天氣速觀:巴逢颱風意外冷,北極渦旋增強中 - 颱風討論
By William
at 2019-12-26T21:12
at 2019-12-26T21:12
Table of Contents
天氣速觀:巴逢颱風意外冷,北極渦旋增強中
目前北極渦旋100百帕高度場中心15100米增強中,(想像910百帕強烈氣旋)
未來10天將成為中心14900米的超級渦旋(想像890百帕超級氣旋),
北極渦旋如此強大,平流層的極夜噴流當然也爆發了,
事實上國際換日線北極區上空平流層頂的極夜噴流已經突破每秒100公尺,
很快的歐洲上空的極夜噴流也要突破每秒100公尺,
可見全環的北極渦旋正猛烈增強中,猶如颱風中心爆發般的10級風圈。
北極囤積大量的超級冷凍氣團,
未來兩天,零下40度出現在加拿大北方的北極冰洋上,而非極地大陸上。
如此超寒冷的"高等位溫面"當然就往加拿大傾斜,
於是冷空氣不斷沿著等位溫面往北美南下,
因此,模式預報,未來一週北美冷氣團一波接一波南下。
至於東亞,當然也是有冷空氣,來自西伯利亞。
儘管北極氣團偏好北美,但冬季的西伯利亞自產冷氣團,
因此,當東亞有西風槽出現依舊會有冷空氣南下,
若是南方有颱風加強東北季風,
地面層冷空氣南下非常快速,甚至偷渡一些冷氣團。
目前巴逢颱風在南海,很快會被捲入的東北季風滅了,
但這次模式預報850帕6度線壓到北台灣,
因此,比起年底沒有巴逢颱風的冷空氣南下,
今晚起冷空氣迅速南下,搭配水氣濕冷冷氣團有機會達標,
就看看了,要趕快穿厚衣嚕。
(快速說說,以上供參囉)
--
目前北極渦旋100百帕高度場中心15100米增強中,(想像910百帕強烈氣旋)
未來10天將成為中心14900米的超級渦旋(想像890百帕超級氣旋),
北極渦旋如此強大,平流層的極夜噴流當然也爆發了,
事實上國際換日線北極區上空平流層頂的極夜噴流已經突破每秒100公尺,
很快的歐洲上空的極夜噴流也要突破每秒100公尺,
可見全環的北極渦旋正猛烈增強中,猶如颱風中心爆發般的10級風圈。
北極囤積大量的超級冷凍氣團,
未來兩天,零下40度出現在加拿大北方的北極冰洋上,而非極地大陸上。
如此超寒冷的"高等位溫面"當然就往加拿大傾斜,
於是冷空氣不斷沿著等位溫面往北美南下,
因此,模式預報,未來一週北美冷氣團一波接一波南下。
至於東亞,當然也是有冷空氣,來自西伯利亞。
儘管北極氣團偏好北美,但冬季的西伯利亞自產冷氣團,
因此,當東亞有西風槽出現依舊會有冷空氣南下,
若是南方有颱風加強東北季風,
地面層冷空氣南下非常快速,甚至偷渡一些冷氣團。
目前巴逢颱風在南海,很快會被捲入的東北季風滅了,
但這次模式預報850帕6度線壓到北台灣,
因此,比起年底沒有巴逢颱風的冷空氣南下,
今晚起冷空氣迅速南下,搭配水氣濕冷冷氣團有機會達標,
就看看了,要趕快穿厚衣嚕。
(快速說說,以上供參囉)
--
Tags:
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