Swell Signal

Big ships make rideable waves. Swell Signal tells you which ones, where the wave lands, and what time to be standing on the beach. I built it at Three Tree Point in Burien, Washington, after too many afternoons of guessing. A container ship would go by, the water would come alive twenty minutes later, and I was still in the car. So the app watches every large vessel nearby over live AIS, runs real ship wake physics on each one, and puts the answer on your Lock Screen: the boat, how good the wave should be, and the clock time it passes your spot. WHAT YOU SEE WHEN YOU OPEN IT A dark nautical chart of the Sound with every tracked ship on it, state ferries and their sailings included. Tap one for its size, speed, the wake it throws and a 3D view. The headline is always a time, like "2:20 PM, in 18 min", because that decides whether you grab the board. Nothing coming? It says so. PICK THE…