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Cyclone Melissa is forecast to strengthen into a uncommon highest-level storm as it shifts in the direction of the Caribbean island, causing deadly sudden floods and landslides.

The hurricane, which had wind speeds of up to 120 miles per hour as of 06:00 GMT, is currently turning north-west in the Caribbean and is projected to make landfall by early next week, according to hurricane specialists.

Warnings of blackouts and damage to infrastructure have been announced as the hurricane brings up to thirty inches of rainfall and sea level surges as high as 4m above typical tides. "Seek shelter now," locals have been urged.

The cyclone is the 13th cyclone in this year's Atlantic hurricane season, which typically ends in late autumn.

Highest-Level Storm Danger

A Category 5 cyclone is the strongest type, with wind speeds of at least 157 miles per hour.

While this storm is set to weaken to a category four hurricane before reaching the island, authorities said there was "minimal real distinction in the total effects" upon making contact with land, and that the cyclone will be "at least that intensity" when it hits the country.

Immediate Preparations

With tropical storm-level gusts and precipitation predicted to begin well before it moves across central Jamaica - including potentially the city of Kingston - warnings state that "preparations should be rushed to completion".

"Several days of harmful winds and torrential rain has started and will cause devastating and dangerous flash flooding and many mudslides," advised climate experts.

Jamaican Prime Minister Andrew Holness stated: "I understand that there are many Jamaicans who are worried, who are very concerned, and rightfully so: you should be concerned.

"Yet the most effective method to handle nervousness and any unease and worry is to remain prepared."

Locals are being told to protect their properties with sandbags and timber panels, and to accumulate basic necessities.

Broader Consequences

Alerts are also in effect for areas in the neighboring country including the capital, Port au Prince, the adjacent nation and Cuba's eastern region, where Melissa is expected to bring analogous consequences by the midweek period.

Landslides already being caused by the cyclone have caused two deaths in the country, according to emergency services.

Expected Trajectory

This weather system is projected to pass over Cuba by midweek before passing across the Greater Antilles and entering the open ocean.

By the time it reaches Cuba, it is anticipated to have reduced to a third-level cyclone.

Weather Background

Although it is difficult to link particular meteorological occurrences to climate change, experts say it is making climate patterns more common and more extreme.

Warmer oceans produce greater water vapor in the air, aiding in the creation of tropical cyclones.

Before the commencement of the current Atlantic hurricane season, weather organizations forecast higher-than-average occurrence, citing heated marine conditions and potential stronger monsoon activity around African coastal regions - where hurricanes often form.