Hurricane Helene turns northwestward, not a threat to land

Three storms churned in the Atlantic Ocean on Sept. 8 2018.               National Hurricane Center

Three storms churned in the Atlantic Ocean on Sept. 8 2018. National Hurricane Center

Hurricane Florence has slightly increased in speed as it heads toward the U.S. East Coast.

Meanwhile, Hurricane Florence was 580 miles south, south east of Bermuda with winds of 115 mph and strengthening into a major storm.

All eyes are on Hurricane Florence and its path toward the Carolinas, but other hurricanes and tropical storms are brewing as well.

Hurricane Florence's forecasted track at 5 a.m. Monday, Sept. 10, 2018.

That was the nation's most expensive hurricane, although that record fell three years later when Hurricane Andrew struck South Florida. Drawing energy from the warm water, the now Category 2 storm could be a fearsome Category 4 with winds of 130 miles per hour or more by Tuesday.

TRACKING FLORENCE: Stay with The Weather Network online and on T.V. for our exclusive coverage of the storm.

By Monday morning, it was just outside of the Category 3 storm's predicted path, known as the "cone of uncertainty".

"The bottom line is that there is increasing confidence that Florence will be a large and extremely unsafe hurricane, regardless of its exact intensity", Blake said.

The storm is still days away from landfall, and the forecast track will probably change at least a little. He said the city's emergency operations center will be partially activated Wednesday and fully activated on Thursday.

Hogan says the declaration of emergency is a planning measure to ensure all necessary resources are mobilized in areas of the state with greatest potential need.

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The hurricane center said the storm is expected to strengthen and speed up as it approaches the Carolina coast in the coming days.

Hurricane Hazel was the last storm to ravage North Carolina and other mid-eastern coast States.

(CBSMiami) - A number of hurricane and tropical storm watches have been issued for Tropical Storm Isaac.

The NHC said there is "an increasing risk of life-threatening impacts for Florence", citing "storm surge at the coast, freshwater flooding from a prolonged and exceptionally heavy rainfall event inland and damaging hurricane force winds". The hurricane center announced the change in an update, citing data from a NOAA Hurricane Hunter aircraft that showed Florence was rapidly intensifying, with maximum sustained winds near 130 miles per hour. "Whether it is a tropical storm, a tropical storm watch, or a hurricane watch or a hurricane warning, we must treat all of them the same way".

The US military said it was sending an advance team to Raleigh, North Carolina, to coordinate with state and local authorities.

We have seen this unfold before, when out of a very quiet hurricane season develops a rapidly intensifying hurricane that barrels toward the mid-Atlantic U.S. east coast.

Tropical storm force winds extend 80 miles from the center.

A warm ocean is the fuel that powers hurricanes, and Florence will be moving over waters where temperatures are peaking near 85 degrees (30 Celsius), hurricane specialist Eric Blake wrote. "Weakening is forecast to begin by the middle of the week as Isaac approaches the Lesser Antilles".

The U.S. Navy is also taking precautions, with the U.S. Fleet Forces Command ordering almost 30 ships in the Hampton Roads area of the Virginia coast to head out to sea to avoid the storm.

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