天氣小觀:未來一周北極渦旋移向北美增強 - 颱風討論

By Jack
at 2017-01-04T22:24
at 2017-01-04T22:24
Table of Contents
天氣小觀:未來一周北極渦旋移向北美增強
前冬時期的北極渦旋偏弱,進入後冬時期,
模式預報,未來一周北極渦旋調整位置,移向加拿大北部,
之後百帕高度場增強至14900米的超級渦旋,
這也是去年入冬以來北極渦旋終於攀上顛峰。
但比起2015-2016的冬季北極渦旋百帕高度場巔峰達14700米,
目前看來仍明顯不及,但也總算成為超級渦旋等級。
北極海冰區大致上全數結冰,
不過最慘的的北大西洋挪威北方海域仍補不起來,
另外白令海北方也少了一塊。
對於亞洲,
隨著北極渦旋重心移往北美,對亞洲支援的冷氣團減少。
然而,亞洲南方這個冬季,副高明顯偏強。
這也造就了有如春天的感覺。
事實上,西風南支槽未來一周持續存在,
從衛星雲圖上可以看到西風南支槽引上來的暖濕空氣雲帶,
一周後期,北極渦旋移向北美後,
殘餘的勢力流向東北亞形成高空冷渦旋,
但西風槽後的冷空氣南下,溫度才會明顯降低。
但後繼無力下,仍未達寒流,甚至未來一周內,冷空氣達冷氣團等級也可能是擦邊球。
接著很快就回溫。
只是回溫後,西風南支槽的華南雲雨帶似乎更活躍了。
只是副高再度發揮影響力,就有賴觀察了。
依舊呼應前一篇天氣小觀結尾,總覺得春天到了。
(以上供參囉)
--
前冬時期的北極渦旋偏弱,進入後冬時期,
模式預報,未來一周北極渦旋調整位置,移向加拿大北部,
之後百帕高度場增強至14900米的超級渦旋,
這也是去年入冬以來北極渦旋終於攀上顛峰。
但比起2015-2016的冬季北極渦旋百帕高度場巔峰達14700米,
目前看來仍明顯不及,但也總算成為超級渦旋等級。
北極海冰區大致上全數結冰,
不過最慘的的北大西洋挪威北方海域仍補不起來,
另外白令海北方也少了一塊。
對於亞洲,
隨著北極渦旋重心移往北美,對亞洲支援的冷氣團減少。
然而,亞洲南方這個冬季,副高明顯偏強。
這也造就了有如春天的感覺。
事實上,西風南支槽未來一周持續存在,
從衛星雲圖上可以看到西風南支槽引上來的暖濕空氣雲帶,
一周後期,北極渦旋移向北美後,
殘餘的勢力流向東北亞形成高空冷渦旋,
但西風槽後的冷空氣南下,溫度才會明顯降低。
但後繼無力下,仍未達寒流,甚至未來一周內,冷空氣達冷氣團等級也可能是擦邊球。
接著很快就回溫。
只是回溫後,西風南支槽的華南雲雨帶似乎更活躍了。
只是副高再度發揮影響力,就有賴觀察了。
依舊呼應前一篇天氣小觀結尾,總覺得春天到了。
(以上供參囉)
--
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