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High-resolution wave modelling for coastal waters.
Sample content — not an operational product
The wave model output is not yet published from the GMS forecast system. The figures on this page are illustrative and must not be used for any weather, marine or safety decision.
Model output will appear here once the nearshore model is connected.
Model output will appear here once the nearshore model is connected.
| Run | Issued | Covers |
|---|---|---|
| 04 UTC | Early morning | Next 48 hours |
| 10 UTC | Late morning | Next 48 hours |
| 16 UTC | Afternoon | Next 48 hours |
| 22 UTC | Overnight | Next 48 hours |
Global wave models work on a grid far coarser than Grenada is wide. They describe the open-ocean swell arriving at the island, but not what that swell does once it reaches shallow water and meets the coastline.
A nearshore model resolves refraction, shoaling and sheltering — why the same offshore swell produces a calm leeward anchorage and dangerous surf on an east-facing beach a few kilometres away.
Wave energy flux measures the rate at which wave energy arrives at a stretch of coast. It is not a mariner's product — it is a coastal management one.
It indicates where erosion pressure concentrates during a swell event, which informs beach management, coastal infrastructure design and setback planning. It is also the starting point for assessing marine renewable energy potential.