India, Sept. 27 -- Hazardous tropical weather was brewing in the Atlantic Ocean on Friday, with Humberto strengthening into a strong Category 5 hurricane and a system that forecasters called "Potential Tropical Cyclone Nine" making landfall in the Caribbean and threatening Florida and the Southeast United States.

The National Hurricane Center in Miami issued a fresh warning for Hurricane Humberto, stating that its maximum sustained winds reached 145 mph on Saturday. The storm was situated approximately 365 miles to the northeast near the northern Leeward Islands, WCVB5.

A tropical storm watch is in force for Florida's east coast, from Palm Beach/Martin County to Flagler/Volusia County.

Tropical storm conditions may develop along the Ce...