Tropical storm Flossie will sweep across Hawaii, while Dorian in the Atlantic heads towards the Caribbean and Florida.

Residents and tourists across Hawaii are bracing for heavy rains and strong winds from Tropical Storm Flossie, which will hit the Big Island and Maui the hardest, National Weather Service officials said.

Winds are expected to be as strong as 60 mph, with the possibility of flooding from waves up to 18 feet high, USA Today reports.

Flossie could also bring mudslides, tornadoes and waterspouts, the forecasters said.

The National Weather Service issued a tropical storm warning for Oahu on Sunday, as well as for the Big Island, Maui, Molokai and Lanai. The warning means the storm represents a threat to life and property, USA Today reports. Eight emergency shelters have opened.

Average rainfall throughout the Big Island and Maui is expected to range from 6 to 10 inches, while some areas may see as much as 15 inches, US News reports. The steady rainfall could cause "life-threatening flash floods and mud slides," the National Weather Service reported.

Michael Cantin, a warning coordination meteorologist with the National Weather Service in Honolulu, said wind gusts will likely be strong enough to knock down power lines and blow away loose objects. He said people should be careful when trying to walk or drive across water if floods occur.

Meanwhile, Tropical Storm Dorian in the Atlantic may resurface as a new storm in the next two days, according to US News.  The rainstorm is heading westward through the Caribbean, according to AccuWeather, and may cause big rain showers and thunderstorms across South Florida, including Miami, Key West, and Fort Lauderdale, from Wednesday night to Thursday.