天氣小觀:未來一周尾聲,亞洲遠東阻塞高壓出現 - 颱風討論

By Tristan Cohan
at 2017-01-07T18:23
at 2017-01-07T18:23
Table of Contents
天氣小觀:未來一周尾聲,亞洲遠東阻塞高壓出現
模式預報,北半球冬季系統勢力也逐漸壯大,
一周尾聲,冬季系統勢力與強度逐漸達到入冬以來的巔峰。
以強度來看,冬季系統中心的北極渦旋不斷增強,
有望達到百帕高度場14900米的超級渦旋。
( 想像890百帕的超級氣旋 )
以範圍來看,
( 528dekametres 厚度極薄大氣線,表示冷凍氣團範圍,地面溫度可視為0度以下
552dekametres 厚度很薄大氣線,表示冷氣團範圍,地面溫度可視為10度以下
564dekametres 厚度較薄大氣線,表示冷空氣範圍,地面溫度可視為15度以下 )
冷凍氣團遍及北緯40度以北的絕大部分地區,這冷凍氣團可是會結冰的,
而冷氣團勢力(約850帕0度線)也往北緯30度邁進,部分地區突破到北緯30度以南。
而冷空氣勢力更是到達台灣。
冬季系統囂張的日子看來不遠。難道冬季要回來了?
同時,
也由於北極渦旋偏向北美大陸,近零下30度的超級可怕冷凍氣團進入北大西洋,
有助於北極海冰面積增強,期望能填補空缺的北大西洋海冰。
( 超冷空氣入海是非常壯觀的 )
此外,千呼萬喚在一週尾聲,亞洲遠東地區出現阻塞高壓。
在冬季,阻塞高壓一出,寒潮爆發跟進,因為阻塞高壓會阻擋流動的西風氣流,
讓冷氣團堆積成超級冷氣團。
而一周尾聲在亞洲遠東地區出現的阻塞高壓,其實是從北太平洋阻塞高壓西移而來。
(阻塞高壓阻斷西風氣流後,不隨著西風帶往東移,
有的阻塞高壓更囂張,竟然還會西移,簡直不把西風系統放在眼裡。
想像夏季環境是太平洋高壓的東風,颱風隨著太平洋高壓西移,
但有的颱風很囂張地往東移,但其實也是太平洋高壓的漏洞讓颱風東移)
一周尾聲,
原本位於北太平洋的阻塞高壓受西風帶的漏洞(西風槽南下)順勢偏向槽後脊而西移,
西移後的阻塞高壓跑到亞洲遠東地區,讓遠本堆積在亞洲遠東地區的極地冷氣團南下,
進入東北亞,同時在日本北海道高空出現非常強烈且壯大的東北亞高空冷渦旋。
強烈東北亞高空冷渦旋一出現,東亞的皮皮剉了。
在高空冷渦旋的西側,從西伯利亞到蒙古地面堆積出1040百帕以上的冷高壓。
以西伯利亞冷高壓來看,通常冷高壓是拜西風槽推動,
在貝加爾湖到蒙古為中心堆積出強烈冷高壓中心,然後南下。
但是模式預報,一周尾聲,
拜日本北海道上空的強烈高空冷渦旋推動,
整個西伯利亞到蒙古都是冷高壓中心,
這表示"冷氣團平均分布。
呼應了前面開頭所述,冬季系統勢力壯大。
對台灣來說,一周尾聲,冷氣團勢力突破北緯30度,
850帕0度線壓到東海,若是壓到台灣北部,那就差不多要寒流了。
簡單來說,未來一周,北極渦旋不斷增強,冬季系統吃威而鋼了。
最後忘了談東亞,
目前西伯利亞1048百帕以上的冷高壓分裂一波冷高壓經蒙古南下,
因此未來兩三天,東北季風增強,看來北部要轉陰雨綿綿。
溫度也會下降到有點冷(以北部感受為主)。
隨著冷高壓南下,西風南支槽被抑制,
但三天過後,南支槽又活躍,華南雲雨帶出現,
但依然被副高擋著,影響台灣有限。
但很快,
不管是西風南支槽,還是副高都擋不住即將而來的冬季大環境而必須沉寂或撤退。
一周尾聲的,冬季大環境下,東北季風直接從西伯利亞輸送冷空氣到達台灣。
台灣溫度直直落。
後續就有待觀察了。
(以上供參囉)
--
模式預報,北半球冬季系統勢力也逐漸壯大,
一周尾聲,冬季系統勢力與強度逐漸達到入冬以來的巔峰。
以強度來看,冬季系統中心的北極渦旋不斷增強,
有望達到百帕高度場14900米的超級渦旋。
( 想像890百帕的超級氣旋 )
以範圍來看,
( 528dekametres 厚度極薄大氣線,表示冷凍氣團範圍,地面溫度可視為0度以下
552dekametres 厚度很薄大氣線,表示冷氣團範圍,地面溫度可視為10度以下
564dekametres 厚度較薄大氣線,表示冷空氣範圍,地面溫度可視為15度以下 )
冷凍氣團遍及北緯40度以北的絕大部分地區,這冷凍氣團可是會結冰的,
而冷氣團勢力(約850帕0度線)也往北緯30度邁進,部分地區突破到北緯30度以南。
而冷空氣勢力更是到達台灣。
冬季系統囂張的日子看來不遠。難道冬季要回來了?
同時,
也由於北極渦旋偏向北美大陸,近零下30度的超級可怕冷凍氣團進入北大西洋,
有助於北極海冰面積增強,期望能填補空缺的北大西洋海冰。
( 超冷空氣入海是非常壯觀的 )
此外,千呼萬喚在一週尾聲,亞洲遠東地區出現阻塞高壓。
在冬季,阻塞高壓一出,寒潮爆發跟進,因為阻塞高壓會阻擋流動的西風氣流,
讓冷氣團堆積成超級冷氣團。
而一周尾聲在亞洲遠東地區出現的阻塞高壓,其實是從北太平洋阻塞高壓西移而來。
(阻塞高壓阻斷西風氣流後,不隨著西風帶往東移,
有的阻塞高壓更囂張,竟然還會西移,簡直不把西風系統放在眼裡。
想像夏季環境是太平洋高壓的東風,颱風隨著太平洋高壓西移,
但有的颱風很囂張地往東移,但其實也是太平洋高壓的漏洞讓颱風東移)
一周尾聲,
原本位於北太平洋的阻塞高壓受西風帶的漏洞(西風槽南下)順勢偏向槽後脊而西移,
西移後的阻塞高壓跑到亞洲遠東地區,讓遠本堆積在亞洲遠東地區的極地冷氣團南下,
進入東北亞,同時在日本北海道高空出現非常強烈且壯大的東北亞高空冷渦旋。
強烈東北亞高空冷渦旋一出現,東亞的皮皮剉了。
在高空冷渦旋的西側,從西伯利亞到蒙古地面堆積出1040百帕以上的冷高壓。
以西伯利亞冷高壓來看,通常冷高壓是拜西風槽推動,
在貝加爾湖到蒙古為中心堆積出強烈冷高壓中心,然後南下。
但是模式預報,一周尾聲,
拜日本北海道上空的強烈高空冷渦旋推動,
整個西伯利亞到蒙古都是冷高壓中心,
這表示"冷氣團平均分布。
呼應了前面開頭所述,冬季系統勢力壯大。
對台灣來說,一周尾聲,冷氣團勢力突破北緯30度,
850帕0度線壓到東海,若是壓到台灣北部,那就差不多要寒流了。
簡單來說,未來一周,北極渦旋不斷增強,冬季系統吃威而鋼了。
最後忘了談東亞,
目前西伯利亞1048百帕以上的冷高壓分裂一波冷高壓經蒙古南下,
因此未來兩三天,東北季風增強,看來北部要轉陰雨綿綿。
溫度也會下降到有點冷(以北部感受為主)。
隨著冷高壓南下,西風南支槽被抑制,
但三天過後,南支槽又活躍,華南雲雨帶出現,
但依然被副高擋著,影響台灣有限。
但很快,
不管是西風南支槽,還是副高都擋不住即將而來的冬季大環境而必須沉寂或撤退。
一周尾聲的,冬季大環境下,東北季風直接從西伯利亞輸送冷空氣到達台灣。
台灣溫度直直落。
後續就有待觀察了。
(以上供參囉)
--
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at 2018-07-01T12:15
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