The folks who are most likely to have direct information on the status of local islands before/after Beryl is the Caribbean Emergency and Weather Net (CEWN).

Main Frequency is 3.815 Mhz LSB and secondary Frequency is 7.162 Mhz LSB

CEWN was directly involved in many lifesaving efforts during Hurricane Maria (I worked directly with them). This included saving the Prime Minister of the country of Dominica (relaying his location for a helicopter rescue), and dispatching rescuers to many location where people were trapped by debris, etc. #hamradio #disasters