南海雲層靠近中~09/04/15 - 颱風討論

By Carol
at 2009-04-15T23:29
at 2009-04-15T23:29
Table of Contents
明天早上要去一趟台大~所以現在先來聊聊明天的天氣情況
今天在北邊高壓逐漸東移~暖空氣勢力加強的情況下
各地都是溫暖到偏熱的溫度~北台灣約在26~28度間~台北市超過30度
中南部也普遍在29~30度左右~花東地區到是升得不高~只有25~26度
今天比較值得一提的是中南部山區有午後的局部熱對流降雨發生
不過降雨不算很多~雲層發展起來後順著高空氣流往花東擴散~
其他平地則大致維持多雲或晴的天氣
但是新一波的天氣系統已經在接近之中
青藏高原有短波槽東移下來~同時變性高壓回流帶來南海的暖濕空氣
槽前有明顯的雲層在廣東沿海到南海北部一帶發展
並且已經往台灣方向延伸過來~
晚間起各地雲量都明顯比白天增加
台灣海峽南部到廣東汕頭海面有較明顯的雷達回波出現
也有逐漸往台灣中南部擴展的現象
目前鋒面系統還不很明顯~但是今晚到明晨隨著短波槽東移
今天南下到華北的冷空氣被引導南下後~福建廣東一帶就會有鋒面開始建立起來
同時南海北部以及廣東沿海的雲層也會在鋒前氣流引導下持續往台灣發展
下半夜到明天清晨前就可能先從中南部開始下起雨來
到明天上午將逐漸過山擴展到花東地區~~山區有機會發生較大的雨勢
同時也會有雷雨出現的可能
至於北台灣要等到鋒面本身到達後降雨的情況才會趨於明顯
時間應該要到明天的下半天開始~降雨會陸續出現~也會有較大雨勢發生的現象
明晚到後天(17號)白天鋒面通過~加上鋒面上有較好的條件發展旋生低壓
全台灣都是有雨的天氣~雨勢明顯~並且普遍有機會出現雷雨
因此明天的天氣算是不太理想的~外出時請記得要攜帶雨具
而陸續降雨後也會讓各地溫度比今天要轉涼一些
但是冷空氣不強~而且明天還不會明顯的影響到台灣~因此應該不會有明顯的變冷
只是會比較舒適一些~不至於像今天這麼炎熱了
氣象局已經發布了今晚到明天的豪大雨特報~
提醒大家務必要注意天氣方面的變化情況囉~
以上簡單供參考~
P.S 今天在孟加拉灣誕生了今年第一個熱帶風暴(01B)
未來可能對孟加拉或緬甸北部造成威脅
而這幾輪的中長期預報也普遍顯示下旬開始副高壓將有明確北跳的機會
菲律賓東南方有較明顯的擾動可能發展起來~是否會出現今年第一個颱風仍須觀察~
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