西南氣流北上,注意豪大雨~2014/08/07 - 颱風討論

By Callum
at 2014-08-07T19:51
at 2014-08-07T19:51
Table of Contents
如同上一篇文章所說的,哈隆颱風北上,不直接影響台灣,
但是真正可怕的西南氣流也跟先前預期的一樣,逐漸北上靠近台灣,
西南氣流相關的雲雨區昨天就已經在台灣海峽南部蠢蠢欲動,
不過昨天白天進來的水氣還不多,昨晚開始水氣慢慢開始隨風叩關,
南部沿海的降雨昨晚起增多,一直到今天白天南部的天氣仍然很不穩定,
尤其是配合午後熱力作用,熱對流的發展算是頗為旺盛,
目前來看明天到周末期間哈隆颱風會繼續北上,侵襲西日本地區,
計畫前往九州、四國或是本州西部的朋友要多加注意,
哈隆北上後,西南氣流風速較強的部份也會更加北上,
風力較強,輸送的水氣就會更多,持續性也會更好,
因此提醒中部、南部的朋友明天開始要特別注意豪大雨發生的情況,
特別是南部地區,受影響的情況比中部要更嚴重一些,
一整天斷斷續續都會有陣雨或雷雨,出現劇烈降雨的機會頗高
日累積雨量達到大雨或豪雨等級以上的可能性也很大,
北部跟東半部位於背風面,需要注意的是午後大雷雨的狀況,
局部地區也可能會達到大雨或豪雨等級的雨量,
預估這樣的西南氣流不但會持續到周末期間(9~10日),
甚至還有可能一直持續到下周三或周四,
主要是颱風北上後雖然很快會遠離,但是台灣仍會有好幾天都位於太平洋高壓邊緣,
高壓型態正好有利於西南風吹向台灣,加上大陸內陸是廣泛的低壓帶,
台灣位於高低壓的交界處,風速也就持續較強,
這種型態不變的話,降雨比較大的狀況就會持續比較長的時間,
想要結束的話,就必須等到太平洋高壓明顯西伸加強北抬,狀況才會改變,
這個大概就要等到下周三或周四之後了,
以上先簡單供參考,再度提醒大家注意未來幾天西南氣流可能帶來的較大雨勢囉~
--
但是真正可怕的西南氣流也跟先前預期的一樣,逐漸北上靠近台灣,
西南氣流相關的雲雨區昨天就已經在台灣海峽南部蠢蠢欲動,
不過昨天白天進來的水氣還不多,昨晚開始水氣慢慢開始隨風叩關,
南部沿海的降雨昨晚起增多,一直到今天白天南部的天氣仍然很不穩定,
尤其是配合午後熱力作用,熱對流的發展算是頗為旺盛,
目前來看明天到周末期間哈隆颱風會繼續北上,侵襲西日本地區,
計畫前往九州、四國或是本州西部的朋友要多加注意,
哈隆北上後,西南氣流風速較強的部份也會更加北上,
風力較強,輸送的水氣就會更多,持續性也會更好,
因此提醒中部、南部的朋友明天開始要特別注意豪大雨發生的情況,
特別是南部地區,受影響的情況比中部要更嚴重一些,
一整天斷斷續續都會有陣雨或雷雨,出現劇烈降雨的機會頗高
日累積雨量達到大雨或豪雨等級以上的可能性也很大,
北部跟東半部位於背風面,需要注意的是午後大雷雨的狀況,
局部地區也可能會達到大雨或豪雨等級的雨量,
預估這樣的西南氣流不但會持續到周末期間(9~10日),
甚至還有可能一直持續到下周三或周四,
主要是颱風北上後雖然很快會遠離,但是台灣仍會有好幾天都位於太平洋高壓邊緣,
高壓型態正好有利於西南風吹向台灣,加上大陸內陸是廣泛的低壓帶,
台灣位於高低壓的交界處,風速也就持續較強,
這種型態不變的話,降雨比較大的狀況就會持續比較長的時間,
想要結束的話,就必須等到太平洋高壓明顯西伸加強北抬,狀況才會改變,
這個大概就要等到下周三或周四之後了,
以上先簡單供參考,再度提醒大家注意未來幾天西南氣流可能帶來的較大雨勢囉~
--
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