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published in(发表于) 2016/6/26 5:45:41
Expert Group recognized EF4 tornadoes in Yancheng, Jiangsu, wind over level 17

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Expert Group confirmed tornadoes in Yancheng, Jiangsu Yancheng, EF4 wind Super 17 | | tornadoes _ news

Original title: Yancheng, the expert group recognized the "6·23" tornado EF4 wind Super 17


Nanjing, June 26 Reuters new media (Xinhua Zhu Guoliang) strong national meteorological center Chief Zheng Yongguang 26th told reporters of the weather forecast center, field surveys, storm has been recognized as a tornado in Yancheng, Jiangsu, the expert group determined to EF4 wind greater than 17.


June 23 from 14 o'clock in the afternoon to 15 o'clock, Jiangsu Yancheng rare winds, heavy rain, hail, lightning and other weather extremes, and Yancheng City, Funing, sheyang, a part of domain caused tremendous damage. After the disaster, Jiangsu provincial Observatory preliminary judge tornadoes occur.


"The current automatic weather stations, radar and other surveillance equipment density and performance also can't capture the tornado, only initially speculated that require field investigation confirmed a tornado and its destructive power to determine its grade. "Long Jie Lingyun Jiangsu provincial meteorological station said. After the disaster, Weather Bureau, Jiangsu Province, immediately invited strong national weather Center the weather forecast center, Beijing University, Nanjing University, all 10 meteorological experts investigation team conducted a field survey in Yancheng area.


Zheng Yong-Guang told reporters the investigation leader, field surveys, and radar data confirm, confirm that wreaked havoc this winds are tornadoes. Site the main tornado features using this lodging features trees, telephone poles, are toward the middle. Many of the leaves and bark of the trees were stripped, it is also consistent with characteristics of tornado damage. In addition, a key piece of evidence is, Ning area elementary school teacher shot a video on mobile phones, there were funnel clouds. Is another important basis for judging tornado funnel cloud.


Zheng Yongguang also, judging from damage, ten experts unanimously found that the EF4 tornadoes, wind of more than 17, estimating wind speed an astounding 73 mph.


Jiangsu provincial Meteorological Bureau Deputy Director Yang Jinbiao said, the tornado is divided into 6 levels, minimum EF0, up to EF5 tornadoes strength close to the highest level. From the wind, the current hierarchy of wind, level 17 is at the highest level, but the tornado winds more than 17.


"On the strength of the tornado rating, the same presumption of damage analysis, according to the site. "Zheng Yongguang told reporter, in site, they survey understand to many housing and a towers was completely destroyed; has car was Gale throwing up, and plug to a ruins in the; has two or three tons heavy of container was Gale throwing up with to hundreds of meters outside, and occurred twisted; has originally in water in the, and heavy up one or two tons of cement ship was Gale rolled up, upside down in shore; also has communications tower was twist into has twist-like. This underlines the devastating tornadoes of.


Yang Jinbiao introduction, currently group of tornadoes after the width of the area, length, precision measurement, will eventually produce a full report made public.



Responsible editor: Wang Hao





Article keywords:
Yancheng tornado

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Xinhua News Agency
专家组确认江苏盐城龙卷风为EF4级 风力超17级|盐城|龙卷风_新闻资讯

  原标题:专家组确认盐城“6·23”龙卷风为EF4级 风力超17级


  新华社南京6月26日新媒体专电(记者 朱国亮)国家气象中心强天气预报中心首席郑永光26日向记者透露,经现场勘测,江苏盐城风灾已确认为龙卷风,专家组判定等级为EF4级,风力超过17级。


  6月23日下午14时至15时,江苏盐城发生历史罕见的大风、暴雨、冰雹、雷电等极端天气,并对盐城市阜宁、射阳等地部分区域造成巨大破坏。灾害发生后,江苏省气象台初步判断有龙卷风发生。


  “目前的自动气象站、雷达等观测设备的密度和性能还无法明确扑捉到龙卷风,只能初步推测,因此龙卷风都需要现场调查确认,并根据其破坏力确定其等级。”江苏省气象台台长解令运说。灾害发生后,江苏省气象局立即邀请国家气象中心强天气预报中心、北京大学、南京大学等单位共10位气象专家组成调查组前往盐城灾区进行了现场调查。


  调查组组长郑永光告诉记者,经现场勘测,并与雷达资料相互印证,确认此次造成如此巨大破坏的大风就是龙卷风。现场主要依据是树木、电线杆倒伏特征符合龙卷风特性,都是往中心倒。许多树木的树叶、树皮都被扒光,这也符合龙卷风的破坏特征。另外,一个关键证据是,阜宁灾区一小学老师用手机拍摄了一段视频,其中出现了漏斗云。漏斗云是判断龙卷风的另一个重要依据。


  郑永光还介绍,从现场破坏情况来看,十位专家一致认定,此次龙卷风为EF4级,风力超过17级,估算风速达到惊人的73米/秒。


  江苏省气象局副局长杨金彪说,龙卷风总共分为6级,最低为EF0级,最高为EF5级,此次龙卷风强度接近于最高级别。从风力而言,目前对风力的分级中,17级是最高级别,但这次龙卷风的风力超过了17级。


  “对这次龙卷风强度定级,同样是依据现场的破坏状况来分析、推定的。”郑永光告诉记者,在现场,他们调查了解到很多房屋和一个水塔被完全摧毁;有汽车被大风抛起,并插到一个废墟中;有二三吨重的集装箱被大风抛起带到数百米外,并发生扭曲;有原本在水中、重达一两吨的水泥船舶被大风卷起,倒扣在岸上;还有通信铁塔被拧成了麻花状。这些都彰显了此次龙卷风的巨大破坏力。


  杨金彪介绍,目前专家组还在对龙卷风经过区域的宽度、长度进行精确测量,最终将形成一份完整报告对外公布。



责任编辑:王浩成





文章关键词:
盐城 龙卷风

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