Hurricane the storm is predicted to strengthen into a uncommon Category 5 hurricane as it shifts toward the Caribbean island, causing life-threatening sudden floods and landslides.
The cyclone, which had winds of up to 120 mph as of 0600 Greenwich Mean Time, is currently turning toward the northwest in the Caribbean Sea and is expected to hit the coast by Tuesday, based on data from meteorological authorities.
Warnings of electricity outages and structural damage have been released as the hurricane generates up to 30 inches of rain and sea level surges as high as thirteen feet above ground. "Seek shelter now," locals have been told.
This hurricane is the 13th storm in the ongoing Atlantic storm period, which typically ends in late autumn.
A highest-level cyclone is the strongest type, with sustained winds of at least 157mph.
Even though this storm is projected to weaken to a category four cyclone before arriving at Jamaica, experts said there was "very little practical difference in the overall impacts" upon reaching the coast, and that the cyclone will be "at least that intensity" when it strikes the country.
With tropical storm-level wind and rainfall anticipated well in advance ahead of it passes over central Jamaica - perhaps encompassing the national capital - alerts state that "safety measures need to be finalized quickly".
"An extended timeframe of damaging winds and heavy rainfall have begun and will cause severe and deadly flash flooding and multiple landslides," counseled meteorological officials.
The nation's leader Andrew Holness stated: "I realize that there are countless citizens who are concerned, who are very concerned, and appropriately: concern is justified.
"Yet the optimal approach to address worry and any apprehension and worry is to stay ready."
Residents are being told to fortify their houses with sandbags and timber panels, and to accumulate essentials.
Advisories are also ongoing for regions of the neighboring country encompassing the capital, Port au Prince, the neighboring country and eastern Cuba, where the hurricane is projected to bring similar effects by the midweek period.
Mudslides currently triggered by the cyclone have already killed two in the country, according to local authorities.
Melissa is predicted to move across the island nation by the middle of the week before moving through the Caribbean archipelago and emerging into the Atlantic Ocean.
By the point it reaches the Caribbean nation, it is forecast to have reduced to a Category 3 hurricane.
Although it is hard to connect specific storms to environmental shifts, scientists say it is resulting in weather phenomena more common and more intense.
Increased sea temperatures produce more moisture in the environment, contributing to the development of tropical cyclones.
Prior to the commencement of this season's Atlantic storm period, weather organizations projected increased storm frequency, mentioning heated marine conditions and possible more intense weather patterns around the western African continent - where Atlantic storms typically originate.
Eleanor Hayes is a data scientist and business analyst with over a decade of experience in transforming raw data into actionable insights.