Tropical Storm the storm is predicted to escalate to a uncommon highest-level cyclone as it veers in the direction of the Caribbean island, causing deadly flash flooding and landslides.
The cyclone, which registered winds of up to 120 miles per hour as of 06:00 GMT, is presently veering northwest in the Caribbean region and is expected to reach land by early next week, based on data from weather experts.
Warnings of electricity outages and disruption to utilities have been announced as this storm produces up to 76cm of precipitation and coastal flooding as high as 4m above ground. "Find safe refuge immediately," residents have been told.
The cyclone is the thirteenth cyclone in this year's Atlantic season, which usually concludes in November.
A highest-level cyclone is the most powerful category, with sustained winds of at least 157 miles per hour.
Although this storm is set to reduce in intensity to a fourth-level hurricane before reaching Jamaica, meteorologists said there was "almost no noticeable change in the general consequences" upon landfall, and that the cyclone will be "just as powerful" when it strikes the country.
With tropical storm-level winds and rain anticipated well in advance well before it crosses central Jamaica - perhaps encompassing the national capital - alerts emphasize that "safety measures need to be finalized quickly".
"Several days of destructive gusts and intense precipitation are underway and will cause devastating and dangerous flash flooding and multiple mudslides," counseled climate experts.
The nation's leader the official stated: "I know that there are countless citizens who are concerned, who are deeply troubled, and with good reason: concern is justified.
"However the most effective method to address anxiety and any unease and anxiety is to be prepared."
Inhabitants are being told to fortify their houses with sand barriers and wooden boards, and to stock up on necessary supplies.
Alerts are also in effect for areas in the neighboring country encompassing the primary urban center, the Dominican Republic and eastern Cuba, where this storm is projected to bring similar effects by the midweek period.
Rock slides already being caused by the hurricane have caused two deaths in the country, according to the nation's Civil Protection agency.
Melissa is forecast to pass over the island nation by midweek before passing across the Greater Antilles and emerging into the open ocean.
By the point it arrives at Cuba, it is predicted to have diminished to a Category 3 hurricane.
While it is difficult to associate particular meteorological occurrences to climate change, researchers say it is resulting in weather phenomena more prevalent and more severe.
Increased sea temperatures create additional humidity in the air, helping fuel the formation of hurricanes.
Ahead of the beginning of this season's Atlantic hurricane season, weather organizations projected above-normal activity, citing warmer seas and likely stronger monsoon activity around the western African continent - where Atlantic storms often form.
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