天氣小觀:期待連陽明山降雪的天氣型態嗎 - 颱風討論

By Gilbert
at 2016-01-17T20:51
at 2016-01-17T20:51
Table of Contents
天氣小觀:期待連陽明山降雪的天氣型態嗎
開頭其實很簡單,未來一周,冬季迷要興奮的,因為有精采冬季大氣,(夏季迷哭哭),
其實就是:即將出現今年入冬以來最強冷氣團將在周末來襲,
而且目前模式預報看好是一波超級寒流。
進入跨年後之冬,冷氣團勢力比起跨年前之冬,更加兇悍且富攻擊性。
北極冰庫釋放起源於去年12月底的北大西洋風暴進入北極。
未來預報的這波超級寒流,則起源於先前從北極進入中亞的阻塞高壓。
讓整個東亞大槽重新調整,
尤其東北亞高空冷渦旋出現,極地超級冷凍氣團大量集中在東北亞,
對於東亞出現大冰凍的條件已經到了:萬事俱備,只欠東風。
而這個東風,未來一周出現, 中亞西風大脊東移,
對應東亞西風大槽增強延伸,一口氣把東北亞超級冷凍氣團往南帶到東亞。
東亞從上到下陷入超級大寒凍。
模式預報,東亞高空冷渦旋延直接從中國東北、韓國殺到日本海,
在一周後期延伸的西風大槽從從東西橫向轉直變成東北東-西南西橫向,
且槽區非常大,日本海伸向東亞沿海到華中、華南,當然也包括了台灣。
槽後對應的地面冷高壓,從西伯利亞直接往南衝向華北。
由於地面冷高壓從西伯利亞殺下來,寒流軸沿著東亞沿海下來,
台灣北部變成苦主,而且是非常苦(同緯度最低溫的大苦主)
模式預報竟然跑出850帕-6度線到達台灣北部。
台灣北部-6度線通過是一個甚麼概念,就是水氣夠的話,陽明山白雪紛飛的概念。
而副熱帶高壓呢:恐將斷裂,雖然,副高牆仍試圖阻擋,但這次看來會不敵而斷裂。
因此,許多模式都預報,台灣會出現寒流。
不過如果要考慮陽明山降雪,除了溫度,還要考慮濕度,
如果東北季風沿著東亞沿岸三海南下,則偏向潮濕,
如果東北季風從華中或華南出海南下,則偏向乾燥。(地面高壓主中心一口氣衝下來)
而高空氣流如果全面轉西北,則偏向乾燥,
如果有兩股(例如:西南-西北)氣流輻合,則偏向潮濕。
以上都是本周末的那波最強冷氣團南下的形勢,
然而,本周開始,冬季的大氣早就上演多場戲碼,
首先是明天起的第一波冷氣團就要打頭陣,冷高壓從西伯利亞往蒙古再往東南移動,
帶來的東北季風路徑多經過東亞沿海,因此台灣北部偏向潮濕,容易降雨。
緊接著在最強冷氣團/超級寒流南下前,冷氣團前緣引起副高的強烈反彈,
產生強烈的鋒面,影響全台出現明顯降雨。
尤其台灣南部高屏出現豪大雨機率不低。(鋒面通過時,高空有低層西南風噴流)
看來下周末是非常精彩的冬季大戲。(不知道是不是有些人會懷念單純的夏季大氣)
(以上供參囉)
--
開頭其實很簡單,未來一周,冬季迷要興奮的,因為有精采冬季大氣,(夏季迷哭哭),
其實就是:即將出現今年入冬以來最強冷氣團將在周末來襲,
而且目前模式預報看好是一波超級寒流。
進入跨年後之冬,冷氣團勢力比起跨年前之冬,更加兇悍且富攻擊性。
北極冰庫釋放起源於去年12月底的北大西洋風暴進入北極。
未來預報的這波超級寒流,則起源於先前從北極進入中亞的阻塞高壓。
讓整個東亞大槽重新調整,
尤其東北亞高空冷渦旋出現,極地超級冷凍氣團大量集中在東北亞,
對於東亞出現大冰凍的條件已經到了:萬事俱備,只欠東風。
而這個東風,未來一周出現, 中亞西風大脊東移,
對應東亞西風大槽增強延伸,一口氣把東北亞超級冷凍氣團往南帶到東亞。
東亞從上到下陷入超級大寒凍。
模式預報,東亞高空冷渦旋延直接從中國東北、韓國殺到日本海,
在一周後期延伸的西風大槽從從東西橫向轉直變成東北東-西南西橫向,
且槽區非常大,日本海伸向東亞沿海到華中、華南,當然也包括了台灣。
槽後對應的地面冷高壓,從西伯利亞直接往南衝向華北。
由於地面冷高壓從西伯利亞殺下來,寒流軸沿著東亞沿海下來,
台灣北部變成苦主,而且是非常苦(同緯度最低溫的大苦主)
模式預報竟然跑出850帕-6度線到達台灣北部。
台灣北部-6度線通過是一個甚麼概念,就是水氣夠的話,陽明山白雪紛飛的概念。
而副熱帶高壓呢:恐將斷裂,雖然,副高牆仍試圖阻擋,但這次看來會不敵而斷裂。
因此,許多模式都預報,台灣會出現寒流。
不過如果要考慮陽明山降雪,除了溫度,還要考慮濕度,
如果東北季風沿著東亞沿岸三海南下,則偏向潮濕,
如果東北季風從華中或華南出海南下,則偏向乾燥。(地面高壓主中心一口氣衝下來)
而高空氣流如果全面轉西北,則偏向乾燥,
如果有兩股(例如:西南-西北)氣流輻合,則偏向潮濕。
以上都是本周末的那波最強冷氣團南下的形勢,
然而,本周開始,冬季的大氣早就上演多場戲碼,
首先是明天起的第一波冷氣團就要打頭陣,冷高壓從西伯利亞往蒙古再往東南移動,
帶來的東北季風路徑多經過東亞沿海,因此台灣北部偏向潮濕,容易降雨。
緊接著在最強冷氣團/超級寒流南下前,冷氣團前緣引起副高的強烈反彈,
產生強烈的鋒面,影響全台出現明顯降雨。
尤其台灣南部高屏出現豪大雨機率不低。(鋒面通過時,高空有低層西南風噴流)
看來下周末是非常精彩的冬季大戲。(不知道是不是有些人會懷念單純的夏季大氣)
(以上供參囉)
--
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