Meanwhile, the two other tropical storms in the Atlantic - Florence and Helen - are expected to become hurricanes today.
WRAL meteorologist Elizabeth Gardner said Florence is expected to become a major hurricane with winds of 120 miles per hour by Tuesday and will likely strengthen into a Category 4 storm, with winds of 150 miles per hour, by the time it reaches the coast on Thursday.
As Hurricane Florence gets closer to North Carolina, Raleigh residents spent their Sunday afternoon stocking up on supplies.
There are no coastal watches or warnings in effect at this time, but Met Service said strengthening is forecast during the next few days and Isaac is expected to become a hurricane by Monday. The National Hurricane Center says it's still too early to predict the storm's exact path.
As of 5 p.m. EDT, Florence was centred about 720 miles (1,160 kilometres) southeast of Bermuda, moving west at 7 mph (11 kmh).
While there's been remarkable agreement with the latest forecast models on Florence's track, the "cone of uncertainty" still stretches as far south as Georgia, and as for north as Virginia.
Forecasters urged residents from SC to the mid-Atlantic to get ready - and not just for a possible direct blow against the coast. The hurricane could make landfall possibly as a Category 3 or higher on the five-step Saffir-Simpson scale.
England have the ability to win the UEFA Nations League - Kane
Harry Kane has revealed he will wear a pair of golden boots in England's Nations League opener against Spain on Saturday. What time is England vs Spain? France's Alphonse Areola and Lucas Hernandez in action with Germany's Ilkay Gundogan.
Red flags flying on beaches warned swimmers to stay out of waters already roiled by the distant storm, and cruise ships and Navy vessels were set to be steered out of harm's way. People rushed to get emergency kits ready, map out escape routes and fill sandbags and secure their homes.
Florence is actually the lone major hurricane of the season so far as it was initially a category 4 hurricane in the open Atlantic before weakening and now restrengthening again. The state's emergency management agency said it's "preparing for the possibility of a large-scale disaster".
Cooper said the decision to put evacuation orders in place will be left up to local officials, who best know their communities and residents, but predicted that evacuation orders will likely be issued along the coast in the coming days.
Myrtle Beach hardware stores and supermarkets were busy ringing up sales of bottled water, plywood and generators. "They're coming in and buying water and plates, and that's about all they're buying". "We're ready here in North Carolina, our emergency responders are on the ready and we want residents to be ready as well".
As Hurricane Florence approaches the East Coast, the University of North Carolina at Wilmington canceled classes and encouraged its students to leave campus for a safer location.
Carnival Horizon which is the newest Carnival Cruise Ship has now canceled its scheduled port of call in Puerto Rico due to Florence which is now a category 1 Hurricane.