NOAA’s fifth annual update of the State of Coastal High Tide Flooding (HTF) provides HTF projections to inform adaptation and decision-making for the following year, and over the longer term. High tide flooding (aka ‘sunny day’ or ‘nuisance’ flooding) occurs when water levels measured at NOAA tide gauges exceed heights based on the minor-flood thresholds set by NOAA’s National Weather Service. This report updates high tide flood frequencies during 2018 (based on the meteorological year: May 2018-April 2019) at 98 NOAA tide gauge locations, and provides a statistical outlook for 2019 (May 2019 – April 2020).