Florence made landfall near Wrightsville Beach, N.C., the morning of Sept. 14 as a Category 1 hurricane.
Major storm surge and "heavy and excessive" rainfall are expected in the Carolinas as Florence moves very slowly along the coast, according to the 11 a.m. public advisory from the National Hurricane Center. Southeastern coastal North Carolina and northeastern South Carolina can expect an additional 20 to 25 inches of rain, with up to 40 inches in some areas, which will lead to "catastrophic" flash flooding and prolonged significant river flooding, the NHC said.
The rest of the Carolinas and southwest Virginia are expecting 5 to 10 inches of rain, with isolated amounts to 15 inches. Some locations in southeastern North Carolina have already received 14 inches of rain from Florence.
"Although coastal storm surge flooding will gradually subside later today, it cannot be emphasized enough that another serious hazard associated with slow-moving Florence is and will be extremely heavy rainfall," the National Hurricane Center said in the latest forecast discussion.