No predictions loaded for 2048. This site serves NOAA predictions from its own store, and this period has not been fetched for Kvichak 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/ak/kvichak-9465342/2048
Kvichak, AK tide table 2048 (printable) · Tide Almanac