Melissa is not expected to make landfall in Florida or the U.S. The powerful storm is expected to make landfall on the island nation of Jamaica Tuesday morning. At 8 p.m., Melissa has maximum sustained winds of 175 mph and gusts of well over 200 mph. Melissa is a dangerously powerful Category 5 hurricane.

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

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.

The National Hurricane Center warns that Hurricane Melissa poses a threat of catastrophic flash flooding and landslides in Jamaica, Cuba and Hispaniola

The USS Nimitz is returning to its home port in Naval Base Kitsap in Washington state after having been deployed to the Middle East for most of the summer as part of the U.S. response to attacks by Yemen’s Houthi rebels on commercial shipping. The carrier is on its final deployment before decommissioning.

"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.

The two categories combined make up about 17 percent of all hurricanes in recorded history. Those reaching Category 5 — like Melissa — historically make up more like 4 percent of hurricanes. And fewer than half of the strongest two categories of hurricanes go on to hit land at such intensity.