未來數天注意午後雷雨~2015/09/02 - 颱風討論

By Gilbert
at 2015-09-02T14:48
at 2015-09-02T14:48
Table of Contents
隨著太平洋高壓緩慢增強,滯留鋒面位置逐漸北抬,
昨天開始台灣的降雨型態其實就已經開始改變了,
從外海移入的對流雲系降雨轉變為午後本島發展的熱對流降雨為主,
今天也是一樣,中午過後各地山區陸續有熱對流發展,
部分地區的雨勢還是蠻大的,熱對流的發展常常會衝過頭,很難預報跟掌握。
目前來看,未來這幾天一直到本周末(5~6號),
太平洋高壓大概都可以延伸到台灣附近,滯留鋒面持續北抬而且逐漸減弱,
預估天氣大致都是夏季型態,主要的變化在於山區午後發展的熱對流雷雨,
並且仍可能出現局部性的大雨,前往山區活動的朋友務必要小心中午過後的天氣情況,
平地的朋友中午過後要外出也要多留意一下實際的天氣。
溫度會逐漸變熱起來,白天高溫又會慢慢回升到32~33度以上,
部分地區可達34~35度,又會回到夏天的感覺。
下一波的天氣變化預估仍要等到下周一(7日)左右,到時候北邊有西風槽東移,
前方的冷鋒將會南下,有機會掠過台灣上空而造成天氣的改變,
並也可能在鋒面過後跟著有弱東北季風南下,應該會是正式入秋的第一波系統,
不過預報仍可能有變動,還是要持續觀察。
至於今年第17號颱風奇羅還是非常遙遠,基本上對台灣天氣沒有任何影響,
不過它未來的強度發展十分看好,
而且繼續往西移動的過程中也可能帶動低緯度熱帶輻合區內其他擾動的發展,
後續的變化仍然值得密切觀察。
今天早上同事畫了兩張圖很有意思,
因為8月底這連續一週的陰雨,讓台北今年8月的平均溫度一口氣往下大幅拉低,
甚至變成了自2001年以來最低的一年,
相對於去年的台北才剛經歷過自2001年以來最熱的8月,
只能說現在的氣候真的是變化多端,捉摸不定阿.....
http://i.imgur.com/9W0ZnN1.jpg
8月底的台北有多涼呢? 比9月的平均溫度27.4度還要低,而且還連續了好幾天,
更有趣的是這個低溫看起來跟冷空氣沒有太大關係,降雨太多才是主要的成因....
http://i.imgur.com/rzNN6ty.jpg
以上簡單供參考囉~
--
昨天開始台灣的降雨型態其實就已經開始改變了,
從外海移入的對流雲系降雨轉變為午後本島發展的熱對流降雨為主,
今天也是一樣,中午過後各地山區陸續有熱對流發展,
部分地區的雨勢還是蠻大的,熱對流的發展常常會衝過頭,很難預報跟掌握。
目前來看,未來這幾天一直到本周末(5~6號),
太平洋高壓大概都可以延伸到台灣附近,滯留鋒面持續北抬而且逐漸減弱,
預估天氣大致都是夏季型態,主要的變化在於山區午後發展的熱對流雷雨,
並且仍可能出現局部性的大雨,前往山區活動的朋友務必要小心中午過後的天氣情況,
平地的朋友中午過後要外出也要多留意一下實際的天氣。
溫度會逐漸變熱起來,白天高溫又會慢慢回升到32~33度以上,
部分地區可達34~35度,又會回到夏天的感覺。
下一波的天氣變化預估仍要等到下周一(7日)左右,到時候北邊有西風槽東移,
前方的冷鋒將會南下,有機會掠過台灣上空而造成天氣的改變,
並也可能在鋒面過後跟著有弱東北季風南下,應該會是正式入秋的第一波系統,
不過預報仍可能有變動,還是要持續觀察。
至於今年第17號颱風奇羅還是非常遙遠,基本上對台灣天氣沒有任何影響,
不過它未來的強度發展十分看好,
而且繼續往西移動的過程中也可能帶動低緯度熱帶輻合區內其他擾動的發展,
後續的變化仍然值得密切觀察。
今天早上同事畫了兩張圖很有意思,
因為8月底這連續一週的陰雨,讓台北今年8月的平均溫度一口氣往下大幅拉低,
甚至變成了自2001年以來最低的一年,
相對於去年的台北才剛經歷過自2001年以來最熱的8月,
只能說現在的氣候真的是變化多端,捉摸不定阿.....
http://i.imgur.com/9W0ZnN1.jpg

8月底的台北有多涼呢? 比9月的平均溫度27.4度還要低,而且還連續了好幾天,
更有趣的是這個低溫看起來跟冷空氣沒有太大關係,降雨太多才是主要的成因....
http://i.imgur.com/rzNN6ty.jpg

以上簡單供參考囉~
--
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