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Cyclone Melissa is projected to escalate to a infrequent highest-level cyclone as it shifts toward the Caribbean island, delivering dangerous flash flooding and rock falls.

The cyclone, which registered winds of up to 195 km/h as of 0600 Greenwich Mean Time, is now shifting northwest in the Caribbean and is projected to make landfall by early next week, according to weather experts.

Warnings of power cuts and disruption to utilities have been issued as this storm generates up to 30 inches of rain and coastal flooding as high as 4m above typical tides. "Take cover without delay," inhabitants have been urged.

The cyclone is the thirteenth hurricane in the ongoing Atlantic storm period, which normally finishes in late autumn.

Category Five Storm Danger

A category five hurricane is the strongest type, with wind speeds of at least 252 km/h.

While the hurricane is projected to diminish in strength to a category four storm before reaching Jamaica, meteorologists said there was "minimal real distinction in the total effects" upon landfall, and that the storm will be "just as powerful" when it strikes the island.

Urgent Safety Steps

With storm-force winds and rain predicted to begin long before it moves across the island's interior - perhaps encompassing the city of Kingston - warnings state that "safety measures need to be finalized quickly".

"Several days of damaging winds and intense precipitation are underway and will cause catastrophic and life-threatening sudden floods and numerous rock slides," counseled climate experts.

Jamaican Prime Minister Andrew Holness stated: "I know that there are countless citizens who are concerned, who are extremely apprehensive, and appropriately: you should be concerned.

"But the optimal approach to handle anxiety and any apprehension and worry is to remain prepared."

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

Regional Consequences

Alerts are also active for areas in Haiti such as the main city, Port au Prince, the Dominican Republic and the eastern part of Cuba, where the hurricane is projected to bring comparable impacts by the middle of next week.

Landslides already being caused by the cyclone have already killed two in Haiti, according to local authorities.

Expected Course

Melissa is forecast to move across Cuba by the middle of the week before passing across the Greater Antilles and emerging into the Atlantic.

By the moment it reaches the Caribbean nation, it is anticipated to have reduced to a Category 3 storm.

Climate Context

Even though it is challenging to link individual weather events to environmental shifts, researchers say it is resulting in climate patterns increasingly frequent and more extreme.

Warmer oceans create additional humidity in the environment, contributing to the creation of hurricanes.

Ahead of the beginning of this year's Caribbean cyclone season, climate agencies projected higher-than-average occurrence, citing elevated ocean temperatures and potential more intense weather patterns around the western African continent - where Atlantic storms frequently develop.