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Tropical Storm Melissa is predicted to escalate to a infrequent highest-level cyclone as it veers towards Jamaica, bringing life-threatening flash flooding and mudslides.

The cyclone, which recorded wind speeds of up to 120 miles per hour as of 06:00 GMT, is now shifting toward the northwest in the Caribbean and is expected to make landfall by Tuesday, based on data from weather experts.

Advisories of power cuts and disruption to utilities have been released as this storm produces up to 76cm of precipitation and storm surges as high as 13ft above ground. "Seek shelter now," residents have been advised.

The cyclone is the 13th hurricane in the current Atlantic storm period, which usually concludes in November.

Category Five Hurricane Risk

A Category 5 hurricane is the most intense classification, with wind speeds of at least 157mph.

While this storm is expected to weaken to a category four hurricane before making landfall on Jamaica, authorities said there was "very little practical difference in the overall impacts" upon making contact with land, and that the cyclone will be "equally strong" when it strikes the island.

Immediate Safety Steps

With tropical storm-strength winds and rain predicted to begin well before it moves across Jamaica's central region - including potentially the city of Kingston - warnings state that "safety measures need to be finalized quickly".

"A multi-day period of harmful winds and heavy rainfall have begun and will cause devastating and dangerous sudden floods and numerous mudslides," advised meteorological officials.

The country's head of government Andrew Holness commented: "I understand that there are many Jamaicans who are concerned, who are extremely apprehensive, and appropriately: you should be concerned.

"However the optimal approach to manage anxiety and any nervousness and worry is to stay ready."

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

Broader Consequences

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

Rock slides presently generated by the hurricane have caused two deaths in Haiti, according to the nation's Civil Protection agency.

Projected Trajectory

Melissa is predicted to cross the island nation by midweek before moving through the Caribbean archipelago and entering the Atlantic.

By the moment it makes contact with the Caribbean nation, it is anticipated to have reduced to a third-level storm.

Environmental Connection

Even though it is challenging to connect specific storms to climate change, researchers say it is making weather phenomena more common and more extreme.

Warmer oceans generate greater water vapor in the atmosphere, helping fuel the development of storms.

Before the beginning of this season's Atlantic hurricane season, climate agencies projected higher-than-average occurrence, mentioning elevated ocean temperatures and likely enhanced seasonal rains around African coastal regions - where Atlantic storms often form.