Rising Intensity of Marine Heatwaves and Atmospheric Cyclones in the Mediterranean

New research by Greek academics from the University of the Aegean and Aristotle University of Thessaloniki highlights the increasing intensity of marine heatwaves and atmospheric cyclones over the past 40 years. The study reveals a significant correlation between these phenomena, emphasizing how warmer sea temperatures fuel stronger atmospheric systems such as medicanes (Mediterranean hurricanes). Areas like the northern Ionian Sea, west of Cyprus, and the Gulf of Genoa show the strongest interactions. The research underscores that years with intense cyclonic activity often coincide with powerful marine heatwaves, peaking in 2018. This trend indicates a ‘tropicalization’ of the Mediterranean, especially in its northern seas, where traditionally cooler waters are now warming more rapidly. Monitoring marine heatwaves could enhance short-term weather predictions and long-term climate assessments, reinforcing the need for continuous observation of Greek seas. Experts stress improving measurement systems to better account for rising sea temperatures impacting both medicanes and low-pressure systems.