@ockygto Right, significant waves height is more important for boating than Swell itself. If you compare NOAA wave charts with Windy using the NOAA model, Wavewatch3, the maps are quite similar for significant waves heights, which is reassuring: [image: 1561378743587-ec902b00-083e-49bb-bb97-fa4198e53c52.jpeg] [image: 1561378933056-c102e2a7-ca7d-43bd-afae-83e49d1ca47d.jpeg]