Everything you need right here!
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You can slow the animated chart down by just clicking on a block along the bottom of the chart. They represent 4 hourly time slots per day. Scroll back and forth to see how things are gonna change. Remember the yanks do their dates backwards, so month first, then day.
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Column 1 = swell direction and period, Column 2 is swell size in m, Column 3 is wind speed and direction. Wind speeds are given in km/h. Divide by 2 to get knots (actually 1.852).
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 Work out where the swell is coming from |
