Hurricane the storm is projected to escalate to a uncommon highest-level storm as it shifts toward the Caribbean island, causing dangerous flash flooding and mudslides.
The cyclone, which had wind speeds of up to 120 miles per hour as of 0600 Greenwich Mean Time, is now shifting north-west in the Caribbean region and is projected to reach land by midweek, based on data from meteorological authorities.
Advisories of blackouts and disruption to utilities have been announced as the hurricane brings up to 76cm of rain and coastal flooding as high as 4m above normal levels. "Seek shelter now," residents have been told.
The cyclone is the 13th named storm in the current Atlantic hurricane season, which usually concludes in the eleventh month.
A highest-level cyclone is the most intense classification, with winds of at least 252 km/h.
Even though the hurricane is expected to diminish in strength to a fourth-level storm before making landfall on Jamaica, authorities said there was "almost no noticeable change in the general consequences" upon reaching the coast, and that the cyclone will be "equally strong" when it hits the country.
With tropical storm-level winds and rain already expected well before it moves across central Jamaica - possibly even the city of Kingston - warnings indicate that "safety measures need to be finalized quickly".
"An extended timeframe of damaging winds and intense precipitation are underway and will cause devastating and dangerous sudden floods and numerous mudslides," urged climate experts.
The nation's leader the official said: "I realize that there are many Jamaicans who are anxious, who are very concerned, and appropriately: worry is natural.
"Yet the best way to manage anxiety and any nervousness and concern is to be prepared."
Inhabitants are being told to protect their properties with sandbags and plywood sheets, and to stock up on necessary supplies.
Warnings are also ongoing for areas in Haiti including the primary urban center, the neighboring country and eastern Cuba, where the hurricane is anticipated to bring comparable impacts by the middle portion of the coming week.
Landslides currently triggered by the hurricane have caused two deaths in Haiti, according to emergency services.
The hurricane is projected to cross Cuba by the middle of the week before passing across the Greater Antilles and entering the Atlantic Ocean.
By the time it reaches the Caribbean nation, it is forecast to have weakened to a third-level cyclone.
While it is hard to connect particular meteorological occurrences to climate change, experts say it is resulting in climate patterns increasingly frequent and more extreme.
Increased sea temperatures produce additional humidity in the atmosphere, aiding in the development of storms.
Ahead of the beginning of this year's Caribbean cyclone season, meteorological authorities forecast above-normal activity, referencing warmer seas and possible more intense weather patterns around African coastal regions - where tropical systems typically originate.
Tech enthusiast and lifestyle writer with a passion for uncovering the latest innovations and sharing practical advice for modern living.