Tropical Storm Melissa is predicted to escalate to a infrequent category five cyclone as it shifts toward Jamaica, causing life-threatening flash flooding and mudslides.
The cyclone, which had winds of up to 120 mph as of 06:00 GMT, is presently veering north-west in the Caribbean region and is anticipated to reach land by midweek, as reported by hurricane specialists.
Advisories of electricity outages and disruption to utilities have been released as Melissa produces up to 76cm of rainfall and sea level surges as high as 4m above typical tides. "Find safe refuge immediately," residents have been advised.
This hurricane is the 13th cyclone in the ongoing Atlantic storm period, which typically ends in late autumn.
A Category 5 storm is the most powerful category, with winds of at least 252 km/h.
Although the hurricane is set to reduce in intensity to a category four storm before reaching the island, experts said there was "very little practical difference in the overall impacts" upon making contact with land, and that the hurricane will be "at least that intensity" when it impacts the island.
With tropical storm-strength gusts and precipitation predicted to begin ahead of it passes over Jamaica's central region - perhaps encompassing the national capital - advisories state that "safety measures need to be finalized quickly".
"Several days of harmful winds and torrential rain are underway and will cause severe and deadly sudden floods and multiple rock slides," urged meteorological officials.
The country's head of government the statesman stated: "I realize that there are numerous residents who are worried, who are very concerned, and with good reason: worry is natural.
"However the best way to address worry and any unease and concern is to remain prepared."
Inhabitants are being advised to protect their properties with protective bags and timber panels, and to accumulate essentials.
Warnings are also in effect for areas in the neighboring country including the main city, Port au Prince, the Dominican Republic and Cuba's eastern region, where this storm is anticipated to bring comparable impacts by the middle portion of the coming week.
Mudslides presently generated by the cyclone have caused two deaths in Haiti, according to the nation's Civil Protection agency.
Melissa is projected to move across Cuba by the middle of the week before traveling via the Caribbean archipelago and emerging into the open ocean.
By the point it arrives at the Caribbean nation, it is anticipated to have reduced to a category three storm.
Although it is challenging to associate particular meteorological occurrences to environmental shifts, researchers say it is causing climate patterns more prevalent and more intense.
Warmer oceans create additional humidity in the air, aiding in the development of storms.
Before the commencement of this year's Atlantic storm period, climate agencies forecast above-normal activity, referencing warmer seas and possible more intense weather patterns around West Africa - where tropical systems often form.
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