My journey with weather mapping sites went in reverse order from this thread: Years ago when I ran a local weather blog I discovered the Nullschool site, then a few years later VentuSky, then Windy. I don't do the blog anymore but I still rely on Windy for visualizing weather conditions.
There's also https://www.predictwind.com/ which is a (very expensive) commercial service a lot of boat/yacht folks use for planning. I believe they also have some utilities for delivering compressed forecast data over satellite link as well.
They will sell you an irridium go and distribute data through their own email client but you can get all of that through Sailmail and using the saildocs email GRIB service for less money with a lot more flexibility, also I’m not sure how good their support is for using something like PACTOR over HF which if you are a licensed HAM is always free.
This stuff really only applies to offshore or other low bandwidth connection use cases. When I have decent cell/internet it’s hard to beat windy’s UI.
