Hurricane Melissa was one of the strongest hurricanes to ever hit the Caribbean.

The atmospheric and ocean conditions leading to the rapid intensification of the hurricane were found to be made six times more likely by climate change, according to a World Weather Attribution study.

Melissa escalated from a tropical storm to a Category 4 hurricane in just a day, driven by higher than normal sea temperatures before making landfall in Jamaica as a Category 5 hurricane.

Days ahead of its landfall, meteorologists had predicted favorable conditions for rapid intensification, with Caribbean Sea temperatures recorded at approximately 1.5 degrees Celsius above average. The sustained heat provided ideal conditions for the hurricane's development, which eventually made a second landfall in eastern Cuba.

The study also indicated that climate change contributed to increased maximum wind speeds and total rainfall levels associated with Melissa. The extreme weather experienced is viewed by experts as a significant indicator of the changes in storm patterns due to a warming climate.

The Role of Climate Change and Melissa

The complexities of climate change's influence on tropical cyclones stem from the nature of these storms, which comprise a mix of rainfall, strong winds, and storm surge. A rapid attribution study by World Weather Attribution utilized various methodologies to determine the relationship between Melissa and climate change.

Comparative simulations demonstrated that climate change increased extreme rainfall linked to the storm by approximately 16%. Experts associated with the study highlighted the insufficiency of current climate models in representing extreme rainfall dynamics in the Caribbean region, yet the evidence reflects the undeniable amplification of rainfall due to climate change.

Furthermore, data suggests that maximum wind speeds experienced during Hurricane Melissa were augmented by 7% due to climate change. The catastrophic landfall in Jamaica serves as a forewarning of the dire repercussions climate change harbors for vulnerable nations.

Ahead of the upcoming COP30 conference, the destructive impact of Hurricane Melissa sheds light on the pressing need for climate finance to reach at-risk countries and a collective commitment from nations to reduce reliance on fossil fuels.