Tropical Storm the storm is forecast to strengthen into a uncommon category five storm as it veers towards the Caribbean island, bringing life-threatening rapid inundation and mudslides.
The cyclone, which recorded winds of up to 195 km/h as of 6:00 AM GMT, is now shifting northwest in the Caribbean Sea and is expected to make landfall by midweek, based on data from weather experts.
Alerts of blackouts and structural damage have been announced as Melissa generates up to thirty inches of rainfall and sea level surges as high as 13ft above normal levels. "Find safe refuge immediately," locals have been told.
Melissa is the 13th storm in this year's Atlantic hurricane season, which typically ends in the eleventh month.
A Category 5 cyclone is the most powerful category, with sustained winds of at least 157 miles per hour.
While the hurricane is projected to weaken to a Category 4 hurricane before making landfall on Jamaica, meteorologists said there was "almost no noticeable change in the total effects" upon making contact with land, and that the storm will be "just as powerful" when it impacts the nation.
With tropical storm-strength winds and rain already expected long before it moves across the island's interior - perhaps encompassing the national capital - warnings emphasize that "readiness efforts must be accelerated".
"Several days of damaging winds and torrential rain are underway and will cause devastating and dangerous rapid water accumulation and multiple rock slides," urged climate experts.
The country's head of government the statesman said: "I realize that there are countless citizens who are anxious, who are very concerned, and with good reason: concern is justified.
"But the optimal approach to manage worry and any unease and concern is to stay ready."
Locals are being advised to secure their homes with sandbags and plywood sheets, and to stock up on essentials.
Alerts are also active for regions of Haiti encompassing the primary urban center, the Dominican Republic and eastern Cuba, where this storm is expected to bring analogous consequences by the midweek period.
Mudslides already being caused by the cyclone have resulted in two fatalities in the country, according to the nation's Civil Protection agency.
Melissa is forecast to cross the island nation by Wednesday before moving through the Antillas Mayores and entering the Atlantic.
By the moment it makes contact with the Caribbean nation, it is predicted to have reduced to a category three storm.
Even though it is difficult to associate specific storms to environmental shifts, scientists say it is causing meteorological events more common and more extreme.
Warmer oceans produce greater water vapor in the atmosphere, contributing to the formation of hurricanes.
Prior to the beginning of the current Caribbean cyclone season, weather organizations forecast above-normal activity, referencing elevated ocean temperatures and potential stronger monsoon activity around the western African continent - where Atlantic storms often form.
A software engineer and tech writer passionate about AI ethics and open-source projects, with over a decade of industry experience.