Sev­er­al Caribbean coun­tries are tonight brac­ing for the pas­sage of Trop­i­cal Storm Fiona.

T​rop­i­cal storm warn­ings are in ef­fect for Puer­to Ri­co and the Vir­gin Is­lands, as well as An­tigua, Bar­bu­da, St. Kitts, Nevis, Montser­rat, An­guil­la, Sa­ba and St. Eu­sta­tius, St. Maarten, Guade­loupe, St. Barthele­my and St. Mar­tin.

Trop­i­cal storm con­di­tions were ex­pect­ed in the warn­ing area this week­end.

T​he storm could bring heavy rain this week­end there and oth­er north­ern Caribbean is­lands.

Puer­to Ri­co in par­tic­u­lar is sub­ject to flood­ing, land­slides and pow­er out­ages when a storm hits. All could come in­to play for any­one liv­ing or vis­it­ing the is­land.

A​head of the storm, the Na­tion­al Weath­er Ser­vice warned of a high risk of rip cur­rents on area beach­es Fri­day night.

T​he U.S. Coast Guard has closed ports in Puer­to Ri­co and the U.S. Vir­gin Is­lands to in­bound com­mer­cial ves­sel traf­fic.

The U.S. Em­bassy in the Ba­hamas is­sued a weath­er alert ad­vis­ing vis­i­tors and res­i­dents there and in the Turks and Caicos to take ba­sic pre­cau­tions in­clud­ing check­ing sup­plies of food and wa­ter. Tourists in par­tic­u­lar were told to be sure that fam­i­ly or friends know their plans for the storm, and to talk to staff where they are stay­ing about the fa­cil­i­ty's emer­gency plan.

Do­mini­ca and parts of the Do­mini­can Re­pub­lic are un­der trop­i­cal storm watch­es, mean­ing that trop­i­cal storm con­di­tions are pos­si­ble with­in the next 48 hours.

T​he storm is ex­pect­ed to be­come a hur­ri­cane next week in the At­lantic Ocean.

Fiona's fu­ture track is still un­cer­tain, but now is a good time for any­one along the U.S. Gulf and At­lantic coasts to en­sure they're ready for a storm.