天氣小觀:未來一週,東西部,南北部,體感大不同 - 颱風討論
By Dinah
at 2021-03-07T20:37
at 2021-03-07T20:37
Table of Contents
三番故里 窗外雨滴打破細碎的玻璃。
這兩天的鋒面讓許多地方感受到了春雨的樣子,
鋒面過後,
換東北季風接手,最明顯降雨是在東北部了。
模式預報,未來一週北方西伯利亞冷高壓主要從東北地區移往日韓,
因此對台灣來說,冷空氣的路徑就變成從東亞沿海過來,
也就是隨著東北季風增強/減弱切換,
冷空氣都是影響東北部最大,台北花蓮次之,以此類推。
這也是春季主要特色,除非是冷氣團南下,
不然降溫往往就看東北季風迎風面,例如基隆比新竹冷..
三月,
青藏高原從冷源轉變為熱源的過渡期,不再加持蒙古冷高壓的發展,
冷高壓與冷高壓之間有很明顯的低壓空檔,
往往結合南支槽前的暖濕氣團進入華南地區,
因此,
單一個蒙古冷高壓勢力範圍已不像隆冬那樣容易往南擴展,
而也因為冷高壓從蒙古南下的阻礙變大,導致冷高壓經常從東北地區南下日韓。
台灣自然也就不在冷空氣南下的主要路徑了。
隨著春季高空大氣系統的快速變化,冷高壓東移南下也非常迅速,
模式預報,本週就有3個西伯利亞冷高壓從東北地區南下,
模式顯示
前面的2個冷高壓從東北地區南下都是直衝日韓後出海,
值得注意的是,
第3個冷高壓衝日韓後,留了一個分裂子高壓在東北亞,
由於模式顯示,未來的週末,日本有溫帶氣旋出現,
因此,
這個東北亞的子冷高壓可能直接從東亞沿海南下,
換句話說,要到週末才有機會鋒面報到。
而,
之所以地面高壓的移動迅速,原因當然是高空系統快速變化導致,
本週,
東北亞的大氣中層的西風帶的震盪快速,
連續兩個短波槽通過,
接著日本有溫帶氣旋發展東移,鄂霍次克海隨著拉出一個大西風槽,
進而導致東亞西風帶出現較大震盪。
一週後期,
東亞也跟著出現明顯西風槽與鋒面。
因此,本週主要就是看週末的變天了。(東北部例外)
天變地變,我們的愛也變。而我,在這座城市失去了..
(以上供參囉)
--
這兩天的鋒面讓許多地方感受到了春雨的樣子,
鋒面過後,
換東北季風接手,最明顯降雨是在東北部了。
模式預報,未來一週北方西伯利亞冷高壓主要從東北地區移往日韓,
因此對台灣來說,冷空氣的路徑就變成從東亞沿海過來,
也就是隨著東北季風增強/減弱切換,
冷空氣都是影響東北部最大,台北花蓮次之,以此類推。
這也是春季主要特色,除非是冷氣團南下,
不然降溫往往就看東北季風迎風面,例如基隆比新竹冷..
三月,
青藏高原從冷源轉變為熱源的過渡期,不再加持蒙古冷高壓的發展,
冷高壓與冷高壓之間有很明顯的低壓空檔,
往往結合南支槽前的暖濕氣團進入華南地區,
因此,
單一個蒙古冷高壓勢力範圍已不像隆冬那樣容易往南擴展,
而也因為冷高壓從蒙古南下的阻礙變大,導致冷高壓經常從東北地區南下日韓。
台灣自然也就不在冷空氣南下的主要路徑了。
隨著春季高空大氣系統的快速變化,冷高壓東移南下也非常迅速,
模式預報,本週就有3個西伯利亞冷高壓從東北地區南下,
模式顯示
前面的2個冷高壓從東北地區南下都是直衝日韓後出海,
值得注意的是,
第3個冷高壓衝日韓後,留了一個分裂子高壓在東北亞,
由於模式顯示,未來的週末,日本有溫帶氣旋出現,
因此,
這個東北亞的子冷高壓可能直接從東亞沿海南下,
換句話說,要到週末才有機會鋒面報到。
而,
之所以地面高壓的移動迅速,原因當然是高空系統快速變化導致,
本週,
東北亞的大氣中層的西風帶的震盪快速,
連續兩個短波槽通過,
接著日本有溫帶氣旋發展東移,鄂霍次克海隨著拉出一個大西風槽,
進而導致東亞西風帶出現較大震盪。
一週後期,
東亞也跟著出現明顯西風槽與鋒面。
因此,本週主要就是看週末的變天了。(東北部例外)
天變地變,我們的愛也變。而我,在這座城市失去了..
(以上供參囉)
--
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