Flooding and power outages expected in Puerto Rico as storm due to strengthen before heading for US mainland.

Dorian became a Category 1 hurricane on Wednesday as it struck the US Virgin Islands, with forecasters saying it could grow to Category 3 status as it nears the US mainland as early as the weekend.

The British Virgin Islands and the Puerto Rican islands of Vieques and Culebra were also in Dorian’s path with landslides, widespread flooding and power outages possible in the US territory, which faced its first major test of emergency preparedness since the 2017 devastation of Hurricane Maria.

“Dorian brings uncertainty, and, for those of us who experienced the storms of 2017, uncomfortable memories,” said British Virgin Islands Gov. Augustus Jaspert. “Take heart.”

Dorian prompted President Donald Trump to declare a state of emergency Tuesday night and ordered federal assistance for local authorities.

At 2pm local time (18:00 GMT), Dorian was located over St Thomas in the US Virgin Islands. The US National Hurricane Center said it had maximum sustained winds of 75 mph (120 km/h) while moving northwest at 13 mph (20 km/h).

The Hurricane Center said the storm could grow into a dangerous Category 3 storm as it pushes northwest in the general direction of Florida.

Dennis Feltgen, a National Hurricane Center meteorologist in Miami, said Dorian may grow in size and could land anywhere from South Florida to South Carolina on Sunday or Monday.

“This will be a large storm approaching the Southeast,” he said.

Flooding feared in Puerto Rico

A hurricane tropical storm warning was in effect for Puerto Rico, with Dorian expected to dump 100 to 150 millimetres (4 to 6 inches) of rain with isolated amounts of 200 millimetres (8 inches).

It is a forecast that worries many in Puerto Rico because blue tarps still cover some 30,000 homes nearly two years after Hurricane Maria. The island’s 3.2 million inhabitants also depend on an unstable power grid that remains prone to outages since it was destroyed by Maria, a Category 4 storm.

Ramonita Torres, 74, lives by herself in the impoverished, flood-prone neighbourhood of Las Monjas in the capital of San Juan. She was still trying to rebuild the home she nearly lost after Maria but was not able to secure the pieces of zinc that now serve as her roof.

“There’s no money for that,” she said, shaking her head.

A couple boards up the door of their beachfront house as Tropical Storm Dorian approaches in Yabucoa, Puerto Rico [Ricardo Arduengo/Reuters]

A reported 23,000 customers were without power across Puerto Rico by early Wednesday afternoon, according to Angel Figueroa, president of a union that represents power workers.

Police said an 80-year-old man in the northern town of Bayamon died on Wednesday after he fell trying to climb up to his roof to clear it of debris in advance of the storm.

In the US Virgin Islands, which is still struggling to recover from hurricanes Irma and Maria, officials were reporting power outages and light rain by midday.

“Winds have picked up significantly. We’re starting to get some of those heavier gusts,” the governor’s spokesman, Richard Motta, said in a telephone interview.

Dorian earlier had been projected to brush the western part of the US territory and the change in the storm’s course caught many off-guard in the tiny island of Vieques just east of Puerto Rico, a popular tourist destination that now lies in Dorian’s path.

“I’m in shock,” Vilma Santana said.

A person is seen along the beach as the storm passes the island on August 28, 2019, in Luquillo, Puerto Rico [Joe Raedle/Getty Images/AFP]

Trump sent a tweet assuring that “We are tracking closely tropical storm Dorian as it heads, as usual, to Puerto Rico. FEMA and all others are ready, and will do a great job.”

He added a jab at Puerto Rican officials who have accused the government of a slow and inadequate response to Hurricane Maria: “When they do, let them know it, and give them a big Thank You – Not like last time. That includes from the incompetent Mayor of San Juan!”

The mayor, Carmen Yulin Cruz, tweeted that Trump needs to “calm down get out of the way and make way for those of us who are actually doing the work on the ground,” adding that maybe he “will understand this time around THIS IS NOT ABOUT HIM; THIS IS NOT ABOUT POLITICS; THIS IS ABOUT SAVING LIVES.”

‘We’re going to be much better prepared’

Dorian earlier caused power outages and downed trees in Barbados and St Lucia.

Although top government officials in Puerto Rico said they were prepared for the storm and had sufficient equipment, a couple of mayors, including those in the western region, said they did not have enough generators or shelters that were properly set up.

190720154224817

Jose Ortiz, executive director of Puerto Rico’s Electric Power Authority, acknowledged that the distribution system still has weak areas and could “suffer” under winds of 80 to 100 km/h. However, he stressed the agency has the needed inventory, including more than 120,000 lights, 23,000 poles and 7,400 transformers.

But Freddyson Martínez, vice president of a power workers’ union, told The Associated Press that while the electric grid has improved in some areas, he worries about a lack of power line workers and post-Maria fixes that include lines affixed to palm trees.

The island’s transportation secretary acknowledged that crews are still rebuilding roads damaged or blocked by Maria, including more than 1,000 that remain blocked by that storm’s landslides.

Puerto Rico Governor Wanda Vazquez urged those living in flood-prone areas or under a blue tarp to move into one of the island’s 360 shelters.

Officials also said public schools and government offices would remain closed through at least Thursday.

“We learned our lesson quite well after Maria,” Vazquez said. “We are going to be much better prepared.”

In the US Virgin Islands, Gov. Albert Bryan Jr closed schools and government offices and said he would implement a curfew until Thursday, adding that officials have opened shelters and prepared sandbags in all three islands.

180828180503582

“The main threat in this storm is the water,” he said in a conference call early Wednesday. “We still have a lot of vulnerable people in the territory.”

Meanwhile, Tropical Storm Erin formed well off the US East Coast on Tuesday night, and the National Hurricane Service said the storm was forecast to move northward over the open Atlantic with no immediate threat to land.

It was about 470 miles (760 kilometres) west-northwest of Bermuda and 190 miles (305 kilometres) southeast of Cape Hatteras, North Carolina, with maximum sustained winds of 35 mph (55 km/h).