Understanding marine weather forecasts

Decoding marine forecasts, NAVTEX tables, lightstation reports, Beaufort wind scale and marine forecasts guides.

Services and information

Marine forecast guide

Understanding and using marine weather forecasts, syncoptic, localized and ice warnings.

Beaufort wind scale table

Wind speed, force, effects at sea, effects on land.

MAFOR decode table

Coded forecasts, Great Lakes, St. Lawrence River, Saguenay River.

NAVTEX decode table

Alphabetical weather terms, definitions.

Lightstation report – decode information

Reports from lightstations, Pacific coastal waters.

Regional marine weather services

Quick reference guides outline marine weather forecast services by region.


Overview of marine weather forecasts.

What we are doing


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