Frigid temperatures this weekend prompt cold weather advisories

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Hurricane Dorian has grown even more powerful, strengthening to a Category 5 storm as it approaches the Bahamas with what the National Hurricane Center warned would be "devastating winds" and a "life-threatening storm surge."

Maximum sustained winds for Dorian increased to 175 mph, with gusts above 200 mph, and further intensification is possible according to the NHC.

The eye of the storm is less than 20 miles from Abaco Island, and the hurricane is projected to stall over the Bahamas for up to 24 hours, bringing massive rain and a 20-foot storm surge posing catastrophic damage to the low-lying islands.

The storm's projected path shifted east on Saturday, increasing the likelihood that its landfall in the U.S. will be in Georgia and the Carolinas. And while Florida may now avoid a direct hit, the storm could still bring a dangerous storm surge and hurricane-force winds to the U.S. mainland.

On Saturday afternoon, Ken Graham, director of the NHC, said the storm is slowing down as it prepares to turn north.

"We have a movement of about 2 miles an hour during that turn. That's devastating for the Bahamas," Graham said. "When you're moving that slow, that's a lot of rain, that's a lot of prolonged winds. That is really devastating for some of the islands in the northern Bahamas."

As much as 64 inches of rain could fall over the northern Bahamas once Dorian reaches the archipelago, according to storm models.

Meteorologist Ryan Maue says that the current forecast for the Bahamas "is a disaster: feet of Rain, storm surge, and Cat 4 sustained winds."

The Bahamas' prime minister, Hubert Minnis, urged residents in the path of the storm to evacuate. Officials have opened nine hurricane shelters on Grand Bahama Island and 15 shelters on Abaco for people to stay in during the hurricane.

 on Saturday, the NHC wrote that the storm continues to track west as it approaches the Bahamas:


The National Weather Service says tropical force winds are expected to arrive in parts of south and central Florida as early as Sunday or Monday. The storm is then expected to affect Georgia and the Carolinas in the middle of the coming week.

Dorian is expected to bring between 4 and 8 inches of rain and, in some isolated areas, up to 12 inches of rain to the southeast United States, according to the NHC.

 a state of emergency to include each of the state's 67 counties, citing the storm's "uncertain path." President Trump has also granted DeSantis' request for an emergency declaration in Florida, authorizing the Federal Emergency Management Agency to provide equipment and resources to the state.


Despite the shift in the storm's projected path, DeSantis urged residents on Saturday to be prepared.

 has shifted, the entire East Coast is still vulnerable to significant impacts. Residents in East Coast counties should continue to monitor local reports and stay vigilant," DeSantis said 

North Carolina Gov. Roy Cooper declared a state of emergency on Friday. On Saturday, so too did South Carolina Gov. Henry McMaster.

"Given the strength and unpredictability of the storm, we must prepare for every possible scenario," said McMaster. "We encourage all South Carolinians who may be impacted by Hurricane Dorian to be vigilant and prepare now — there is no reason for delay."




Slow-moving storms like Dorian are getting more common as the Earth gets hotter. In the past 70 years, tropical cyclones around the world have slowed down 10%, according to a 

 published this year. Hurricane Florence, in 2018, and Hurricane Harvey, in 2017, were both slow-moving storms.
When storms move slowly, they have time to drop a lot of rain. Warm ocean water also exacerbates the risk of extreme downpours. After Hurricane Harvey hit Texas, 

 that record-high temperatures in the Gulf of Mexico sent enormous quantities of water vapor into the storm; that water vapor then fell as rain when the storm made landfall.
This year, the surface temperature of the water in the Atlantic Ocean, where Dorian formed, isn't record breaking, but the water is still 

. That means there's plenty of fuel for the storm to get large and wet.


Weather and Climate News

Shannon Van Sant

Author

No matter where it makes landfall, forecasters say the category 4 hurricane will bring life-threatening storm surge and hurricane-force winds to the southeast United States. 

Hurricane Dorian's path shifts toward Carolinas, could avoid direct hit on Florida

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