Celebrity Beyond’s Oct. 26 itinerary will visit the Western Caribbean rather than the Eastern Caribbean, according to the cruise line’s parent company, Royal Caribbean Group. The ship will visit Costa Maya in Mexico, Belize and Roatan, Honduras.

Hurricane Melissa is set to bring catastrophic winds, flooding and storm surge to Jamaica, forecasters have warned.

Jamaica is expected to be in the storm's eyewall, which refers to the band of dense clouds surrounding the eye of the hurricane. The eyewall generally produces the fiercest winds and heaviest rainfall, according to Deanna Hence, a professor of climate, meteorology and atmospheric sciences at the University of Illinois Urbana-Champaign.

Historic, life-threatening flash flooding and landslides are expected in portions of Jamaica, southern Haiti and the Dominican Republic through the weekend, the NHC said. Peak storm surge heights could reach 9 to 13 feet above normal tide levels when the storm makes landfall, accompanied by large and powerfully destructive waves.

"It is more than kind of distressing because you don't know when and you don't know how," said Ewan Simpson, who lives in Jamaica.

"Catastrophic winds in the eyewall have the potential to cause total structural failure especially in higher elevation areas tonight and early Tuesday."

Melissa has already killed three people in Haiti and Jamaica each and one person in the Dominican Republic. United Nations staff are preparing to deploy to Cuba and Jamaica this week as the region nervously awaits landfall of Hurricane Melissa.