Tropical Storm Oscar formed on Saturday, the 15th named storm of this year’s Atlantic hurricane season and the second in less than a day. It’s expected to bring heavy rain to the Caribbean islands this weekend, including Cuba, which has been facing a nationwide electricity crisis.

Cuba issued a hurricane warning for its northern coast regarding Hurricane Oscar, which is forecast to make landfall in Cuba on Sunday night, the U.S. National Hurricane Center said on Saturday. Read more at straitstimes.

Tropical Storm Oscar has been upgraded to a hurricane just hours after forming near Turks and Caicos Islands Saturday morning, according to the National Hurricane Center. >> Video above: Lastest on the tropicsSign up for our NewslettersHurricane warnings are now in effect for the Turks and Caicos Islands and the Southeast Bahamas.