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The so-called Bombay Cyclone of 1882 or Great Bombay Cyclone is a hoax (or otherwise fictitious) historical event. Supposedly, the cyclone struck Bombay on 6 June 1882. Though it is widely reported, even in scientific literature, historical research shows that it did not in fact happen.
Reportedly, the earliest mention of the supposed cyclone so far discovered by researchers is in an article entitled 'Hurricane second only to tornado in wind violence' by M. Hall in the American newspaper The Nashua Telegraph published on 17 September 1947, followed by a piece by one B. Chester, 'Earthquakes, tidal waves cause historic disasters' from The Evening Independent of 31 March 1964. [1] [2] : 2358
The cyclone is mentioned in academic literature from at least 1976. [3] An entry in the 2008 edition of the Encyclopedia of Hurricanes, Typhoons, and Cyclones by David Longshore states:
The Great Bombay Cyclone of June 6, 1882: One of few truly great Indian cyclones to have formed over the Arabian Sea, the Great Bombay Cyclone--engorged with 110-MPH (177-km/h) winds and an 18-foot (6-m) surge--reportedly claimed more than 100,000 lives when it came ashore at Bombay right before daybreak. [4]
A 2014 academic article claims that: 'the deadliest storm surge of Arabian sea was Great Bombay Cyclone, took place in 1882 causing 100,000 causalities[ sic ]. It is one of ten deadliest tropical cyclones of the known history of the world'. [5] Another account, published in 2017, says that
the city of Bombay was all but destroyed by a monster cyclone that slammed into the Maharashtra region on June 6th 1882. This was one of the few great storms to emerge from the Arabian Sea. The super storm covered an enormous area as it came ashore at dawn bringing with it 110 mile per hour winds and an 18 foot tidal surge that inundated much of the region around Bombay ... The resultant winds, flooding and damage to buildings killed more the 100,000 people. [6]
It appears in other academic literature besides: some further examples are referenced here. [7] [8] [9] As of December 2015, research noted, it was also reported as fact in Wikipedia [1] (a 2019 study also made the same claim, but the claim was by this time untrue). [2] : 2357
Research into newspapers, meteorological records, and weather reports shows no contemporary record of the event. [10] [1] [11] [2] If a storm of anything like the reported magnitude had happened, it would have killed about an eighth of Bombay's population, and would have been widely reported. There does appear to have been a storm with heavy rain and strong winds on 4 June 1882, but it does not answer to descriptions of the supposed cyclone of 6 June. Bombay's biggest cyclone event of the nineteenth century in fact appears to have been 'in 1854, when "property valued at half-a-million pounds sterling" was destroyed in four hours and a thousand people were killed'. [12]
A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves.
This is a list of meteorology topics. The terms relate to meteorology, the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting.
The 1910 Atlantic hurricane season was the period during the summer and fall of 1910 in which tropical cyclones formed in the North Atlantic Ocean. The season was fairly inactive, with only five storms; however, three grew into hurricanes and one became a major hurricane. The season got off to a late start with the formation of a tropical storm in the Caribbean Sea on August 23. September saw two storms, and the final tropical cyclone—Hurricane Five—existed during October. All but one of the storms made landfall, and the only cyclone which remained at sea had some effects on the island of Bermuda.
In the Indian Ocean north of the equator, tropical cyclones can form throughout the year on either side of India, although most frequently between April and June, and between October and December.
The years before 1890 featured the pre-1890 North Indian Ocean cyclone seasons. Each season was an event in the annual cycle of tropical cyclone formation. The North Indian tropical cyclone season has no bounds, but they tend to form between April and December, peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. Below are the most significant cyclones in the time period. Because much of the North Indian coastline is near sea level and prone to flooding, these cyclones can easily kill many with storm surge and flooding. These cyclones are among the deadliest on earth in terms of numbers killed.
The Great Barbados hurricane was an intense Category 4 hurricane that left cataclysmic damage across the Caribbean and Louisiana in 1831.
A tropical cyclone forecast model is a computer program that uses meteorological data to forecast aspects of the future state of tropical cyclones. There are three types of models: statistical, dynamical, or combined statistical-dynamic. Dynamical models utilize powerful supercomputers with sophisticated mathematical modeling software and meteorological data to calculate future weather conditions. Statistical models forecast the evolution of a tropical cyclone in a simpler manner, by extrapolating from historical datasets, and thus can be run quickly on platforms such as personal computers. Statistical-dynamical models use aspects of both types of forecasting. Four primary types of forecasts exist for tropical cyclones: track, intensity, storm surge, and rainfall. Dynamical models were not developed until the 1970s and the 1980s, with earlier efforts focused on the storm surge problem.
Tropical cyclogenesis is the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropical cyclogenesis occurs are distinctly different from those through which temperate cyclogenesis occurs. Tropical cyclogenesis involves the development of a warm-core cyclone, due to significant convection in a favorable atmospheric environment.
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. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean. In the Indian Ocean, south Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms".
Traditionally, areas of tropical cyclone formation are divided into seven basins. These include the north Atlantic Ocean, the eastern and western parts of the northern Pacific Ocean, the southwestern Pacific, the southwestern and southeastern Indian Oceans, and the northern Indian Ocean. The western Pacific is the most active and the north Indian the least active. An average of 86 tropical cyclones of tropical storm intensity form annually worldwide, with 47 reaching hurricane/typhoon strength, and 20 becoming intense tropical cyclones, super typhoons, or major hurricanes.
The effects of tropical cyclones include heavy rain, strong wind, large storm surges near landfall, and tornadoes. The destruction from a tropical cyclone, such as a hurricane or tropical storm, depends mainly on its intensity, its size, and its location. Tropical cyclones remove forest canopy as well as change the landscape near coastal areas, by moving and reshaping sand dunes and causing extensive erosion along the coast. Even well inland, heavy rainfall can lead to landslides in mountainous areas. Their effects can be sensed over time by studying the concentration of the Oxygen-18 isotope within caves.
Tropical cyclone forecasting is the science of forecasting where a tropical cyclone's center, and its effects, are expected to be at some point in the future. There are several elements to tropical cyclone forecasting: track forecasting, intensity forecasting, rainfall forecasting, storm surge, tornado, and seasonal forecasting. While skill is increasing in regard to track forecasting, intensity forecasting skill remains unchanged over the past several years. Seasonal forecasting began in the 1980s in the Atlantic basin and has spread into other basins in the years since.
The 1977 North Indian Ocean cyclone season was part of the annual cycle of tropical cyclone formation. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. There are two main seas in the North Indian Ocean—the Bay of Bengal to the east of the Indian subcontinent and the Arabian Sea to the west of India. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center (JTWC) releases unofficial advisories. An average of five tropical cyclones form in the North Indian Ocean every season with peaks in May and November. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.
Climate change can affect tropical cyclones in a variety of ways: an intensification of rainfall and wind speed, a decrease in overall frequency, an increase in the frequency of very intense storms and a poleward extension of where the cyclones reach maximum intensity are among the possible consequences of human-induced climate change. Tropical cyclones use warm, moist air as their source of energy or "fuel". As climate change is warming ocean temperatures, there is potentially more of this fuel available. Between 1979 and 2017, there was a global increase in the proportion of tropical cyclones of Category 3 and higher on the Saffir–Simpson scale. The trend was most clear in the North Atlantic and in the Southern Indian Ocean. In the North Pacific, tropical cyclones have been moving poleward into colder waters and there was no increase in intensity over this period. With 2 °C (3.6 °F) warming, a greater percentage (+13%) of tropical cyclones are expected to reach Category 4 and 5 strength. A 2019 study indicates that climate change has been driving the observed trend of rapid intensification of tropical cyclones in the Atlantic basin. Rapidly intensifying cyclones are hard to forecast and therefore pose additional risk to coastal communities.
The following is a glossary of tropical cyclone terms.
The years between 1950 and 1959 featured the 1950s North Indian Ocean cyclone seasons. Each season was an ongoing event in the annual cycle of tropical cyclone formation. The North Indian tropical cyclone season has no bounds, but they tend to form between April and December, peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. Below are the most significant cyclones in the time period. Because much of the North Indian coastline is near sea level and prone to flooding, these cyclones can easily kill many with storm surge and flooding. These cyclones are among the deadliest on earth in terms of numbers killed. In this decade, only one RSMC watched over the basin at the time, India Meteorological Department (IMD) until 1959, when Joint Typhoon Warning Center (JTWC) was formed and it would release unofficial advisories for the basin.
The years between 1940 and 1949 featured the 1940s North Indian Ocean cyclone seasons. Each season was an ongoing event in the annual cycle of tropical cyclone formation. The North Indian tropical cyclone season has no bounds, but they tend to form between April and December, peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. Below are the most significant cyclones in the time period. Because much of the North Indian coastline is near sea level and prone to flooding, these cyclones can easily kill many with storm surge and flooding. These cyclones are among the deadliest on earth in terms of numbers killed. On 27 April 1949, India Meteorological Department (IMD) became a member of the World Meteorological Organization after independence.
During 1995, tropical cyclones formed within seven different bodies of water called basins. To date, 110 tropical cyclones formed, of which 74 were given names by various weather agencies. The strongest storm and the deadliest storm of the year was Typhoon Angela, which reached a minimum central pressure of 910 hPa (26.87 inHg) and caused a toal of 936 deaths throughout the Philippines. The costliest storm of the year was Hurricane Opal, which caused $4.7 billion in damage throughout Central America and the Gulf Coast of the United States.