Wavecast guy has a new book!
I swore off Surfline several years back due to stupid UI changes and the shenanigans with Magic Seaweed. Found Wavecast and haven't looked back since. The man behind the site just released a new book and I bought it mostly as a show of support. Just finished reading it and highly recommend for anyone who wants to understand forecasts. He gives you the tools/background to do your own swell forecasting. His examples and explanations revolve around SoCal, but you could easily apply the concepts elsewhere.
tldr; people who want to understand forecasts should get his book. Or just start reading his forecasts regularly (free, no paywall!).
I'm not affiliated with him in any way. Just an average surfer who's grateful to Nathan for sharing his expertise with us all.
EDIT: The Wavecast blog links to the book, available on Amazon. https://a.co/d/00FNhTNU