Hurricane the storm is forecast to become a infrequent highest-level storm as it turns toward the Caribbean island, bringing dangerous sudden floods and rock falls.
This weather system, which registered wind speeds of up to 195 km/h as of 0600 Greenwich Mean Time, is now shifting toward the northwest in the Caribbean region and is projected to hit the coast by midweek, as reported by hurricane specialists.
Alerts of blackouts and disruption to utilities have been issued as Melissa generates up to 76cm of rainfall and coastal flooding as high as thirteen feet above typical tides. "Find safe refuge immediately," residents have been advised.
The cyclone is the 13th named hurricane in the ongoing Atlantic storm period, which typically ends in the eleventh month.
A Category 5 cyclone is the strongest type, with sustained winds of at least 252 km/h.
Even though Melissa is set to diminish in strength to a Category 4 cyclone before arriving at Jamaica, experts said there was "minimal real distinction in the total effects" upon reaching the coast, and that the cyclone will be "just as powerful" when it hits the island.
With tropical storm-strength gusts and precipitation already expected long before it passes over central Jamaica - perhaps encompassing the national capital - advisories emphasize that "preparations should be rushed to completion".
"An extended timeframe of destructive gusts and intense precipitation have begun and will cause devastating and dangerous flash flooding and many mudslides," counseled climate experts.
The country's head of government the official said: "I know that there are countless citizens who are worried, who are very concerned, and appropriately: concern is justified.
"Yet the optimal approach to handle anxiety and any nervousness and worry is to be prepared."
Inhabitants are being advised to protect their properties with protective bags and timber panels, and to stock up on necessary supplies.
Alerts are also active for areas in the neighboring country including the main city, Port au Prince, the neighboring country and the eastern part of Cuba, where this storm is projected to bring comparable impacts by the middle of next week.
Rock slides currently triggered by the hurricane have resulted in two fatalities in Haiti, according to local authorities.
Melissa is projected to pass over Cuba by Wednesday before passing across the Antillas Mayores and emerging into the open ocean.
By the moment it makes contact with the Caribbean nation, it is forecast to have weakened to a Category 3 hurricane.
Even though it is hard to associate individual weather events to global warming, scientists say it is causing climate patterns increasingly frequent and more extreme.
Increased sea temperatures produce more moisture in the environment, helping fuel the development of tropical cyclones.
Before the start of the current Caribbean cyclone season, weather organizations forecast higher-than-average occurrence, referencing heated marine conditions and possible more intense weather patterns around the western African continent - where tropical systems typically originate.
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