我繞,我繞,我繞繞~2015/07/07 - 颱風討論

By Skylar DavisLinda
at 2015-07-07T17:16
at 2015-07-07T17:16
Table of Contents
今天真是戲劇性的一天,颱風果然是圓的,變化多端,繞到大家都暈了...
昨天提到在大陸華南內陸有西風槽底部切斷所形成的氣旋環流出現,
可能讓蓮花颱風跟著走出一個氣旋式環流的曲線路徑,
沒想到這個大陸上的氣旋影響程度比預期要大得多,
讓蓮花可能走出一個比昨天預估的半徑更小、曲率更大的弧線,
也就是提早往西北甚至西北西偏轉,
這樣一來跟台灣的距離就會拉遠許多,到了下午的預測甚至連暴風圈都碰不到陸地了,
因此氣象局被迫在陸上警報發布僅12小時後就解除了,
這麼短的陸上警報也算是一個少見的狀況。
http://i.imgur.com/9RIRGVD.jpg
未來的預測看起來,蓮花有機會繼續跟大陸上的氣旋環流共舞,
以繞圈圈畫弧線的方式前進,也就是大陸上的氣旋繼續往南移動,蓮花則趨向大陸沿海,
最後兩者有機會產生重疊耦合的現象,
http://i.imgur.com/lAZxgLd.jpg
但也不能排除蓮花出現轉折角度變化更大的繞圈路徑,
這個是接下來值得繼續觀察的現象。
蓮花跟大陸上氣旋環流的整合也讓蓮花的環流越滾越完整,
很像是在搓湯圓一樣,跟昨天相比,蓮花的結構完整很多,強度應該會持續發展加強。
http://i.imgur.com/LIHgO1o.jpg
雖然看起來蓮花陸上警報解除,似乎對台灣直接的威脅降低了,
但是颱風外圍環流還是有機會為南台灣帶來較大的雨勢,包括花東一帶,
海面上的風浪也還是很大,務必小心。
至於大家密切關注的昌鴻,看起來對台灣的確是具有很大的威脅性,
但比較關鍵的變數在於目前位於東海北部到黃海一帶,
高壓邊緣這個明顯的南北向氣流區,如果這個氣流區未來兩天強度持續減弱,
或是往西調整,表示太平洋高壓脊如先前預期的重建,而且有較明顯的東西向伸展,
那麼昌鴻對北台灣的威脅就會嚴重許多,未來值得密切注意。
昌鴻還在長大,未來強度還會增強,靠近台灣時的強度應該會頗為可觀。
至於最東邊的南卡颱風已經默默的長大了,變成一個非常完整成熟的系統,
強度很可能變成強烈颱風等級,不過它在較遠處逐漸北轉的可能性也較大,
對台灣造成威脅的機會較低。
以上簡單供參考囉~
--
昨天提到在大陸華南內陸有西風槽底部切斷所形成的氣旋環流出現,
可能讓蓮花颱風跟著走出一個氣旋式環流的曲線路徑,
沒想到這個大陸上的氣旋影響程度比預期要大得多,
讓蓮花可能走出一個比昨天預估的半徑更小、曲率更大的弧線,
也就是提早往西北甚至西北西偏轉,
這樣一來跟台灣的距離就會拉遠許多,到了下午的預測甚至連暴風圈都碰不到陸地了,
因此氣象局被迫在陸上警報發布僅12小時後就解除了,
這麼短的陸上警報也算是一個少見的狀況。
http://i.imgur.com/9RIRGVD.jpg

未來的預測看起來,蓮花有機會繼續跟大陸上的氣旋環流共舞,
以繞圈圈畫弧線的方式前進,也就是大陸上的氣旋繼續往南移動,蓮花則趨向大陸沿海,
最後兩者有機會產生重疊耦合的現象,
http://i.imgur.com/lAZxgLd.jpg

但也不能排除蓮花出現轉折角度變化更大的繞圈路徑,
這個是接下來值得繼續觀察的現象。
蓮花跟大陸上氣旋環流的整合也讓蓮花的環流越滾越完整,
很像是在搓湯圓一樣,跟昨天相比,蓮花的結構完整很多,強度應該會持續發展加強。
http://i.imgur.com/LIHgO1o.jpg

雖然看起來蓮花陸上警報解除,似乎對台灣直接的威脅降低了,
但是颱風外圍環流還是有機會為南台灣帶來較大的雨勢,包括花東一帶,
海面上的風浪也還是很大,務必小心。
至於大家密切關注的昌鴻,看起來對台灣的確是具有很大的威脅性,
但比較關鍵的變數在於目前位於東海北部到黃海一帶,
高壓邊緣這個明顯的南北向氣流區,如果這個氣流區未來兩天強度持續減弱,
或是往西調整,表示太平洋高壓脊如先前預期的重建,而且有較明顯的東西向伸展,
那麼昌鴻對北台灣的威脅就會嚴重許多,未來值得密切注意。
昌鴻還在長大,未來強度還會增強,靠近台灣時的強度應該會頗為可觀。
至於最東邊的南卡颱風已經默默的長大了,變成一個非常完整成熟的系統,
強度很可能變成強烈颱風等級,不過它在較遠處逐漸北轉的可能性也較大,
對台灣造成威脅的機會較低。
以上簡單供參考囉~
--
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颱風
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