Re: 天氣概況~2013/06/04 - 颱風討論

By Xanthe
at 2013-06-04T14:48
at 2013-06-04T14:48
Table of Contents
好一個小範圍的中小尺度旺盛熱對流系統~XD
開始下雨時人正好在外面~前後不到10分鐘就從有陽光的天氣變成大雷雨~
初步看了一下資料~一開始是在北部山區有對流系統出現~
然後很快的向台北盆地內移動並且加強~強度最強一度超過60dbz
整個發展過程有點像上週的另一場午後熱對流~
不過今天的熱對流可說是直接命中市區~大家的感受也特別深~
對流強度夠強~雲中的冰晶不斷上下翻滾成長為大冰塊~
上升氣流撐不住冰塊後就開始往下掉~落地前還沒有融化成水就變成冰雹現象~
有冰雹也表示伴隨降水而下的下衝流很明顯~
路樹倒塌或折斷~屋頂被吹翻等應該都跟強下衝流有關~
T版主在上一篇的推文中說的沒錯~
龍捲風跟強降雨通常不會一起發生~
因為龍捲風的存在表示上升氣流非常劇烈~不管是水滴還是冰塊應該都會懸在半空中~
真正降水的區域反而是會出現在盛行風的下游~也就是在強對流系統移動方向的前方~
目前來看這波熱對流已經移出市區~
各地山區則還有旺盛熱對流持續在發展降雨中~
請大家還是要特別注意一下~尤其是山區的朋友~
供參考囉~
--
開始下雨時人正好在外面~前後不到10分鐘就從有陽光的天氣變成大雷雨~
初步看了一下資料~一開始是在北部山區有對流系統出現~
然後很快的向台北盆地內移動並且加強~強度最強一度超過60dbz
整個發展過程有點像上週的另一場午後熱對流~
不過今天的熱對流可說是直接命中市區~大家的感受也特別深~
對流強度夠強~雲中的冰晶不斷上下翻滾成長為大冰塊~
上升氣流撐不住冰塊後就開始往下掉~落地前還沒有融化成水就變成冰雹現象~
有冰雹也表示伴隨降水而下的下衝流很明顯~
路樹倒塌或折斷~屋頂被吹翻等應該都跟強下衝流有關~
T版主在上一篇的推文中說的沒錯~
龍捲風跟強降雨通常不會一起發生~
因為龍捲風的存在表示上升氣流非常劇烈~不管是水滴還是冰塊應該都會懸在半空中~
真正降水的區域反而是會出現在盛行風的下游~也就是在強對流系統移動方向的前方~
目前來看這波熱對流已經移出市區~
各地山區則還有旺盛熱對流持續在發展降雨中~
請大家還是要特別注意一下~尤其是山區的朋友~
供參考囉~
--
Tags:
颱風
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