Yes, you should search the forums
. I typed "SSB weather
portable" for the search keywords and found a bunch of discussions.
Here's what to look for: propagation
(time, frequency, and location), interference
(on your boat, and the neighborhood), and antenna
(this is pretty easy for a receive-only radio). Get these figured out and you should be fine.
An external antenna
can help. I've been able to pick up distant weather stations using a built-in whip, but if you've got on-board interference
getting the antenna even a few feet removed from the interference
source can make a big deal.
There are many broadcast stations around the world that you can use for practice. It doesn't matter what they're transmitting, you can use them to get experience with the propagation issues. There are just some signals you *can't* receive. Learn about this stuff.