🌊 Storm Surge at a Seawall: Wind Setup, Inverse Barometer, Tide Timing and Overtopping Lab

Raise the sea with a storm: add tide, the low-pressure inverse barometer effect and wind setup on a shallow shelf (integrated with RK4), then watch waves overtop a seawall and flood the town behind it. An experiment shifts the surge through the tidal cycle to show why timing against high water matters.