天氣小觀:未來一周,西南季風/南亞高壓催勁 - 颱風討論

By Barb Cronin
at 2015-05-21T22:33
at 2015-05-21T22:33
Table of Contents
簡單的天氣小觀:未來一周,西南季風/南亞高壓催勁
(以下白話說明)
目前冷暖勢力持續膠著,
西南季風爆發後,
就如同秋季東北季風登場任務在驅趕西南季風,
春末西南季風爆發任務在清除東亞冷空氣,
不過,東亞的殘存的冷空氣勢力還不少,
未來逐漸北推,也要推上一兩個月。
尤其才剛爆發,漫漫長路,還有一段硬仗要打。
模式預報,
北方還是冷空氣勢力影響,相對南方,地面氣壓梯度高,
吹下來的東北風與西南季風交戰下,出現低壓擾動。
未來一周,西南季風持續催勁,冷暖戰爭繼續在台灣附近上演,
前期是西南季風加強下,熱帶氣團北上,暖濕空氣的迎風面下,南部要當心降雨加強。
後期則是北方有西風槽加深,冷空氣又補充,冷暖戰線往南移,
因此一周後期梅雨鋒面逐漸南移。
不過有趣的是高空南亞高壓也是持續發威,
模式預報,高空的南亞高壓將西風噴流北頂上去,
使地面戰場和高空戰場呈現截然不同的情況。
在地面戰場,一周後期,冷空氣加強,
從東亞外海往台灣補充,冷暖戰線往南移。
在高空戰場,一周後期,南亞高壓反渦旋勢力加強,
西風噴流被迫北拱,在東亞外海拉回。
夾在中間的大氣中層-對流層500帕也很有趣。
太平洋高壓龜縮在東邊,不敢加入戰場。
西風帶南支氣流繞過青藏高原,
受到中南半島季風低壓影響,
一部分向南匯入中南半島的季風槽區。
另一部分往西進入華南,成為渦流,
也就是西風南支槽,使華南雲雨帶出現。
甚至槽前的西南風與北方的西北氣流交互作用。
在長江流域出現低壓。
因此未來一周,整個東亞南方大氣環境大亂鬥各地上演,
有華南雲雨帶,季風低壓,還有梅雨鋒面。
台灣戰場是梅雨鋒面+低壓,
中南半島戰場則有季風槽+季風低壓,
華中華南戰場則是華南雲雨帶+低壓。
這些戰場的共通點就是,西南季風都有加入。
說是西南季風引爆各地大氣戰場的大亂鬥也不為過吧。
(以上供參囉)
--
(以下白話說明)
目前冷暖勢力持續膠著,
西南季風爆發後,
就如同秋季東北季風登場任務在驅趕西南季風,
春末西南季風爆發任務在清除東亞冷空氣,
不過,東亞的殘存的冷空氣勢力還不少,
未來逐漸北推,也要推上一兩個月。
尤其才剛爆發,漫漫長路,還有一段硬仗要打。
模式預報,
北方還是冷空氣勢力影響,相對南方,地面氣壓梯度高,
吹下來的東北風與西南季風交戰下,出現低壓擾動。
未來一周,西南季風持續催勁,冷暖戰爭繼續在台灣附近上演,
前期是西南季風加強下,熱帶氣團北上,暖濕空氣的迎風面下,南部要當心降雨加強。
後期則是北方有西風槽加深,冷空氣又補充,冷暖戰線往南移,
因此一周後期梅雨鋒面逐漸南移。
不過有趣的是高空南亞高壓也是持續發威,
模式預報,高空的南亞高壓將西風噴流北頂上去,
使地面戰場和高空戰場呈現截然不同的情況。
在地面戰場,一周後期,冷空氣加強,
從東亞外海往台灣補充,冷暖戰線往南移。
在高空戰場,一周後期,南亞高壓反渦旋勢力加強,
西風噴流被迫北拱,在東亞外海拉回。
夾在中間的大氣中層-對流層500帕也很有趣。
太平洋高壓龜縮在東邊,不敢加入戰場。
西風帶南支氣流繞過青藏高原,
受到中南半島季風低壓影響,
一部分向南匯入中南半島的季風槽區。
另一部分往西進入華南,成為渦流,
也就是西風南支槽,使華南雲雨帶出現。
甚至槽前的西南風與北方的西北氣流交互作用。
在長江流域出現低壓。
因此未來一周,整個東亞南方大氣環境大亂鬥各地上演,
有華南雲雨帶,季風低壓,還有梅雨鋒面。
台灣戰場是梅雨鋒面+低壓,
中南半島戰場則有季風槽+季風低壓,
華中華南戰場則是華南雲雨帶+低壓。
這些戰場的共通點就是,西南季風都有加入。
說是西南季風引爆各地大氣戰場的大亂鬥也不為過吧。
(以上供參囉)
--
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