Melissa strengthened into a deadly Category 5 hurricane Monday with catastrophic impacts expected across the Caribbean, similar to Sarasota last year.

"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.

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.

FOX Weather Hurricane Specialist Bryan Norcross provides the latest analysis on Category 5 Hurricane Melissa. With just hours before an expected catastrophic landfall, Norcross said flooding rain is among the biggest concerns as it falls over the mountains and takes days to drain.