The Squaxin Island Tribe pays USGS to operate a stream flow gage on Goldsborough Creek near downtown Shelton (see:  http://nwis.waterdata.usgs.gov/wa/nwis/uv/?site_no=12076800&PARAmeter_cd=00060,00065).  The stream flow from the heavy rains yesterday and today have peaked at around 900 cfs.  That qualifies as a modest flood in the Goldsborough watershed.