Humberto is forecast to become a hurricane by Sunday night but is expected to stay offshore of Florida's eastern coast as it moves toward open waters.
Officials temporarily suspended aid efforts and closed a couple of small airports in the Bahamas on Saturday as Tropical Storm Humberto threatened to lash the archipelago's northwest region that was already hit by Hurricane Dorian two weeks ago.
Humberto's arrival coincides with a weekend visit to the Bahamas by UN Secretary-General Antonio Guterres aimed at supporting humanitarian efforts in the wake of Dorian, which reached the islands as a Category-5 storm and left thousands in need of food, water and shelter. The list of missing stands at an alarming 1,300 people and the death toll at 50.
But officials caution the list is preliminary and many people could just be unable to connect with loved ones.
Threatening to exacerbate islands' problems, winds and rains from Humberto could be expected in Grand Bahama and the nearby Abaco islands said chief meteorologist Shavonne Moxey-Bonamy.
"I know it might be a bit of a disheartening situation since we just got out of Dorian," she said.
At 11 am EDT, an almost stationary Humberto was located 45 kilometres east-northeast of Great Abaco Island, according to the US National Hurricane Center.
It had maximum sustained winds of 85 kph. There was a tropical storm warning in effect for the northwest Bahamas, except for Andros Island, and 2 to 4 inches of rain was expected, with isolated amounts of 6 inches.
"Rains are the biggest issue right now," parliament member Iram Lewis said by telephone. "People are still reeling from the first storm."
Humberto is forecast to become a hurricane by Sunday night but is expected to stay offshore of Florida's eastern coast as it moves toward open waters. Portions of the coasts of Florida and Georgia will see 1 to 2 inches of rain.
Reduced aid efforts
The hurricane centre said most of the heavy squalls were occurring north and east of the centre of the storm, which was passing just east of Abaco. However, government officials in the Bahamas took no chances and urged people in damaged homes to seek shelter as they announced that aid efforts would be temporarily affected.
"The weather system will slow down logistics," said Carl Smith, spokesman for the National Emergency Management Agency.
The distribution of meals in Grand Bahama was reduced ahead of the storm, and a spokesperson for the United Nations World Food Program said all flights into its logistics hub in Marsh Harbor in Abaco were suspended.
Later Saturday, WFO spokesperson Herve Verhoosel said the agency had resumed its activities in Marsh Harbor.
"Our team is back at work to support the population and relief organisations. Food and materials have been secured in newly erected prefabricated storage depots," Verhoosel said in a statement.
Dave McGregor, president and COO of the Grand Bahama Power Company, said crews would resume restoring power as soon as possible.
"We are back in storm preparation mode again, unfortunately," he said.
Guterres, who was in Abaco on Saturday, said earlier he hoped the weather would not impede his visit.
"In some areas, more than three-quarters of all buildings have been destroyed. Hospitals are either in ruins or overwhelmed. Schools turned into rubble," the UN secretary-general said in a prepared statement ahead of the visit.
He said thousands of people continue to need food, water and shelter, and UN humanitarian agencies are on the ground to help them.
"Our hearts go out to all the people of the Bahamas and the United Nations is right by their side," he said.
Guterres told reporters Dorian should be a wake-up call for the world about the dangers of climate change.
"If we don't reverse the situation we'll see tragedies like this one multiplying and becoming more and more intense, more frequent," Guterres said. "Climate change is running faster than what we are. We need to reverse this trend.
Dorian slammed into the Bahamas on September 1 as a Category 5 storm, one of the strongest Atlantic hurricanes ever to hit land, packing top sustained winds of 298 km per hour.
The death toll from Dorian is at least 50 but officials say hundreds of people are missing and that number is expected to rise. About 1,300 people are still unaccounted for.
Former Bahamian prime minister Hubert Ingraham said earlier this week he feared the final death toll could be in the hundreds.