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1892 Mauritius cyclone

Fourth-deadliest tropical cyclone recorded in the Southern Hemisphere

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The damage on Mauritius was so severe that contemporaneous newspapers questioned whether the island would recover. Damage was estimated at £2,000,000 (1892 GBP, $9.75 million USD).

Meteorological history

Before the storm struck, Mauritius had never experienced a cyclone between 12 April and 1 December, which was considered outside of the cyclone season. The origins of the damaging cyclone are unclear. A report from the Royal Alfred Observatory on Mauritius noted that a large cyclone was moving southwestward on 24 April 1892, located north of the island. Over the next few days, the storm either recurved to the southeast, or generated a second smaller cyclone moving southeastward. Regardless, a powerful cyclone struck what was then the British colony of Mauritius on 29 April. From 1:25 to 2:30 pm that afternoon, the island experienced the eye of the storm for 65 minutes, before the winds again increased. At 2:30 pm, a weather station recorded a minimum pressure of 947 mbar (27.96 inHg); this was the lowest pressure ever recorded on Mauritius at the time, breaking the record set on 1 March 1818. At 3:47 pm, the weather station recorded maximum sustained winds of 195 km/h (121 mph). Wind gusts reached 216 km/h (134 mph), which would be the highest winds on the island until Cyclone Carol in 1960. There have been only six tropical cyclones producing a stronger wind gust since the 1892 storm: Carol, Jenny in 1962, Danielle in 1964, Gervaise in 1975, Claudette in 1979, and Dina in 2002. Cyclone Hollanda in 1994 tied the winds produced by the 1892 storm.

The cyclone also produced lightning on the island during its passage. Weather conditions quickly improved on Mauritius after the storm moved away from the island. The storm was unusual in its trajectory coming from the northwest; most other Mauritius cyclones struck from the northeast. The nomenclature for the weather phenomena on Mauritius was variously described as a blizzard, cyclone, hurricane, tornado, and whirlwind, although the size and scope of the storm meant it was not a proper tornado. A contemporaneous newspaper article described 29 April on the island as "Black Friday".

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