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The plots show several types of current velocity data.
Red X's: The observed data from the PORTS current meters.
Blue dots: The astronomical prediction of the tidal currents. The same as Tidal Current Tables.
Black dash-dot: The model simulation for the past 24 hours, referred to as a Nowcast.
Green dash: The model Forecast for the next 24 hours.
Direction indicates the direction the current flows towards.
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