SSB...just tune in chris parker
daily and that is all you ever need.
You can do it with a $200 receiver only if you want to go cheaply. With weather fax software & PC attached to the SSB receiver you can also download weather faxes, navtex reports as well.
EDIT: You can listen to Chris for free but personalized reports for passagemaking will cost some $$. He covers the Bahamas and Caribe several times each morning. Herb is used more by those making ocean passages in the Atlantic.