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Weather Forecast Office Portland, OR Northwest River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Willapa River at Willapa Stage (ft)Flow (kcfs)Observed: 4.07 ft at 2:15AM May 23, 2013Observed: 4.07 ft at 2:30AM May 23, 2013Observed: 4.08 ft at 2:45AM May 23, 2013Observed: 4.08 ft at 3:00AM May 23, 2013Observed: 4.07 ft at 3:15AM May 23, 2013Observed: 4.07 ft at 3:30AM May 23, 2013Observed: 4.07 ft at 3:45AM May 23, 2013Observed: 4.07 ft at 4:00AM May 23, 2013Observed: 4.08 ft at 4:15AM May 23, 2013Observed: 4.08 ft at 4:30AM May 23, 2013Observed: 4.08 ft at 4:45AM May 23, 2013Observed: 4.08 ft at 5:00AM May 23, 2013Observed: 4.07 ft at 5:15AM May 23, 2013Observed: 4.08 ft at 5:30AM May 23, 2013Observed: 4.08 ft at 5:45AM May 23, 2013Observed: 4.09 ft at 6:00AM May 23, 2013Observed: 4.08 ft at 6:15AM May 23, 2013Observed: 4.08 ft at 6:30AM May 23, 2013Observed: 4.09 ft at 6:45AM May 23, 2013Observed: 4.09 ft at 7:00AM May 23, 2013Observed: 4.1 ft at 7:15AM May 23, 2013Observed: 4.09 ft at 7:30AM May 23, 2013Observed: 4.09 ft at 7:45AM May 23, 2013Observed: 4.1 ft at 8:00AM May 23, 2013Observed: 4.1 ft at 8:15AM May 23, 2013Observed: 4.11 ft at 8:30AM May 23, 2013Observed: 4.12 ft at 8:45AM May 23, 2013Observed: 4.11 ft at 9:00AM May 23, 2013Observed: 4.11 ft at 9:15AM May 23, 2013Observed: 4.12 ft at 9:30AM May 23, 2013Observed: 4.12 ft at 9:45AM May 23, 2013Observed: 4.13 ft at 10:00AM May 23, 2013Observed: 4.13 ft at 10:15AM May 23, 2013Observed: 4.13 ft at 10:30AM May 23, 2013Observed: 4.14 ft at 10:45AM May 23, 2013Observed: 4.14 ft at 11:00AM May 23, 2013Observed: 4.14 ft at 11:15AM May 23, 2013Observed: 4.14 ft at 11:30AM May 23, 2013Observed: 4.14 ft at 11:45AM May 23, 2013Observed: 4.15 ft at 12:00PM May 23, 2013Observed: 4.15 ft at 12:15PM May 23, 2013Observed: 4.15 ft at 12:30PM May 23, 2013Observed: 4.15 ft at 12:45PM May 23, 2013Observed: 4.15 ft at 1:00PM May 23, 2013Observed: 4.15 ft at 1:15PM May 23, 2013Observed: 4.16 ft at 1:30PM May 23, 2013Observed: 4.16 ft at 1:45PM May 23, 2013Observed: 4.17 ft at 2:00PM May 23, 2013Observed: 4.17 ft at 2:15PM May 23, 2013Observed: 4.18 ft at 2:30PM May 23, 2013Observed: 4.18 ft at 2:45PM May 23, 2013Observed: 4.19 ft at 3:00PM May 23, 2013Observed: 4.19 ft at 3:15PM May 23, 2013Observed: 4.19 ft at 3:30PM May 23, 2013Observed: 4.2 ft at 3:45PM May 23, 2013Observed: 4.2 ft at 4:00PM May 23, 2013Observed: 4.21 ft at 4:15PM May 23, 2013Observed: 4.22 ft at 4:30PM May 23, 2013Observed: 4.23 ft at 4:45PM May 23, 2013Observed: 4.24 ft at 5:00PM May 23, 2013Observed: 4.26 ft at 5:15PM May 23, 2013Observed: 4.27 ft at 5:30PM May 23, 2013Observed: 4.27 ft at 5:45PM May 23, 2013Observed: 4.29 ft at 6:00PM May 23, 2013Observed: 4.31 ft at 6:15PM May 23, 2013Observed: 4.32 ft at 6:30PM May 23, 2013Observed: 4.33 ft at 6:45PM May 23, 2013Observed: 4.35 ft at 7:00PM May 23, 2013Observed: 4.38 ft at 7:15PM May 23, 2013Observed: 4.4 ft at 7:30PM May 23, 2013Observed: 4.42 ft at 7:45PM May 23, 2013Observed: 4.45 ft at 8:00PM May 23, 2013Observed: 4.47 ft at 8:15PM May 23, 2013Observed: 4.49 ft at 8:30PM May 23, 2013Observed: 4.52 ft at 8:45PM May 23, 2013Observed: 4.54 ft at 9:00PM May 23, 2013Observed: 4.58 ft at 9:15PM May 23, 2013Observed: 4.61 ft at 9:30PM May 23, 2013Observed: 4.64 ft at 9:45PM May 23, 2013Observed: 4.67 ft at 10:00PM May 23, 2013Observed: 4.73 ft at 10:15PM May 23, 2013Observed: 4.76 ft at 10:30PM May 23, 2013Observed: 4.81 ft at 10:45PM May 23, 2013Observed: 4.85 ft at 11:00PM May 23, 2013Observed: 4.9 ft at 11:15PM May 23, 2013Observed: 4.96 ft at 11:30PM May 23, 2013Observed: 5.02 ft at 11:45PM May 23, 2013Observed: 5.06 ft at 12:00AM May 24, 2013Observed: 5.14 ft at 12:15AM May 24, 2013Observed: 5.21 ft at 12:30AM May 24, 2013Observed: 5.25 ft at 12:45AM May 24, 2013Observed: 5.32 ft at 1:00AM May 24, 2013Observed: 5.38 ft at 1:15AM May 24, 2013Observed: 5.43 ft at 1:30AM May 24, 2013Observed: 5.48 ft at 1:45AM May 24, 2013Observed: 5.52 ft at 2:00AM May 24, 2013Observed: 5.55 ft at 2:15AM May 24, 2013Observed: 5.57 ft at 2:30AM May 24, 2013Observed: 5.57 ft at 2:45AM May 24, 2013Observed: 5.6 ft at 3:00AM May 24, 2013Observed: 5.59 ft at 3:15AM May 24, 2013Observed: 5.6 ft at 3:30AM May 24, 2013Observed: 5.6 ft at 3:45AM May 24, 2013Highest Observation: 5.61 ft at 4:00AM May 24, 2013Observed: 5.6 ft at 4:15AM May 24, 2013Observed: 5.6 ft at 4:30AM May 24, 2013Observed: 5.6 ft at 4:45AM May 24, 2013Observed: 5.59 ft at 5:00AM May 24, 2013Observed: 5.59 ft at 5:15AM May 24, 2013Observed: 5.56 ft at 5:30AM May 24, 2013Observed: 5.56 ft at 5:45AM May 24, 2013Observed: 5.55 ft at 6:00AM May 24, 2013Observed: 5.53 ft at 6:15AM May 24, 2013Observed: 5.51 ft at 6:30AM May 24, 2013Observed: 5.5 ft at 6:45AM May 24, 2013Observed: 5.49 ft at 7:00AM May 24, 2013Observed: 5.48 ft at 7:15AM May 24, 2013Observed: 5.43 ft at 7:30AM May 24, 2013Observed: 5.42 ft at 7:45AM May 24, 2013Observed: 5.41 ft at 8:00AM May 24, 2013Observed: 5.39 ft at 8:15AM May 24, 2013Observed: 5.37 ft at 8:30AM May 24, 2013Observed: 5.36 ft at 8:45AM May 24, 2013Observed: 5.34 ft at 9:00AM May 24, 2013Observed: 5.34 ft at 9:15AM May 24, 2013Observed: 5.31 ft at 9:30AM May 24, 2013Observed: 5.3 ft at 9:45AM May 24, 2013Observed: 5.27 ft at 10:00AM May 24, 2013Observed: 5.26 ft at 10:15AM May 24, 2013Observed: 5.24 ft at 10:30AM May 24, 2013Observed: 5.23 ft at 10:45AM May 24, 2013Observed: 5.21 ft at 11:00AM May 24, 2013Observed: 5.19 ft at 11:15AM May 24, 2013Observed: 5.18 ft at 11:30AM May 24, 2013Observed: 5.17 ft at 11:45AM May 24, 2013Observed: 5.16 ft at 12:00PM May 24, 2013Observed: 5.15 ft at 12:15PM May 24, 2013Observed: 5.14 ft at 12:30PM May 24, 2013Observed: 5.14 ft at 12:45PM May 24, 2013Observed: 5.12 ft at 1:00PM May 24, 2013Observed: 5.12 ft at 1:15PM May 24, 2013Observed: 5.1 ft at 1:30PM May 24, 2013Observed: 5.09 ft at 1:45PM May 24, 2013Observed: 5.09 ft at 2:00PM May 24, 2013Observed: 5.07 ft at 2:15PM May 24, 2013Observed: 5.07 ft at 2:30PM May 24, 2013Observed: 5.05 ft at 2:45PM May 24, 2013Observed: 5.04 ft at 3:00PM May 24, 2013Observed: 5.03 ft at 3:15PM May 24, 2013Observed: 5.01 ft at 3:30PM May 24, 2013Observed: 5 ft at 3:45PM May 24, 2013Observed: 5 ft at 4:00PM May 24, 2013Observed: 5 ft at 4:15PM May 24, 2013Observed: 4.98 ft at 4:30PM May 24, 2013Observed: 4.97 ft at 4:45PM May 24, 2013Observed: 4.97 ft at 5:00PM May 24, 2013Observed: 4.95 ft at 5:15PM May 24, 2013Observed: 4.95 ft at 5:30PM May 24, 2013Observed: 4.94 ft at 5:45PM May 24, 2013Observed: 4.94 ft at 6:00PM May 24, 2013Observed: 4.92 ft at 6:15PM May 24, 2013Observed: 4.92 ft at 6:30PM May 24, 2013Observed: 4.92 ft at 6:45PM May 24, 2013Observed: 4.91 ft at 7:00PM May 24, 2013Observed: 4.9 ft at 7:15PM May 24, 2013Observed: 4.89 ft at 7:30PM May 24, 2013Observed: 4.88 ft at 7:45PM May 24, 2013Observed: 4.88 ft at 8:00PM May 24, 2013Observed: 4.87 ft at 8:15PM May 24, 2013Observed: 4.87 ft at 8:30PM May 24, 2013Observed: 4.87 ft at 8:45PM May 24, 2013Observed: 4.85 ft at 9:00PM May 24, 2013Observed: 4.85 ft at 9:15PM May 24, 2013Observed: 4.85 ft at 9:30PM May 24, 2013Observed: 4.84 ft at 9:45PM May 24, 2013Observed: 4.84 ft at 10:00PM May 24, 2013Observed: 4.83 ft at 10:15PM May 24, 2013Observed: 4.83 ft at 10:30PM May 24, 2013Observed: 4.81 ft at 10:45PM May 24, 2013Observed: 4.82 ft at 11:00PM May 24, 2013Observed: 4.81 ft at 11:15PM May 24, 2013Observed: 4.8 ft at 11:30PM May 24, 2013Observed: 4.81 ft at 11:45PM May 24, 2013Observed: 4.79 ft at 12:00AM May 25, 2013Observed: 4.78 ft at 12:15AM May 25, 2013Observed: 4.78 ft at 12:30AM May 25, 2013Observed: 4.78 ft at 12:45AM May 25, 2013Observed: 4.76 ft at 1:00AM May 25, 2013Observed: 4.77 ft at 1:15AM May 25, 2013Observed: 4.77 ft at 1:30AM May 25, 2013Observed: 4.78 ft at 1:45AM May 25, 2013Observed: 4.78 ft at 2:00AM May 25, 2013Observed: 4.79 ft at 2:15AM May 25, 2013Observed: 4.8 ft at 2:30AM May 25, 2013Observed: 4.81 ft at 2:45AM May 25, 2013Observed: 4.81 ft at 3:00AM May 25, 2013Observed: 4.8 ft at 3:15AM May 25, 2013Observed: 4.76 ft at 3:30AM May 25, 2013Observed: 4.75 ft at 3:45AM May 25, 2013Observed: 4.73 ft at 4:00AM May 25, 2013Observed: 4.71 ft at 4:15AM May 25, 2013Observed: 4.7 ft at 4:30AM May 25, 2013Observed: 4.7 ft at 4:45AM May 25, 2013Observed: 4.69 ft at 5:00AM May 25, 2013Observed: 4.68 ft at 5:15AM May 25, 2013Observed: 4.68 ft at 5:30AM May 25, 2013Observed: 4.68 ft at 5:45AM May 25, 2013Observed: 4.68 ft at 6:00AM May 25, 2013Observed: 4.67 ft at 6:15AM May 25, 2013Observed: 4.67 ft at 6:30AM May 25, 2013Observed: 4.66 ft at 6:45AM May 25, 2013Observed: 4.67 ft at 7:00AM May 25, 2013Observed: 4.64 ft at 7:15AM May 25, 2013Observed: 4.64 ft at 7:30AM May 25, 2013Observed: 4.66 ft at 7:45AM May 25, 2013Observed: 4.64 ft at 8:00AM May 25, 2013Observed: 4.64 ft at 8:15AM May 25, 2013Observed: 4.63 ft at 8:30AM May 25, 2013Observed: 4.63 ft at 8:45AM May 25, 2013Observed: 4.62 ft at 9:00AM May 25, 2013Observed: 4.62 ft at 9:15AM May 25, 2013Observed: 4.63 ft at 9:30AM May 25, 2013Observed: 4.62 ft at 9:45AM May 25, 2013Observed: 4.62 ft at 10:00AM May 25, 2013Observed: 4.61 ft at 10:15AM May 25, 2013Observed: 4.61 ft at 10:30AM May 25, 2013Observed: 4.6 ft at 10:45AM May 25, 2013Observed: 4.6 ft at 11:00AM May 25, 2013Observed: 4.6 ft at 11:15AM May 25, 2013Observed: 4.58 ft at 11:30AM May 25, 2013Observed: 4.59 ft at 11:45AM May 25, 2013Observed: 4.58 ft at 12:00PM May 25, 2013Observed: 4.59 ft at 12:15PM May 25, 2013Observed: 4.58 ft at 12:30PM May 25, 2013Observed: 4.58 ft at 12:45PM May 25, 2013Observed: 4.57 ft at 1:00PM May 25, 2013Observed: 4.55 ft at 1:15PM May 25, 2013Observed: 4.58 ft at 1:30PM May 25, 2013Observed: 4.56 ft at 1:45PM May 25, 2013Observed: 4.56 ft at 2:00PM May 25, 2013Observed: 4.56 ft at 2:15PM May 25, 2013Observed: 4.56 ft at 2:30PM May 25, 2013Observed: 4.56 ft at 2:45PM May 25, 2013Observed: 4.55 ft at 3:00PM May 25, 2013Observed: 4.55 ft at 3:15PM May 25, 2013Observed: 4.57 ft at 3:30PM May 25, 2013Observed: 4.56 ft at 3:45PM May 25, 2013Observed: 4.55 ft at 4:00PM May 25, 2013Observed: 4.55 ft at 4:15PM May 25, 2013Observed: 4.55 ft at 4:30PM May 25, 2013Observed: 4.56 ft at 4:45PM May 25, 2013Observed: 4.55 ft at 5:00PM May 25, 2013Observed: 4.55 ft at 5:15PM May 25, 2013Observed: 4.54 ft at 5:30PM May 25, 2013Observed: 4.55 ft at 5:45PM May 25, 2013Observed: 4.54 ft at 6:00PM May 25, 2013Observed: 4.53 ft at 6:15PM May 25, 2013Observed: 4.54 ft at 6:30PM May 25, 2013Observed: 4.54 ft at 6:45PM May 25, 2013Observed: 4.54 ft at 7:00PM May 25, 2013Observed: 4.54 ft at 7:15PM May 25, 2013Observed: 4.54 ft at 7:30PM May 25, 2013Observed: 4.54 ft at 7:45PM May 25, 2013Observed: 4.53 ft at 8:00PM May 25, 2013Observed: 4.53 ft at 8:15PM May 25, 2013Observed: 4.53 ft at 8:30PM May 25, 2013Observed: 4.52 ft at 8:45PM May 25, 2013Observed: 4.53 ft at 9:00PM May 25, 2013Observed: 4.52 ft at 9:15PM May 25, 2013Observed: 4.53 ft at 9:30PM May 25, 2013Observed: 4.53 ft at 9:45PM May 25, 2013Observed: 4.53 ft at 10:00PM May 25, 2013Observed: 4.52 ft at 10:15PM May 25, 2013Observed: 4.52 ft at 10:30PM May 25, 2013Observed: 4.52 ft at 10:45PM May 25, 2013Observed: 4.52 ft at 11:00PM May 25, 2013Observed: 4.52 ft at 11:15PM May 25, 2013Observed: 4.52 ft at 11:30PM May 25, 2013Observed: 4.52 ft at 11:45PM May 25, 2013Observed: 4.52 ft at 12:00AM May 26, 2013Observed: 4.51 ft at 12:15AM May 26, 2013Observed: 4.52 ft at 12:30AM May 26, 2013Observed: 4.52 ft at 12:45AM May 26, 2013Observed: 4.51 ft at 1:00AM May 26, 2013Observed: 4.51 ft at 1:15AM May 26, 2013Observed: 4.51 ft at 1:30AM May 26, 2013Observed: 4.52 ft at 1:45AM May 26, 2013Forecast: 4.47 ft 5:00AM May 26, 2013Forecast: 4.44 ft 11:00AM May 26, 2013Forecast: 4.46 ft 5:00PM May 26, 2013Forecast: 4.48 ft 11:00PM May 26, 2013Forecast: 4.49 ft 5:00AM May 27, 2013Forecast: 4.53 ft 11:00AM May 27, 2013Forecast: 4.6 ft 5:00PM May 27, 2013Forecast: 4.67 ft 11:00PM May 27, 2013Forecast: 4.74 ft 5:00AM May 28, 2013Forecast: 4.79 ft 11:00AM May 28, 2013Forecast: 4.84 ft 5:00PM May 28, 2013Forecast: 4.87 ft 11:00PM May 28, 2013Forecast: 4.89 ft 5:00AM May 29, 2013Forecast: 4.89 ft 11:00AM May 29, 2013Forecast: 4.89 ft 5:00PM May 29, 2013Highest Forecast: 4.91 ft 11:00PM May 29, 2013Forecast: 4.9 ft 5:00AM May 30, 2013Forecast: 4.88 ft 11:00AM May 30, 2013Forecast: 4.84 ft 5:00PM May 30, 2013Forecast: 4.79 ft 11:00PM May 30, 2013USGS--Water Resources of the United StatesWILW1(plotting HGIRG) Graph Created (2:04AM May 26, 2013)ObservedForecast (issued 9:34AM May 25)Latest observed value: 4.52 ft at 1:45 AM PDT 26-May-2013. Flood Stage is 21 ft
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About this graph
Tabular Data
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Datum: Not Available
Metadata
NOTE: Forecasts for the Willapa River at Willapa are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:24
Moderate Flood Stage:0
Flood Stage:21
Action Stage:20

Historical Crests
(1) 27.28 ft on 12/20/1994
(2) 26.60 ft on 12/04/2007
(3) 24.53 ft on 03/19/1997
(4) 24.48 ft on 01/08/2009
(5) 24.43 ft on 02/24/1999
Show More Historical Crests

Low Water Records
(1) 4.99 ft on 09/01/1970
Legend
Gauge Location
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
24 ABOVE 24 FT...EXPECT MAJOR FLOODING. HISTORICALLY...NUMEROUS HOMES AND THE WILLAPA HATCHERY AT FORK CR HAVE BEEN COMPLETELY FLOODED AT THIS POINT...ALONG WITH MAJOR FLOODING OF NUMEROUS ROADS FROM FRANCES DOWNSTREAM TO RAYMOND...INCLUDING STATE ROUTE 6 AND U.S. HWY 101.
22 ABOVE 22 FT...EXPECT WIDESPREAD FLOODING. NUMEROUS ROADS ARE FLOODED WITH DEEP AND SWIFTLY MOVING WATER...INCLUDING HECKARD ROAD AND U.S. HWY 101. THE MAGNITUDE OF FLOODING ON U.S. HWY 101 WILL DEPEND ON THE TIDE.
21 ABOVE 21 FT...EXPECT FLOODING OF SEVERAL ROADS ALONG THE RIVER...INCLUDING HECKARD ROAD. PORTIONS OF U.S. HWY 101 MAY BE FLOODED AS WELL IF FLOOD CREST CORRESPONDS TO HIGH TIDE. ALSO EXPECT MINOR FLOODING IN THE TOWN OF RAYMOND.
19 AT 19 FT...THE RIVER IS AT BANKFULL LEVEL. ABOVE THIS LEVEL...IT BEGINS TO SPILL OVER THE BANKS INTO ADJACENT LOW LANDS. SOME MINOR FLOODING IS POSSIBLE IN THE TOWN OF RAYMOND IF THIS RIVER LEVEL ACCOMPANIES THE HIGH TIDE.
About This Location Collapse

Latitude: 46.651111° N, Longitude: 123.651667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 21 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 3.57 ft 24.57 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
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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Portland, OR 97230-1089
(503) 261-9246
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Page last modified: 13-Mar-2013 6:31 PM 		Disclaimer
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