Typhoon Cora, known in the Philippines as Typhoon Ibiang was a moderately strong

typhoon A typhoon is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere. This region is referred to as the Northwestern Pacific Basin, and is the most active tropical cyclone basin on Earth, accounting for a ...

that caused significant impacts in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

and the Caroline Islands during the

1969 Pacific typhoon season The 1969 Pacific typhoon season was the fourth least-active season on record. The season had no official bounds; it ran year-round in 1969, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These ...

. Tropical Depression 09W formed on August 12, 1969, 2 days after Typhoon Betty (Huling) dissipated. The depression intensified into Tropical Storm Cora on August 14 and had later intensified into Typhoon Cora 4 days later. Cora made landfall in the

Ryukyu Islands The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni ...

on August 19 right after the storm intensified into Category 2 status.

Okinawa Island is the largest of the Okinawa Islands and the Ryukyu (''Nansei'') Islands of Japan in the Kyushu region. It is the smallest and least populated of the five main islands of Japan. The island is approximately long, an average wide, and has an ...

received minor damage. After making landfall in

Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...

–

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separ ...

, Cora transitioned into a extratropical state and finished on August 21. Cora dissipated on August 23, 1969.

Meteorological history

At 6:00 UTC, on August 12, 1969, the

Joint Typhoon Warning Center The Joint typhoon Warning Center (JTWC) is a joint United States Navy – United States Air Force command in Pearl Harbor, Hawaii. The JTWC is responsible for the issuing of tropical cyclone warnings in the North-West Pacific Ocean, South P ...

began to monitor a

tropical depression A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...

that had formed north of the Caroline Islands. Damaging most of the Caroline Islands, the tropical depression moved north, and on August 14, at 23:00 UTC, the storm intensified into a tropical storm with winds up to . Then the tropical storm was given the name ''Cora''. Tropical Storm Cora traveled into the Philippine Area of Responsibility and was designated as Tropical Storm Ibiang on August 16 at 23:00 UTC. After bringing rain to

the Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

and

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

, Cora left the Philippine Area of Responsibility and with winds up to , the storm intensified to

status at 11:00 UTC. A day later, on August 18, Typhoon Cora intensified into Category 2 status with winds up to . Soon after, Cora began to make a definite eye formation and finished the same day. As it made landfall in the

mainly (

Okinawa is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city ...

), Cora moved up to the island of Kyushū with winds up to at 23:00 UTC on August 20.

Honshū , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separa ...

received a downpour of rain from Typhoon Cora. Cora then began to transition into a extratropical state. Typhoon Cora finished on August 21 at 16:00 UTC. The extratropical cyclone moved up with winds up to . After crossing Honshū and producing rain, Cora dissipated near

Hokkaidō is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...

on August 23 at 05:00 UTC. Cora was the only typhoon that had impacted Japan that season and the second

tropical cyclone A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...

to impact Japan before Severe Tropical Storm Alice.

Preparations and impact

Before Typhoon Cora made landfall, there were up to 34 warnings and 15 of those were at typhoon intensity by the

and the

Japan Meteorological Agency The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation an ...

. As a tropical depression, Cora brought rainfall over the Caroline Islands, one of them being the Woleai Atoll. After intensifying into a Category 2 typhoon, Typhoon Cora struck the Ryukyu Islands with heavy rain and caused families within

low-lying coast At a flat coast or flat shoreline, the land descends gradually into the sea. Flat coasts can be formed either as a result of the sea advancing into gently-sloping terrain or through the abrasion of loose rock. They may be basically divided into t ...

s to flee. After causing minor damage, Typhoon Cora then killed one person and 37 people on the island of Okinawa on August 19. Before Cora's dissipation on the 23 of August, Cora left hundreds without homes and left police to help recover for the damage. Cora had also brought rain up to

and

before it dissipated on August 23.

References

External links

www.metoc.navy.milwww.jma.go.jpAn article about Typhoon Cora's structure.
{{DEFAULTSORT:Cora (1969) 1969 Pacific typhoon season Typhoons in Japan

Meteorological history

Preparations and impact

See also

References

External links