降雨逐漸趨緩~微弱東北風南下~102/09/01 - 颱風討論

By Lydia
at 2013-09-01T15:52
at 2013-09-01T15:52
Table of Contents
好不容易才送走康芮颱風~結果這兩天的鋒面大雨又讓我忙到不行...囧
地面鋒面以及相關的低壓槽如預期在昨天逐漸到達~並且緩慢東移南壓經過全臺灣~
移動的速度頗慢~主要是冷空氣不夠強以及東邊有太平洋高壓阻擋的關係~
鋒面還沒到之前~西南風水氣持續轟炸中南部地區~
鋒面到達後~底層較涼的弱東北風來到北臺灣~暖濕空氣舉升劇烈~
在北部上空也激發了旺盛的對流系統~造成昨天下午起台北基隆宜蘭等地的強降雨~
同時存在於低壓槽中的一個小渦旋搭上對流釋放的潛熱能量慢慢的加強起來~
在北台灣近海發展成具有暖心性質的熱帶低壓~
北台灣的降雨更為明顯且持續~
這個低壓發展起來後~低壓槽在海峽的部分往南壓~
一度有類似颱風尾~西北風跟西南風輻合的雨帶在中南部外海建立~
幸好這個熱帶低壓還不夠強~雨帶並不持續停留~強度也不強~
中南部的降雨雖然還在下~但並沒有再度加強~
目前低壓槽已經大致通過台灣~但是東北方海面上的熱帶低壓移動緩慢~
外圍的雨帶仍然不斷造成迎風面地區包括桃園以北到宜蘭一帶的降雨現象~
較乾的北風則已經逐漸進入海峽並且向南擴展~取代潮濕的西南風~中南部降雨漸緩~
迎風面的降雨要停下來可能要等到傍晚以後~熱帶低壓更遠離一點~較乾空氣抵達才行~
中南部地區目前大多數地方都已經轉為多雲到陰~總算擺脫雨神的陰影~
預估東北方這個熱帶低壓96W將持續向東北移動~
逐漸會納入西風槽底部~有可能在正渦平流加強以及輻散好轉的狀況下加強~
JMA發出颱風形成預警~未來24小時內有機會成為第17號颱風結梗(原本的桃芝)
由於它是順著槽前氣流以及太平洋高壓西北邊緣向東北遠離~對臺灣影響有限~
相對的因為它的出現~明天開始其左側環流帶來大陸上弱高壓的微弱東北風~
較乾而微涼的北來氣流接手~台灣的天氣整體都會變得比較穩定~
迎風面地區包括北部東半部的雲量較多一些~夜晚清晨有局部地形降雨機會~
其他地方則大致以多雲到晴為主~
中南部山區午後仍有零星局部熱對流發展的可能性~
這種比較穩定的天氣大概可以持續到周三(4號)左右~
因為吹北風的關係~白天各地的溫度也不會太高~
北台灣高溫約28~30度左右~中南部較高一點~約31~32度~
花東地區約30度上下~整體來說有點秋高氣爽的感覺~
夜晚清晨在中北部有點微涼~低溫約22~24度間~
中部地區的日夜溫差較大一點~早出晚歸的朋友可能要注意一下~
周四以後北方來的空氣漸弱~太平洋高壓西伸加強~
預估又會慢慢回到典型的夏季型態天氣了~也就是午後山區有雷雨的天氣~
溫度也將再度回升~回到比較炎熱的情況~
以上簡單供參考囉~
P.S 感謝昨天來參加版聚的朋友們~因為值夜班的關係~沒有精神跟大家好好聊聊~囧~
原本還想講講潭美跟康芮~但實在沒有時間做整理了~Orz
同時也感謝主辦人痕大的用心~還有協力人員的大力幫忙~
希望下一次大家也能踴躍參加!!
--
地面鋒面以及相關的低壓槽如預期在昨天逐漸到達~並且緩慢東移南壓經過全臺灣~
移動的速度頗慢~主要是冷空氣不夠強以及東邊有太平洋高壓阻擋的關係~
鋒面還沒到之前~西南風水氣持續轟炸中南部地區~
鋒面到達後~底層較涼的弱東北風來到北臺灣~暖濕空氣舉升劇烈~
在北部上空也激發了旺盛的對流系統~造成昨天下午起台北基隆宜蘭等地的強降雨~
同時存在於低壓槽中的一個小渦旋搭上對流釋放的潛熱能量慢慢的加強起來~
在北台灣近海發展成具有暖心性質的熱帶低壓~
北台灣的降雨更為明顯且持續~
這個低壓發展起來後~低壓槽在海峽的部分往南壓~
一度有類似颱風尾~西北風跟西南風輻合的雨帶在中南部外海建立~
幸好這個熱帶低壓還不夠強~雨帶並不持續停留~強度也不強~
中南部的降雨雖然還在下~但並沒有再度加強~
目前低壓槽已經大致通過台灣~但是東北方海面上的熱帶低壓移動緩慢~
外圍的雨帶仍然不斷造成迎風面地區包括桃園以北到宜蘭一帶的降雨現象~
較乾的北風則已經逐漸進入海峽並且向南擴展~取代潮濕的西南風~中南部降雨漸緩~
迎風面的降雨要停下來可能要等到傍晚以後~熱帶低壓更遠離一點~較乾空氣抵達才行~
中南部地區目前大多數地方都已經轉為多雲到陰~總算擺脫雨神的陰影~
預估東北方這個熱帶低壓96W將持續向東北移動~
逐漸會納入西風槽底部~有可能在正渦平流加強以及輻散好轉的狀況下加強~
JMA發出颱風形成預警~未來24小時內有機會成為第17號颱風結梗(原本的桃芝)
由於它是順著槽前氣流以及太平洋高壓西北邊緣向東北遠離~對臺灣影響有限~
相對的因為它的出現~明天開始其左側環流帶來大陸上弱高壓的微弱東北風~
較乾而微涼的北來氣流接手~台灣的天氣整體都會變得比較穩定~
迎風面地區包括北部東半部的雲量較多一些~夜晚清晨有局部地形降雨機會~
其他地方則大致以多雲到晴為主~
中南部山區午後仍有零星局部熱對流發展的可能性~
這種比較穩定的天氣大概可以持續到周三(4號)左右~
因為吹北風的關係~白天各地的溫度也不會太高~
北台灣高溫約28~30度左右~中南部較高一點~約31~32度~
花東地區約30度上下~整體來說有點秋高氣爽的感覺~
夜晚清晨在中北部有點微涼~低溫約22~24度間~
中部地區的日夜溫差較大一點~早出晚歸的朋友可能要注意一下~
周四以後北方來的空氣漸弱~太平洋高壓西伸加強~
預估又會慢慢回到典型的夏季型態天氣了~也就是午後山區有雷雨的天氣~
溫度也將再度回升~回到比較炎熱的情況~
以上簡單供參考囉~
P.S 感謝昨天來參加版聚的朋友們~因為值夜班的關係~沒有精神跟大家好好聊聊~囧~
原本還想講講潭美跟康芮~但實在沒有時間做整理了~Orz
同時也感謝主辦人痕大的用心~還有協力人員的大力幫忙~
希望下一次大家也能踴躍參加!!
--
Tags:
颱風
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