The annual rate of tropical cyclones has remained stable at 47 per year; however, their intensity has markedly increased, with data indicating a rise in average wind speeds from 182kph to 192kph. The rate of category five cyclones has also increased significantly, from 10 percent to 14 percent over the past decade. These trends align with claims from the IPCC regarding the impacts of climate change on cyclone frequency and severity.
Recent international studies indicate that, while the annual number of tropical cyclones has remained relatively constant over the past forty years at approximately 47 per year, the intensity of these storms has markedly increased. Data from the NOAA and corroborated by the WMO reveal that the average maximum wind speed of cyclones has risen from 182kph to 192kph, reflecting a 5 percent increase. The frequency of cyclones classified as category five on the Saffir-Simpson scale has escalated significantly, with the proportion of storms exceeding 250kph soaring from 10 percent to 14 percent in the last decade, a 40 percent increase.
These findings are consistent with the assessments of the United Nations’ Intergovernmental Panel on Climate Change (IPCC), which have warned that climate change is likely to exacerbate the incidence of devastating cyclones, especially those of categories four and five. As expressed by climatologist Robert Vautard, “If one can assume climate change is responsible for these trends, make no mistake, the humanitarian catastrophes generated by cyclones are largely due to poverty, vulnerability and a lack of protection for the affected populations.”
In 2024 alone, there were 42 recorded tropical cyclones, 19 of which made landfall, with Hurricane Milton being the most powerful storm of the year, achieving winds of 278kph. The West Pacific region was particularly afflicted by cyclones, with 15 typhoons, including six that struck the Philippines. A recent cyclone in the Indian Ocean, Cyclone Chido, resulted in severe humanitarian repercussions, leaving 39 confirmed deaths and over 4,000 individuals injured.
Tropical cyclones, commonly referred to as hurricanes or typhoons, are severe weather phenomena characterized by intense winds and heavy rain. The data on these storms is crucial for understanding their patterns and impacts, particularly as climate change influences weather events globally. The stabilizing number of cyclones combined with increasing intensity marks a worrying trend for areas vulnerable to natural disasters, highlighting the necessity for adaptive measures concerning humanitarian responses and infrastructure improvements.
In summary, while the frequency of tropical cyclones has not surged significantly, their intensified nature presents a growing threat to affected regions. The data underscores the urgent need for enhanced preparedness and recovery strategies, as illustrated by the recent impacts observed in 2024. The correlation between climate change and the escalating ferocity of these storms reinforces the pressing need for global cooperation to mitigate risks associated with such disasters.
Original Source: www.rfi.fr
