East Coast Storms: Snow, Swell, and Potential Impacts
- Mediterranean cyclones, also known as "medicanes," are relatively rare but intense weather systems that form over the Mediterranean sea, capable of producing important wave heights and strong winds.
- A medicane, designated Cyclone Harry, generated a record-breaking 52-foot wave in the Mediterranean Sea in late January 2024. Windy.com reported the wave height, confirmed by analysis of data...
- Medicanes typically form in autumn and winter when there's a significant temperature difference between the warm sea surface and the colder air aloft. This instability, combined with...
Mediterranean Cyclones and Wave Advancement
Table of Contents
Mediterranean cyclones, also known as “medicanes,” are relatively rare but intense weather systems that form over the Mediterranean sea, capable of producing important wave heights and strong winds. These storms share characteristics with both tropical cyclones and mid-latitude cyclones, leading to complex and sometimes unpredictable behavior.
Formation of Medicane Cyclone Harry
A medicane, designated Cyclone Harry, generated a record-breaking 52-foot wave in the Mediterranean Sea in late January 2024. Windy.com reported the wave height, confirmed by analysis of data from the European Center for Medium-Range Weather Forecasts (ECMWF).
Medicanes typically form in autumn and winter when there’s a significant temperature difference between the warm sea surface and the colder air aloft. This instability, combined with low wind shear, allows for the development of a deep low-pressure system. The presence of upper-level divergence also aids in the intensification process. The World Meteorological Organization (WMO) details the formation process, noting that medicanes are not fully understood and research is ongoing.
Example: Cyclone Harry formed on January 21, 2024, and peaked in intensity on January 22, 2024, before dissipating on January 23, 2024. The storm impacted areas of Italy,Greece,and North Africa with heavy rainfall and strong winds.
characteristics of Mediterranean Cyclones
Mediterranean cyclones differ from tropical cyclones in several key aspects. They generally have a smaller diameter and a shorter lifespan. They also derive energy from different mechanisms, relying more on baroclinic instability (temperature contrasts) then the latent heat release associated with tropical cyclone development. Research published on ResearchGate highlights these distinctions.
Despite these differences, medicanes can still achieve hurricane-force winds and generate substantial storm surges and large waves. The steep slopes of the Mediterranean coastline and relatively small size of the sea basin can amplify the impact of these events. The european Habitat Agency (EEA) provides data on storm surge exposure in the Mediterranean region.
Evidence: A study published in the journal Weather and Climate Dynamics in 2023 found that the frequency of intense medicanes has increased in recent decades,potentially linked to rising sea surface temperatures in the Mediterranean Sea.Weather and Climate News reported on this study.
Breaking News Check (January 24, 2026)
As of January 24, 2026, there have been no reports of medicanes exceeding the intensity of Cyclone Harry. The Mediterranean Sea continues to experience periods of increased cyclonic activity, and monitoring efforts are ongoing. The National Hurricane Center (NHC),while primarily focused on Atlantic and Pacific storms,provides general details on tropical cyclone formation and monitoring techniques applicable to medicane observation.
recent research from the euro-Mediterranean Center on Climate Change (CMCC) indicates that the Mediterranean region is a climate change hotspot, with projected increases in sea surface temperatures and more frequent extreme weather events, including medicanes. This suggests a continued risk of intense storms and associated wave heights in the future.