There are repeaters in some of the islands that rebroadcast on
VHF the US channel out of
Puerto Rico as well as local weather. We use Max Sea and download 7 day forcasts by
Globalstar sat
phone by
email. I have used this system for 4 years
offshore and close to islands in the
Caribbean and have found their forcasts as good as any subscription
service. Their forcasts are macro but micro-local forcasts can be obtained on AM-FM or
VHF. Global star
service drop-outs have not been a problem and until they launch their new satellites, the monthly unlimited service is
cheap. Many islands also offer
WiFi service - free or subscription- so weather downloads can be obtained off the internet.