留意96W未來的發展~2014/10/29
台灣附近到周日之前的天氣都很穩定且單純,
底層受到高壓迴流東風影響,高空則有太平洋副熱帶高壓籠罩,
因此幾乎沒什麼特別的天氣現象,溫度倒是會持續上升,尤其週五週六這兩天,
包括北台灣在內各地高溫都上看31~33度,秋老虎的現象可能會蠻明顯的,
下一波的天氣變化仍要等到周日(2日),這個我們明後天再來關心。
先來關心一下自從黃蜂颱風消失後就相當沉寂的西北太平洋,
經過這麼長時間的靜默之後,目前又開始慢慢恢復活力,
由雲圖可以看到自孟加拉灣往東延伸,
經過南海、菲律賓一直到關島東南方海面的ITCZ (間熱帶輻合區)
上的對流雲團發展漸趨活躍,雖然西南季風已經明顯減弱,
但是在南北半球副熱帶高壓夾擊下,中間的ITCZ仍有發展出熱帶擾動或是颱風的機會。
昨天在關島東方已經有熱帶擾動96W出現,經過一天的時間,
雖然看起來它有緩慢發展的趨勢,不過結構還仍較為鬆散,
CISK機制似乎運作的還不是很明顯,中心氣壓下降的速度並不快,
但整體來說,96W仍會在未來幾天繼續緩慢加強。
在北邊的副高壓引導下,預估96W將會一路西進,朝向菲律賓呂宋島東方海面靠近過來,
周末就會接近呂宋島,接著究竟是進入南海,還是逐漸北轉都很值得觀察,
特別是周日起下一波東北季風南下加強,跟96W之間的互動情況需要特別留意,
目前還有兩三天的時間可以觀察,暫時還不必太過擔心。
以上先簡單供參考囉~
http://ppt.cc/fxAF
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