天氣小觀:西南季風掰掰,冷鋒來了 - 颱風討論

By Lauren
at 2015-09-06T19:38
at 2015-09-06T19:38
Table of Contents
隨著入秋第一波冷鋒報到,
西南季風也到了和台灣say goodbye的時刻,
西南季風一走,北部午後的雷陣雨就會消失,
取而代之的是東北風/東北季風的降溫。
對東部和北部山區迎風面降雨機率稍高。
中部天氣最佳,因為秋季的冷鋒通過後,
中部對東北季風不是背風低壓,熱雷雨不會在這裡產生,
加上秋季的舒適溫度,氣候宜人。
南部以高屏天氣稍差,因為秋季的東北季風,
背風低壓區剛好落在高屏地區,熱力作用下,溫度夠對流強,
容易出現午後降雨。
模式預報,未來一周,
東北風與東北季風無縫接軌將間熱帶輻合帶推到北緯10~15度,
東北季風與西南季風在南海上演了春季不會(相遇)上演的大戰,
這場大戰不斷持續,使南海出現氣旋式擾動,
不過隨著蒙古冷高壓南下,東北季風加強力道,直吹南海,
因此,氣旋式擾動較難發展。
在西太平洋上也有氣旋式擾動消長,
這裡是太平洋高壓的偏東風與西南季風的季風槽在醞釀,
環境會比南海好一些。
至於奇羅颱風,由於日本南方出現氣旋擾動,
多少影響奇羅颱風接收西南季風的加持,
因此,強度預測修正略為保守,路徑沿著太平洋高壓南側偏西移動,
直到太平洋高壓東退後,再轉偏北移動,併入西風帶。
奇羅颱風北上後,太平洋高壓中心回到日本東方海面,
不過新的西風槽很快又接著東移,
雙方又以日本作為角力戰,
對台灣來說屆時已落於槽後,蒙古冷高壓往東南移動,
帶來更多涼空氣。
在大氣高層,南亞高壓與西風噴流大戰五天後,
開始節節敗退,中心退到印度恆河口三角洲高空。
西風噴流逐漸往南壓,接近北緯30度。
夏季系統與冬季系統在東亞大戰一周,
夏季系統戰況慘烈,冬季系統逐漸占了上風,
在九月初的大氣環境,不是年年有就是。
一周後,北極冷氣團持續瘋狂,
不斷發瘋,不斷再接再厲,不斷攻擊北亞洲,絲毫不想停止。
因此西伯利亞受到一波波冷氣團侵襲,伴隨在陸地產生的溫帶氣旋。
因此看來,一周後的一周,依舊是白熱化冷暖大戰。
(以上供參囉)
--
西南季風也到了和台灣say goodbye的時刻,
西南季風一走,北部午後的雷陣雨就會消失,
取而代之的是東北風/東北季風的降溫。
對東部和北部山區迎風面降雨機率稍高。
中部天氣最佳,因為秋季的冷鋒通過後,
中部對東北季風不是背風低壓,熱雷雨不會在這裡產生,
加上秋季的舒適溫度,氣候宜人。
南部以高屏天氣稍差,因為秋季的東北季風,
背風低壓區剛好落在高屏地區,熱力作用下,溫度夠對流強,
容易出現午後降雨。
模式預報,未來一周,
東北風與東北季風無縫接軌將間熱帶輻合帶推到北緯10~15度,
東北季風與西南季風在南海上演了春季不會(相遇)上演的大戰,
這場大戰不斷持續,使南海出現氣旋式擾動,
不過隨著蒙古冷高壓南下,東北季風加強力道,直吹南海,
因此,氣旋式擾動較難發展。
在西太平洋上也有氣旋式擾動消長,
這裡是太平洋高壓的偏東風與西南季風的季風槽在醞釀,
環境會比南海好一些。
至於奇羅颱風,由於日本南方出現氣旋擾動,
多少影響奇羅颱風接收西南季風的加持,
因此,強度預測修正略為保守,路徑沿著太平洋高壓南側偏西移動,
直到太平洋高壓東退後,再轉偏北移動,併入西風帶。
奇羅颱風北上後,太平洋高壓中心回到日本東方海面,
不過新的西風槽很快又接著東移,
雙方又以日本作為角力戰,
對台灣來說屆時已落於槽後,蒙古冷高壓往東南移動,
帶來更多涼空氣。
在大氣高層,南亞高壓與西風噴流大戰五天後,
開始節節敗退,中心退到印度恆河口三角洲高空。
西風噴流逐漸往南壓,接近北緯30度。
夏季系統與冬季系統在東亞大戰一周,
夏季系統戰況慘烈,冬季系統逐漸占了上風,
在九月初的大氣環境,不是年年有就是。
一周後,北極冷氣團持續瘋狂,
不斷發瘋,不斷再接再厲,不斷攻擊北亞洲,絲毫不想停止。
因此西伯利亞受到一波波冷氣團侵襲,伴隨在陸地產生的溫帶氣旋。
因此看來,一周後的一周,依舊是白熱化冷暖大戰。
(以上供參囉)
--
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颱風
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