On September 24, 2025, Typhoon Ragasa, a powerful super typhoon, significantly disrupted maritime activities across southern China and Taiwan, causing port closures, vessel diversions, and operational challenges. Observed from the International Space Station by astronaut Jonny Kim (NASA), this storm, which reached the intensity of a Category 5 hurricane, became the most powerful storm of 2025 with wind speeds exceeding 100 knots. While no marine casualties were reported, the storm caused significant damage on land, including 14 fatalities due to a levee failure in Taiwan.

Originating in the Western Pacific, Ragasa followed an unpredictable northwest trajectory toward Taiwan. Although it passed south of the island, minimizing direct impact, the storm's heavy rainfall triggered a catastrophic levee breach in Hualien County, Taiwan. The resulting flood of mud and water claimed 14 lives, a number revised down from initial estimates of 17 deaths. For seafarers, this event underscores the importance of monitoring weather patterns and preparing for indirect consequences of storms, such as flooding, which can affect coastal infrastructure and port access.

In southern China, particularly in the economic hub of Guangzhou, Ragasa prompted widespread port and terminal closures. Ports in Hong Kong, Shenzhen, and Guangzhou halted operations to secure facilities and mitigate damage from forecasted winds, up to 17 inches of rain, and coastal waves reaching 23 feet. These closures disrupted container-freight operations at major terminals, including SCT, CCT, MCT, and Yantian International Container Terminals (YICT). Only outbound vessel transits were permitted, while smaller vessels were required to secure in port. This timing was particularly challenging, as the closures coincided with preparations for China's Golden Week holiday, a period of heightened shipping activity due to factory shutdowns.

The storm also affected Hong Kong and Macau, causing property damage and prompting residents to shelter in place. Social media reports highlighted panic buying, with supermarket shelves emptied in commercial centers like Shenzhen. For maritime professionals, this situation highlights the need for robust contingency planning, including securing vessels and cargo, coordinating with port authorities, and ensuring crew safety during extreme weather events.

This was the second major storm to disrupt southern China's maritime operations within a month, following Typhoon No. 16 in early September. Additionally, another storm, Opong, is expected to intensify into a typhoon and move through southern Luzon into the South China Sea, potentially impacting Hainan. This pattern of frequent storms emphasizes the importance of proactive weather monitoring and preparedness for seafarers operating in the region.

Seafarers can learn several key lessons from Typhoon Ragasa. First, staying informed about weather forecasts and storm tracks is critical for safe navigation and port operations. Second, understanding port closure protocols and securing vessels properly can prevent damage and ensure crew safety. Finally, preparing for supply chain disruptions, especially during peak shipping periods, is essential for maintaining operational efficiency.

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