Use a Tidal Stream Atlas when you are far enough away from a Tidal Diamond to make it ineffective. The Tidal Stream Atlas will give you a good overview of the set (speed in knots) of the Tide, and the drift (direction) over a wider area. You´ll need to know whether it is Springs or Neaps and the time before or after HW. Remember to use your box of Facts as discussed in the previous question.
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