Florence is expected to produce rainfall totals of 10 to 20 inches (25 to 51 centimeters), with isolated amounts of up to 30 inches (76 centimeters). These rainfall amounts are unprecedented for the Carolinas and could cause catastrophic flooding.

2. Slow-moving storm

Florence is expected to move slowly over the Carolinas, which will allow it to dump more rain over a longer period of time. This will increase the risk of flooding and landslides.

3. Large hurricane

Florence is a large hurricane, with hurricane-force winds extending out 80 miles (130 kilometers) from its center. This means that even coastal areas that are not directly hit by Hurricane Florence eye could still experience dangerous winds and storm surge.

4. High storm surge

Florence is expected to produce a storm surge of up to 13 feet (4 meters) along the North Carolina coast. This could cause extensive flooding and damage to coastal communities.

5. Dangerous surf and rip currents

Florence is also expected to produce large waves and rip currents, which could be life-threatening for swimmers and surfers.

In addition to these specific threats, Hurricane Florence could also disrupt power and communications, making it difficult for people to stay safe and informed. It could also cause road closures and evacuations, which could make it difficult for people to get out of harm's way.