周休假期注意局部較大雨勢~2015/08/14 - 颱風討論

By Gilbert
at 2015-08-14T16:18
at 2015-08-14T16:18
Table of Contents
今天台灣持續位於太平洋高壓邊緣,西南風帶來較多的水氣,
中午過後在山區有較為明顯的熱對流發展,許多地方陸續出現較強的降雨,
同時在台灣海峽上也有降雨雲層逐漸靠近台灣中南部陸地,
顯示台灣上空的大氣狀態呈現相當不穩定的情況。
預估明後天周休假期,大陸華北有短波槽東移,
槽前在長江口一帶有低氣壓形成,逐漸往東移動並且有加深的趨勢,
造成台灣附近的西南風可能會更增強一些,
位於台灣西南邊的降雨雲層今晚起就會逐漸進入迎風面的中南部陸地,帶來陣雨或雷雨,
並且有局部較大雨勢發生的機會,
提醒大家在周末假期這兩天中南部地區應該都很容易有降雨發生,
至於其他地方則是要留意午後熱對流發展帶來的雷雨,同樣也會有局部較大雨勢出現,
如果周末假期有安排外出計畫的朋友務必要多加小心。
http://i.imgur.com/ff3xBZ6.jpg
目前在關島東南方的兩個熱帶擾動已經分別增強為熱帶性低氣壓,
預估在未來24小時內有可能進一步發展為第15號及第16號颱風。
這兩個系統離台灣都還很遠,即使增強為颱風也不會馬上影響台灣的天氣。
我們比較要留意的是西邊的TD-16W,預估它會先朝西到西北西移動,
大約5~6天後,也就是20號左右來到台灣東南方遠海,
這時候高壓的強弱變化,以及大陸北方後續的西風槽線活動都會影響到16W的路徑,
如果西風槽線夠深,讓太平洋高壓減弱的話,
16W就會在關鍵區(圖中紅圈範圍內)逐漸北轉,
但相對的假如太平洋高壓仍強,那麼16W就可能會通過關鍵區後繼續往台灣靠近,
對台灣的威脅會比較大,這方面的不確定仍然很高,後續仍需要持續注意。
至於東邊的17W未來應該會趨向日本南方海面,
影響台灣的可能性相對較低一些,但是同樣有待觀察。
http://i.imgur.com/o7JhwDf.jpg
簡單供參考囉~
--
中午過後在山區有較為明顯的熱對流發展,許多地方陸續出現較強的降雨,
同時在台灣海峽上也有降雨雲層逐漸靠近台灣中南部陸地,
顯示台灣上空的大氣狀態呈現相當不穩定的情況。
預估明後天周休假期,大陸華北有短波槽東移,
槽前在長江口一帶有低氣壓形成,逐漸往東移動並且有加深的趨勢,
造成台灣附近的西南風可能會更增強一些,
位於台灣西南邊的降雨雲層今晚起就會逐漸進入迎風面的中南部陸地,帶來陣雨或雷雨,
並且有局部較大雨勢發生的機會,
提醒大家在周末假期這兩天中南部地區應該都很容易有降雨發生,
至於其他地方則是要留意午後熱對流發展帶來的雷雨,同樣也會有局部較大雨勢出現,
如果周末假期有安排外出計畫的朋友務必要多加小心。
http://i.imgur.com/ff3xBZ6.jpg

目前在關島東南方的兩個熱帶擾動已經分別增強為熱帶性低氣壓,
預估在未來24小時內有可能進一步發展為第15號及第16號颱風。
這兩個系統離台灣都還很遠,即使增強為颱風也不會馬上影響台灣的天氣。
我們比較要留意的是西邊的TD-16W,預估它會先朝西到西北西移動,
大約5~6天後,也就是20號左右來到台灣東南方遠海,
這時候高壓的強弱變化,以及大陸北方後續的西風槽線活動都會影響到16W的路徑,
如果西風槽線夠深,讓太平洋高壓減弱的話,
16W就會在關鍵區(圖中紅圈範圍內)逐漸北轉,
但相對的假如太平洋高壓仍強,那麼16W就可能會通過關鍵區後繼續往台灣靠近,
對台灣的威脅會比較大,這方面的不確定仍然很高,後續仍需要持續注意。
至於東邊的17W未來應該會趨向日本南方海面,
影響台灣的可能性相對較低一些,但是同樣有待觀察。
http://i.imgur.com/o7JhwDf.jpg

簡單供參考囉~
--
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颱風
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