天氣小觀:未來一週,北亞有寒潮,熱海有擾動 - 颱風討論
By Tom
at 2022-09-21T20:48
at 2022-09-21T20:48
Table of Contents
第一波大氣場的蒙古冷高壓帶來的東北(季)風吹來,溫度轉涼,
周五還有第二波東北(季)風將更有感,這是因為東北季風的強度增強,
並開始與菲律賓東風的大季風低壓帶輻合,
秋分過後,開始輪到北部和東部開始玩起地面秀。
事實上,模式顯示,今年北方西伯利亞大規模寒潮比往年來的早,
未來一週,
由於俄羅斯的阻塞高壓出現,並且往北極區挺進,
大規模北極氣團流向西伯利亞堆積,未來一周幾乎整片西伯利亞都降到零下了。
不過,
阻塞高壓看來並不會往中亞崩潰,
因此,還沒有良好的條件讓他衝向蒙古和東北亞,更對東亞幾乎沒甚麼影響。
而南方亞洲主要的改變就是南亞高壓的南退開始明顯了,
在高空西風噴流的壓力下,南亞高壓逐漸放棄華南高空,退守中南半島到印度半島北側,
西風噴流也從北緯40度往北緯35度南移,
而不得不說的是,這波西風大槽也是夠大,太平洋高壓只能等一週後期才有辦法西伸。
對台灣來說,菲律賓東方的熱帶擾動94W和95W,都因為太平洋高壓偏弱,應該影響不大,
然而,若是後頭的95W沒有發展起來,持續陷在大低壓帶的話,這就還要看後續了。
(最近忙忙,快速說說囉)
--
周五還有第二波東北(季)風將更有感,這是因為東北季風的強度增強,
並開始與菲律賓東風的大季風低壓帶輻合,
秋分過後,開始輪到北部和東部開始玩起地面秀。
事實上,模式顯示,今年北方西伯利亞大規模寒潮比往年來的早,
未來一週,
由於俄羅斯的阻塞高壓出現,並且往北極區挺進,
大規模北極氣團流向西伯利亞堆積,未來一周幾乎整片西伯利亞都降到零下了。
不過,
阻塞高壓看來並不會往中亞崩潰,
因此,還沒有良好的條件讓他衝向蒙古和東北亞,更對東亞幾乎沒甚麼影響。
而南方亞洲主要的改變就是南亞高壓的南退開始明顯了,
在高空西風噴流的壓力下,南亞高壓逐漸放棄華南高空,退守中南半島到印度半島北側,
西風噴流也從北緯40度往北緯35度南移,
而不得不說的是,這波西風大槽也是夠大,太平洋高壓只能等一週後期才有辦法西伸。
對台灣來說,菲律賓東方的熱帶擾動94W和95W,都因為太平洋高壓偏弱,應該影響不大,
然而,若是後頭的95W沒有發展起來,持續陷在大低壓帶的話,這就還要看後續了。
(最近忙忙,快速說說囉)
--
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