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台风“卡努”登陆广东 浙粤琼狂风暴雨持续至今夜

2017-10-16 06:02:54   

中国天气网讯 今天凌晨(16日)3时25分前后,今年第20号台风“卡努”(强热带风暴级)在广东省湛江市徐闻县沿海登陆。预计今天是本次台风带来风雨最强,影响最重的时段。受台风本体、台风倒槽及冷空气共同影响,广东中西部沿海、海南岛北部、浙江东北部等地局部有大暴雨。同时南海西北部、北部湾、广东西部沿海、海南岛北部沿海等地将有9-11级大风,台风中心经过的海域或地区的风力有12-13级,阵风可达14-15级。

广东海南多地停课 交通受影响

15日白天,广东湛江风雨逐渐明显,市民正在加固门窗。(图/殷美祥)

“卡努”登陆前,台湾、浙江、广东、海南等地已出现较大风雨。监测显示,14日16时-15日15时,广东上川岛气象站出现最大瞬时风12级(35.3米/秒)。浙江东部沿海一带,在台风北侧倒槽云系和冷空气共同影响下,雨势较强,像是石浦15日14时-20时6小时降水量达到178.5毫米;广东南部沿海以及海南北部地区,不少站点累积降水量达到50毫米以上,例如海南北部的海口、琼山、安定、文昌等地。

为应对台风影响,国家防总已启动防汛防台风三级应急响应,广东、海南等地启动防台风二级应急响应。广东深圳珠海等多地宣布学校停课,佛山站、肇庆站、茂名站等部分铁路列车停运。

另据南海网消息,海南海口市、三亚市、文昌市、琼海市等11个市县各级各类学校将于16日停课放假一天,其中三亚全市停课两天。海南环岛高铁15日-17日暂停售票,琼州海峡全线停航。

华东华南成降雨中心 广东海南风急浪大

据中央气象台消息,今年第20号台风“卡努”已于今天凌晨3时25分前后在广东省湛江市徐闻县沿海登陆,登陆时中心附近最大风力有10级(28米/秒),中心最低气压为988百帕。

中央气象台预计,今天“卡努”的风雨影响仍将持续。东海西南部、台湾海峡、南海中北部、琼州海峡、北部湾以及福建沿海、台湾西部沿海、广东沿海、珠江口区、广西沿海、海南岛沿海将有7-8级大风,其中南海西北部、琼州海峡、北部湾、广东西部沿海、海南岛北部沿海、珠江口区等地的部分海域或地区将有9-11级大风,“卡努”中心经过的附近海域或地区的风力有12-13级,阵风可达14-15级。

受台风本体、台风倒槽及冷空气共同影响,浙江东北部、上海大部、广东南部、广西南部和西部、海南岛等地有大到暴雨,其中浙江东北部、广东中西部沿海、海南岛北部等地的局部地区有大暴雨(100-200毫米)。

风雨之外,“卡努”还将在海上掀起大浪,广东海南等地要特别注意防范海浪及其带来的风暴增水。国家海洋预报台预计,南海西北部将出现7到10米的狂浪到狂涛区,广东西部、海南北部沿岸海域将出现4到6米的巨浪到狂浪。雷州半岛东岸沿海将出现150到380厘米的风暴增水,广东汕尾到茂名沿海将出现50到180厘米的风暴增水,海南岛东部和北部沿海将出现50到150厘米的风暴增水。

登陆广东之后,卡努或于今天中午前后擦过或登陆海南岛西北部沿海,然后移入北部湾并转向西偏南方向移动,强度明显减弱,趋向越南中部。从今夜间开始,台风逐渐西行,加上水汽供应不足,华东和华南的降水都会明显减弱。预计今天夜间到明天白天,浙江东北部一带降雨将减弱为中到大雨。广东西南部沿海、海南北部、广西南部和西部也主要以中到大雨为主,局地暴雨。

气象专家建议,海南、广东、广西、福建、浙江、上海等相关省(区市)需及时做好各项台风防御措施;沿海地区需做好渔船和海上作业人员回港避风、沿海旅游人员转移工作;加强防范暴雨可能引发的城市内涝、山洪、滑坡、泥石流等灾害。

“卡努”具备三大特点 将开启新的台风活跃期

今年台风生成和登陆数量已较常年偏多。截至10月14日,西北太平洋及南海共有20个台风生成,比多年平均21.5个台风偏少1.5个。目前已有8个台风(苗柏、洛克、纳沙、海棠、天鸽、帕卡、玛娃和卡努)登陆我国,比常年平均(6.6个)偏多1.4个。

不过,秋台风数量较常年明显偏少。9月1日至10月14日共生成4个台风(1717古超、1718泰利、1719杜苏芮、1720卡努),比常年同期(7.1个)偏少3.1个;此外秋台风的强度也普遍不强:上述4个秋台平均极值强度为每秒35米,比常年平均极值强度每秒42.0米偏弱。

中央气象台首席预报员张玲分析认为,本次即将登陆我国的“卡努”有三个明显的特点:一是影响时间长,从12日“卡努”生成到18日在北部湾减弱,“卡努”将经历长达7天的生命期;二是影响范围广,虽然“卡努”台风本体和其他南海台风相比并没有什么特别之处,但台风的北侧有倒槽云系和冷空气系统的共同影响,在华南、华东大部、台湾地区以及南海、琼州海峡、北部湾、台湾海峡、东海等地都将有大范围的风雨影响;三是鼎盛期登陆,“卡努”进入南海后,强度持续增强,并在鼎盛期登陆广东湛江一带沿海,登陆时中心附近最大风力10级。

台风“卡努”也将开启新的台风活跃期。中央气象台预计,未来10天,南海及西北太平洋面还将有1~2个台风生成。

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