Hurricane Melissa: A Storm of the Century, Intensified by Climate Change

As Hurricane Melissa made its way from the Atlantic Ocean into the Caribbean and towards Jamaica, it passed through waters with temperatures that were 1.4C warmer on average due to human-caused climate change. Just south of the island country, it hit waters above 30 degrees Celsius, where it rapidly intensified into a category five storm. The storm's rapid intensification was fueled by warm waters, and Climate Central scientist Kristina Dahl said that it was "absolutely historic" and would go down as one of the strongest storms on record in the Atlantic.

Key Takeaways:

• Hurricane Melissa traveled over waters made 1.4C warmer on average by human-caused climate change, allowing it to rapidly intensify into a category five storm.
• The storm underwent extreme rapid intensification, with an increase of 111 kilometers per hour in just 24 hours, double the standard threshold for rapid intensification.
• Climate change has made tropical cyclones more intense, with higher wind speeds and heavier rainfalls, with researchers noting a 10-15% increase in moisture in the atmosphere.
• Warm waters fueled the storm's power, and it was able to move slowly and gain strength due to high water temperatures.
• Hurricane Melissa was the second major storm in a row, following Hurricane Milton, which also underwent rapid intensification.
• The World Meteorological Organization has dubbed Hurricane Melissa the "storm of the century," at least so far.
• Despite its strength, the storm showed signs of resilience, maintaining its intensity despite being next to a big island and not experiencing the usual weakening effects of mountains or cold water.
• Researchers note that climate change is making tropical cyclones more frequent and intense, with a 7% increase in moisture per degree Celsius of warming.
• Early warning systems and preparation have improved our ability to track and predict these kinds of storms.

Statistics:

• Hurricane Melissa traveled over waters made 1.4C warmer on average by human-caused climate change.
• The storm underwent extreme rapid intensification, with an increase of 111 kilometers per hour in just 24 hours.
• Climate change has led to a 10-15% increase in moisture in the atmosphere.
• For every degree Celsius of warming, there is about 7% more moisture that the atmosphere can hold.
• Tropical cyclones fueled by climate change are developing more rapidly and are more intense, with higher wind speeds and heavier rainfalls.

Sources:

• Climate Central
• Kristina Dahl, Climate Central scientist
• World Meteorological Organization
• Brian McNoldy, University of Miami hurricane researcher
• Kevin Trenberth, atmospheric scientist