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.

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.

Hurricane Oscar, a surprisingly powerful but compact storm, is defying forecasts and posing a threat to the Turks and Caicos Islands, the southeastern Bahamas, and eastern Cuba. The storm, which was initially expected to remain a tropical storm,

At 1100 AM EDT (1500 UTC), the center of Tropical Storm Oscar was located near latitude 21.3 North, longitude 70.2 West. Oscar is moving toward the west near 13 mph (20 km/h) and this motion with

Tropical Storm Nadine formed early this morning in the western Caribbean. As of the 10 a.m. CDT advisory, Nadine has sustained winds up to 50 mph as it moves to the west at 8 mph. Nadine will be a short-lived storm as it will likely make landfall in Belize early this afternoon.