Highest astronomical tide definition

Highest astronomical tide means the highest water level which can be predicted to occur at a particular location under average meteorological conditions. The water elevation of the highest astronomical tide is expected to occur at a specific location. For Willapa Bay, official readings are observed at Toke Point Station over a nineteen (19) year period and reduced to mean values, then corrected to local tide stations at Nahcotta and Raymond. In the Willapa Bay Conservancy Shoreline Environment in the Pacific County Shoreline Master Program, HAT is used as a benchmark to establish setbacks and buffers for development proposals on shorelands landward of the ordinary high water mark within shoreline jurisdiction.
Highest astronomical tide means the highest tidal level which can be predicted to occur under average meteorological conditions and any combination of astronomical conditions;»
Highest astronomical tide means the highest level of the tides that can be predicted to occur under average meteorological conditions and under any combination of astronomical conditions.