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 211.5 feet. Thurston County has Flood Information for this gage.

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

• Skookumchuck Dam, LLC
• Thurston County
• USGS

Station Notes

The 15-minute precipitation data for this station are temporary and will only be displayed for 120 days. Time series of 15-minute or cumulative daily values will NOT be available for retrieval following the 120-day display period. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

Gage height datum conversion to the NAVD88 datum for this streamgage was completed on May 3, 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 198.15 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.

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