天氣小觀:西伯利亞急凍,加拿大持續冰凍 - 颱風討論
By Lauren
at 2013-12-30T16:14
at 2013-12-30T16:14
Table of Contents
天氣小觀:西伯利亞急凍,加拿大持續冰凍
前言:好久沒發文了,因為忙不過來,唉唉。
不過~!!天氣又要有重大變化,北極的阻塞高壓已經發揮作用了:
位於阿拉斯加北方的北冰洋阻塞高壓持續發揮作用
北極渦旋分成兩區,一區在北亞,一區在加拿大,
由於阻塞高壓的關係,美亞地區的冷渦旋往西移動受阻,
一部分冷空氣被迫回饋回北極,好死不死歐亞又有暖脊北上,
預報新的冷空氣與折返的冷空氣均往西伯利亞堆積,
西伯利亞地區陷入大急凍,入冬以來最嚴寒的氣侯即將出現,
脊前強烈的冷高壓(氣壓值不斷上看)也將在西西伯利亞出現。
因此必須立刻觀察對應東亞西風槽的情況,
由於極強的冰凍氣團大量堆積在北亞,
對東亞來說,一旦整個西風槽配合轉直,將對整個東亞將帶來嚴重寒害。
台灣則要視西風槽底的位置決定影響程度,不過由於冷空氣回饋
對應冷空氣在西伯利亞堆積,南方的台灣未來一周則比較溫暖些。
另一頭的加拿大從深秋至今已經急凍許久,未來一周在阻塞高壓影響,
阻塞高壓前的偏北氣流持續冰凍加拿大,今年寒冰之地的苦主持續連莊。
(以上供參囉)
--
前言:好久沒發文了,因為忙不過來,唉唉。
不過~!!天氣又要有重大變化,北極的阻塞高壓已經發揮作用了:
位於阿拉斯加北方的北冰洋阻塞高壓持續發揮作用
北極渦旋分成兩區,一區在北亞,一區在加拿大,
由於阻塞高壓的關係,美亞地區的冷渦旋往西移動受阻,
一部分冷空氣被迫回饋回北極,好死不死歐亞又有暖脊北上,
預報新的冷空氣與折返的冷空氣均往西伯利亞堆積,
西伯利亞地區陷入大急凍,入冬以來最嚴寒的氣侯即將出現,
脊前強烈的冷高壓(氣壓值不斷上看)也將在西西伯利亞出現。
因此必須立刻觀察對應東亞西風槽的情況,
由於極強的冰凍氣團大量堆積在北亞,
對東亞來說,一旦整個西風槽配合轉直,將對整個東亞將帶來嚴重寒害。
台灣則要視西風槽底的位置決定影響程度,不過由於冷空氣回饋
對應冷空氣在西伯利亞堆積,南方的台灣未來一周則比較溫暖些。
另一頭的加拿大從深秋至今已經急凍許久,未來一周在阻塞高壓影響,
阻塞高壓前的偏北氣流持續冰凍加拿大,今年寒冰之地的苦主持續連莊。
(以上供參囉)
--
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