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Tropical Storm Melissa is forecast to become a uncommon highest-level storm as it veers toward Jamaica, delivering life-threatening flash flooding and mudslides.

The hurricane, which had winds of up to 195 km/h as of 0600 Greenwich Mean Time, is presently veering northwest in the Caribbean region and is expected to make landfall by Tuesday, based on data from meteorological authorities.

Advisories of blackouts and disruption to utilities have been released as Melissa brings up to thirty inches of rainfall and storm surges as high as 4m above ground. "Seek shelter now," locals have been told.

Melissa is the 13th storm in the ongoing Atlantic storm period, which normally finishes in November.

Highest-Level Hurricane Threat

A highest-level storm is the most intense classification, with sustained winds of at least 252 km/h.

Although this storm is set to weaken to a fourth-level storm before arriving at Jamaica, authorities said there was "almost no noticeable change in the total effects" upon making contact with land, and that the storm will be "at least that intensity" when it strikes the country.

Urgent Safety Steps

With tropical storm-strength gusts and precipitation already expected long before it crosses Jamaica's central region - including potentially the city of Kingston - advisories emphasize that "readiness efforts must be accelerated".

"Several days of harmful winds and torrential rain are underway and will cause catastrophic and life-threatening rapid water accumulation and many mudslides," counseled weather authorities.

Jamaican Prime Minister the statesman said: "I know that there are countless citizens who are worried, who are extremely apprehensive, and appropriately: worry is natural.

"However the best way to manage worry and any apprehension and concern is to stay ready."

Residents are being instructed to fortify their houses with sandbags and wooden boards, and to stock up on essentials.

Broader Consequences

Advisories are also ongoing for parts of Haiti including the primary urban center, the Dominican Republic and Cuba's eastern region, where Melissa is expected to bring comparable impacts by the middle portion of the coming week.

Mudslides already being caused by the storm have caused two deaths in Haiti, according to emergency services.

Expected Path

Melissa is predicted to cross Cuba by midweek before traveling via the Greater Antilles and out into the Atlantic.

By the point it makes contact with the Caribbean nation, it is anticipated to have weakened to a Category 3 storm.

Environmental Connection

Although it is challenging to associate specific storms to global warming, researchers say it is making weather phenomena increasingly frequent and more intense.

Warmer oceans produce additional humidity in the air, aiding in the formation of tropical cyclones.

Prior to the start of this year's Atlantic hurricane season, climate agencies predicted increased storm frequency, mentioning heated marine conditions and potential enhanced seasonal rains around the western African continent - where Atlantic storms typically originate.