Marine weather apps like Windy or Predict wind are great and usually quite accurate, but they DON’T SHOW local short lived forecasts like thunderstorms.
But local Non-marine forecast apps do show a reliable prediction of wind patterns and sea level gusts.
You need both.
We have been saved a number of times because of thunderstorm forecasting high winds on local forecast apps like Accuweather or even just the apple weather app and Lightening strike apps. Where the main marine forecast apps did not show these high winds.