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 318.0 feet. Lewis County has Flood Phase Information for this gage.
Funding for this site is provided by the cooperators / programs below:
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 304.90 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.
Summary of all available data for this site
Instantaneous-data availability statement
![Graph of Gage height, feet, [NAVD 1988 as of 5/8/2018]](https://natwebsdww01.cr.usgs.gov/nwisweb/data/img/USGS.12020000.150553.00065..20250922.20250929..0..gif)
