No predictions loaded for 2042. This site serves NOAA predictions from its own store, and this period has not been fetched for Poplar Island 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/md/poplar-island-8572271/2042
Poplar Island, MD tide table 2042 (printable) · Tide Almanac