A National Weather Service forecaster in Wilmington, North Carolina, said: 'This will likely be the storm of a lifetime for portions of the Carolina coast. The storm has nothing to weaken it in it's path until it reaches landfall.
A spokesperson for The Weather Channel said: "The uncertainty in the forecast remains on Tuesday". Tropical storm watches are in effect for Montserrat, St. Kitts and Nevis, Antigua, and Saba and St. Eustatius.
Severe gales are expected in the United Kingdom, moving from the south west to the north west.
"According to the IPMA's forecast, it is likely that the western islands [Flores and Corvo] should begin to feel the effects of the storm from Saturday afternoon". Many areas in the low-lying city flood with routine rain storms, causing street closures and detours.
"It's been an ordeal but we're coming through this fairly well", Arakawa said at a news conference.
The Portuguese weather service said that wind gusts of up to 74 mph are possible by the weekend in the Azores, an island chain about 850 miles west of Portugal. The winds may increase a bit Saturday night, possibly gusting over 40mph, especially in the northern/eastern CSRA. Tropical-storm force winds extend outward to 105 miles from the center.
Tourists flee as cliff face falls on to holiday beach
The water hit his feet with such a strong force, it knocked him onto his back and went on to cover more than half the beach . O'Connell described the piece of rock that fell as being as big as a four-storey building, crashing down onto the beach .
At that time, Isaac will be a strong tropical storm with top winds of 60 miles per hour.
Forecasters say the center of Florence will move over the southwestern Atlantic Ocean between Bermuda and the Bahamas on Wednesday, and approach the coast of the Carolinas in the hurricane warning area on Thursday and Friday.
The National Hurricane Center is predicting the storm will produce "catastrophic flash flooding and significant river flooding".
The U.S. National Hurricane Center (NHC) provided the latest update on Hurricane Florence at 8 a.m. on September 12.
"Keep in mind it is going to continue to ride along the Carolina coast for the next several hours, even into tomorrow, possibly dumping rain between 20 and 40 inches", Bridges said.
Florence is now 485 miles from Wilmington, North Carolina.