St.Helen 

Weather Forecast data in Navily is provided by GreatCircle who uses the GFS and Arome data models to establish its forecasts.
The Protection Score is calculated by comparing the protection data available on each anchorage with the following data from the weather forecasts : wind speed and gusts, wind angle, primary swell angle & swell height. Our algorithm then calculates a protection score that represents how ideal an anchorage is given the predicted weather.
Keep in mind however that an anchorage might have a great protection score and still be a poor choice for other reasons : Loud, bad holding, crowded… In the same way, an anchorage might have a bad score and still be acceptable because the forecast predicts little swell and little to no wind.
72h forecast with Navily Premium
Navily Premium subscribers enjoy forecasts and automatic protection scores with a 72 hour window. Remember to subscribe for a relaxing cruise.
Warning
The skipper of the boat is solely responsible for the choice of anchorage, the security of his crew and the security of his vessel. In case of issue with weather forecasts or protection score calculations, please report immediately to help@navily.com. Navily cannot be held responsible for any direct or indirect damage caused by the misuse of the information provided and/or by false, inaccurate or incomplete information.

Weather Forecast data in Navily is provided by GreatCircle who uses the GFS and Arome data models to establish its forecasts.
The Protection Score is calculated by comparing the protection data available on each anchorage with the following data from the weather forecasts : wind speed and gusts, wind angle, primary swell angle & swell height. Our algorithm then calculates a protection score that represents how ideal an anchorage is given the predicted weather.
Keep in mind however that an anchorage might have a great protection score and still be a poor choice for other reasons : Loud, bad holding, crowded… In the same way, an anchorage might have a bad score and still be acceptable because the forecast predicts little swell and little to no wind.
72h forecast with Navily Premium
Navily Premium subscribers enjoy forecasts and automatic protection scores with a 72 hour window. Remember to subscribe for a relaxing cruise.
Warning
The skipper of the boat is solely responsible for the choice of anchorage, the security of his crew and the security of his vessel. In case of issue with weather forecasts or protection score calculations, please report immediately to help@navily.com. Navily cannot be held responsible for any direct or indirect damage caused by the misuse of the information provided and/or by false, inaccurate or incomplete information.