Typhoon Hagibis

Typhoon Hagibis
Name	Hagibis
Basin	WPac
Year	2019
Type	Typhoon
Formed	October 2019
Dissipated	October 2019
10-min winds	105
1-min winds	150
Pressure	915
Areas	Guam, Federated States of Micronesia, Japan, Izu Islands, Honshu
Fatalities	100+
Damages	$15 billion

Typhoon Hagibis

Typhoon Hagibis was a powerful Category 5 Pacific typhoon that struck parts of the Western Pacific Ocean and made landfall in Japan in October 2019, producing catastrophic flooding, landslides, and widespread infrastructure collapse. The storm's rapid intensification and large size led to extensive warnings from the Japan Meteorological Agency, the United States Joint Typhoon Warning Center, and regional authorities, prompting emergency declarations from the Prime Minister of Japan and response operations by the Japan Self-Defense Forces. Hagibis's impacts prompted international offers of assistance from governments such as the United States, Australia, and United Kingdom, and later drove policy discussions in the Diet of Japan and international forums including the United Nations Office for the Coordination of Humanitarian Affairs.

Meteorological history

Hagibis originated from a tropical disturbance near the Federated States of Micronesia and evolved within the Monsoon trough (Western Pacific), influenced by a subtropical ridge and an interaction with a mid-latitude trough near the Philippine Sea. The system was monitored by the Japan Meteorological Agency, the Joint Typhoon Warning Center, and the Guam Weather Forecast Office, and underwent rapid intensification over the Western Pacific Warm Pool aided by low vertical wind shear and high ocean heat content in the vicinity of the Kuroshio Current. Satellite analysis by agencies such as the National Oceanic and Atmospheric Administration and the Japan Aerospace Exploration Agency showed a well-defined eye and symmetric convection, prompting upgraded advisories from the Hong Kong Observatory and the China Meteorological Administration. Hagibis attained peak 10-minute sustained winds as estimated by the Japan Meteorological Agency and peak 1-minute winds per the Joint Typhoon Warning Center before recurving northeast toward the Izu Islands and making landfall on Honshu.

Preparations and warnings

As the storm intensified, the Japan Meteorological Agency issued emergency warnings and urged evacuation in prefectures including Kanagawa Prefecture, Shizuoka Prefecture, Nagano Prefecture, and Saitama Prefecture, while the Fire and Disaster Management Agency (Japan) coordinated with municipal governments. The Prime Minister of Japan convened the Cabinet, and the Japan Self-Defense Forces were put on alert alongside police forces such as the Tokyo Metropolitan Police Department and the Osaka Prefectural Police for potential rescue operations. Mass transportation shutdowns affected operators like East Japan Railway Company, Tokyo Metro, Shinkansen (Tokaido Shinkansen), and airlines including Japan Airlines and All Nippon Airways, while the International Olympic Committee and organizers of the Rugby World Cup implemented safety measures for events in venues such as Ajinomoto Stadium and Tokyo Stadium. Local authorities used systems like the J-Alert to broadcast evacuation orders and coordinate with agencies including the Ministry of Land, Infrastructure, Transport and Tourism.

Impact and casualties

Hagibis produced record-breaking rainfall in river basins such as the Tamagawa River and the Fuefuki River, triggering widespread flooding and landslides in regions encompassing Chiba Prefecture, Yokohama, Nagano City, and parts of the Kanto region. Dam failures and levee breaches led to inundation of residential areas in Kawasaki, Fujinomiya, and Ichinoseki, while torrential runoff caused catastrophic mudslides in mountainous areas including Yamanashi Prefecture and Shizuoka Prefecture. Search and rescue missions by the Japan Coast Guard and the Self-Defense Forces recovered victims from collapsed buildings, flooded homes, and swept-away vehicles; official counts reported more than 100 fatalities and hundreds injured across affected prefectures. Hospitals such as St. Luke's International Hospital and Tokyo Medical University Hospital received surge patients, and shelters managed by municipal governments in cities like Nagoya and Saitama housed displaced residents.

Economic and infrastructural damage

The storm inflicted severe damage on transportation networks, disrupting railways operated by Central Japan Railway Company and West Japan Railway Company, closing sections of the Chuo Expressway and damaging sections of the Tomei Expressway, causing nationwide logistical delays that impacted companies including Toyota Motor Corporation, Honda Motor Co., and Nippon Steel Corporation. Power outages affected millions via utility companies such as Tokyo Electric Power Company and Chubu Electric Power, while ports including Yokohama Port and Shimizu Port reported quay and terminal damage that disrupted shipping lines like Mitsui O.S.K. Lines and NYK Line. Agricultural losses hit producers of Fujitsu-branded electronics supply chains and rice farmers in the Niigata Prefecture, while tourist sites including Mount Fuji, Hakone, and the Izu Peninsula experienced cancellations. Insurers such as Sompo Japan Insurance and Tokyo Marine Holdings faced large claims, and the Ministry of Economy, Trade and Industry estimated tens of billions of dollars in aggregate damages to infrastructure, housing, and industry.

Emergency response and relief efforts

Immediate response involved multi-agency coordination among the Cabinet Office (Japan), the Self-Defense Forces, the Japan Coast Guard, and local fire departments including the Sumida Fire Department, supported by volunteer organizations such as the Japanese Red Cross Society and international NGOs like Save the Children and Doctors Without Borders. Evacuations were carried out using shelters run by municipal governments, and emergency supply distribution was managed with assistance from corporations including 7-Eleven and Aeon Co. Medical teams from institutions such as St. Luke's International Hospital and public health units under the Ministry of Health, Labour and Welfare addressed injuries and waterborne disease risks, while engineering teams from the Ministry of Land, Infrastructure, Transport and Tourism assessed levee damage. International aid offers came from the United States Agency for International Development, the Australian Department of Foreign Affairs and Trade, and the British Embassy Tokyo, though the primary effort remained domestic, leveraging contingency plans refined after events like the 2011 Tōhoku earthquake and tsunami.

Aftermath, recovery, and rebuilding

Recovery involved reconstruction projects led by prefectural governments in Kanagawa Prefecture, Chiba Prefecture, and Shizuoka Prefecture, with funding allocations debated in sessions of the Diet of Japan and implemented through ministries including the Ministry of Land, Infrastructure, Transport and Tourism and the Ministry of Internal Affairs and Communications. Long-term efforts included riverbank reinforcement around the Tonegawa and the installation of new flood-control infrastructure informed by research from institutions such as the University of Tokyo and the National Research Institute for Earth Science and Disaster Resilience. Housing reconstruction programs coordinated with municipal authorities and private developers like Mitsubishi Estate and Sumitomo Realty & Development, while utility companies invested in grid resilience with technologies promoted by the New Energy and Industrial Technology Development Organization. Hagibis influenced policy discussions in international forums such as the United Nations Framework Convention on Climate Change and prompted enhanced collaboration between the Japan Meteorological Agency and regional partners including the Korea Meteorological Administration to improve early warning systems.

Category:2019 Pacific typhoon season Category:Typhoons in Japan