Cyclone the storm is predicted to strengthen into a uncommon Category 5 cyclone as it shifts toward Jamaica, bringing life-threatening rapid inundation and mudslides.
The cyclone, which recorded wind speeds of up to 120 mph as of 6:00 AM GMT, is presently veering northwest in the Caribbean and is expected to reach land by early next week, as reported by hurricane specialists.
Warnings of electricity outages and disruption to utilities have been released as the hurricane generates up to 76cm of rain and storm surges as high as 4m above normal levels. "Find safe refuge immediately," locals have been advised.
This hurricane is the 13th named cyclone in the current Atlantic storm period, which typically ends in the eleventh month.
A Category 5 storm is the strongest type, with sustained winds of at least 157 miles per hour.
Although Melissa is set to diminish in strength to a category four hurricane before arriving at Jamaica, experts said there was "very little practical difference in the total effects" upon reaching the coast, and that the storm will be "just as powerful" when it impacts the nation.
With storm-force wind and rainfall anticipated well in advance long before it passes over Jamaica's central region - including potentially the capital, Kingston - advisories indicate that "safety measures need to be finalized quickly".
"Several days of damaging winds and intense precipitation are underway and will cause catastrophic and life-threatening sudden floods and many rock slides," counseled climate experts.
The country's head of government the statesman stated: "I realize that there are many Jamaicans who are worried, who are extremely apprehensive, and with good reason: worry is natural.
"However the best way to handle nervousness and any nervousness and concern is to stay ready."
Locals are being instructed to protect their properties with sand barriers and plywood sheets, and to gather necessary supplies.
Warnings are also active for parts of Haiti encompassing the capital, Port au Prince, the adjacent nation and eastern Cuba, where the hurricane is anticipated to bring comparable impacts by the midweek period.
Landslides already being caused by the hurricane have already killed two in Haiti, according to local authorities.
Melissa is projected to cross the island nation by the middle of the week before moving through the Antillas Mayores and emerging into the Atlantic.
By the time it makes contact with Cuba, it is predicted to have diminished to a third-level cyclone.
Although it is difficult to associate individual weather events to environmental shifts, experts say it is resulting in weather phenomena more prevalent and more intense.
Warmer oceans produce more moisture in the environment, helping fuel the creation of hurricanes.
Prior to the commencement of the current Atlantic storm period, weather organizations projected higher-than-average occurrence, mentioning elevated ocean temperatures and potential more intense weather patterns around African coastal regions - where Atlantic storms often form.
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