No predictions loaded for 2056. This site serves NOAA predictions from its own store, and this period has not been fetched for Union yet. Nothing is estimated or interpolated in its place. NOAA's own page for the station has the official table: tidesandcurrents.noaa.gov.
tidealmanac.site/us/wa/union-9445478/2056
Union, WA tide table 2056 (printable) · Tide Almanac