鋒面滯留,今天持續嚴防豪大雨~2014/05/21 - 颱風討論

By Sierra Rose
at 2014-05-21T11:23
at 2014-05-21T11:23
Table of Contents
一下大雨,公司就有應接不暇的事情要忙...囧
很簡單的提醒一下,
因為日本附近較強的溫帶氣旋加深,帶動較強的涼冷空氣南下,
跟台灣附近的西南風暖濕空氣交會,溫差的狀況比預期要明顯,
加上風場型態來看具有較清楚的變形場,也就是鋒面的構造,
昨晚北部開始不斷生長的降雨系統可能就是由此而來,
http://ppt.cc/b-3V
台北市在過去24小時累積雨量已經達到342毫米(至上午11時),
超過北部5月份歷史平均雨量(142~295毫米)的上限值,
也就是1天就下了超過1個月該下的雨量,(在上述範圍內表示雨量正常),
雨勢可說是相當的驚人,
鋒面看起來今天還持續存在,因此各地仍會下雨,
西半部尤其要嚴防大雨或豪雨的狀況,
東半部雨勢較小,但也會有局部較大雨勢,
降雨一陣一陣的,不會一整天或是全面性都在下雨,
但是只要一下雨就很容易發生短時間內累積大量降水的強降雨狀況,
因此今天外出的話務必要小心自身安全,
有危險的地區就不要前往了,居住在危險地區的朋友則是要提高警覺,
另外就是因為有些底層較涼的空氣下來,
因此北台灣今天感覺比較涼,相對可能是會稍微舒服一點,
中南部還是比較悶熱潮濕的溫度,南來北往的話要留意一下溫度上的差異,
以上簡單供參考囉~
--
很簡單的提醒一下,
因為日本附近較強的溫帶氣旋加深,帶動較強的涼冷空氣南下,
跟台灣附近的西南風暖濕空氣交會,溫差的狀況比預期要明顯,
加上風場型態來看具有較清楚的變形場,也就是鋒面的構造,
昨晚北部開始不斷生長的降雨系統可能就是由此而來,
http://ppt.cc/b-3V
台北市在過去24小時累積雨量已經達到342毫米(至上午11時),
超過北部5月份歷史平均雨量(142~295毫米)的上限值,
也就是1天就下了超過1個月該下的雨量,(在上述範圍內表示雨量正常),
雨勢可說是相當的驚人,
鋒面看起來今天還持續存在,因此各地仍會下雨,
西半部尤其要嚴防大雨或豪雨的狀況,
東半部雨勢較小,但也會有局部較大雨勢,
降雨一陣一陣的,不會一整天或是全面性都在下雨,
但是只要一下雨就很容易發生短時間內累積大量降水的強降雨狀況,
因此今天外出的話務必要小心自身安全,
有危險的地區就不要前往了,居住在危險地區的朋友則是要提高警覺,
另外就是因為有些底層較涼的空氣下來,
因此北台灣今天感覺比較涼,相對可能是會稍微舒服一點,
中南部還是比較悶熱潮濕的溫度,南來北往的話要留意一下溫度上的差異,
以上簡單供參考囉~
--
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