The Anatomy of a Swell

Surfline has a really cool feature up right now detailing the anatomy of the recent swell that lit up Teahupoo last week.  It's interesting to see what goes into tracking storms and forecasting swells, because Surfline does a great job of it all the around the world every day.  It's the first site I visit every morning to check the regional forecast and get a look at a couple cams.