This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Typhoon Roke (2011) | |
|---|---|
| Name | Roke |
| Basin | WPac |
| Year | 2011 |
| Formdate | August 21, 2011 |
| Dissipated | September 3, 2011 |
| 10-min winds | 90 |
| 1-min winds | 100 |
| Pressure | 935 |
| Fatalities | 13 total |
| Damages | 3130000000 |
| Areas | Philippine Sea, Ryukyu Islands, Okinawa Prefecture, Kyushu, Honshu, Kanto region, Tōhoku region, Hokkaido |
| Cyclone | typhoon |
Typhoon Roke (2011) was a powerful Pacific typhoon that struck parts of the Ryukyu Islands and central Japan in late August and early September 2011. Originating from a monsoon trough east of the Philippine Sea, the system intensified into a severe tropical cyclone that produced strong winds, heavy rainfall, and storm surge across multiple prefectures. The storm affected transportation hubs, energy infrastructure, and agricultural areas, prompting nationwide emergency measures and international monitoring.
An area of disturbed convection embedded in the western portion of the North Pacific Ocean monsoon trough consolidated on August 21, 2011, northeast of the Philippine Sea. The Japan Meteorological Agency identified the system as a tropical depression before the Joint Typhoon Warning Center began issuing advisories, as environmental conditions—sea surface temperatures associated with the Kuroshio Current, low vertical wind shear influenced by the subtropical ridge, and upper-level outflow aided by an approaching trough—promoted development. Rapid organization produced a tropical storm by August 23, and continued intensification led to typhoon status as the circulation deepened and central pressure fell. Roke tracked northward under the steering influence of the western Pacific subtropical high and an adjacent mid-latitude trough, executing recurvature toward the Ryukyu Islands and the southern main island of Kyushu. Interaction with the mid-latitude baroclinic zone and eyewall replacement cycles contributed to fluctuations in intensity; at peak strength the system exhibited typhoon-force winds with minimum central pressure near 935 hPa before undergoing extratropical transition as it accelerated northeastward, merging with a mid-latitude cyclone near the waters south of Hokkaido in early September.
Authorities in the Okinawa Prefecture and mainland prefectures activated disaster response plans coordinated by the Cabinet Office (Japan) and regional Fire and Disaster Management Agency units. Local governments in Kagoshima Prefecture, Miyazaki Prefecture, and Fukuoka Prefecture issued evacuation advisories for coastal and riverine communities, while municipal offices mobilized shelters and communicated through Japan Meteorological Agency bulletins and the Japan Coast Guard ferry advisories. Railway operators such as Japan Railways Group suspended services on affected lines, and airport authorities at Fukuoka Airport, Kagoshima Airport, and Naha Airport canceled flights. The Self-Defense Forces readied assets for post-storm relief and the Ministry of Land, Infrastructure, Transport and Tourism inspected levees and river systems, with utilities from Tokyo Electric Power Company and regional power companies prepositioning crews to address outages.
Roke produced destructive winds, torrential rainfall, and coastal inundation across multiple prefectures. The Ryukyu Islands experienced severe wind damage with uprooted trees and roof loss, disrupting services on Okinawa Island and prompting port closures affecting United States military bases based in Okinawa Prefecture. On mainland Kyushu and Shikoku heavy precipitation resulted in flash flooding, landslides, and river overflows in municipalities near the Kikuchi River and Chikugo River basins; several landslides struck rural communities in Kumamoto Prefecture and Ehime Prefecture. Transportation systems were heavily impacted: services on the Sanyo Shinkansen and regional highways were suspended, and ports experienced damage to quays and moored vessels. Agricultural losses included inundated rice paddies in the Kanto region and orchards in Yamagata Prefecture, while industrial facilities reported temporary shutdowns. Human tolls included multiple fatalities and dozens injured, with thousands displaced into emergency shelters. Electric power outages affected wide swaths of population centers, and storm-surge inundation damaged coastal infrastructure in Miyagi Prefecture and Iwate Prefecture where recovery from earlier events remained ongoing.
Following dissipation, national and prefectural authorities coordinated recovery through the Cabinet Office (Japan)’s disaster response framework, deploying Japan Self-Defense Forces units alongside municipal emergency responders for debris removal and infrastructure repair. Restoration of transportation relied on rapid inspections by Ministry of Land, Infrastructure, Transport and Tourism engineers and asset mobilization by East Japan Railway Company and West Japan Railway Company. Utility companies prioritized grid repairs and temporary power restoration while the Ministry of Agriculture, Forestry and Fisheries assessed crop damages and extended relief subsidies to affected farmers. Reconstruction funding from the Diet (Japan) supplemented local budgets, and international monitoring agencies, including the World Meteorological Organization, recorded synoptic data for post-storm analysis. Community-led volunteer organizations and non-governmental relief groups aided relief distribution to shelters in urban centers like Fukuoka and Sendai.
Meteorological agencies reviewed Roke’s lifecycle in relation to contemporaneous systems such as Typhoon Nanmadol (2011) and evaluated intensity estimates from the Japan Meteorological Agency and Joint Typhoon Warning Center analyses. While Roke produced significant impacts, its name remained on the northwest Pacific naming lists during subsequent rotations; however, national discussions in affected prefectures considered retiring names in the wake of recurrent damaging storms, a process governed by the ESCAP/WMO Typhoon Committee. Climatologists referenced Roke in assessments of 2011 season variability and links to large-scale modes like the Madden–Julian Oscillation and Pacific sea-surface temperature anomalies for attribution studies.
Category:2011 Pacific typhoon season Category:Typhoons in Japan