Re: 本周天氣大致穩定~明天起回溫~101/12/10 - 颱風討論
By Heather
at 2012-12-11T09:36
at 2012-12-11T09:36
Table of Contents
昨晚從華中東移的短波槽底原本預估會從北部海面掠過~
但沒想到實際的結果比預期的要往南了一些~
因此槽底的正渦度以及上升作用造成海峽北部回波發展~
新竹以北地區又突然下起雨來~
http://ppt.cc/53nF
http://ppt.cc/ov-P
這是屬於這一輪大槽南壓帶動後~
後續西風帶中快速發展移動的短波槽~簡單形容就是"餘波蕩漾"~
在高緯度仍有冷平流南下的動力條件下~這種小系統就容易出現~
稍微往北個一兩百公里~台灣就不受影響~
但如果像今天這樣稍微往南個一兩百公里~就會有突然的降雨發生~囧
台灣太小了~幾乎不容許有這樣的距離誤差~
雨一下~濕度提高~大家的體感溫度就變冷許多~
新竹以北地區的朋友目前只能靜待這個短波槽通過~下半天以後應該會比較好~
苗栗以南地區不受影響~持續是陽光普照~
南北的溫差會比較明顯~南來北往的朋友請注意~
--
但沒想到實際的結果比預期的要往南了一些~
因此槽底的正渦度以及上升作用造成海峽北部回波發展~
新竹以北地區又突然下起雨來~
http://ppt.cc/53nF
http://ppt.cc/ov-P
這是屬於這一輪大槽南壓帶動後~
後續西風帶中快速發展移動的短波槽~簡單形容就是"餘波蕩漾"~
在高緯度仍有冷平流南下的動力條件下~這種小系統就容易出現~
稍微往北個一兩百公里~台灣就不受影響~
但如果像今天這樣稍微往南個一兩百公里~就會有突然的降雨發生~囧
台灣太小了~幾乎不容許有這樣的距離誤差~
雨一下~濕度提高~大家的體感溫度就變冷許多~
新竹以北地區的朋友目前只能靜待這個短波槽通過~下半天以後應該會比較好~
苗栗以南地區不受影響~持續是陽光普照~
南北的溫差會比較明顯~南來北往的朋友請注意~
--
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