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強颱巴威「先減慢再加速」 北部宜花首當其衝

ETtoday
2026/07/06 | 2分鐘閱讀

記者陳俊宏/台北報導

強烈颱風巴威將先減速或加速!氣象專家林得恩提醒,目前評估周五、周六颱風中心將會距離台灣最近,其所伴隨的風雨影響也將是最為顯著的時段,北部及宜蘭、花蓮首當其衝。

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林得恩在「林老師氣象站」臉書提到,當巴威遇上了台灣!在環境駛流場的導引下,巴威颱風持續以朝西北西轉西北方向前進,預估在周四前後,向北分量就有逐漸增大的趨勢。

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北部、宜花首當其衝

林得恩說,目前評估周五、周六颱風中心將會距離台灣最近,其所伴隨的風雨影響也將是最為顯著的時段,北部及宜花地區首當其衝,尤其是山區的降雨最為集中且劇烈,有達到豪雨或以上的累積降雨可能。

林得恩表示,而當巴威遇上了台灣,則會有以下3點的特徵:

第1、強度稍稍減弱

周五起當巴威颱風逐漸逼近台灣東部外海時,受到北方乾空氣逸入、垂直風切增大,以及海水熱焓量減少的緣故,強度有稍稍減弱的趨勢。

預估中心氣壓值將由原先的885hPa,升到900hPa,再升到915hPa;中心最大風速也從63公尺/秒,降至58公尺/秒,再降至53公尺/秒,颱風強度介於中颱上限至強颱下限。

第2、先減速後加速

由於北轉分量逐漸增加緣故,颱風運動速度將從原先時速22公里,降為時速20公里;隨後駛流場接手導引下,再回升為時速23公里。

第3、暴風圈減小

由於颱風暴風圈開始接觸到陸地,颱風結構受到破壞,暴風圈則有逐漸減小的趨勢。7級風暴風半徑將由原先的350公里,降至320公里;10級風暴風半徑也將從原先的150公里,降至120公里。

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本文轉載自ETtoday,原文標題:強颱巴威「先減慢再加速」 北部宜花首當其衝

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