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Typhoon Yagi (2006)
Typhoon Yagi was an intense typhoon, the strongest of the 2006 Pacific typhoon season, which reached the equivalence of Category 5 on the Saffir–Simpson scale. Forming out of a tropical depression on September 16, Yagi quickly strengthened as it executed a slow clockwise loop over the open waters of the western Pacific Ocean. On September 19, Yagi strengthened into a typhoon as a subtropical ridge steered the storm towards the west. Two days later, the storm reached its peak intensity with winds of 10-minute winds with a minimum pressure of 910 hPa (mbar). The typhoon gradually weakened as it recurved towards the northeast and was downgraded to a severe tropical storm on September 24 and became extratropical the next day. The storm was last noted near the Aleutian Islands on September 27. The typhoon caused severe damage on the island of Chichijima but no injuries were reported as a result of the storm. Yagi is also tied with Glenda which became the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chichijima
, native_name_link = , image_caption = Map of Chichijima, Anijima and Otoutojima , image_size = , pushpin_map = Japan complete , pushpin_label = Chichijima , pushpin_label_position = , pushpin_map_alt = , pushpin_relief = , pushpin_map_caption = , map_custom = , nickname = , location = Pacific Ocean , coordinates = , archipelago = Ogasawara Islands , total_islands = , major_islands = , area_km2 = 23.45 , length_km = , width_km = , coastline_km = , highest_mount = , elevation_m = 326 , country = Japan , country_admin_divisions_title = Prefecture , country_admin_divisions = Tokyo , country_admin_divisions_title_1 = Subprefecture , country_admin_divisions_1 = Ogasawara Subprefecture , country_admin_divisions_title_2 = Village , country_admin_divisions_2 = Ogasawara , populati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Convection
Atmospheric convection is the result of a parcel-environment instability, or temperature difference layer in the atmosphere. Different lapse rates within dry and moist air masses lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to increased winds, cumulus cloud development, and decreased surface dew points. Moist convection leads to thunderstorm development, which is often responsible for severe weather throughout the world. Special threats from thunderstorms include hail, downbursts, and tornadoes. Overview There are a few general archetypes of atmospheric instability that are used to explain convection (or lack thereof). A necessary (but not sufficient) condition for convection is that the environmental lapse rate (the rate of decrease of temperature with height) is steeper than the lapse rate experienced by a rising parcel of air. When this condition is met, upward-displaced air parcels can become buoyant and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2006 In Japan
Events in the year 2006 in Japan. Incumbents * Emperor: Akihito * Prime Minister: Junichiro Koizumi ( L–Kanagawa) to September 26 Shinzō Abe (L–Yamaguchi) * Chief Cabinet Secretary: Shinzō Abe (L–Yamaguchi) to September 26 Yasuhisa Shiozaki (L–Ehime) * Chief Justice of the Supreme Court: Akira Machida to October 15 Nirō Shimada from October 16 * President of the House of Representatives: Yōhei Kōno (L–Kanagawa) * President of the House of Councillors: Chikage Ōgi (L–proportional) * Diet sessions: 164th (regular, January 20 to June 18), 165th (extraordinary, September 26 to December 19) Governors *Aichi Prefecture: Masaaki Kanda *Akita Prefecture: Sukeshiro Terata *Aomori Prefecture: Shingo Mimura *Chiba Prefecture: Akiko Dōmoto *Ehime Prefecture: Moriyuki Kato *Fukui Prefecture: Issei Nishikawa *Fukuoka Prefecture: Wataru Asō *Fukushima Prefecture: ** until 28 September: Eisaku Satō ** 28 September-12 November: Akira Kawate ** starting 12 November: Yū ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhoons In Japan
Japan is one of the countries frequently hit by typhoons. Since recording started in 1951, an average of 2.6 typhoons reached the main islands of Kyushu, Shikoku, Honshu and Hokkaido per year. Approximately 10.3 typhoons approach within the 300 kilometer range near the coast of Japan. Okinawa is, due to its geographic location, most vulnerable to typhoons with an average of 7 storms per year. The most destructive was Isewan Typhoon with 5,000 casualties in the Tokai region in September 1959. In October 2004, Typhoon Tokage caused heavy rain in Kyushu and central Japan with 98 casualties. Until the 1960s the death toll was hundreds of people per typhoon. Since the 1960s improvements in construction, flood prevention, high tides detection and early warnings substantially reduced the death toll which rarely exceeds a dozen people per typhoon. Japan also has special search and rescue units to save people in distress. Special names of typhoons by JMA The JMA assigns special names to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhoon Nuri (2014)
Typhoon Nuri, known in the Philippines as Typhoon Paeng, was the third most intense tropical cyclone worldwide in 2014. Nuri developed into a tropical storm and received the name ''Paeng'' from the PAGASA on October 31, before it intensified into a typhoon on the next day. Under excellent conditions, especially the synoptic scale outflow, Nuri underwent rapid deepening and reached its peak intensity on November 2, forming a round eye in a symmetric Central dense overcast (CDO). Having maintained the impressive structure for over one day, the typhoon began to weaken on November 4, with a cloud-filled eye. Because of increasing vertical wind shear from the mid-latitude westerlies, Nuri lost the eye on November 5, and deep convection continued to diminish. The storm accelerated northeastward and completely became extratropical on November 6. However, on November 7, Nuri's circulation split, and the new center absorbed the storm. Meteorological history A low-pressure area formed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timeline Of The 2006 Pacific Typhoon Season
The 2006 Pacific typhoon season was a below-average season that produced a total of 23 named storms, 15 typhoons, and six super typhoons. The season ran throughout 2006, though most tropical cyclones typically develop between May and October. The season's first named storm, Chanchu, developed on May 9, while the season's last named storm, Trami, dissipated on December 20. Despite being below-average and having the same number of named storms like the previous season, this season was costlier and deadlier, as several tropical cyclones affected land areas. Moreover, this season featured typhoons which made landfall at a higher intensity, with the ratio of intense typhoons at 0.73, the highest since 1970. China was hit by several storms, with Tropical Storm Bilis and Typhoon Saomai being the most notable. Bilis became the costliest typhoon of the season, with damage totals at $4.4 billion (2006 USD); it also became the second-deadliest storm of the season, killing at least 800. Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhoon 16W (Yagi) 2006-09-22 23-30
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 almost one-third of the world's annual tropical cyclones. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern (North America to 140°W), central (140°W to 180°), and western (180° to 100°E). The Regional Specialized Meteorological Center (RSMC) for tropical cyclone forecasts is in Japan, with other tropical cyclone warning centers for the northwest Pacific in Hawaii (the Joint Typhoon Warning Center), the Philippines, and Hong Kong. Although the RSMC names each system, the main name list itself is coordinated among 18 countries that have territories threatened by typhoons each year. Within most of the northwestern Pacific, there are no official typhoon seasons as tropical cyclones form thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Date Line
The International Date Line (IDL) is an internationally accepted demarcation on the surface of Earth, running between the South and North Poles and serving as the boundary between one calendar day and the next. It passes through the Pacific Ocean, roughly following the 180° line of longitude and deviating to pass around some territories and island groups. Crossing the date line eastbound decreases the date by one day, while crossing the date line westbound increases the date. Geography Circumnavigating the globe People traveling westward around the world must set their clocks: *Back by one hour for every 15° of longitude crossed, and *Forward by 24 hours upon crossing the International Date Line. People traveling eastward must set their clocks: *Forward by one hour for every 15° of longitude crossed, and *Back by 24 hours upon crossing the International Date Line. Failing to do this would make their time inaccurate to the local time. The Arab geographer Abulfed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone Formation Alert
A Tropical Cyclone Formation Alert (TCFA) is a bulletin released by the U.S. Navy-operated Joint Typhoon Warning Center in Honolulu, Hawaii or the Fleet Weather Center in Norfolk, Virginia, warning of the possibility of a tropical cyclone forming from a tropical disturbance that has been monitored. Such alerts are generally always issued when it is fairly certain that a tropical cyclone will form and are not always released before cyclone genesis, particularly if the cyclone appears suddenly. The TCFA consists of several different checks that are performed by the on-duty meteorologist of the system and its surroundings. If the condition being checked is met, a certain number of points are given to the system. Parts of the TCFA Section 1 The first section of the TCFA contains information on the area of the alert as well as the estimated center of the circulation. The estimated maximum sustained winds are provided as well. Section 2 The second section generally contains more specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Pacific Ocean, and Indian Ocean for all branches of the U.S. Department of Defense and other U.S. government agencies. Their warnings are intended for the protection of primarily military ships and aircraft as well as military installations jointly operated with other countries around the world. Its U.S. Navy components are aligned with the Naval Meteorology and Oceanography Command. History The origins of the Joint Typhoon Warning Center (JTWC) can be traced back to June 1945, when the Fleet Weather Center/Typhoon Tracking Center was established on the island of Guam, after multiple typhoons, including Typhoon Cobra of December 1944 and Typhoon Connie in June 1945, had caused a significant loss of men and ships. At this time the center ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anticyclone
An anticyclone is a weather phenomenon defined as a large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere as viewed from above (opposite to a cyclone). Effects of surface-based anticyclones include clearing skies as well as cooler, drier air. Fog can also form overnight within a region of higher pressure. Mid-tropospheric systems, such as the subtropical ridge, deflect tropical cyclones around their periphery and cause a temperature inversion inhibiting free convection near their center, building up surface-based haze under their base. Anticyclones aloft can form within warm-core lows such as tropical cyclones, due to descending cool air from the backside of upper troughs such as polar highs, or from large-scale sinking such as a subtropical ridge. The evolution of an anticyclone depends upon variables such as its size, intensity, and extent of moist con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Shear
Wind shear (or windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as either vertical or horizontal wind shear. Vertical wind shear is a change in wind speed or direction with a change in altitude. Horizontal wind shear is a change in wind speed with a change in lateral position for a given altitude. Wind shear is a microscale meteorological phenomenon occurring over a very small distance, but it can be associated with mesoscale or synoptic scale weather features such as squall lines and cold fronts. It is commonly observed near microbursts and downbursts caused by thunderstorms, fronts, areas of locally higher low-level winds referred to as low-level jets, near mountains, radiation inversions that occur due to clear skies and calm winds, buildings, wind turbines, and sailboats. Wind shear has significant effects on the control of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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