短波槽不斷,春雨天氣持續~2016/01/14 - 颱風討論

By Kyle
at 2016-01-14T15:50
at 2016-01-14T15:50
Table of Contents
今天台灣位於水氣較少的空檔區,空氣比較乾,天氣也相對穩定,
不過下一波的天氣系統很快就會影響台灣,
往西邊的華南上空看,大片的雲雨帶又再度建立起來,
這是中層暖濕空氣在底層冷空氣上方爬升的所造成的雲雨區,
加上北側有短波槽正在東移南壓,
雲雨區中的冷暖介面上逐漸會有低壓波動發展,並且建立鋒面系統,
因為台灣附近目前都是溫度較低的空氣,
因此就鋒面的定義來說,並沒有特別強的溫度梯度,所以僅是微弱的鋒面,
不過鋒面不強並不代表降雨就會比較少,
華南這些雲層的發展依然頗為厚實,配合鋒面通過台灣時仍會帶來雨勢,
而且應該是全台都有,明天(15日)清晨前各地陸續就可能會開始下雨了,
白天期間降雨漸趨明顯,明晚的選前之夜各地都可能是有陣雨的天氣型態,
如果要外出務必要記得攜帶雨具。
這波微弱鋒面周六投票日(16日)當天會逐漸東移離開台灣,降雨的狀況減少,
不過東北季風仍在,因此北部、東半部目前來看仍是有短暫陣雨的天氣型態,
中部南部則是雨後轉為多雲或陰的天氣。
到了周六晚間,大陸上空另一個較強較深厚的短波槽東移,
台灣附近又會有一次低壓波動以及鋒面生成建立的過程,
這一次的鋒生會比較明顯,鋒面強度強,冷暖空氣對峙較為劇烈,
因此鋒面雲雨帶發展應該會比較完整,甚至不排除有對流胞出現的可能性,
預估周六深夜過後到周日(17日)清晨前,西半部就逐漸會開始下雨,
接著逐漸擴展到全台灣,週日(17日)鋒面通過,台灣各地都將會是有陣雨的天氣型態,
會不會有較強的對流發展帶來較大的雨勢,甚至是雷雨的發生都值得密切觀察,
特別是西半部地區,預估降雨至少會持續一整天,
打算安排假日活動的朋友務必要多加注意。
溫度方面,明後兩天仍然維持北偏涼,南稍暖的溫度分布,
北台灣一整天涼涼冷冷,中南部的的溫度比較有日夜變化,早出晚歸的朋友請多注意。
週日鋒面通過後,下周一(18日)起冷空氣南下的幅度會比較大,
溫度往下降的幅度可能會比這幾天要更大一些,尤其是北台灣的感受更為明顯,
下周的溫度變化也需要多加留意。
值得一提的是,高山地區這幾天溫度都偏低,
只要水氣足夠,出現雪或冰霰的機會不低,
明天進來的這一波鋒面雲層就可能再度為高山帶來降雪機會。
以上簡單供參考囉~
http://i.imgur.com/pXSqgBZ.jpg
--
不過下一波的天氣系統很快就會影響台灣,
往西邊的華南上空看,大片的雲雨帶又再度建立起來,
這是中層暖濕空氣在底層冷空氣上方爬升的所造成的雲雨區,
加上北側有短波槽正在東移南壓,
雲雨區中的冷暖介面上逐漸會有低壓波動發展,並且建立鋒面系統,
因為台灣附近目前都是溫度較低的空氣,
因此就鋒面的定義來說,並沒有特別強的溫度梯度,所以僅是微弱的鋒面,
不過鋒面不強並不代表降雨就會比較少,
華南這些雲層的發展依然頗為厚實,配合鋒面通過台灣時仍會帶來雨勢,
而且應該是全台都有,明天(15日)清晨前各地陸續就可能會開始下雨了,
白天期間降雨漸趨明顯,明晚的選前之夜各地都可能是有陣雨的天氣型態,
如果要外出務必要記得攜帶雨具。
這波微弱鋒面周六投票日(16日)當天會逐漸東移離開台灣,降雨的狀況減少,
不過東北季風仍在,因此北部、東半部目前來看仍是有短暫陣雨的天氣型態,
中部南部則是雨後轉為多雲或陰的天氣。
到了周六晚間,大陸上空另一個較強較深厚的短波槽東移,
台灣附近又會有一次低壓波動以及鋒面生成建立的過程,
這一次的鋒生會比較明顯,鋒面強度強,冷暖空氣對峙較為劇烈,
因此鋒面雲雨帶發展應該會比較完整,甚至不排除有對流胞出現的可能性,
預估周六深夜過後到周日(17日)清晨前,西半部就逐漸會開始下雨,
接著逐漸擴展到全台灣,週日(17日)鋒面通過,台灣各地都將會是有陣雨的天氣型態,
會不會有較強的對流發展帶來較大的雨勢,甚至是雷雨的發生都值得密切觀察,
特別是西半部地區,預估降雨至少會持續一整天,
打算安排假日活動的朋友務必要多加注意。
溫度方面,明後兩天仍然維持北偏涼,南稍暖的溫度分布,
北台灣一整天涼涼冷冷,中南部的的溫度比較有日夜變化,早出晚歸的朋友請多注意。
週日鋒面通過後,下周一(18日)起冷空氣南下的幅度會比較大,
溫度往下降的幅度可能會比這幾天要更大一些,尤其是北台灣的感受更為明顯,
下周的溫度變化也需要多加留意。
值得一提的是,高山地區這幾天溫度都偏低,
只要水氣足夠,出現雪或冰霰的機會不低,
明天進來的這一波鋒面雲層就可能再度為高山帶來降雪機會。
以上簡單供參考囉~
http://i.imgur.com/pXSqgBZ.jpg

--
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