
薔琵颱風於昨日下午2點生成,環境條件有利發展,預估將成為七級暴風半徑達250至280公里的大型強颱風。台灣大學大氣科學博士林得恩指出,薔琵正在增強,未來路徑各國模式分歧,歐洲模式預計經過關島後北上影響琉球與日本本州東部,而美國NCEP與AI模式則認為將非常靠近台灣,對台影響機率大增,但不確定性仍高,需持續追蹤。
AI-generated summary
薔琵颱風源於關島東方海面的熱帶性低氣壓TD33,於昨日增強為今年第29號颱風。環境條件包括低至中等垂直風切、溫暖海面溫度、高海洋熱含量及良好外流,有利其發展。
薔琵颱風昨日下午2點生成,氣象專家指出,環境條件對薔琵發展有利,預估未來將成為七級暴風半徑可達250至280公里的「又大又強颱風」。目前各國模式路徑分歧,其中美國與AI兩種模式預估,將非常靠近台灣,對台影響機率大增。
台灣大學大氣科學博士林得恩在臉書「林老師氣象站」發文指出,「薔琵,正在長大、長壯!」林得恩說明,原位於關島東方海面上的熱帶性低氣壓TD33,於昨日白天增強為今年第29號颱風薔琵。由於即將進入一個適合它繼續發展、增強的海域;包含有低至中等強度的垂直風切海域(5至15節)、溫暖的海面溫度(攝氏29至30度)、海洋熱含量(OHC)接近100千焦/平方公分以及良好的向赤道和東向高層外流等有利條件。
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林得恩提到,根據中央氣象署今晨最新氣象資料評估顯示,薔琵颱風未來七級風暴風半徑可達250至280公里,十級風暴風半徑也在80至100公里,強度發展介於中度颱風到強烈颱風等級之間;將會是個又大、又強的颱風。
林得恩表示,薔琵颱風未來的運動路徑,將循著環境駛流場的導引,也就是太平洋高壓西伸或東退的程度來決定;各國數值模式的看法仍然相當分歧。其中歐洲傳統物理模式ECMWF認為,薔琵颱風預計週末至下週一(10/17至10/19)經過關島附近,接著朝琉球東南方海面移動,向北分量增多,並逐漸開始拋物線轉向。下週二至週四(10/20至10/22)可能經過琉球以南海面北上,並有機會靠近日本本州東部近海;對台灣天氣無直接影響。
至於美國NCEP數值模式及AI數值模式等則均認為薔琵颱風未來的運動路徑將會非常靠近台灣,對台灣影響程度跟著加大。不過由於時間尚久,環境仍在調整當中,不確定性大,應該持續追蹤監測其未來的發展趨勢。
AI outlook — possibilities, not facts
薔琵颱風將非常靠近台灣,增加對台影響機率
Possible · Within weeks

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