高壓稍減弱,午後雷雨增多~2014/06/28 - 颱風討論

By Dinah
at 2014-06-28T17:43
at 2014-06-28T17:43
Table of Contents
這兩天公司事情頗忙,
幸好過去這兩天的天氣狀況在太平洋高壓如預期西伸增強後,大致是比較穩定的,
午後雷雨減少許多,並且以山區為主,
到了今天高壓勢力看起來有稍微減弱的現象,
加上進入巴士海峽的99W帶來了一些水氣,
因此午後熱對流發展就變得稍微明顯了一點。
目前來看太平洋高壓在明天到後天(29~30日)仍是稍弱的情況,
對於午後熱力對流發展的抑制力量較小,因此午後山區仍會有熱對流發展的機會,
移動擴散之後包括平地都有可能出現降雨,中部以北到東半部地區都要多加注意,
局部地區雨勢可能會大一點,前往山區活動尤其要小心。
溫度持續偏高且悶熱,高溫普遍有機會達到33~34度以上,部分地區可達35度,
中午以前陽光紫外線較強,外出時要注意防曬,並且多補充水分預防中暑。
99W昨晚一路闖進巴士海峽東南部,跑得比預期都要北一些,
但是因為垂直風切太強,對流雲團都被往西南方切離,
環流中心空空如也,因此越走越弱,環流很快就看不清楚了。
反而是在呂宋島西側,南海上空有另一個從背風正渦逐漸取代原本環流中心的系統出現
可見光雲圖上看得比較清楚,但是也還是蠻模糊的,
因為垂直風切仍然很強,這個系統在南海上要發展的可能性還是偏低,
有興趣的朋友可以持續追蹤。
由最新的預報資料顯示,下周後期隨著太平洋高壓脊往北調整,
南側低緯度海面讓出的空間變大,在菲律賓東方海面逐漸有熱帶擾動發展的可能性,
未來的變化值得密切觀察留意。
p.s 雖然高壓強度稍微減弱,但是往東退的幅度沒有很明顯,
鋒面要有大幅度接近台灣的可能性不高,個人認為是不必太過擔心。
--
幸好過去這兩天的天氣狀況在太平洋高壓如預期西伸增強後,大致是比較穩定的,
午後雷雨減少許多,並且以山區為主,
到了今天高壓勢力看起來有稍微減弱的現象,
加上進入巴士海峽的99W帶來了一些水氣,
因此午後熱對流發展就變得稍微明顯了一點。
目前來看太平洋高壓在明天到後天(29~30日)仍是稍弱的情況,
對於午後熱力對流發展的抑制力量較小,因此午後山區仍會有熱對流發展的機會,
移動擴散之後包括平地都有可能出現降雨,中部以北到東半部地區都要多加注意,
局部地區雨勢可能會大一點,前往山區活動尤其要小心。
溫度持續偏高且悶熱,高溫普遍有機會達到33~34度以上,部分地區可達35度,
中午以前陽光紫外線較強,外出時要注意防曬,並且多補充水分預防中暑。
99W昨晚一路闖進巴士海峽東南部,跑得比預期都要北一些,
但是因為垂直風切太強,對流雲團都被往西南方切離,
環流中心空空如也,因此越走越弱,環流很快就看不清楚了。
反而是在呂宋島西側,南海上空有另一個從背風正渦逐漸取代原本環流中心的系統出現
可見光雲圖上看得比較清楚,但是也還是蠻模糊的,
因為垂直風切仍然很強,這個系統在南海上要發展的可能性還是偏低,
有興趣的朋友可以持續追蹤。
由最新的預報資料顯示,下周後期隨著太平洋高壓脊往北調整,
南側低緯度海面讓出的空間變大,在菲律賓東方海面逐漸有熱帶擾動發展的可能性,
未來的變化值得密切觀察留意。
p.s 雖然高壓強度稍微減弱,但是往東退的幅度沒有很明顯,
鋒面要有大幅度接近台灣的可能性不高,個人認為是不必太過擔心。
--
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