I also take exception to the first tip when it mentioned "TV and Radio" as the source to get an accurate weather forecast. In the internet age, that is actually the WORST way to get the latest weather. There are many apps that will give you very detailed weather for a very localized area. (Dark Sky is my favorite but I think that's only available on Apple devices these days).
As for #7, C'mon, I don't think I've ever been on a private boat where there wasn't a cooler or two of cold brews. But of course, the skipper should stay sober.
Besides Weather Underground, we use Windy. Keeping us safe for a while now.