TALLAHASSEE, Fla. — An enormous Hurricane Helene swamped parts of Mexico on Wednesday as it churned on a path forecasters said would take it to Florida as a potentially catastrophic storm with a surge that could swallow entire homes, a chilling warning that sent residents scrambling for higher ground, closed schools, and led to states of emergency throughout the Southeast. Helene's center was about 430 miles southwest of Tampa, Florida, the U.

S. National Hurricane Center said, and the hurricane was expected to intensify and accelerate as it crosses the Gulf of Mexico toward the Big Bend area of Florida's northwestern coast. Landfall was expected sometime Thursday evening, and the hurricane center said by then it could be a major Category 4 storm with winds above 129 mph.

Tropical storm conditions were expected in southern Florida Wednesday night, spreading northward and encompassing the rest of Florida as well as Georgia and South Carolina through Thursday night. The storm was moving north at 12 mph with top sustained winds of 85 mph Wednesday evening. Helene could create a life-threatening storm surge as high as 20 feet in parts of the Big Bend region, forecasters said.

Its tropical storm-force winds extended as far as 345 miles from its center. The fast-moving storm's wind and rain also could penetrate far inland: The hurricane center posted hurricane warnings well into Georgia and tropical storm warnings as far north as North Carolina, and it warned that much of the Sout.