Hurricane and tropical storm warnings are in effect for more than 42 million people in Florida, Georgia and Alabama, according to the National Weather Service. The storm is expected to make landfall somewhere in Florida’s Big Bend region on Thursday night.

After the storm makes landfall, it is expected to reach Georgia, where impacts from the storm will be significant across the state and in northern and central Georgia, the National Weather Service Office in Atlanta said.

Significant storm surges and coastal flooding are expected in the Peach State, with parts of Savannah likely to see flooding Thursday night into Friday. Northern and central Georgia could experience flash flooding, damaging winds leading to power outages and even short-lived tornadoes.