'Very large' Storm Alberto brings floods to Gulf of Mexico coasts

Tropical Storm Alberto, the first named storm of 2024 Atlantic hurricane season, has formed over the western Gulf of Mexico, the US National Hurricane Center (NHC) said on Wednesday, bringing coastal flooding across the southern US coast.

The “very large” storm was located about 290km east of Tampico, Mexico, packing maximum sustained winds of 65km/h, the Miami-based forecaster said.

Alberto is likely to dissipate over Mexico as early as Thursday night, after bringing torrential rainfall, coastal flooding and strong winds from the centre along north-eastern Mexico and the south Texas coast.

The NHC warned of likely “life-threatening flooding and mudslides” across north-eastern Mexico, including Monterrey, Mexico's third-biggest city in Nuevo Leon state.

“We don't rule out that Tropical Storm Alberto could intensify to a Category 1 hurricane”, Alejandra Mendez, who heads Mexico's SMN national meteorological service, told a news conference, citing water temperatures above 31°C.

Hurricanes have sustained wind speeds of at least 119km/h.

Mendez added the storm was interacting with formations in the Pacific, which will together bring rains over large parts of Central America, a region that is still facing strong rainfall that left some 11 people dead in El Salvador over the weekend, due to landslides and road accidents.

The storm has gathered up humidity from both the Gulf and the Pacific Ocean, Mendez said, and should bring much-needed rain over swathes of Mexico, which has suffered from an extended drought that has drained the country's dams.

Some dams, especially in the northeastern Tamaulipas state, are as little as 8% full.

Nuevo Leon state Governor Samuel Garcia said people should avoid leaving the house when it is raining and workers were ready to address possible impacts on the electricity grid, water and sewage systems.

In the US as far as Louisiana, videos showed flooded coastal towns and water smashing into sea walls, while in Tamaulipas, videos shared on social media showed ominous grey skies as forecasters warned Alberto could bring waves as high as 6m.

Across the Gulf on Mexico's Yucatan peninsula, local news outlets filmed strong winds and heavy rainfall, after authorities recorded as much as 192mm in the last day.

The NHC predicted “moderate coastal flooding” along much of the Texan coast through Thursday, while Mexican forecasters expect further weekend rains in the south from another formation over the Caribbean.

Forecasters have warned that this year's Atlantic hurricane season will likely be highly active due to impacts from the La Nina weather pattern and warmer ocean waters.

Reuters