Cyclone Hudhud may hit north Andhra, Odisha by Oct 12: Met dept Priya Ranjan Sahu, Hindustan Times Bhubaneswar, October 08, 2014 First Published: 10:48 IST(8/10/2014) | Last Updated: 16:30 IST(8/10/2014) Bhubaneswar: A deep depression over the Bay of Bengal intensified into cyclonic storm Hudhud on Wednesday and may hit north Andhra Pradesh and adjoining Odisha by October 12 noon, according to the Met department. The Bhubaneswar centre of the Indian Meteorological Department said the deep depression moved west-northwestwards and lay centred at 8.30am over North Andman Sea and adjoining southeast Bay of Bengal, about 1150 km southwest of Gopalpur coast. “The system would continue to move west-northwestwards, intensifying further into a ‘severe cyclonic storm’ during the next 24 hours and subsequently into a ‘very severe cyclonic storm’ and cross north Andra Pradesh and adjoining Odisha between Vishakhapatnam and Gopalpur by October 12,” Sarat Sahu, director of IMD Bhubaneswar centre, said. Met department officials the Odisha might experience heavy rainfall on October 12 and October 13 due to the effect of Cyclone Hudhud (the name is of Omanian origin). They said fishermen had been asked to return to the coast. Chief minister Naveen Patnaik held a meeting to review the state’s preparedness for the cyclonic storm. “All preparations have been made to meet the situation. All concerned departments have been asked to make their contingency plans,” he said. On Tuesday, the Odisha government had asked all 30 districts of the state to remain on alert after a Met department forecast. The focus was more on 16 districts, including Ganjam that was hit by Cyclone Phailin in October last year. hindustantimes/india-news/andaman-sea-experiences-deep-depression-intensifies-into-cyclone/article1-1272879.aspx Naming systems It is not uncommon for more than one tropical cyclonic system to be present in a given ocean basin at any given time. To aid forecasters in identifying the systems and issuing warnings, tropical disturbances are given numbers. When a system intensifies to tropical storm strength, it is given a name. In the United States, names given to hurricanes during World War II corresponded to radio code names for the letters of the alphabet (such as Able, Baker, and Charlie). In 1953 the U.S. National Weather Service began to identify hurricanes by female names, and in 1978 a series of alternating male and female names came into use. The lists of names are recycled every six years—that is, the 2003 list is used again in 2009, the 2004 list in 2010, and so on. Names of very intense, damaging, or otherwise newsworthy storms are retired. Names that will not be used again include Gilbert, a 1988 category 5 hurricane that had the lowest central atmospheric pressure (888 millibars) ever recorded in the Atlantic. Also retired is Mitch, the name of a category 5 hurricane that stalled off the coast of Honduras for two days in 1998 before slowly moving inland, inundating Central America with heavy rain and causing mudslides and floods that took nearly 10,000 lives. Another notable storm whose name has been retired was Hurricane Ivan, which reached category 5 on three separate occasions during its long life cycle in September 2004. Ivan almost completely destroyed all agricultural infrastructure in Grenada, wrecked much of that year’s crops in Jamaica, leveled 1.1 million hectares (2.7 million acres) of timber in Alabama, and caused almost 100 deaths along its path. Pacific and Indian basin storms are named according to systems established by regional committees under the auspices of the World Meteorological Organization. Each region maintains its own list of names, and changes to the list (such as retiring a name) are ratified at formal meetings. Two or more lists of names are alternated each year for several regions, including the central North Pacific (i.e., the Hawaii region), the western North Pacific and South China Sea, the southern Indian Ocean west of 90° E, the western South Pacific Ocean, and Australia’s eastern, central, and northern ocean regions. In some areas, such as the northern Indian Ocean, tropical cyclones are given numbers instead of names. britannica/EBchecked/topic/606551/tropical-cyclone/247932/Naming-systems Tropical Cyclone Naming 1. Historical Background The practice of naming storms (tropical cyclones) began years ago in order to help in the quick identification of storms in warning messages because names are presumed to be far easier to remember than numbers and technical terms. Many agree that appending names to storms makes it easier for the media to report on tropical cyclones, heightens interest in warnings and increases community preparedness. Experience shows that the use of short, distinctive given names in written as well as spoken communications is quicker and less subject to error than the older more cumbersome latitude-longitude identification methods. These advantages are especially important in exchanging detailed storm information between hundreds of widely scattered stations, coastal bases, and ships at sea. In the beginning, storms were named arbitrarily. An Atlantic storm that ripped off the mast of a boat named Antje became known as Antjes hurricane. Then the mid-1900s saw the start of the practice of using feminine names for storms. In the pursuit of a more organized and efficient naming system, meteorologists later decided to identify storms using names from a list arranged alpabetically. Thus, a storm with a name which begins with A, like Anne, would be the first storm to occur in the year. Before the end of the 1900s, forecasters started using male names for those forming in the Southern Hemisphere. Since 1953, Atlantic tropical storms have been named from lists originated by the National Hurricane Center. They are now maintained and updated by an international committee of the World Meteorological Organization. The original name lists featured only womens names. In 1979, mens names were introduced and they alternate with the womens names. Six lists are used in rotation. Thus, the 2008 list will be used again in 2014. The only time that there is a change in the list is if a storm is so deadly or costly that the future use of its name on a different storm would be inappropriate for reasons of sensitivity. If that occurs, then at an annual meeting by the WMO Tropical Cyclone Committees (called primarily to discuss many other issues) the offending name is stricken from the list and another name is selected to replace it. Infamous storm names such as Katrina (USA, 2005), Mitch (Honduras, 1998) and Tracy (Darwin, 1974) are examples for this. 2. Procedure of Naming Tropical Cyclones There is a strict procedure to determine a list of tropical cyclone names in an ocean basin(s) by the Tropical Cyclone Regional Body responsible for that basin(s) at its annual/biennial meeting. There are five tropical cyclone regional bodies, i.e. ESCAP/WMO Typhoon Committee, WMO/ESCAP Panel on Tropical Cyclones, RA I Tropical Cyclone Committee, RA IV Hurricane Committee, and RA V Tropical Cyclone Committee. For instance, Hurricane Committee determines a pre-designated list of hurricane names for six years separately at its annual session. The pre-designated list of hurricane names are proposed by its members that include National Meteorological and Hydrological Services in the North/Central America and the Caribbean. Naming procedures in other regions are almost the same as in the Caribbean. In general, tropical cyclones are named according to the rules at a regional level. It is important to note that tropical cyclones/hurricanes are named neither after any particular person, nor with any preference in alphabetical sequence. The tropical cyclone/hurricane names selected are those that are familiar to the people in each region. Obviously, the main purpose of naming a tropical cyclone/hurricane is basically for people easily to understand and remember the tropical cyclone/hurricane in a region, thus to facilitate tropical cyclone/hurricane disaster risk awareness, preparedness, management and reduction. wmo.int/pages/prog/www/tcp/Storm-naming.html Cyclones A tropical cyclone is an intense low pressure area or a whirl in the atmosphere over tropical or sub-tropical waters, with organised convection (i.e. thunderstorm activity) and winds at low levels, circulating either anti-clockwise (in the northern hemisphere) or clockwise (in the southern hemisphere). From the centre of a cyclonic storm, pressure increases outwards. The amount of the pressure drop in the centre and the rate at which it increases outwards gives the intensity of the cyclones and the strength of winds. As per the criteria adopted by the World Meteorological Organisation (W.M.O.), India Meteorological Department classifies the low pressure systems in the Bay of Bengal and in the Arabian Sea into 7 classes. Low pressure areas with maximum sustained surface winds of speed between 31 & 61 km.p.h. (17 to 33 knots) are called tropical depressions. Once the winds around the low pressure area reach at least 62 km.p.h, it is called a tropical cyclone and is assigned a name. When wind speed is between 89 & 118 km.p.h (48 & 63 kt) it will be a Severe Cyclonic Storm (SCS), between 119 & 221 km.p.h (64 & 119 kt) it is Very SCS and when exceeds 221 km.p.h (119 knots), the cyclone is called a Super Cyclonic Storm. Kerala coast have been affected by low pressure systems upto the category of severe cyclonic storm (max. wind speed 118 km.p.h) How do cyclones form? Tropical cyclones require certain conditions for their formation. These are • A source of warm, moist air derived from tropical oceans with sea surface temperature normally near to or in excess of 27 °C • Winds near the ocean surface blowing from different directions converging and causing air to rise and storm clouds to form • Winds which do not vary greatly with height - known as low wind shear. This allows the storm clouds to rise vertically to high levels; • Coriolis force / spin induced by the rotation of the Earth. The formation mechanisms vary across the world, but once a cluster of storm clouds starts to rotate, it becomes a tropical depression. If it continues to develop it becomes a tropical storm, and later a cyclone/ super cyclone. Naming of Cyclones Tropical cyclones are named to provide ease of communication between forecasters and the general public regarding forecasts and warnings. Since the storms can often last a week or even longer and more than one cyclone can be occurring in the same region at the same time, names can reduce the confusion about what storm is being described. Names were first used in World War II and were subsequently adopted by all regions. In most regions pre-determined alphabetic lists of alternating male and female names are used. However, in the north-west Pacific the majority of names used are not personal names. While there are a few male and female names, majority are names of flowers, animals, birds, trees, foods or descriptive adjectives. By the mid-1960s names were used for all tropical storms except those in the North Indian Ocean . The names currently in use and those to be used in future years are listed. Various meteorological organisations have responsibility of naming them. The names of cyclones in Indian Seas are not allocated in alphabetical order, but are arranged by the name of the country which contributed the name. It is usual practice for a storm to be named when it reaches tropical storm strength (winds of 34 knots).The list of names to be used for the North Indian Seas is given below: The names selected for North Indian Ocean cyclones from 2004 onwards I II III IV Contributed by Name Name Name Name Bangladesh Onil Ogni (2006) Nisha(2008) Giri India Agni (2004) Akash Bijli Jal(2010) Maldives Hibaru Gonu Aila Keila Myanmar Pyarr Yemyin Phyan Thane(2011) Oman Baaz Sidr (2007) Ward (2009) Murjan Pakistan Fanoos (2005) Nargis Laila Nilam(2012) Sri Lanka Mala Rashmi Bandu Mahasen Thailand Mukda Khai-Muk Phet Phailin V VI VII VIII Contributed by Name Name Name Name Bangladesh Helen Chapala Ockhi Fani India Lehar(2013) Megh Sagar Vayu Maldives Madi Roanu Mekunu Hikaa Myanmar Na-nauk Kyant Daye Kyarr Oman Hudhud Nada Luban Maha Pakistan Nilofar Vardah Titli Bulbul Sri Lanka Priya Asiri Gigum Soba Thailand Komen Mora Phethai Amphan The names in the list are being used sequentially. The first name in any given year is the one immediately following the last name from the previous year. The year is included in parentheses after the last name used in that year. imdtvm.gov.in/index.php?option=com_content&task=view&id=15&Itemid=30 Birds in the Quran: Hoopoe The hoopoe (hud-hud) is an elegant bird, which is related to the hornbill. It gets its unusual name from its shrill call of “hoops, which rings clear and far and is repeated two or three times. Often the cry is cut off very short. This may be caused by the bird’s bill sharply striking the ground at the end of note. It is one of Old World nonpasserine birds. Its scientific name is “Upupaepops” (family Upupidae, of the roller order, Coraciiformes). King—fishers, bee—eaters, rollers, hoopoes and hornbills are collectively referred to a roller—like birds. There are about seven species of hoopoe. It is a widely distributed bird of British Isles, Europe, Asia, and northern Africa. It exists in the temperate and tropical regions of the Old World. This is a small bird about 12 inches long, the size of a large thrush or mynah, and has short legs with heavy feet and powerful claws. It has a handsome erectile semicircular crest (large crown of feathers tipped with black that constantly opens and closes on the head). This crest of black tipped feathers on the head is the most striking feature of the Hoopoe (hud-hud). It is colored fawn or cinnamon with black and white stripes on the back, wings and tail. The upper part of its body is a pale brown, with wings of black striped with white. The underparts are buff, streaked with black. The black tail has one broad stripe of white. These bands are clearly seen when the bird is in flight. The short legs it has are well adapted for walking. The tail too is not very long, black with a white central bar. The beak is long, slender and slightly down curved. It is long and fanshaped with feathers that increase in length from front to back. When feeding, the crest is closed. When alarmed or excited, the crest is unfurled and opens out like a fan. The hoopoe’s (hud-hud) call is soft and musical, repeated every couple of seconds. Because of this sound it makes the bird got its name in many languages. For example in English it becomes ‘hoopoe’, in Persian and Urdu it is “hud”. irfi.org/articles/articles_51_100/birds_in_the_quran.htm
Posted on: Wed, 08 Oct 2014 12:42:44 +0000