apr 18, 2015Observed: 3.39 ft at 10:00AM Apr 18, 2015Observed: 3.38 ft at 10:30AM Apr 18, 2015Observed: 3.38 ft at 11:00AM Apr 18, 2015Observed: 3.38 ft at 11:30AM Apr 18, 2015Observed: 3.38 ft at 12:00PM Apr 18, 2015Observed: 3.38 ft at 12:30PM Apr 18, 2015Observed: 3.38 ft at 1:00PM Apr 18, 2015Observed: 3.38 ft at 1:30PM Apr 18, 2015Observed: 3.38 ft at 2:00PM Apr 18, 2015Observed: 3.37 ft at 2:30PM Apr 18, 2015Observed: 3.37 ft at 3:00PM Apr 18, 2015Observed: 3.37 ft at 3:30PM Apr 18, 2015Observed: 3.37 ft at 4:00PM Apr 18, 2015Observed: 3.37 ft at 4:30PM Apr 18, 2015Observed: 3.37 ft at 5:00PM Apr 18, 2015Observed: 3.36 ft at 5:30PM Apr 18, 2015Observed: 3.36 ft at 6:00PM Apr 18, 2015Observed: 3.35 ft at 6:30PM Apr 18, 2015Observed: 3.35 ft at 7:00PM Apr 18, 2015Observed: 3.35 ft at 7:30PM Apr 18, 2015Observed: 3.35 ft at 8:00PM Apr 18, 2015Observed: 3.35 ft at 8:30PM Apr 18, 2015Observed: 3.34 ft at 9:00PM Apr 18, 2015Observed: 3.34 ft at 9:30PM Apr 18, 2015Observed: 3.34 ft at 10:00PM Apr 18, 2015Observed: 3.33 ft at 10:30PM Apr 18, 2015Observed: 3.33 ft at 11:00PM Apr 18, 2015Observed: 3.33 ft at 11:30PM Apr 18, 2015Observed: 3.33 ft at 12:00AM Apr 19, 2015Observed: 3.33 ft at 12:30AM Apr 19, 2015Observed: 3.32 ft at 1:00AM Apr 19, 2015Observed: 3.32 ft at 1:30AM Apr 19, 2015Observed: 3.32 ft at 2:00AM Apr 19, 2015Observed: 3.31 ft at 2:30AM Apr 19, 2015Observed: 3.31 ft at 3:00AM Apr 19, 2015Observed: 3.31 ft at 3:30AM Apr 19, 2015Observed: 3.31 ft at 4:00AM Apr 19, 2015Observed: 3.3 ft at 4:30AM Apr 19, 2015Observed: 3.3 ft at 5:00AM Apr 19, 2015Observed: 3.3 ft at 5:30AM Apr 19, 2015Observed: 3.3 ft at 6:00AM Apr 19, 2015Observed: 3.3 ft at 6:30AM Apr 19, 2015Observed: 3.3 ft at 7:00AM Apr 19, 2015Observed: 3.29 ft at 7:30AM Apr 19, 2015Observed: 3.29 ft at 8:00AM Apr 19, 2015Observed: 3.29 ft at 8:30AM Apr 19, 2015Observed: 3.29 ft at 9:00AM Apr 19, 2015Observed: 3.29 ft at 9:30AM Apr 19, 2015Observed: 3.29 ft at 10:00AM Apr 19, 2015Observed: 3.28 ft at 10:30AM Apr 19, 2015Observed: 3.28 ft at 11:00AM Apr 19, 2015Observed: 3.28 ft at 11:30AM Apr 19, 2015Observed: 3.28 ft at 12:00PM Apr 19, 2015Observed: 3.28 ft at 12:30PM Apr 19, 2015Observed: 3.28 ft at 1:00PM Apr 19, 2015Observed: 3.28 ft at 1:30PM Apr 19, 2015Observed: 3.28 ft at 2:00PM Apr 19, 2015Observed: 3.27 ft at 2:30PM Apr 19, 2015Observed: 3.27 ft at 3:00PM Apr 19, 2015Observed: 3.27 ft at 3:30PM Apr 19, 2015Observed: 3.27 ft at 4:00PM Apr 19, 2015Observed: 3.27 ft at 4:30PM Apr 19, 2015Observed: 3.27 ft at 5:00PM Apr 19, 2015Observed: 3.26 ft at 5:30PM Apr 19, 2015Observed: 3.26 ft at 6:00PM Apr 19, 2015Observed: 3.26 ft at 6:30PM Apr 19, 2015Observed: 3.26 ft at 7:00PM Apr 19, 2015Observed: 3.25 ft at 7:30PM Apr 19, 2015Observed: 3.25 ft at 8:00PM Apr 19, 2015Observed: 3.25 ft at 8:30PM Apr 19, 2015Observed: 3.25 ft at 9:00PM Apr 19, 2015Observed: 3.25 ft at 9:30PM Apr 19, 2015Observed: 3.25 ft at 10:00PM Apr 19, 2015Observed: 3.24 ft at 10:30PM Apr 19, 2015Observed: 3.24 ft at 11:00PM Apr 19, 2015Observed: 3.24 ft at 11:30PM Apr 19, 2015Observed: 3.24 ft at 12:00AM Apr 20, 2015Observed: 3.23 ft at 12:30AM Apr 20, 2015Observed: 3.23 ft at 1:00AM Apr 20, 2015Observed: 3.23 ft at 1:30AM Apr 20, 2015Observed: 3.23 ft at 2:00AM Apr 20, 2015Observed: 3.22 ft at 2:30AM Apr 20, 2015Observed: 3.22 ft at 3:00AM Apr 20, 2015Observed: 3.22 ft at 3:30AM Apr 20, 2015Observed: 3.22 ft at 4:00AM Apr 20, 2015Observed: 3.22 ft at 4:30AM Apr 20, 2015Observed: 3.21 ft at 5:00AM Apr 20, 2015Observed: 3.21 ft at 5:30AM Apr 20, 2015Observed: 3.21 ft at 6:00AM Apr 20, 2015Observed: 3.21 ft at 6:30AM Apr 20, 2015Observed: 3.21 ft at 7:00AM Apr 20, 2015Observed: 3.21 ft at 7:30AM Apr 20, 2015Observed: 3.21 ft at 8:00AM Apr 20, 2015Observed: 3.2 ft at 8:30AM Apr 20, 2015Observed: 3.2 ft at 9:00AM Apr 20, 2015Observed: 3.2 ft at 9:30AM Apr 20, 2015Observed: 3.2 ft at 10:00AM Apr 20, 2015Observed: 3.2 ft at 10:30AM Apr 20, 2015Observed: 3.2 ft at 11:00AM Apr 20, 2015Observed: 3.19 ft at 11:30AM Apr 20, 2015Observed: 3.19 ft at 12:00PM Apr 20, 2015Observed: 3.19 ft at 12:30PM Apr 20, 2015Observed: 3.19 ft at 1:00PM Apr 20, 2015Observed: 3.19 ft at 1:30PM Apr 20, 2015Observed: 3.2 ft at 2:00PM Apr 20, 2015Observed: 3.19 ft at 2:30PM Apr 20, 2015Observed: 3.19 ft at 3:00PM Apr 20, 2015Observed: 3.19 ft at 3:30PM Apr 20, 2015Observed: 3.19 ft at 4:00PM Apr 20, 2015Observed: 3.19 ft at 4:30PM Apr 20, 2015Observed: 3.19 ft at 5:00PM Apr 20, 2015Observed: 3.18 ft at 5:30PM Apr 20, 2015Observed: 3.18 ft at 6:00PM Apr 20, 2015Observed: 3.18 ft at 6:30PM Apr 20, 2015Observed: 3.18 ft at 7:00PM Apr 20, 2015Observed: 3.18 ft at 7:30PM Apr 20, 2015Observed: 3.18 ft at 8:00PM Apr 20, 2015Observed: 3.17 ft at 8:30PM Apr 20, 2015Observed: 3.17 ft at 9:00PM Apr 20, 2015Observed: 3.17 ft at 9:30PM Apr 20, 2015Observed: 3.17 ft at 10:00PM Apr 20, 2015Observed: 3.17 ft at 10:30PM Apr 20, 2015Observed: 3.17 ft at 11:00PM Apr 20, 2015Observed: 3.16 ft at 11:30PM Apr 20, 2015Observed: 3.16 ft at 12:00AM Apr 21, 2015Observed: 3.15 ft at 12:30AM Apr 21, 2015Observed: 3.15 ft at 1:00AM Apr 21, 2015Observed: 3.15 ft at 1:30AM Apr 21, 2015Observed: 3.15 ft at 2:00AM Apr 21, 2015Observed: 3.15 ft at 2:30AM Apr 21, 2015Observed: 3.15 ft at 3:00AM Apr 21, 2015Observed: 3.14 ft at 3:30AM Apr 21, 2015Observed: 3.14 ft at 4:00AM Apr 21, 2015Highest Forecast: 3.15 ft 5:00AM Apr 21, 2015Forecast: 3.14 ft 11:00AM Apr 21, 2015Forecast: 3.13 ft 5:00PM Apr 21, 2015Forecast: 3.11 ft 11:00PM Apr 21, 2015Forecast: 3.1 ft 5:00AM Apr 22, 2015Forecast: 3.09 ft 11:00AM Apr 22, 2015Forecast: 3.08 ft 5:00PM Apr 22, 2015Forecast: 3.06 ft 11:00PM Apr 22, 2015Forecast: 3.04 ft 5:00AM Apr 23, 2015Forecast: 3.02 ft 11:00AM Apr 23, 2015Forecast: 3.01 ft 5:00PM Apr 23, 2015Forecast: 2.99 ft 11:00PM Apr 23, 2015Forecast: 2.98 ft 5:00AM Apr 24, 2015Forecast: 2.98 ft 11:00AM Apr 24, 2015Forecast: 2.98 ft 5:00PM Apr 24, 2015Forecast: 2.98 ft 11:00PM Apr 24, 2015Forecast: 2.95 ft 5:00AM Apr 25, 2015Forecast: 2.94 ft 11:00AM Apr 25, 2015Forecast: 2.95 ft 5:00PM Apr 25, 2015Forecast: 2.96 ft 11:00PM Apr 25, 2015USGS--Water Resources of the United StatesTIDO3(plotting HGIRG) Graph Created (4:34AM Apr 21, 2015)ObservedForecast (issued 8:52AM Apr 20)Latest observed value: 3.14 ft at 4:00 AM PDT 21-Apr-2015. Flood Stage is 18 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Alsea River near Tidewater are issued routinely year-round.
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Flood Categories (in feet)
Major Flood Stage: 23
Moderate Flood Stage: 0
Flood Stage: 18
Action Stage: 16
Low Stage (in feet): 0

Historic Crests
(1) 29.50 ft on 02/03/1890
(2) 27.44 ft on 12/22/1964
(3) 25.71 ft on 01/21/1972
(4) 24.55 ft on 01/16/1974
(5) 24.04 ft on 12/28/1998
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 18.89 ft on 12/21/2014
(2) 18.88 ft on 11/20/2012
(3) 23.61 ft on 01/20/2012
(4) 21.80 ft on 12/04/2007
(5) 21.78 ft on 12/31/2005
Show More Recent Crests

(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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
24 Above 24 ft, Expect flooding of numerous homes in the 'Little Albany' area, along with widespread flooding of numerous roads and structures along the river.
23 Above 23 ft, Flooding begins at 'Alsea Riviera' and 'Little Albany' between Milepost 8 and 10 near Tidewater along State Hwy 34. Widespread lowland and pasture flooding will also continue.
20 Above 20 ft, Water begins to surround houses at the 'Little Albany' community on Highway 34 near Milepost 8. Widespread pasture and dairy land flooding can be expected. Flooding of numerous roads along and near the river occurs at this level.
18 Above 18 ft, expect minor flooding of low-lying pasture land, roads, and a few structures close to the river.
Photos
(1) USGS gage house
(2) Upstream view from USGS gage
(3) Downstream view from Thissell Rd Bridge just upstream of gage
About This Location Collapse

Latitude: 44.387778° N, Longitude: 123.833333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 18 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 48.165 ft 66.165 ft 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
Archived/Historical Data at USACE DataQuery
10-day Forecast/Trend, Northwest River Forecast Center
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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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Page last modified: 12-Feb-2015 9:31 PM
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