Several weather forecasts from European Meteorological institutes:

• NO – Tekstvarsel for havområdene (Norwegian Meteorological Institute; text in English)
• GB – Shipping Forecast (British Met Office; text in English)
• NL – Scheepsweerbericht KNMI (Royal Netherlands Meteorological Institute; only in Dutch)
• DE – Seevorhersagen Nordsee 3 Tage (Germany’s National Meteorological Service; text in English)
• BE – Zee- en kustweerbericht (Belgium Royal Meteorological Institute; only in Dutch or French)

Also the following app’s and websites could be very usefull:

• Windy weather forecasting service based on several open data resources