Behind Florence in the Atlantic Ocean are Tropical Storm Isaac and Hurricane Helene. Accuweather forecasts Isaac will hit the Caribbean—including St. Lucia and Antigua—September 13 and 14. 

Hurricane Florence, a Category 4 storm (out of 5) with 130 mph winds, is expected to strengthen and be "the most powerful storm to hit (North and South Carolina) in three decades," according to CNN.

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

Virginia’s governor has ordered a mandatory evacuation for some residents of low-lying coastal areas as Hurricane Florence approaches the East Coast.

Tropical Storm Florence got a little stronger on Monday morning as it continued to track westward in the central Atlantic.

NHC is advising residents in the Florida Keys and the southern Florida peninsula to follow updates on the weather system.