How to query the real weather forecast of Penglai and Long Island from the Internet?

I usually check here, which should be said to be the most authoritative.

To tell the truth, this is the weather forecast after all, and you are going to the sea. The weather at sea often changes quickly. On land, you can also predict it by the wind direction and the clouds in the surrounding cities. Therefore, the accuracy of marine weather forecast is still relatively poor.