天氣小觀:冬季系統對東亞力道繼續放緩 - 颱風討論

By Adele
at 2023-02-02T19:59
at 2023-02-02T19:59
Table of Contents
後冬時期的最後一個冬季月,冬季系統對東亞力道繼續放緩
甚至對台灣來說,有點鬆動跡象,但還不到失去控制。
北方冷高壓仍然一個接一個南下,但是間隔拉出來了,
因此呈現的溫度變成波浪狀起伏。
模式顯示,南支槽比起之前似乎有點動起來了,
這表示北方冷高壓已經逐漸抑制不住,槽前的暖濕水氣不斷帶往華南,
再往台灣而來,似乎表示等不及要上演春季高空秀。
不過!
夏季系統還沒甦醒,南支槽不會大舉往東移過來,
此外,
冬季系統控場下的東北季風將大氣低層的暖勢力侷限在低緯度,
往年通常要等春季後,太平洋高壓重新振作後,
太平洋高壓西側的南風的勢力與南支槽前的西南風共同揭開的"大氣高空秀"。
此後,大氣高空秀一路上演到梅雨登場壓軸。
回到現在時節,
只能說冬季系統沒那麼針對東亞的侵襲,
反而輪到北美冰風暴連美國中南部都因為北極渦旋空投的冷凍氣團影響。
但今年的北極渦旋不算真的強,
長期模式後冬時期的最後一個冬季月也不會異常強,因此短時間內也不用擔心又有寒流,
夏季迷好安心...
(簡單說說安心安心)
--
甚至對台灣來說,有點鬆動跡象,但還不到失去控制。
北方冷高壓仍然一個接一個南下,但是間隔拉出來了,
因此呈現的溫度變成波浪狀起伏。
模式顯示,南支槽比起之前似乎有點動起來了,
這表示北方冷高壓已經逐漸抑制不住,槽前的暖濕水氣不斷帶往華南,
再往台灣而來,似乎表示等不及要上演春季高空秀。
不過!
夏季系統還沒甦醒,南支槽不會大舉往東移過來,
此外,
冬季系統控場下的東北季風將大氣低層的暖勢力侷限在低緯度,
往年通常要等春季後,太平洋高壓重新振作後,
太平洋高壓西側的南風的勢力與南支槽前的西南風共同揭開的"大氣高空秀"。
此後,大氣高空秀一路上演到梅雨登場壓軸。
回到現在時節,
只能說冬季系統沒那麼針對東亞的侵襲,
反而輪到北美冰風暴連美國中南部都因為北極渦旋空投的冷凍氣團影響。
但今年的北極渦旋不算真的強,
長期模式後冬時期的最後一個冬季月也不會異常強,因此短時間內也不用擔心又有寒流,
夏季迷好安心...
(簡單說說安心安心)
--
Tags:
颱風
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