Re: 天氣概況~2009/10/18~盧碧颱風~ - 颱風討論

By Delia
at 2009-10-18T22:47
at 2009-10-18T22:47
Table of Contents
簡單來看一下盧碧的最新狀況
今天白天大致如預期繼續往東北偏移
主要是西風槽經過颱風以北以及東環高壓氣流的拉動所造成
不過槽線底部的最大渦度區以及位勢下降區逐漸跟颱風錯開
晚間來看已經經過颱風正北方繼續東進~同時槽線也開始淺化
後面一波西風槽從華北移出~移向如預期的偏東~槽底也比較偏高
琉球~台灣到華南沿海一帶為負渦度區~而且空氣相當乾燥~氣流下沉明顯
預期中的反氣旋高壓壩逐漸建立~西環高壓可望跟著重建加強
盧碧颱風今晚會逐漸減慢下來~往東北飄的情況趨緩~轉為緩慢北飄
明天(19號)白天應該會開始回頭往西北西移動
一開始速度不會太快~等到目前華北東進的西風槽進入日本海並且淺化
西環高壓會更顯著~同時東環高壓也會趁勢開始從颱風北面西伸
兩邊高壓逐漸連接~大概從後天(20號)颱風將加速西移
方向上也可能被更往西壓制~甚至偏西南西移動~大致往呂宋北部靠近
強度上在短時間內還有可能再稍微增強
不過今天看下來~颱風西北面的乾區實在太明顯
颱風開始西移後會不會被乾區給削弱強度值得觀察
南側的西南季風當然越往西支持度會越好~
但是乾空氣直接被捲入CDO對颱風的破壞可能會更為明顯
這應該是各氣象單位認為盧碧不再增強的原因
高空輻散外流通道也還是不夠良好~
這已經提過好幾次了~是盧碧始終無法爆發增強的因素
對台灣的影響明天還不會有~最快可能也要等到後天下半天以後
颱風外圍環流靠近~台灣附近環境風速加強~天氣就會開始變化了
以上簡單供參考囉~
http://ppt.cc/LZqK
--
今天白天大致如預期繼續往東北偏移
主要是西風槽經過颱風以北以及東環高壓氣流的拉動所造成
不過槽線底部的最大渦度區以及位勢下降區逐漸跟颱風錯開
晚間來看已經經過颱風正北方繼續東進~同時槽線也開始淺化
後面一波西風槽從華北移出~移向如預期的偏東~槽底也比較偏高
琉球~台灣到華南沿海一帶為負渦度區~而且空氣相當乾燥~氣流下沉明顯
預期中的反氣旋高壓壩逐漸建立~西環高壓可望跟著重建加強
盧碧颱風今晚會逐漸減慢下來~往東北飄的情況趨緩~轉為緩慢北飄
明天(19號)白天應該會開始回頭往西北西移動
一開始速度不會太快~等到目前華北東進的西風槽進入日本海並且淺化
西環高壓會更顯著~同時東環高壓也會趁勢開始從颱風北面西伸
兩邊高壓逐漸連接~大概從後天(20號)颱風將加速西移
方向上也可能被更往西壓制~甚至偏西南西移動~大致往呂宋北部靠近
強度上在短時間內還有可能再稍微增強
不過今天看下來~颱風西北面的乾區實在太明顯
颱風開始西移後會不會被乾區給削弱強度值得觀察
南側的西南季風當然越往西支持度會越好~
但是乾空氣直接被捲入CDO對颱風的破壞可能會更為明顯
這應該是各氣象單位認為盧碧不再增強的原因
高空輻散外流通道也還是不夠良好~
這已經提過好幾次了~是盧碧始終無法爆發增強的因素
對台灣的影響明天還不會有~最快可能也要等到後天下半天以後
颱風外圍環流靠近~台灣附近環境風速加強~天氣就會開始變化了
以上簡單供參考囉~
http://ppt.cc/LZqK
--
Tags:
颱風
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