南卡動態~09/06/25 - 颱風討論

By Hedda
at 2009-06-25T22:37
at 2009-06-25T22:37
Table of Contents
今天一天南卡的動態大致如預期
逐漸在高壓邊緣偏南氣流引導下由西北轉北北西移動
速度也明顯加快了起來~快速朝東沙島海域前進
不過速度實在有點太快了~加上原本就不是很好的環境風切干擾
結構並沒有整理起來~LLCC到下午甚至外露而自行北上
南側的對流無法跟上LLCC的移動速度
雖然水氣供應明顯~東北側也有TUTT存在~可是它的強度就是無法增強
未來如果還是這樣的情況~強度要加強就比較困難了
除非速度能夠比較放慢下來~結構才有機會重整
至於未來的動態方面目前已經有了比較明確的可能性
高壓邊緣仍在台灣附近沒錯~今天台灣上空有明顯雷雨發展顯示高壓邊緣就在這邊
但是在台灣以南巴士海峽的位置高壓邊緣有稍微向西凸出一點
使得明天白天颱風來到東沙島一帶後如果速度還是沒放慢~
很可能就一路偏北到北北西撞向汕頭附近沿海或是福建南部沿海
如果速度出現放慢~代表高壓邊緣稍有後退~則颱風路線仍有出現偏轉的機會
關鍵點跟先前提的其實仍是差不多~
只是以晚間的資料來看~走向前者的機會要大一些
對台灣的影響應該也可能會比較小~
不過還是要嚴密觀察明天白天颱風在東沙島海域的變動性
所謂失之毫釐差之千里~在還沒能百分之百確定前仍請大家多加留意~
--
逐漸在高壓邊緣偏南氣流引導下由西北轉北北西移動
速度也明顯加快了起來~快速朝東沙島海域前進
不過速度實在有點太快了~加上原本就不是很好的環境風切干擾
結構並沒有整理起來~LLCC到下午甚至外露而自行北上
南側的對流無法跟上LLCC的移動速度
雖然水氣供應明顯~東北側也有TUTT存在~可是它的強度就是無法增強
未來如果還是這樣的情況~強度要加強就比較困難了
除非速度能夠比較放慢下來~結構才有機會重整
至於未來的動態方面目前已經有了比較明確的可能性
高壓邊緣仍在台灣附近沒錯~今天台灣上空有明顯雷雨發展顯示高壓邊緣就在這邊
但是在台灣以南巴士海峽的位置高壓邊緣有稍微向西凸出一點
使得明天白天颱風來到東沙島一帶後如果速度還是沒放慢~
很可能就一路偏北到北北西撞向汕頭附近沿海或是福建南部沿海
如果速度出現放慢~代表高壓邊緣稍有後退~則颱風路線仍有出現偏轉的機會
關鍵點跟先前提的其實仍是差不多~
只是以晚間的資料來看~走向前者的機會要大一些
對台灣的影響應該也可能會比較小~
不過還是要嚴密觀察明天白天颱風在東沙島海域的變動性
所謂失之毫釐差之千里~在還沒能百分之百確定前仍請大家多加留意~
--
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颱風
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