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USGS 12013500 WILLAPA RIVER NEAR WILLAPA, WA

PROVISIONAL DATA SUBJECT TO REVISION

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Additional Data and Information.-- Latest shifted rating.

Flood Stage.--The National Weather Service Flood Stage for this station is 21.0 feet.

Funding for this site is provided by the cooperators / programs below:

Station Notes

The datum of the gage has been determined to be 6.92 ft above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988, add 6.92 ft to gage height values.

tide
This station is affected by extreme high tides in Willapa Bay.


Boating safety tips
This station managed by the Western Washington Field Office (Tacoma).

Available Parameters Available Period
  
1987-10-01  2024-11-21
2007-10-01  2024-11-21







 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 2420 11-21-2024   04:45 PST
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Daily discharge, cubic feet per second -- statistics for Nov 21 based on 70 water years of record more
Min
(1988)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Nov 21
Max
(1999)
76.0 415 843 1260 1640 2420 4480


Gage height, feet

Most recent instantaneous value: 9.89 11-21-2024   04:45 PST
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