The Gulf Coast braced Sunday for a potentially devastating hit from twin hurricanes as two dangerous storms swirled toward the U.S from the Gulf of Mexico and the Caribbean. Officials feared a history-making onslaught of life-threatening winds and flooding along the coast, stretching from Texas to Alabama.
A storm dubbed Marco grew into a hurricane Sunday as it churned up the Gulf of Mexico toward Louisiana. But, Marco’s intensity was fluctuating, forecasters said, and the system was downgraded to a tropical storm Sunday night.
Another potential hurricane, Tropical Storm Laura, lashed the Dominican Republic and Haiti, and was tracking toward the same region of the U.S. coast, carrying the risk of growing into a far more powerful storm.
Experts said computer models show Laura could make landfall with winds exceeding 110 mph (177 kph), and rain bands from both storms could bring a combined total of 2 feet (0.6 meters) of rain to parts of Louisiana and several feet of potentially deadly storm surge.
“There has never been anything we’ve seen like this before, where you can have possibly two hurricanes hitting within miles of each over a 48-hour period,” said Benjamin Schott, meteorologist in charge of the National Weather Service’s Slidell, Louisiana, office.
The combination of the rain and storm surge in a day or two means “you’re looking at a potential for a major flood event that lasts for some time,” said weather service tropical program coordinator Joel Cline. “And that’s not even talking about the wind.”
Where precisely Marco was headed — and when the storm might arrive — remained elusive Sunday. Marco was initially expected to make landfall Monday, but the National Hurricane Center said that “a major shift” in a majority of their computer models now show the storm stalling off the Louisiana coast for a few days before landing west of New Orleans — and likely weakening before hitting the state. However, skeptical meteorologists at the center were waiting to see if the trends continue before making a dramatic revision in their forecast.
A look at the 10 costliest hurricanes to ever hit the US