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When was Sakuhei Fujiwhara born?
Sakuhei Fujiwhara was born on 1884-10-29.
When did Sakuhei Fujiwhara die?
Sakuhei Fujiwhara died on 1950-09-22.
Have 2 hurricanes ever merged before landfall?
From the reference: No, it's actually impossible for two or more hurricanes to merge together. But if two hurricanes or tropical storms do come close together, they can interact with one another. Their close proximity may weaken one or both of the storms. Or they may begin circling around each other. This is called the Fujiwhara effect, named after a Japanese meteorologist who first explained the phenomenon. 5 days ago Source(s): http://www.wxdude.com/tropical.html
What happens when a cyclone and hurricane collides?
A tornado and a hurricane don't exactly meet as they occur on completely different scales. A hurricane is its own large-scale storm system while a tornado is a small-scale phenomenon that occurs within a larger system. Hurricanes often produce tornadoes. Such tornadoes behave more or less like those produced by other systems.
What are the typhoons name in the Philippines in 2010?
1.Tropical Storm Agaton On March 18, the JTWC reported that an area of deep atmospheric convection had persisted about 325 km (200 mi) to the southeast of Chuuk Island in southern Micronesia. At this stage the poorly organised deep convection was located over a low level circulation center and was in an area of low wind shear.Over the next couple of days both the low level circulation center and the deep convection gradually became better organized, prompting the issuance of a tropical cyclone formation alertlate on March 20. During the next day convection continued to build over the low level circulation center, which became well defined whilst moving around thesubtropical ridge.[29] The JTWC then initiated advisories on the system later that day, designating it as Tropical Depression 02W, although the JMA did not designate the system as a tropical depression until early on March 22. During March 22 further development of the system was hampered by an anticyclone to the east of the system that caused moderate to strong wind shear.] Early of the next day, JTWC upgraded the depression into a tropical storm, and on 24 March JMA upgraded it to Tropical Storm Omais, the first of the season. Late on March 25, the JTWC downgraded Omais to tropical depression strength. Tropical Depression Omais re-gained tropical storm status late on March 26 as it was becoming extratropical.No Public Warning Storm has been raised. 2.Tropical Depression On April 24, an area of low pressure had been formed about 140 km (85 mi) to the west of Palau Island .[33] On the next day, the disturbance start to move westward. On the same time, the disturbance suddenly strengthened and its LLCC began to consolidate as well as significant banding all over the system and located over moderate vertical wind shear. Early of April 26, the disturbance rapidly strengthen again and was starting to be enhanced by a Tropical Upper Tropospheric Trough(TUTT) cell to the northeast of the system, whilst the JMA upgraded it into a tropical depression. Later that day, the depression made landfall over Davao City and Surigao del Sur boundary and crossed central Mindanao. Early on April 27, JMA downgraded the depression into an area of low pressure while it was located in vicinity of Sulu Island. In the next couple of days the low pressure start to move northwest towards South China Sea.No Public Warning Storm has been raised but heavy rain has been produced in Southern Luzon including Metro Manila,Central and Eastern Visayas. 3.Typhoon Basyang Typhoon Basyang, developed into a tropical depression early on July 11 before rapidly developing into the second tropical storm of the season and named as Conson during the next day. During that afternoon Conson, kept intensifying before the JMA reported that Conson had reached its initial ten-minute peak sustained wind speeds of 110 km/h (75 mph), which made it a severe tropical Storm on the JMA's scale. Later that day, the JTWC reported that Conson had intensified into a typhoon before reporting early on July 13 the next day that it had reached its initial one-minute peak sustained wind speeds of 110 km/h (75 mph) which made it a Category 1 typhoon on the Saffir Simpson Hurricane Scale. During July 13, Conson started to started to weaken as it interacted with the Philippines before it made landfall near General Nakar, Quezon. Whilst over the Philippines Conson moved towards the west and passed over Manila before moving into the South China Sea early on July 14. During that day Conson weakened further under the influence of high vertical wind shear before during the next day the vertical wind shear weakened slightly. As a result Conson intensified over the South China Sea and became a typhoon early on July 16, with the JMA reporting ten-minute peak sustained wind speeds of 130 km/h (80 mph), whilst the JTWC reported peak one minute wind speeds of 150 km/h (90 mph) later that day as it passed closed to Hainan Island. After passing close to Hainan island, Conson moved into an area with high levels of vertical wind shear and as a result it rapidly weakened into a tropical storm, before making landfall in Vietnam during July 17. On the morning of July 13, DEPED suspended all elementary and preschool classes in Me Late on August 2, PAGASA reported that a low pressure area had formed within theIntertropical convergence zone about 570 km to the northeast of Virac, Catanduanes.[53] Early the next day PAGASA reported that the low pressure area had intensified into a tropical depression and named it as Domeng.[54] During that day Domeng interacted with another low pressure area which was located to the north of the system, before merging with it early on August 4. After Domeng, had merged with the low pressure area PAGASA reported that Domeng had intensified into a tropical storm and reached its 10-minute peak sustained windspeeds of 65 km/h (40 mph). Later that day PAGASA reported that Domeng had weakened into a tropical depression, before reporting early the next day that after it had passed through the Babuyan Islands, Domeng had weakened into an area of low pressure. In Luzon, heavy rain produced by the storm led to a few landslides, prompting road closures. Offshore, three people drowned after their boat capsized amidst rough seas produced by Domengtro Manila and some other provinces. All flights were canceled due to heavy rains and strong winds brought by Conson. Severe flooding was also reported in Bicol Region. In addition, Conson sank three fishing vessels in the province of Catanduanes, Philippines. JTWC's 6:00 bulletin indicated that Conson would be passing through Metro Manila at about 2 or 3 in the morning the following day, which it did. By late evening, Conson began its westerly path towards the direction of Metro Manila. Heavy rains and strong winds battered the Metropolis throughout the night. By 11 pm, PAGASA raised storm warning in the Metro to Signal number two. At 12:42 am, Meralco cut off power supplies to Metro Manila and nearby areas amidst various reports that billboards fell through power lines around the area; as much as 12 million people in Metro Manila alone still have their power services restored by the afternoon. At least twenty-six people were killed, and 38 were left missing in the Philippines as a result of the storm.[42][43] The province of Laguna was placed under a state of calamity as a result of the storm. An estimated P47 million worth of agricultural products were damaged in the province. On July 16, the National Disaster Coordinating Council has revised the death toll to 38.[44] The power outage also rendered the PAGASA website offline. 4.Typhoon Caloy Early on July 17, the JMA reported that a tropical depression had developed about 220 km (135 mi) to the northeast of Manila, Philippines.[45] Later that day the JTWC reported that the depression had a small low level circulation center with deep convection flaring to the northeast of the center. However as the low level circulation center was located close to land and was not very organized, the JTWC declared that there was a poor chance of it becoming a significant tropical cyclone within 48 hours. However during that day, the depression rapidly consolidated with an anticyclone helping to develop the low level circulation center. As a result early the next day the JTWC issued a tropical cyclone formation alert on the depression, however they thought that further development might be hindered as it was located close to land. Whilst it moved along the southern edge of the subtropical ridge, the Depression made landfall on Aurora province at 0600 UTC, before the JTWC initiated advisories later that morning, as the low level circulation center had consolidated and poleward outflow into the tropical upper tropospheric trough had improved. Late on July 19, PAGASA issued their last advisory on Tropical Storm Caloy as it had moved out of their Area of Responsibility. 5.Tropical Storm Domeng Late on August 2, PAGASA reported that a low pressure area had formed within theIntertropical convergence zone about 570 km to the northeast of Virac, Catanduanes.[53] Early the next day PAGASA reported that the low pressure area had intensified into a tropical depression and named it as Domeng.[54] During that day Domeng interacted with another low pressure area which was located to the north of the system, before merging with it early on August 4. After Domeng, had merged with the low pressure area PAGASA reported that Domeng had intensified into a tropical storm and reached its 10-minute peak sustained windspeeds of 65 km/h (40 mph). Later that day PAGASA reported that Domeng had weakened into a tropical depression, before reporting early the next day that after it had passed through the Babuyan Islands, Domeng had weakened into an area of low pressure. In Luzon, heavy rain produced by the storm led to a few landslides, prompting road closures. Offshore, three people drowned after their boat capsized amidst rough seas produced by Domeng 6.Tropical Storm Ester Early on August 6, the JTWC reported that a tropical disturbance formed within the monsoon gyre about 800 km (500 mi) southeast of Taipei, Taiwan. Later that day PAGASA reported that the disturbance had developed into a tropical depression and named it as Ester, before the JTWC issued a tropical cyclone formation alert early the next day. During that day the JMA started to monitor the depression before the JTWC designated it as Tropical Depression 05W. The depression was then upgraded into a tropical storm by the JMA and named "Dianmu", the mother of lightning in Chinese folklore, with the JTWC following suit soon after. Early the next day, the JMA further upgraded the tropical storm into a severe tropical storm. After moving northward for several days, it turned northeastward and struck southern South Korea. Dianmu weakened as it crossed the Korean peninsula and emerged into the Sea of Japan Heavy rains produced by the storm resulted in one fatality after a cargo ship sank amidst rough seas produced by the storm.[56] In South Korea, at least three people were killed by Dianmu in flood-related incidents. This marked the first time in nine years that a rain-related fatality took place in the capital city of Seoul.[57] More than 3,000 homes were destroyed in eastern China after heavy rains from the outer bands of Dianmu struck the region.[58] Later reports stated that five people had been confirmed to have died as a result of Dianmu in South Korea.[59] The storm made landfall on Japan; exiting the country within five hours. Heavy rains were reported through out the islands. 7.Tropical Storm Florita Early on August 25, an area of low pressure formed about 415 km (260 mi), to the east of Cagayan, Philippines. The low pressure is located in an area of low vertical wind shear and a favorable environment. On the same time, a Tropical upper tropospheric trough (TUTT) was located in the east of the system. On the next day, the disturbance started to move west and later crossed the island of Luzon but on the next day, the circulation became slightly disorganized due to dry air. Later that afternoon, the Japan Meteorological Agency (JMA) upgraded the disturbance to a tropical depression and the Joint Typhoon Warning Centre (JTWC) issued a Tropical Cyclone Formation Alert (TCFA) which was later upgraded to a tropical depression. On August 28, the JMA upgraded the system to a Tropical Storm and was named "Lionrock". On the next couple of days, Lionrock remains almost stationary in South China Sea. On August 31, Lionrock start to move northeast slowly due to interaction with tropical storm Namtheun. Early of September 1, Lionrock made a Fujiwhara effect with Namtheun, whilst Lionrock maintained it's strength while Namtheun was absorbed. Lionrock made landfall on the east coast of Guangdong Province, China, just north of the city of Shantou. It then started to dissipate and weaken into a tropical storm and moved over Guangzhou, Guangdong's capital. Lionrock soon lost it's intensity as it went over Guangdong, and on the September 3, the storm had turned into a low pressure area. 8.Typhoon Glenda On early August 27, an area of low pressure formed about 305 km (200 mi) to the east of Yap Island. At that time, the system was disorganized due to high vertical wind shear. On the next day, the system started to move northwest and crossedGuam island. On the evening of that day, the system was located about 370 km (250 mi) northwest of Guam. At that time, the system experienced low vertical windshear and was located in a favorable environment. A Tropical Upper Tropospheric Trough (TUTT) was located to the east of the system. At that time, the Japan Meteorological Agency (JMA) upgraded the system into a tropical depression. Midday of August 29, the Joint Typhoon Warning Centre (JTWC) issued a Tropical Cyclone Formation Alert (TCFA) on the system as the Low Level Circulation Centre had become organized. On the morning of that same day, the JTWC announced that the system had quickly developed into a tropical storm and assigned the designation "08W". Intensification continued, then by midday of August 30, the JMA reported that the depression had intensified into a tropical storm and assigned it the international designation "Kompasu". In addition, PAGASA also announced that the low pressure in the northeast of Batanes had formed and assigned it a local name, "Glenda". After six hours, the JMA reported that Kompasu had intensified rapidly into a severe tropical storm. At the same time, the JTWC also upgraded Kompasu into a category 1 typhoon. On the next day, Kompasu crossed the island of Kadena and rapidly intensified into a category 2 typhoon equivalent. On September 1, Kompasu was upgraded by JTWC as a category 3 typhoon equivalent, becoming the 3rd strongest typhoon of the season at the time. The storm later weakened to a category one typhoon in the Yellow Sea, before veering northeast and making landfall on Ganghwa Island, northwest of Incheon and Seoul, killing at least four people.[65] Kompasu was the strongest tropical storm to hit the Seoul metropolitan areain 15 years.[66] Kompasu weakened to a tropical storm over the Sea of Japan on September 2. 9.Tropical Storm Henry Henry started out as a tropical depression wardering around the Western Pacific. It moved into the Philippine Area of Responsibility and was given the name Henry. It remained for a depression for two days before it strengthened in to a tropical storm and was given the name Malou. Malou drifted over the Ryukyu Islands and became a severe tropical storm. After passing through Ryukyu Islands, Malou was expected to make a landfall on Jeju Island; instead, it turned northeast and landed on Tsushima Island as a tropical storm on September 7. It then moved along the coast of Honshū and made another landfall near Tsuruga, Fukui Prefecture, Japan on September 8. After the second landfall, Malou weakened into a tropical depression over Shizuoka Prefecture. Nevertheless, it lingered over Kantō region and caused heavy rain in Greater Tokyo Area[69] until it transitioned into a polar low on September 10. Off the northeastern coast of china, an oil rig was knocked on a 45 degree angle by large waves produced by Tropical Storm Malou. The severe tilting sent 32 workers overboard; 30 of these workers were quickly rescued but the remaining two remain missing. In Japan, Henry produced record heavy rains, exceeding 100 mm (3.9 in) per hour, resulting in severe flash flooding. Several rivers burst their banks and inundated nearby areas. A few bridges were destroyed; however, no loss of life took place. The rains also brought an end to one of the hottest and longest heat waves in Japanese history. Southwest of Tokyo, roughly 10,000 people were advised to evacuate their homes due to the threat of dangerous flash floods and landslides. 10.Typhoon Inday Early on September 14, the JMA reported that a tropical depression had formed east of Taiwan. The Joint Typhoon Warning Center soon designated the depression as 12W with PAGASA naming it Inday shortly thereafter. Later on the same day, the tropical depression was upgraded to a tropical storm and was officially given the name Fanapi by the JMA. On September 16, the storm further intensified into a severe tropical storm. That same day, the JMA further upgraded it into a typhoon. Fanapi turned west and intensified into a category 1 typhoon that night. On the following day, the storm further intensified into a category 2 typhoon. On September 18, the storm further intensified to a Category 3 typhoon and moved straight into Taiwan. It made landfall in Hualien County at 8:40 a.m. (10.40am AEST) on September 19, with winds of 162 kilometres (101 mi) and across the island at a speed of 20 km/h Shortly after its landfall, it moved south and again turned east and rapidly weakened into a Severe Tropical Storm. It had Category 1 equivalent strength at that time. At 06:00 PM (Local time), the typhoon went back into the ocean. Post Storm Analysis proved that the system stayed on land for 9 hours approximately. The system made its second landfall at Zhangpu County, Zhangzhou, Fujian province, China, at Category 1 intensityThe storm caused large scale damage to Taiwan. In the early hours of September 21, Fanapi weakened into a tropical depression over Guangdong Province, and the next day dissipated completely over eastern China on September 22. 11.Typhoon Juan Late on October 12, the JMA reported that a tropical depression had formed to the west of Guam.[83] During October 13, the JTWC designated the tropical depression as 15W.[84] Later that day, the JMA and the JTWC reported that the depression had intensified into a tropical storm and named it as Megi.[85] [86] On October 15, The JTWC reported that the storm had intensified into a category 2 typhoon, but the JMA were only monitoring the system as a Severe Tropical Storm.[87] [88] Later that day, the JMA reported that the storm strengthened into a typhoon.[89] Early on October 16 the system entered the Philippine Area of Responsibility and the PAGASA began to issue advisories on Megi, giving it the local designation of "Juan".[90] That same day, Megi continued to intensify and was upgraded by the JTWC to a category 3 typhoon. Early on October 17, the JTWC reported that Megi had intensified into a category 5 super typhoon- the first super typhoon of the season and the first since Nida in November 2009. In the night of October 17, the intensity of Megi strengthened to 895 hPa (mbar), making Megi the strongest typhoon since Typhoon Yuri in 1991, and the first Pacific typhoon to reach lower than 900 hPa (mbar) in the 21st century and the first to do so anywhere in the world since Hurricane Wilma in the Atlantic in 2005. It was also the first tropical cyclone in the 21st century to have one-minute sustained winds of 190-mph, and the first since Hurricane Allen in the Atlantic in 1980. In the morning of October 18, Megi continued to intensify to 885 hPa (mbar), making Megi the ninth strongest tropical storm overall. It made landfall at that intensity, becoming one of the most intense landfalling storms ever recorded anywhere in the world. Over Luzon, the typhoon weakened. It reached the South China Sea and then turned to the north. Megi reintensified but high wind shear started to take its toll on the typhoon, but its eye diameter significantly increased. On October 22, Typhoon Megi weakened to a category two, later a category one by colder SST. Megi lost its eyewall structure and weakened to a severe tropical storm in Taiwan Strait, made landfall in Zhangpu County, Zhangzhou, Fujian province, China,[17] and later weakened to a tropical storm on October 23. Early on October 24, it further dissipated to a tropical depression before dissipating completely, several hours later. 12.Typhoon Katring Early on October 20, the Japan Meteorological Agency (JMA) upgraded an area of low pressure into a tropical depression.[94] Later that day, the JMA reported that the tropical depression slightly intensified.[95] The next day, the Joint Typhoon Warning Center started monitoring the system as tropical depression 16W.[96] On October 23, the system entered the Philippine Area of responsibility and the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) started monitoring the system as Tropical Depression "Katring"[97] On October 24, the JMA and JTWC upgraded the tropical depression into a tropical storm and the JMA named it "Chaba".[98][99] On October 25, the JMA further upgraded the storm into a Severe Tropical Storm.[100] Later that day, the JTWC upgraded the storm into a Category 1 Typhoon. Early on October 26, the JMA further upgraded the storm into a Typhoon.Early on October 27, the JTWC upgraded the typhoon into a Category 2 Typhoon.The following day the JTWC upgraded the system into a Category 4 Typhoon, but soon after weakened back to a Category 3. Late on October 29, the JMA had downgraded the typhoon into a Severe Tropical Storm while the JTWC downgraded it into a Category 1 Typhoon.] Early on October 30, the JTWC reported that Chaba had transitioned into anextratropical cyclone.[108] During the afternoon of October 30, the JMA downgraded Chaba to a remnant low as passed near Japan. The remnants of Chaba continued to weaken rapidly as it slowly moved northwest, until it dissipated completely on October 31.
