Cyclone the storm is predicted to become a rare Category 5 cyclone as it veers towards the Caribbean island, bringing life-threatening flash flooding and mudslides.
The cyclone, which recorded winds of up to 120 mph as of 0600 Greenwich Mean Time, is now shifting toward the northwest in the Caribbean region and is expected to reach land by midweek, based on data from weather experts.
Alerts of blackouts and structural damage have been issued as Melissa brings up to 30 inches of rain and storm surges as high as thirteen feet above normal levels. "Seek shelter now," inhabitants have been urged.
This hurricane is the 13th named storm in the ongoing Atlantic hurricane season, which usually concludes in November.
A category five hurricane is the strongest type, with winds of at least 157 miles per hour.
While Melissa is expected to reduce in intensity to a fourth-level storm before arriving at the island, authorities said there was "almost no noticeable change in the general consequences" upon making contact with land, and that the hurricane will be "just as powerful" when it hits the island.
With storm-force wind and rainfall predicted to begin ahead of it crosses the island's interior - possibly even the national capital - advisories emphasize that "readiness efforts must be accelerated".
"A multi-day period of destructive gusts and intense precipitation have begun and will cause severe and deadly sudden floods and many rock slides," advised weather authorities.
The nation's leader the statesman stated: "I understand that there are many Jamaicans who are concerned, who are deeply troubled, and appropriately: concern is justified.
"However the most effective method to address anxiety and any apprehension and anxiety is to stay ready."
Inhabitants are being advised to fortify their houses with sandbags and timber panels, and to gather necessary supplies.
Advisories are also active for regions of the neighboring country including the main city, Port au Prince, the Dominican Republic and eastern Cuba, where this storm is projected to bring similar effects by the midweek period.
Rock slides presently generated by the hurricane have resulted in two fatalities in Haiti, according to emergency services.
This weather system is forecast to move across Cuba by Wednesday before traveling via the Caribbean archipelago and entering the Atlantic.
By the point it arrives at the Caribbean nation, it is anticipated to have weakened to a third-level cyclone.
Even though it is challenging to connect particular meteorological occurrences to climate change, experts say it is making meteorological events increasingly frequent and more severe.
Higher ocean heat generate more moisture in the environment, contributing to the creation of storms.
Before the commencement of the current Atlantic hurricane season, climate agencies projected above-normal activity, referencing heated marine conditions and potential stronger monsoon activity around African coastal regions - where hurricanes often form.
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