台灣低壓建立,明天北部仍有短暫雨~2014/02/05 - 颱風討論

By Edith
at 2014-02-05T17:33
at 2014-02-05T17:33
Table of Contents
今天因為西南邊上來的水氣仍多,中部以北到東北部東部一帶降雨仍多,
從雷達或是雲圖上都可以看到波動狀的降雨系統,
這種現象在12月連續降雨時也看到過,
大氣層結在往北傾斜的溫度面上呈現高低起伏的波動,
波峰處降雨,波谷處無雨,是一種很有趣的狀況,
詳細的原因可能要再去尋求動力學上的解釋,我自己也不是很了解XD
目前來看隨著地面高壓持續東移,台灣附近的風向已經轉為東風,
今晚到明天會繼續轉為東南風向,水氣的輸送帶持續向北抬,
現在已經逐漸趨向海峽北部到台灣北部海面一帶,
從最新的預報資料來看,明天在台灣北邊的冷暖交界區域逐漸有低壓波動會發展,
也就是所謂的"台灣低壓",並且逐漸向東北緩慢移動,
漸趨加深,同時在台灣以東拉出新的鋒面系統,
這種變化對台灣的天氣來說是比較好的情況,
台灣低壓在台灣北方到東北方海面建立,相關的雲雨帶跟著偏北,
預估明天只有北部東北部仍有短暫陣雨的機會,降雨會比今天要少得多,
特別是當低壓建立並且向東移動,左側北風逐漸南下到北台灣上空時,
中部南部以及花東地區相對來說天氣就會比較穩定,
接著鋒面在台灣以東建立拉出來,雲雨帶也就跳過台灣而在台灣以東發展,
對台灣的天氣影響會比先前預估的要小得多,
後天(7號)的天氣看起來只在北風迎風面上會有局部地形降雨的現象,
其他地方應該是以多雲的天氣為主,
不過這個台灣低壓對日本的影響會蠻大的,
特別是接近關東地區時有明顯加深的現象,
可能會為關東、本州東北部、北海岸帶來強風以及雨雪天氣,
台灣低壓在日本附近加深為溫帶氣旋後,從北邊下來的冷空氣將大幅加強,
同時從華南又會有後續西風帶來的雲雨帶水氣靠近,
周末期間(8~9號)中部以北到東北部東部的天氣恐怕不佳,
看起來會是蠻濕冷的情況,不但溫度下降轉冷而且降雨也比較明顯,
預估冷空氣強度可能達到冷氣團或強烈冷氣團的等級,
南部東南部的天氣相對好一點,打算延續過年假期感覺的朋友盡量往南走會比較好..XD
以上先簡單供參考囉~
--
從雷達或是雲圖上都可以看到波動狀的降雨系統,
這種現象在12月連續降雨時也看到過,
大氣層結在往北傾斜的溫度面上呈現高低起伏的波動,
波峰處降雨,波谷處無雨,是一種很有趣的狀況,
詳細的原因可能要再去尋求動力學上的解釋,我自己也不是很了解XD
目前來看隨著地面高壓持續東移,台灣附近的風向已經轉為東風,
今晚到明天會繼續轉為東南風向,水氣的輸送帶持續向北抬,
現在已經逐漸趨向海峽北部到台灣北部海面一帶,
從最新的預報資料來看,明天在台灣北邊的冷暖交界區域逐漸有低壓波動會發展,
也就是所謂的"台灣低壓",並且逐漸向東北緩慢移動,
漸趨加深,同時在台灣以東拉出新的鋒面系統,
這種變化對台灣的天氣來說是比較好的情況,
台灣低壓在台灣北方到東北方海面建立,相關的雲雨帶跟著偏北,
預估明天只有北部東北部仍有短暫陣雨的機會,降雨會比今天要少得多,
特別是當低壓建立並且向東移動,左側北風逐漸南下到北台灣上空時,
中部南部以及花東地區相對來說天氣就會比較穩定,
接著鋒面在台灣以東建立拉出來,雲雨帶也就跳過台灣而在台灣以東發展,
對台灣的天氣影響會比先前預估的要小得多,
後天(7號)的天氣看起來只在北風迎風面上會有局部地形降雨的現象,
其他地方應該是以多雲的天氣為主,
不過這個台灣低壓對日本的影響會蠻大的,
特別是接近關東地區時有明顯加深的現象,
可能會為關東、本州東北部、北海岸帶來強風以及雨雪天氣,
台灣低壓在日本附近加深為溫帶氣旋後,從北邊下來的冷空氣將大幅加強,
同時從華南又會有後續西風帶來的雲雨帶水氣靠近,
周末期間(8~9號)中部以北到東北部東部的天氣恐怕不佳,
看起來會是蠻濕冷的情況,不但溫度下降轉冷而且降雨也比較明顯,
預估冷空氣強度可能達到冷氣團或強烈冷氣團的等級,
南部東南部的天氣相對好一點,打算延續過年假期感覺的朋友盡量往南走會比較好..XD
以上先簡單供參考囉~
--
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