Meteorological history | |
---|---|
Formed | July 29,1971 |
Extratropical | August 9 |
Dissipated | August 10,1971 |
Unknown-strength storm | |
10-minute sustained (JMA) | |
Lowest pressure | 935 hPa (mbar);27.61 inHg |
Category 2-equivalent typhoon | |
1-minute sustained (SSHWS/JTWC) | |
Highest winds | 155 km/h (100 mph) |
Overall effects | |
Fatalities | 90 confirmed |
Missing | 7 |
Damage | Unknown |
Areas affected | Caroline Islands,Northern Mariana Islands,Ryukyu Islands,Korea,Japan,South Sakhalin,Kuril Islands |
Part of the 1971 Pacific typhoon season |
Typhoon Olive was an erratic and slightly long-lived tropical cyclone that impacted Japan and affected Manchuria during early-August 1971. It severely disrupted the 13th World Scout Jamboree,which was being held in Fujinomiya,Shizuoka Prefecture. The twentieth depression,nineteenth named storm,and twelfth typhoon of the 1971 Pacific typhoon season,the system was first noted as an area of circulation in a near-equatorial trough,located to the east of Guam on July 24. After moving through the area,the system took a northward direction due to the influence of a trough. It then commenced a northeast move before organizing,though it didn't strengthen to a tropical depression until July 29. Slow but gradual intensification occurred,becoming a tropical storm in the early hours of July 31 as it moved to the west,before taking a north-northwest track as it intensified to a typhoon on August 2 while approaching the Ryukyu Islands. On the next day,it reached its peak intensity of 155 km/h (95 mph) and an unusually low barometric pressure of 935 mbar,equivalent to a mid-level typhoon as it started to batter the third-largest island of Japan,Kyushu. It then moved to the north,while weakening back to a minimal typhoon before making landfall on the area,with the records pointing it to the east of Nagasaki on August 5. It rapidly weakened while traversing Kyushu,before entering the Sea of Japan. At this time,it passed near the southern part of Korea before curving to the northeast. It then passed near Russian Manchuria before weakening below gale-force,shortly before becoming extratropical as it passed through the La Pérouse Strait on August 9. It then accelerated through the Pacific Ocean before dissipating on the next day.
90 deaths were attributed from Olive,with the majority in Japan. The system also caused widespread flooding and landslides through the country and nearby South Korea. The total damages are unknown.
At 06:00 UTC on July 24, the China Meteorological Agency started to monitor an area of scattered convection and circulation in weather maps which was located in a near-equatorial trough, located to the east of Guam. [1] The agency estimated the barometric pressure of the disturbance to be 1010 mbar at that time. [1] Nearly two days after, the agency upgraded the system to a weak tropical depression, estimating the sustained winds to be at 35 km/h (20 mph), despite the disturbance being highly disorganized at that time. [1] On July 29, at 08:00 UTC, the Joint Typhoon Warning Center stated that the disturbance was now detected in their radar imagery and also started to watch the system's movement. [2] Also at that time, the CMA upgraded the system to a tropical storm based on their estimations. [1] At that time, the disturbance is highly disorganized, with its convection steered to the northeast, possibly due to the hostile environment where the system formed. [1] It started to move to the west while slowly consolidating before curving to the northeast, due to the influence of a subtropical ridge to its north. [2] Throughout the day, its circulation became defined, although it remained disorganized. [2] As the said ridge began to strengthen and dominate, the system turned sharply to the west in the early hours of July 30. [2] [1] It then slowly meandered on the area, where its organization became defined on satellite imagery. [2] Between 11:00 and 12:00 UTC of that day, the JTWC upgraded the system to a tropical storm and named it Olive. [2] The system had a good outflow, as being evidenced by radar imagery. [2]
Olive then slightly moved to the west-northwest before taking a north-northwestward track due to the weakness of another subtropical ridge, which was located near the Philippines. [2] The system also slowed down, before intensifying to a severe tropical storm at 18:00 UTC on the next day as the forward motion of the storm speeded. [1] Another ridge pulled the system to the northwest before again, slowing down as Olive became poorly defined on satellite images. [1] [2] On 12:00 UTC on August 1, the CMA upgraded the system to a minimal typhoon based on an estimate of 68 knots and an emerging eye; however, the JTWC only elevated the system's intensity to typhoon status at the same time on the next day. [1] [2] The system then accelerated to the northwest before intensifying further to a Category 2 typhoon at 12:00 UTC on August 3 and reached its peak intensity shortly, with maximum sustained winds of 155 km/h (95 mph) and an unusually low minimum barometric pressure of 935 mbar, as being recorded by a reconnaissance aircraft. [2] It then started to slow down and impact the northern part of the Ryukyu Islands, with Olive passing near Yakushima Island before midnight at its peak. [2] With the influence of a long-wave trough near the coast of East China, the system took a northward motion before making landfall on the main Japanese island of Kyushu, near Nagasaki Prefecture on the early hours of August 5 as it weakened to a minimal typhoon due to the interaction with the island. [1] [2] [3] It rapidly unraveled to a tropical storm as it passed through Saga Prefecture before moving through the Sea of Japan before midday. [2] It then made its closest approach with South Korea on August 6 before starting to curve to the northeast. [2] Olive then neared Nakhodka in Primorsky Krai on August 8 before weakening further to a tropical depression, shortly before becoming extratropical early the next day. [1] [2]
The extratropical remnants of Olive then passed through the La Pérouse Strait, a strait which separates the Russian island of Sakhalin and northern part of Hokkaido in Japan before moving through the Pacific Ocean before dissipating on August 10 near the International Date Line. [2]
Starting from October 4, the meteorological forecasters in the country are preparing for the brunt of Olive. [4] Rains were expected to be torrential and floods were also predicted. [4] Train and airline services in Kyushu were suspended, starting on August 5. [5]
A conducted research about Olive reported that the rain more dominated than the winds, classifying the system as a rain typhoon. [6] Heavy inundation damages were also seen throughout the southern part of Japan. [1] The Yakushima Station in Yakushima Island reported winds up to 80 knots and a minimum pressure of 938.7 mb, while no reports of damages were seen. [2] In Kasedashi City, Kagoshima, torrential downpours broke the embankment of the Kaseda River, flooding houses and establishments near the area. [7] The Kuma River in Kumamoto Prefecture also overflowed, destroying 209 houses and flooding 2,647 more. [8] The dam in the prefecture, namely Ichifusa Dam, also released large amounts of water to avoid failure, flooding its lake and destroying some houses nearby. [2]
A rainfall amount of 59.8 inches in Ebino, Miyazaki Prefecture were recorded causing widespread landslides, which killed 69 individuals. [2] [9] [10] The avalanche also destroyed houses and injured 209 persons, with the majority are because they are rescued from getting trapped in their houses. [2] Authorities in seas reported that 27 boats sunk in the Pacific Ocean and Sea of Japan, while two more large ships were agrounded; however, no names of the ships were given to the authorities. [2] [11] [5] All transportations, including train services, air traffic, sea services and shipping were suspended and affected, while incomplete reports said that 77 roads throughout Kyushu were destroyed. [12] [13] [14] Rainshowers were also reported as far as Tokyo, according to some individuals. [5]
Total deaths from Olive in Japan were at 69, while the damages were unknown. [15]
The typhoon heavily disrupted the activities of the 13th World Scout Jamboree, which was held in Fujinomiya, Shizuoka Prefecture from August 2 to 10, also the week when Olive formed. [16] [2] The rains started to pour on August 3, but this is due to an existing front. [17] The aftermath of the rains caused floods that reached their campsite. in Mount Fuji. [17] As a result, the Japanese Boy Scout Officials there ordered the mandatory evacuations of the scouts to an unknown place. [17] [4] [18] [5] The event was also attended by Neil Armstrong; however, the scouts are gone as the astronaut went there. [17] Later reports said that the scouts went to different sites such as temples, city halls, nearby schools, and the Self-Defense Force base. [17] The evacuation was hampered by tourist busses and tourists that went on Tokyo to see Prince Akihito; however, this was also canceled following the typhoon. [17]
As Olive battered Shizuoka Prefecture between October 8 and 10, torrential rains and gale-force winds destroyed some tents and the campsite was reported to be flooded and washed out. [17] [2] No deaths and injuries were reported throughout the event; however, this resulted in limited activities on the campground of the scouts, according to the headquarters of the Boy Scouts of America in New Brunswick. [17] [5]
Despite not making landfall at any part of South Korea, Olive caused damages on the southern coasts of the country. A rainfall amount of 390.8 mm and a total of 444.0 mm were recorded at Samcheok, Gangwon Province. [19] Ulleungdo recorded the lowest barometric pressure from the storm at 976.2 hPa and the fastest instantaneous wind speed from Olive, at 32.0 m/s. while Pohang reported the fastest wind speed, at 19.3 m/s. [19] Reports from different institutions and agencies, including Seoul's National Disaster Relief Center, said that Olive killed 27 in the country, all due to unknown reasons. [19] Flash floods and widespread landslides were also seen. [20]
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Tropical Storm Etau was the deadliest tropical cyclone to impact Japan since Typhoon Tokage in 2004. Forming on August 8, 2009 from an area of low pressure, the system gradually intensified into a tropical storm. Tracking in a curved path around the edge of a subtropical ridge, Etau continued to intensify as it neared Japan. By August 10, the cyclone reached its peak intensity as a weak tropical storm with winds of 75 km/h and a barometric pressure of 992 hPa (mbar). Shortly after, Etau began to weaken. Increasing wind shear led to the center becoming devoid of convection and the system eventually weakened to a tropical depression on August 13. The remnants of Etau persisted for nearly three days before dissipating early on August 16.
Typhoon Bart, known in the Philippines as Typhoon Oniang, was a powerful and destructive typhoon that occurred during the 1999 Pacific typhoon season. It was the only super typhoon of that year. Bart reached "super typhoon" status on September 22, when it grew to comprise winds containing a force of 260 km/h (160 mph).
Typhoon Flo, known in the Philippines as Typhoon Norming, was a long-lived typhoon that brought destruction to much of Japan during September 1990. Flo originated from an area of convection that first formed to the southeast of the Marshall Islands on September 7. Five days later, the disturbance obtained tropical depression status, and on September 13, intensified into a tropical storm. Tracking west-northwest as it rounded a subtropical ridge, Flo slowly deepened, and on September 15, became a typhoon. After developing an eye, Flo began to rapidly intensify, and on September 17, Flo attained peak intensity. Shortly thereafter, the typhoon began to recurve to the northeast towards Honshu in response to deepening troughs to the northwest and north of the system, which resulted in a weakening trend due to increased vertical wind shear despite remaining over warm water. On September 19, Flo made landfall on southern Honshu, becoming the first typhoon to hit the Kii Peninsula in 11 years, and thereafter started to transition into an extratropical cyclone. The extratropical remnants of Flo were last noted on the morning of September 22.
Typhoon Abby, known in the Philippines as Typhoon Diding, was an extremely powerful tropical cyclone which was the second typhoon to strike Japan within a span of a few days in August 1983. First noted southeast of Guam on July 31, development of this system was initially slow to occur; it was first classified on August 5, and was upgraded into a tropical storm the next day. Intensification was rapid as Abby slowly recurved northward on August 7 and 8. After reaching peak intensity with winds of 140 mph (225 km/h) early on August 9, Abby slowly weakened, though the storm briefly re-intensified on August 11. By August 14, winds had diminished to 100 mph (160 km/h). Abby finally weakened back into a tropical storm on August 17 not long after making landfall in Japan. The following day, Abby completed the transition to an extratropical cyclone after moving through central Japan. However, meteorologists continued monitoring the storm for six more days.
Typhoon Yancy, known in the Philippines as Typhoon Tasing, was one of the costliest and most intense tropical cyclones to strike Japan on record. Yancy was the sixth typhoon of the annual typhoon season and sixth tropical cyclone overall to impact Japan that year. Developing out of an area of disturbed weather in the open northwest Pacific on August 29, 1993, the precursor to Yancy tracked westward and quickly intensified to reach tropical storm strength on August 30. Just two days later, the tropical storm reached typhoon intensity as it recurved towards the northeast. A period of rapid intensification followed, allowing Yancy to quickly reach super typhoon intensity. The strong tropical cyclone reached peak intensity on September 2 with maximum sustained winds of 175 km/h (109 mph). The following day Yancy made its first landfall on Iōjima at nearly the same strength; over the course of the day the typhoon would make three subsequent landfalls on Japanese islands. Land interaction forced the tropical cyclone to weaken, and after its final landfall on Hiroshima Prefecture, Yancy weakened below typhoon intensity. After emerging into the Sea of Japan, Yancy transitioned into an extratropical cyclone; these remnants persisted as they meandered in the sea before dissipating completely on September 7.
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Typhoon Louise, known in Japan as the Akune Typhoon, was a deadly and destructive tropical cyclone that hit Japan in October 1945, soon after the cessation of World War II. It caused at least 377 deaths and another 74 missing persons, while leaving a wide swath of damage across the country.
Typhoon Ione was a catastrophic and deadly tropical cyclone that left over 512 confirmed deaths and another 326 to be missing as it affected Japan, with the majority of the fatalities coming from the city of Ichinoseki in Iwate Prefecture. It also left a significant trail of damage on the country, just after Typhoon Kathleen devastated the area. The fourteenth named storm and the ninth typhoon of the 1948 Pacific typhoon season, Ione was first seen in weather maps as a tropical storm near the Mariana Islands on September 11. It moved to the northwest, passing through the island country, before strengthening to a typhoon on September 13. It rapidly organized to a Category 4 typhoon and reached its peak intensity on the next day before slowly weakening as it started to approach the Japanese archipelago, while curving to the northeast. It then made landfall on September 16 between the present cities of Tateyama and Kisarazu in Chiba Prefecture as a minimal typhoon. It then passed through the southern coast of Hokkaido, before gradually degraded to a tropical storm as it emerged in the Pacific Ocean on the next day. It then became extratropical, shortly after.
Typhoon Gilda, known in the Philippines as Typhoon Deling was a destructive, deadly, costly and long-lived tropical cyclone that left over 145 confirmed deaths over Japan and South Korea, mostly due to torrential rainfall that induced landslides, all generated by the typhoon and its associated meiyu front. The eighth named storm and third typhoon of the 1974 Pacific typhoon season, the system was first noted by the China Meteorological Agency as an area of convection embedded on a trough, to the north of Enewetak Atoll on June 25. It was named Gilda on June 30 as it strengthened to a tropical storm. Under a favorable environment, it strengthened to a typhoon two days later as it moved northwestward. Another trough pulled Gilda poleward while changing less in intensity, until it intensified to a Category 2 typhoon as it battered the Ryukyu Islands at its peak. Increasing wind shear gradually weakened the system; however, it remained as a minimal typhoon until it passed through the southern tip of South Korea on July 6, where it weakened to a tropical storm. Colder waters in the Sea of Japan and high shear further degraded Gilda, until it transitioned to an extratropical low as it made landfall near Hokkaido on July 9. The remnants of the system briefly intensified near the Kuril Islands before weakening and dissipating on July 17 over the Sea of Okhotsk.
Typhoon Manny, known in the Philippines as Typhoon Naning, was a long-lived and deadly tropical cyclone that struck the Philippines during the 1993 Pacific typhoon season. It was the second typhoon to hit the Visayas, in the central Philippines, that year, following Kyle. The twenty-ninth named storm and fifteenth typhoon of the season, the system formed from a near-equatorial trough that also spawned Lola during the month in the east Caroline Islands on December 3. Moving northwestwards, it strengthened to a tropical storm on the next day before intensifying further to a severe tropical storm that night. The system attained typhoon status on December 8, while making an anticyclonic loop, nearly the same as Pamela, 11 years later. It then rapidly intensified while moving to the southwest, with the typhoon reaching its peak of 220 km/h (135 mph) and an unusually high barometric pressure of 960 mbar before crossing the central Philippines on December 10 and 11. It soon moved through the South China Sea as a tropical storm before weakening to a tropical depression as it encountered high wind shear. However, it restrengthened back to a tropical storm as it moved back again to a favorable environment before passing to the south of Vietnam as the system weakened back below gale-force winds. It then dissipated on December 16 as it passed through Thailand.