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The typhoon killed 456 people and left more than US$4.2 billion in damage. [131] China's costliest typhoon on record was Typhoon Fitow in 2013, which inflicted ¥63.1 billion in damage (US$10.4 billion) when it struck Wenzhou as the most powerful October landfall in mainland China. [132]
Since 2009 the Hong Kong Observatory has divided typhoons into three different classifications: typhoon, severe typhoon and super typhoon. [20] A typhoon has wind speed of 64–79 knots (73–91 mph; 118–149 km/h), a severe typhoon has winds of at least 80 knots (92 mph; 150 km/h), and a super typhoon has winds of at least 100 knots (120 mph ...
The West 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 (at least of Category 3 intensity). [1]
During the Atlantic hurricane season, even before a tropical cyclone forms, there are words like “tropical wave,” “tropical disturbance,” “invest” and “potential tropical cyclone.”
August 1951: No tropical cyclones are known to have affected Arizona in the 1940s. However, in the 1950s, the remnants of two more storms affected the state. On August 24, 1951, the moisture from a hurricane that made landfall in Baja California moved over the state, producing more than 5.00 inches (127 mm) of precipitation over southwestern ...
While many of these storms form in the Atlantic basin, some systems or their remnants move through Mexico from the Eastern Pacific basin. The average storm total rainfall for a tropical cyclone impacting the lower 48 from the Atlantic basin is about 16 inches (410 mm), with 70–75 percent of the storm total falling within a 24-hour period.
One of this year’s most powerful storms made landfall in northern Vietnam on Saturday, after killing at least four people and injuring at least 95 others in southern China, according to state media.
Tropical cyclones are known to form even when normal conditions are not met. For example, cooler air temperatures at a higher altitude (e.g., at the 500 hPa level, or 5.9 km) can lead to tropical cyclogenesis at lower water temperatures, as a certain lapse rate is required to force the atmosphere to be unstable enough for convection.