滯留鋒雲系東移,明天天氣仍不穩定~2015/05/04 - 颱風討論

By Ida
at 2015-05-04T16:22
at 2015-05-04T16:22
Table of Contents
進入5月份梅雨季節後的第一道鋒面如預期在昨晚抵達台灣,
不過這一波並不是真正典型的梅雨鋒面,
因為目前從印度洋到南海一帶仍未見到夏季西南季風的蹤影,
所以昨晚抵達台灣的鋒面系統還不能算是真正的梅雨鋒,
但是現在影響台灣的鋒面已經越來越容易伴隨中小尺度對流系統發展,
因此每當有鋒面過境時,出現豪大雨或雷雨的機會也越來越高,
雖然台灣目前求雨若渴,但是面對可能帶來豪大雨的鋒面系統,
仍要隨時提高警覺,並且注意做好防災該有的準備。
昨晚抵達台灣的鋒面迅速東移南壓,今天下午鋒面的前半段已經慢慢脫離台灣附近,
後半段停留在華南,並且延伸到台灣中北部附近,整體的大氣環境仍不穩定,
雖然沒有西南季風帶來豐沛水氣,但是鋒面帶上仍有不小中小尺度對流消消長長。
昨晚到今天上午在中部、北部有一陣比較大的雨勢,山區的降雨量看起來還不錯,
石門水庫集水區也有較多的進帳,
中午過後在中南部山區有熱對流發展降雨,對於中南部的水情也有幫助。
預估明天(5日)持續受到華南滯留鋒面影響,仍陸續會有雲雨系統自華南東移趨向台灣,
中部以北到東北部、東部仍有短暫陣雨或雷雨機會,
山區午後受到熱力作用,熱對流發展機會偏高,中南部前往山區活動的朋友務必注意,
整體天氣還是比較不穩定的型態,外出記得帶傘。
後天(6日)華南滯留鋒面逐漸北抬,台灣附近水氣減少,
但是山區還是容易有午後熱對流雷雨發展的機會,
到山區活動還是要多留意午後的天氣變化。
今年第6號颱紅霞今天凌晨在關島西南方海域生成,
本周內大致會沿著太平洋高壓邊緣往西北西移動,強度也將穩定加強,
周末期間逐漸靠近呂宋島,並且不排除有逐漸北轉的趨勢,
預估本周內對台灣的天氣仍無明顯影響,
但是下周一(11日)是否在北轉後可能影響台灣的天氣值得密切觀察。
對於紅霞目前沒有太多評論,動態變數還是非常大,
倒是ECMWF把紅霞強度預測得有點弱,是否因此導致預測路徑比GFS偏西?
兩個預報之間不論是颱風強度還是北邊的高壓脊變化型態都有差異,值得繼續追蹤~
以上簡單供參考囉~
--
不過這一波並不是真正典型的梅雨鋒面,
因為目前從印度洋到南海一帶仍未見到夏季西南季風的蹤影,
所以昨晚抵達台灣的鋒面系統還不能算是真正的梅雨鋒,
但是現在影響台灣的鋒面已經越來越容易伴隨中小尺度對流系統發展,
因此每當有鋒面過境時,出現豪大雨或雷雨的機會也越來越高,
雖然台灣目前求雨若渴,但是面對可能帶來豪大雨的鋒面系統,
仍要隨時提高警覺,並且注意做好防災該有的準備。
昨晚抵達台灣的鋒面迅速東移南壓,今天下午鋒面的前半段已經慢慢脫離台灣附近,
後半段停留在華南,並且延伸到台灣中北部附近,整體的大氣環境仍不穩定,
雖然沒有西南季風帶來豐沛水氣,但是鋒面帶上仍有不小中小尺度對流消消長長。
昨晚到今天上午在中部、北部有一陣比較大的雨勢,山區的降雨量看起來還不錯,
石門水庫集水區也有較多的進帳,
中午過後在中南部山區有熱對流發展降雨,對於中南部的水情也有幫助。
預估明天(5日)持續受到華南滯留鋒面影響,仍陸續會有雲雨系統自華南東移趨向台灣,
中部以北到東北部、東部仍有短暫陣雨或雷雨機會,
山區午後受到熱力作用,熱對流發展機會偏高,中南部前往山區活動的朋友務必注意,
整體天氣還是比較不穩定的型態,外出記得帶傘。
後天(6日)華南滯留鋒面逐漸北抬,台灣附近水氣減少,
但是山區還是容易有午後熱對流雷雨發展的機會,
到山區活動還是要多留意午後的天氣變化。
今年第6號颱紅霞今天凌晨在關島西南方海域生成,
本周內大致會沿著太平洋高壓邊緣往西北西移動,強度也將穩定加強,
周末期間逐漸靠近呂宋島,並且不排除有逐漸北轉的趨勢,
預估本周內對台灣的天氣仍無明顯影響,
但是下周一(11日)是否在北轉後可能影響台灣的天氣值得密切觀察。
對於紅霞目前沒有太多評論,動態變數還是非常大,
倒是ECMWF把紅霞強度預測得有點弱,是否因此導致預測路徑比GFS偏西?
兩個預報之間不論是颱風強度還是北邊的高壓脊變化型態都有差異,值得繼續追蹤~
以上簡單供參考囉~
--
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