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USGS 12021800 CHEHALIS RIVER NEAR ADNA, WA

PROVISIONAL DATA SUBJECT TO REVISION

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Additional Data and Information.--Station data inventory and annual data report.

Flood Stage.--The National Weather Service has not established a Flood Stage for this station. Lewis County has Flood Phase information for this gage.

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

Station Notes
gage
Gage height datum conversion to the NAVD88 datum for this streamgage was completed on May 8, 2018. All reported gage heights and those associated with discharge measurements and stage-discharge ratings have been converted and are consistent with elevations based on the NAVD88 datum. A conversion factor of 3.40 ft was used to convert the old gage heights to the currently reported instantaneous gage height, discharge measurement gage heights, and stage-discharge rating points.



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

Available Parameters Available Period
All 3 Available Parameters for this site
  
00060 Discharge 2015-10-01  2018-09-18
00065 Gage height 2007-10-01  2018-09-18
63158 Stream level, NGVD 2007-10-01  2018-09-18

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


Discharge, cubic feet per second

Most recent instantaneous value: 107 09-18-2018   12:00 PDT
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Daily discharge, cubic feet per second -- statistics for Sep 18 based on 2 years of record more
Min
(2017)
Mean Median Max
(2016)
Most Recent
Instantaneous
Value Sep 18
50.3 75 75 100 107


Gage height, feet

Most recent instantaneous value: 192.85 09-18-2018   12:00 PDT
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Stream water level elevation above NGVD 1929, in feet

Most recent instantaneous value: 189.45 09-18-2018   12:00 PDT
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