天氣小觀:留意南海熱低是否要對台灣打出昇龍拳
天氣小觀:留意南海熱低是否要對台灣打出昇龍拳
(白話說明)
受到東北亞高空冷渦旋對應地面冷高壓帶來偏北風影響,
目前南海熱低與東北亞下來的偏北風正在共伴,
可以說是春季的共伴,雖然沒有秋季共伴效應強,
而且與秋季不同的是太平洋高壓偏南偏東,
但從巴士海峽對流雲雨帶來看,共伴降雨依舊很驚人。
不過這大陸上的偏北風很快會減弱,取而代之的模式預報開始令人擔心。
因為南海熱低的移動和發展看起來,要往北打出昇龍拳,
也就是將目前在巴士海峽的雲雨區往北推進,
預報上甚至直接打中--台灣,從南部到東部現在起都要非常關注。
至於北部因為地面小冷高壓太弱,也沒有蒙古冷高壓支援,
東北風很快減弱,共伴雲雨帶不會在北部發展,
但是從南海熱低往北的過程中,東側的右臂打上來的對流雲雨是很驚人的,
正南風直接將赤道氣團往北帶,遇到台灣附近的冷空氣,降雨會很可觀。
模式預報,目前看起來可能的狀況有兩個,
1.南海熱低的發展不夠快就直接打出昇龍拳擊中台灣,
那就不大妙,南部、東部降雨會很驚人,北部、中部在雲雨帶掃上來後也會有影響。
2.南海熱低發展起來,對流往中心集中,那麼就要另外觀察中心的走向斷定,
或許偏向香港,那對台灣影響會小很多。
(時間關係,以上供參囉)
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※ 編輯: daron (42.71.24.191), 06/12/2014 14:04:13
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