@trondsb1 It’s clearly displayed : It is Waves i.e. the total sea. [image: 1744199708133-79ee0ece-aefe-45a8-bf79-acc2e73233e9.jpeg] Waves is the mix of the wind waves and swells. See more about it in this related thread.

@trondsb1 Arrows mean the directions towards where the wind is blowing or the waves and swell are heading. Then for wind the numbers are the wind speeds. For waves and swell the numbers are the significant heights. All figures according to the units displayed in the left column and that you can change. See further information https://community.windy.com/topic/17449/swell?_=1712820582349