Bertha was forecast to make landfall Wednesday night in the coastal and lightly populated part of Louisiana southeast of New Orleans, with wind as the biggest threat, according to Michael Buchanan, a National Weather Service meteorologist in Louisiana.
Early Wednesday, the storm was centered about 145 miles (235 kilometers) west-southwest of Panama City, Florida, and 75 miles (120 kilometers) east of the mouth of the Mississippi River. It was moving west at 6 mph (9 kph) with maximum sustained winds of 50 mph (85 kph), the Miami-based National Hurricane Center said.
A tropical storm warning was in effect from the line between Bay and Gulf counties in Florida west to Morgan City, Louisiana, as well as for metropolitan New Orleans and Lake Pontchartrain, the hurricane center said.
Storm surges up to 4 feet (1.2 meters) were possible in Louisiana from the Mississippi River mouth to the Alabama-Mississippi state line, with smaller surges in parts of Florida and Alabama, forecasters said.
Rain between 2 to 4 inches (5 to 10 centimeters) could fall from western Florida to the southern Louisiana coastline, with higher amounts in scattered areas that could cause flash flooding in urban areas.
Bertha was expected to weaken as it pushes into Texas, forecasters said.
