一分鐘報天氣/週三(03/16日) 週三週四各地仍暖早晚偏涼 週四下半天至週五鋒面通過

明天天氣如何?

今天(15日)北方有道鋒面快速通過,主要的鋒面結構偏北沒有影響到台灣,不過仍有帶動一小股東北風從中國沿岸南下,上半天各地還不受影響,最高溫都有來到29-30度,南部有達到32-33度,仍是明顯偏暖、有點熱的感覺,午後東北風順著海風環流吹進桃竹苗地區,溫度下滑不少,東北風也帶來了一些低雲移入沿岸地區,天氣上有些小變化。

很快的晚間風向就會轉為偏東風,明天(16日)則會有點東南風,各地的天氣型態沒有明顯的改變,不過預估竹苗地區仍受海風調節,沿岸白天的溫度上升幅度仍較小感受不會太熱,台北盆地至西半側、桃園有氣流過山、沉降增溫的作用,感受上會更為悶熱,明晚開始南方有較多的水氣北上,起霧機率會再提高一些。

週四風向再度轉偏南到西南風,帶來更多的水氣,清晨陰涼處返潮的情況會比較明顯,當天隨著長江流域的氣旋發展、東移,台灣上空的大氣穩定度也會跟著降低,午後山區有對流發展帶來局部短暫雨的機會,傍晚鋒面接近,海峽也開始有小尺度對流發展,有可能影響到西北側沿岸的天氣,預計週四晚間到週五上半天受到鋒面通過影響,中北部將有局部短暫陣雨或雷雨,南部也有些短暫雨的機會,隨著季節變化,降雨系統的對流性越來越明顯,降雨強度、雷電發生機率逐漸提高,週四五這段時間要留意天氣變化。

以上氣象由天氣風險/柯聿寧提供

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