北半球的盛宴~2016/08/10
北半球的盛宴正在上演,
印度季風、南海到太平洋的季風環流圈,還有更東邊正在併入季風環流圈的東風波動,
整個已經串成一個大尺度的結構。
http://imgur.com/a/wlA8k
雲圖中可以看出,在這個大尺度結構裡面自西向東有很多個擾動存在,
包括正在台灣附近的92W也是其中一員,
http://imgur.com/a/N50Y5
預估這樣熱鬧的情況還會維持一段時間,
未來陸續會有熱帶低氣壓甚至颱風發展的機會,
而且熱帶擾動的動態會比較複雜,環流大圈套小圈,彼此交互影響,
預報有一定的難度,變動的狀況也會比較頻繁且快速,
請大家要持續注意最新的天氣預報資訊,
留意是否有颱風或熱帶低氣壓可能影響台灣的機會。
92W今晚到明天會通過台灣趨向台灣海峽,
雖然結構鬆散,強度不強,但仍可能帶來較大雨勢,
提醒各地的朋友在明、後兩天(11~12日)要注意旺盛對流系統造成豪大雨發生的機會。
預估92W通過台灣後,周末期間逐漸趨向廣東沿海,
到時候因為接近到季風環流圈的中心,速度會慢下來,結構反而有比較好的機會重整,
加上南海的季風更強,水氣更充沛,強度有增強的可能,
預估對海南島、廣東、廣西、福建等地都有較大的影響,
台灣雖然位於邊緣,也可能有較多水氣持續流入的機會,
因此周末期間台灣的天氣仍然不穩定,還是要留意較大雨勢發生的機會,
尤其是午後熱對流引發的大雷雨。
92W東邊的93W也要注意,預估未來有機會接上西南季風,
強度也會有發展增強的機會,值得持續觀察後續的變化。
簡單供參考囉~
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