天氣速觀:西風帶正北氣流在華北+西北氣流輻冷 - 颱風討論
By Madame
at 2023-03-05T07:45
at 2023-03-05T07:45
Table of Contents
天氣速觀:西風帶正北氣流在華北,西北氣流輻冷,台灣各地冷度達冷氣團
目前北極渦旋北亞,中心百帕高度場15200米以下(想像920百帕強烈氣旋),
強度不算頂強,更不是超級渦旋等級,但佔據北亞位置,勢力範圍還是能夠擴及東北亞,
向下支援的大氣中層西風帶系統,西風帶正北氣流出現在華北,
於是,
西風帶西北氣流順利吹向台灣,輻射冷卻下,清晨各地達標冷氣團,
部分平地在山風的冷流氣團的堆積下,更甚低於10度。
然而,這只是北極渦旋瞄準東亞的剛開始,
長期模式依舊預報,北極渦旋兩次瞄準東亞,第一次就是目前3月初,第二次3月中,
甚至,不排出3月下旬還有一次,
是否,
整個3月,北極渦旋就一定要如此酷寒愛東亞呢。
夏季迷在這情感之春,只能無奈哼著,寒冬過了又是春天 情花卡水欲開無香味。
模式預報未來一週,
這兩天北極渦旋勢力到東北亞,
在華北西風帶正北氣流沉降,東北亞鄰海堆積冷高壓,東北季風帶來冷度,
同時,
台灣上空是西北氣流沉降,西北氣流帶來晴朗度,晴冷成為台灣今明天氣。
不過稍有差異的是,
東北季風從海路過來,只是因風速不夠使海氣耦合不明顯,基本還是帶有水氣;
此外,
巴士海峽高空並不是極鋒噴流的西北氣流,依舊維持著副熱帶噴流的西南氣流。
因此,
高空水氣也可以偷渡到台灣南部。
週二以後,東亞西風長波槽漸漸淺縮,雖然只是暫時,但長波系統的週期都是數天,
因此,後期溫度會漸漸回暖,是第一次道地的春暖了,只是看不到太平洋高壓崛起,
看來太平洋高壓崛起肯定要3月下旬以後了。
(以上供參,倒春寒)
<補>
今天連巴士海峽高空都變成西北氣流,西風槽壓得很用力,通過巴士海峽沒有淺化,
全台西北氣流變成乾燥晴朗囉!
--
目前北極渦旋北亞,中心百帕高度場15200米以下(想像920百帕強烈氣旋),
強度不算頂強,更不是超級渦旋等級,但佔據北亞位置,勢力範圍還是能夠擴及東北亞,
向下支援的大氣中層西風帶系統,西風帶正北氣流出現在華北,
於是,
西風帶西北氣流順利吹向台灣,輻射冷卻下,清晨各地達標冷氣團,
部分平地在山風的冷流氣團的堆積下,更甚低於10度。
然而,這只是北極渦旋瞄準東亞的剛開始,
長期模式依舊預報,北極渦旋兩次瞄準東亞,第一次就是目前3月初,第二次3月中,
甚至,不排出3月下旬還有一次,
是否,
整個3月,北極渦旋就一定要如此酷寒愛東亞呢。
夏季迷在這情感之春,只能無奈哼著,寒冬過了又是春天 情花卡水欲開無香味。
模式預報未來一週,
這兩天北極渦旋勢力到東北亞,
在華北西風帶正北氣流沉降,東北亞鄰海堆積冷高壓,東北季風帶來冷度,
同時,
台灣上空是西北氣流沉降,西北氣流帶來晴朗度,晴冷成為台灣今明天氣。
不過稍有差異的是,
東北季風從海路過來,只是因風速不夠使海氣耦合不明顯,基本還是帶有水氣;
此外,
巴士海峽高空並不是極鋒噴流的西北氣流,依舊維持著副熱帶噴流的西南氣流。
因此,
高空水氣也可以偷渡到台灣南部。
週二以後,東亞西風長波槽漸漸淺縮,雖然只是暫時,但長波系統的週期都是數天,
因此,後期溫度會漸漸回暖,是第一次道地的春暖了,只是看不到太平洋高壓崛起,
看來太平洋高壓崛起肯定要3月下旬以後了。
(以上供參,倒春寒)
<補>
今天連巴士海峽高空都變成西北氣流,西風槽壓得很用力,通過巴士海峽沒有淺化,
全台西北氣流變成乾燥晴朗囉!
--
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