USGS 12020800 SOUTH FORK CHEHALIS RIVER NEAR WILDWOOD, WA

PROVISIONAL DATA SUBJECT TO REVISION

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Additional Data and Information.-- Latest shifted rating.

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
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gage
This station is operated seasonally, from October 1 to April 30.


gage
Gage height datum conversion to the NAVD88 datum for this streamgage was completed on May 1, 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 1.27 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
  
2024-08-23  2024-12-21
1998-10-23  2024-12-21
2007-10-01  2024-12-21







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Precipitation, total, inches
Most recent instantaneous value: 0.00 12-21-2024   06:15 PST
Graph of Precipitation, total, inches

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Discharge, cubic feet per second
Most recent instantaneous value: 277 12-21-2024   06:15 PST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Dec 21 based on 26 water years of record more
Min
(2009)		 25th
percen-
tile		 Median Most Recent
Instantaneous
Value Dec 21		 Mean 75th
percen-
tile		 Max
(2020)
56.5 97 256 277 347 380 2300

Gage height, feet, [NAVD 1988 as of 5/1/2018]
Most recent instantaneous value: 357.94 12-21-2024   06:15 PST
Graph of Gage height, feet, [NAVD 1988 as of 5/1/2018]

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