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Cyclone Melissa is predicted to strengthen into a rare highest-level cyclone as it veers in the direction of the Caribbean island, causing deadly sudden floods and rock falls.

This weather system, which had winds of up to 120 mph as of 6:00 AM GMT, is now shifting toward the northwest in the Caribbean and is projected to hit the coast by Tuesday, as reported by meteorological authorities.

Advisories of power cuts and disruption to utilities have been announced as Melissa generates up to 76cm of precipitation and sea level surges as high as 13ft above ground. "Find safe refuge immediately," residents have been advised.

This hurricane is the thirteenth storm in the current Atlantic storm period, which typically ends in late autumn.

Most Intense Cyclone Threat

A category five storm is the strongest type, with sustained winds of at least 252 km/h.

While this storm is expected to diminish in strength to a Category 4 storm before making landfall on Jamaica, authorities said there was "very little practical difference in the total effects" upon making contact with land, and that the storm will be "just as powerful" when it impacts the island.

Urgent Readiness Measures

With storm-force gusts and precipitation already expected well before it moves across central Jamaica - perhaps encompassing the capital, Kingston - alerts emphasize that "preparations should be rushed to completion".

"An extended timeframe of damaging winds and heavy rainfall have begun and will cause devastating and dangerous flash flooding and many landslides," advised meteorological officials.

The nation's leader the statesman commented: "I understand that there are numerous residents who are concerned, who are extremely apprehensive, and with good reason: you should be concerned.

"However the most effective method to manage anxiety and any apprehension and anxiety is to stay ready."

Locals are being instructed to secure their homes with sand barriers and wooden boards, and to stock up on essentials.

Broader Impact

Warnings are also active for areas in Haiti encompassing the capital, Port au Prince, the adjacent nation and eastern Cuba, where this storm is projected to bring analogous consequences by the midweek period.

Rock slides currently triggered by the storm have resulted in two fatalities in the country, according to local authorities.

Expected Course

The hurricane is predicted to move across the island nation by the middle of the week before passing across the Antillas Mayores and emerging into the Atlantic Ocean.

By the moment it makes contact with Cuba, it is anticipated to have reduced to a category three cyclone.

Environmental Background

While it is difficult to link specific storms to environmental shifts, researchers say it is resulting in weather phenomena more common and more extreme.

Higher ocean heat generate greater water vapor in the atmosphere, aiding in the formation of tropical cyclones.

Prior to the commencement of this season's Atlantic storm period, weather organizations projected above-normal activity, referencing heated marine conditions and potential enhanced seasonal rains around the western African continent - where Atlantic storms typically originate.