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USGS 12027500 CHEHALIS RIVER NEAR GRAND MOUND, WA

PROVISIONAL DATA SUBJECT TO REVISION

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Additional Data and Information.--Station data inventory, annual data report, and latest shifted rating.

Flood Stage.--The National Weather Service Flood Stage for this station is 141.0 feet. Thurston County has Flood 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 10, 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 127.03 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.


Boating safety tips

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

Available Parameters Available Period
All 2 Available Parameters for this site
  
00060 Discharge 1987-10-01  2018-06-20
00065 Gage height 2007-10-01  2018-06-20

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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: 390 06-20-2018   12:00 PDT
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Daily discharge, cubic feet per second -- statistics for Jun 20 based on 89 years of record more
Min
(1951)
Most Recent
Instantaneous
Value Jun 20
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(1937)
297 390 432 649 776 862 3060


Gage height, feet

Most recent instantaneous value: 130.66 06-20-2018   12:00 PDT
Graph of  Gage height, feet

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