A tropical storm moving over the Gulf of Mexico is expected to grow into a hurricane, threatening the southern United States, including the coastlines of Texas and Louisiana, the National Hurricane Center (NHC) said.
Tropical Storm Francine is expected to travel over warm water that will serve as fuel to strengthen it before it makes landfall as a Category 1 hurricane on Wednesday with winds of 90mph (145km/h).
The storm is expected to stay just offshore of the coast of northeastern Mexico on Tuesday as it moves northeast towards the US.
Coastal residents are being warned of life-threatening storm surge of up to 10 feet (three metres) in places, as well as potential tornadoes and dangerous winds, forecasters said. Residents were encouraged to evacuate some low-lying areas.
As of Tuesday afternoon, Tropical Storm Francine was about 380 miles (610km) southwest of Morgan City, Louisiana, about 85 miles (136km) west of New Orleans. With maximum sustained wind speeds of 65mph (105km/h), it is 9mph (14.5 km/h) short of hurricane status.
The governor of Louisiana, Jeff Landry, urged residents “not to panic, but be prepared” and heed evacuation warnings. Some schools and colleges in the state closed on Tuesday through Wednesday as a precaution.
In Baton Rouge, Louisiana’s capital, long lines began forming as people filled petrol tanks and stocked up on groceries.
The Louisiana coast is still recovering from a battering in 2020 from hurricanes Laura and Delta, followed a year later by Hurricane Ida. The state recently marked the 19th anniversary of Hurricane Katrina, a major Category 5 storm that caused 1,392 deaths and damages estimated at almost $200bn.