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Tropical Storm Melissa is forecast to strengthen into a infrequent highest-level cyclone as it shifts toward Jamaica, bringing deadly rapid inundation and mudslides.

The cyclone, which had wind speeds of up to 120 miles per hour as of 06:00 GMT, is presently veering toward the northwest in the Caribbean Sea and is expected to make landfall by midweek, as reported by hurricane specialists.

Alerts of blackouts and structural damage have been released as Melissa generates up to 76cm of rainfall and storm surges as high as 4m above normal levels. "Find safe refuge immediately," residents have been advised.

The cyclone is the 13th storm in the ongoing Atlantic hurricane season, which typically ends in late autumn.

Category Five Cyclone Threat

A category five hurricane is the most powerful category, with winds of at least 157 miles per hour.

While the hurricane is expected to reduce in intensity to a category four storm before reaching Jamaica, meteorologists said there was "minimal real distinction in the general consequences" upon landfall, and that the storm will be "at least that intensity" when it strikes the country.

Critical Readiness Measures

With tropical storm-level gusts and precipitation anticipated well in advance well before it passes over Jamaica's central region - perhaps encompassing the capital, Kingston - warnings state that "readiness efforts must be accelerated".

"An extended timeframe of destructive gusts and intense precipitation are underway and will cause catastrophic and life-threatening sudden floods and numerous mudslides," counseled meteorological officials.

The nation's leader the official said: "I know that there are numerous residents who are worried, who are very concerned, and appropriately: concern is justified.

"Yet the best way to handle anxiety and any apprehension and anxiety is to remain prepared."

Inhabitants are being advised to fortify their houses with protective bags and plywood sheets, and to gather basic necessities.

Broader Impact

Advisories are also in effect for areas in the neighboring country including the main city, Port au Prince, the Dominican Republic and Cuba's eastern region, where the hurricane is expected to bring comparable impacts by the middle portion of the coming week.

Landslides presently generated by the cyclone have resulted in two fatalities in Haiti, according to emergency services.

Future Trajectory

This weather system is projected to move across the island nation by the middle of the week before passing across the Caribbean archipelago and out into the open ocean.

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

Weather Context

Although it is hard to associate particular meteorological occurrences to environmental shifts, experts say it is causing weather phenomena more prevalent and more intense.

Warmer oceans produce more moisture in the environment, aiding in the formation of hurricanes.

Before the beginning of the current Atlantic hurricane season, weather organizations predicted increased storm frequency, referencing warmer seas and likely enhanced seasonal rains around the western African continent - where Atlantic storms often form.