Jamaica is facing the full force of Hurricane Melissa, the most powerful storm to ever strike the island since record-keeping began in the mid-1800s.

The Category 5 hurricane, packing sustained winds of 175 mph (280 km/h), is already battering the southern coast and is expected to move diagonally across the island through Tuesday.

Authorities have warned that the combination of violent winds, torrential rainfall, and towering storm surges could bring unprecedented destruction, isolating entire communities and crippling infrastructure for days.

The US National Hurricane Center (NHC) said Melissa underwent extreme rapid intensification, strengthening from 140 mph to 175 mph in just 24 hours — a rate that meteorologists say is fuelled by exceptionally warm Caribbean waters and low wind shear.

The storm’s slow movement, currently around 2 mph, makes it particularly dangerous, as it will linger longer over Jamaica, dumping relentless rain and intensifying flooding.

Record-breaking storm devastates Jamaica’s southern coast

By early Tuesday morning (local time), the hurricane’s eyewall began scraping Jamaica’s southern parishes, including St Elizabeth, Manchester, and Clarendon.

Forecasts predict rainfall between 15 and 30 inches (38 to 76 cm) in some areas, and storm surges up to 13 feet (4 metres) along the southern coastline. The northwestern coast, including Montego Bay, could see surges of 2 to 4 feet.

The US National Hurricane Center issued a stark warning on X, urging residents to remain sheltered.