Weather and Natural Disasters

'Extremely dangerous' Hurricane Irma barrels toward Virgin Islands, Puerto Rico

Florida, Puerto Rico declare state of emergency ahead of Hurricane Irma
Florida, Puerto Rico declare state of emergency ahead of Hurricane Irma

Hurricane Irma strengthened into a highly dangerous Category 5 storm on Tuesday as it barreled toward the Caribbean and the southern United States, threatening deadly winds, storm surges and flooding as Texas and Louisiana was still reeling from devastating Hurricane Harvey.

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Hurricane warnings were in effect for much of the Leeward Islands, the British and U.S. Virgin Islands and Puerto Rico ahead of the storm packed maximum sustained winds of nearly 185 miles per hour, with higher gusts, on Tuesday, the U.S. National Hurricane Center (NHC) said.

Monroe County, Florida, home to the Florida Keys, on Tuesday issued mandatory evacuation orders for tourists and residents alike, warning that no safe shelter would be available on the islands.

"All visitors, tourists and non-residents are hereby urged to seek safe shelter in mainland Florida," according to the Monroe County's warning.

Visitors must start evacuating by 7 a.m., ET, on Wed., Sept. 6; residents were told to start leaving by 7 p.m. on the same day.

"If ever there was a storm to take seriously in the Keys, this is it," Monroe County Emergency Management Director Martin Senterfitt said, in the note. "The sooner people leave, the better."

Irma marked a serious milestone Tuesday, becoming the strongest hurricane in the Atlantic basin outside of the Caribbean Sea & Gulf of Mexico in NHC records.

NHC tweet

"Irma becomes an extremely dangerous Category 5 hurricane," the NHC said on Tuesday, adding that it could gain even more strength. "Preparations should be rushed to completion in the hurricane warning area."

Puerto Rican Gov. Ricardo Rossello, who has declared a state of emergency and activated the National Guard, urged the economically struggling U.S. territory's 3.4 million residents to prepare for the potentially devastating storm.

"There is no positive sign that it's going to go in another direction. We're expecting that it's coming at Puerto Rico with force, and we've got to be ready for it," he said at a news conference.

Irma was about 130 miles east of the island of Antigua and moving west at about 15 mph, the NHC said.

Lisa Ferguson, the owner of the Esperanza Inn on the Puerto Rican island of Vieques, said her 15 guests left on Sunday and that staff put up hurricane shutters for the storm's expected passage to the north on Wednesday.

But there no signs of a looming hurricane on Tuesday, with clear skies, a fresh breeze and singing birds, she said.

"It's kind of ominous, knowing that it's out there. But it's perfect," Ferguson said by telephone. "We're bunkering down."

Hurricane Irma, a category 4 hurricane with maximum sustained winds near 150 mph (240 km/h) with higher gusts, is shown in this GOES satellite image in the Atlantic Ocean east of the Leeward Islands and Puerto Rico and the Dominican Republic, September 5, 2017.
Source: U.S. Navy photo | Reuters

Telemundo TV station WIPR in Puerto Rico showed long lines of shoppers stocking up on bottled water, flashlights, batteries, generators, food and other items.

Irma also threatened the U.S. East Coast, especially Florida, which was under a state of emergency. The hurricane center expects Irma to reach southern Florida on Saturday.

Florida Gov. Rick Scott said on Twitter late Monday he had spoken to President Donald Trump, who "offered the full resources of the federal government as Floridians prepare for Hurricane Irma."

The NHC cautioned it was too early to forecast the storm's exact path or what effects it might have on the continental United States, but warned of likely effects on some areas this weekend.

Irma would be the second powerful hurricane to thrash the United States and its territories in as many weeks.

Residents of Texas and Louisiana are still reeling from the catastrophic effects of Hurricane Harvey, which struck Texas as a Category 4 hurricane on Aug. 25 and dumped several feet of rain, destroying thousands of homes and businesses. Harvey has killed an estimated 50 people and displaced more than 1 million others.

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WATCH: Here's what Houston looked like before and after Hurricane Harvey hit

Here's what Houston looked like before and after Hurricane Harvey hit
Here's what Houston looked like before and after Hurricane Harvey hit