Hurricane Oscar has rapidly intensified from a tropical storm, with sustained winds reaching 80 mph as it moves westward at 12 mph, according to the National Hurricane Center. The Bahamas and the Turks and Caicos Islands have issued hurricane warnings, while Cuba has issued a hurricane watch for its provinces of Guantanamo, Holguin, and Las Tunas. Oscar is expected to bring heavy rain, with totals reaching up to 6 inches, and dangerous storm surges to the affected areas. The storm will likely stall near the southeastern Bahamas or eastern Cuba due to a frontal boundary and is expected to weaken early next week due to increased wind shear. Oscar poses no threat to the United States as it is forecast to shift northeastward. Meanwhile, Tropical Storm Nadine has formed off Mexico's Caribbean coast, impacting Belize and the Yucatan Peninsula with heavy rain and tropical storm conditions.