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Cyclone Melissa is predicted to become a infrequent highest-level hurricane as it turns towards Jamaica, delivering life-threatening sudden floods and rock falls.

This weather system, which recorded winds of up to 120 mph as of 6:00 AM GMT, is now shifting northwest in the Caribbean and is projected to reach land by early next week, as reported by meteorological authorities.

Advisories of blackouts and disruption to utilities have been announced as the hurricane brings up to thirty inches of rainfall and coastal flooding as high as 4m above ground. "Take cover without delay," locals have been urged.

Melissa is the 13th named cyclone in the current Atlantic season, which normally finishes in the eleventh month.

Most Intense Hurricane Risk

A highest-level cyclone is the strongest type, with winds of at least 252 km/h.

While this storm is expected to weaken to a Category 4 cyclone before making landfall on the island, experts said there was "almost no noticeable change in the general consequences" upon landfall, and that the hurricane will be "just as powerful" when it strikes the island.

Immediate Readiness Measures

With tropical storm-strength winds and rain predicted to begin long before it crosses central Jamaica - including potentially the capital, Kingston - warnings emphasize that "readiness efforts must be accelerated".

"A multi-day period of harmful winds and torrential rain has started and will cause catastrophic and life-threatening sudden floods and multiple landslides," advised weather authorities.

Jamaican Prime Minister Andrew Holness commented: "I know that there are numerous residents who are concerned, who are deeply troubled, and rightfully so: you should be concerned.

"Yet the optimal approach to address worry and any unease and anxiety is to remain prepared."

Residents are being advised to fortify their houses with protective bags and plywood sheets, and to stock up on basic necessities.

Regional Consequences

Advisories are also ongoing for regions of the neighboring country encompassing the capital, Port au Prince, the Dominican Republic and eastern Cuba, where the hurricane is projected to bring comparable impacts by the midweek period.

Landslides currently triggered by the hurricane have resulted in two fatalities in the country, according to local authorities.

Expected Course

This weather system is forecast to move across the island nation by midweek before passing across the Greater Antilles and out into the Atlantic.

By the moment it arrives at the Caribbean nation, it is anticipated to have weakened to a third-level storm.

Weather Context

While it is difficult to associate particular meteorological occurrences to climate change, scientists say it is causing climate patterns more common and more intense.

Warmer oceans produce more moisture in the environment, aiding in the formation of storms.

Before the commencement of the current Atlantic storm period, climate agencies projected increased storm frequency, referencing elevated ocean temperatures and possible more intense weather patterns around African coastal regions - where hurricanes frequently develop.