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    • B

      Windy Wave Data
      General Discussion • windy wave swell data noaa • • btrimm

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      B

      @idefix37 and @vsinceac, thank you both very much for the replies and information.

    • S

      Swell Angle in Degrees
      Your Feedback and Suggestions • swell swell direction swell angle surf forecast • • saltyjoy

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      idefix37

      @saltyjoy
      In Settings choose ‘Display directions as number’

      24002704-E5F9-43AD-97E3-D2DFEA289E7A.jpeg

    • B

      Swell2 arrow always shows zero
      Bug Reports • waves swell swell2 arrow • • bob71

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      idefix37

      @bob71
      The Swell2 arrow does not always show zero.
      Here it shows 0.4m:

      Capture d’écran 2020-07-22 à 10.22.30.png

    • A

      Swell angle degrees missing on Android app
      Windy Maps - Feedback & Suggestions • android app swell feature request • • andynnnn

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      idefix37

      @andynnnn
      Are you talking about the slope angle of swell?
      Breaking waves are observed near the seashore where the water depths are reduced and when the ratio height/wave length is about 1/7 i.e. the wave steepness dramatically increases.
      Global waves models like ECMWF WAM and WW3 are not able to show that because their resolution is too low (13km and 22km) in particular to take into account a precise topography of seabed.
      More info on surf breaks:
      https://www.eoas.ubc.ca/courses/atsc113/sailing/met_concepts/08-met-waves/8c-breaking-waves/index.html
      https://en.m.wikipedia.org/wiki/Surf_break