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The scale used for a particular tropical cyclone depends on what basin the system is located in; with for example the Saffir–Simpson hurricane wind scale and the Australian tropical cyclone intensity scales both used in the Western Hemisphere. All of the scales rank tropical cyclones using their maximum sustained winds, which are either ...
Common developmental patterns seen during tropical cyclone development, and their Dvorak-assigned intensities. The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared ...
ESCAP/WMO Typhoon Committee's Tropical Cyclone Intensity Scale; Category Sustained winds Violent typhoon ≥105 knots ≥194 km/h Very strong typhoon 85–104 knots 157–193 km/h Strong typhoon 64–84 knots 118–156 km/h Severe tropical storm 48–63 knots 89–117 km/h Tropical storm 34–47 knots 62–88 km/h Tropical depression
PAGASA's Tropical Cyclone Intensity Scale [1] [2] Category Sustained winds Super typhoon (STY) ≥185 km/h
The Saffir–Simpson hurricane wind scale is a classification used for some Western Hemisphere tropical cyclones. Hong Kong has similar official five-level definition warning signals, which use descriptions of winds taken from the Beaufort Scale. The Hong Kong levels, however, do not correspond to the Beaufort Scale, which has 12 levels.
Typhoon Man-yi, known as Pepito in the Philippines, is now the equivalent of a Category 2 hurricane (96-109 mph/154-176 km/h) on the Saffir-Simpson Hurricane Wind Scale and will continue to ...
The scale separates hurricanes into five different categories based on wind. The U.S. National Hurricane Center classifies hurricanes of Category 3 and above as major hurricanes. The Joint Typhoon Warning Center classifies typhoons of 150 mph (240 km/h) or greater (strong Category 4 and Category 5) as super typhoons.
A tropical cyclone tracking chart is used by those within hurricane-threatened areas to track tropical cyclones worldwide. In the north Atlantic basin, they are known as hurricane tracking charts . New tropical cyclone information is available at least every six hours in the Northern Hemisphere and at least every twelve hours in the Southern ...