With up-to-date GRIB files on board, you have forecasts of air pressure, wind force and direction, temperature and precipitation. This helps you plan your route and estimate weather conditions.

With a barometer on board, you can also measure the current air pressure and easily follow its development. As you may know, high air pressure often indicates stable and good weather, while low air pressure predicts worse weather. A sudden drop in air pressure can indicate approaching stormy conditions.

By combining these data, you can estimate weather changes better and earlier, even if you do not have internet on board. This gives you the opportunity to adjust your route or make preparations on board in good time.