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Tropical Storm Zita (1997)
Severe Tropical Storm Zita, known in the Philippines as Tropical Storm Luming, was a short-lived tropical cyclone that killed seven people throughout southern China in August 1997. Originating from a tropical disturbance over the South China Sea on August 19, Zita tracked westward as it quickly strengthened within a region of light wind shear, attaining winds of 140 km/h (85 mph) as it made landfall along the Leizhou Peninsula early on August 22. Maintaining this intensity, the storm made a second landfall in northern Vietnam later that day before rapidly weakening over land. The remnants of Zita were last noted over extreme northwestern Vietnam on August 24.
Although a relatively weak system, Tropical Storm Zita caused significant damage in Southern China. There, seven people were known to have been killed by the storm and damage reached $433 million (1997 USD). However, a report from Dartmouth College states that 345 people were killed by the storm. In Vietnam, significantly less damage took place; no fatalities were reported and losses reached $5 million (1997 USD).
==Meteorological history==
Severe Tropical Storm Zita originated from a tropical disturbance over the South China Sea which was first identified by the JTWC on August 19, 1997, roughly 555 km (345 mi) west of the northern Philippines. By August 20, a low-level circulation developed and deep convection persisted around the center. Situated within an easterly flow, the system tracked westward towards the southern Chinese island of Hainan as it strengthened. Later that day, a Tropical Cyclone Formation Alert was issued for the disturbance; around the same time, the Japan Meteorological Agency (JMA) began monitoring the system as a tropical depression. Hours later, the JTWC classified the depression as Tropical Storm Zita, the 15th named storm of the season.〔 Early the next day, the JMA followed suit and upgraded Zita to a tropical storm according to ten-minute sustained wind standards.〔 Additionally, the Philippine Atmospheric, Geophysical and Astronomical Services Administration issued a few advisories on the system as it existed within their area of responsibility, during which time it was given the local Filipino name Luming.
Situated in a region with little to no wind shear, the storm's outflow quickly became established and banding features wrapped around the periphery. Despite Zita's proximity to China's coastline, it was able to intensify into a typhoon by August 22, attaining winds of 120 km/h (75 mph), equivalent to a Category 1 hurricane on the Saffir–Simpson Hurricane Scale. Strengthening continued until Zita made landfall along the Leizhou Peninsula around 0600 UTC with winds of 140 km/h (85 mph).〔 At landfall, the JMA assessed the storm to have been slightly weaker, estimating it to have peaked as a severe tropical storm with ten-minute sustained winds of 100 km/h (65 mph) and a barometric pressure of 980 mbar (hPa; 28.94 inHg).〔 Although the storm moved over land, it maintained its intensity as it entered the Gulf of Tonkin. Around 2200 UTC, Zita made its final landfall near Cẩm Phả, Vietnam. Rapid weakening ensued as it moved further inland. Early on August 23, the JTWC issued their final advisory on the storm as it weakened to a tropical depression.〔 However, the JMA continued to monitor Zita until it dissipated early on August 24 over extreme northwestern Vietnam.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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