天氣概況~2013/10/04 - 颱風討論

By Odelette
at 2013-10-04T09:01
at 2013-10-04T09:01
Table of Contents
剛下夜班~重點式的聊一下~
1.菲特強度雖然緩慢增強~但是乾空氣不斷的干擾下~眼牆建立不如預期~
未來24~36小時內仍位於環境較好的區域~暖水厚度也較厚~還有利於它的發展~
不過強度應該不至於會太強了~巔峰應該在中度颱風中階程度~
未來因為跟北邊地面高壓梯度的關係~颱風明顯的強風區將集中在北半圈~
南半圈較強的風則會收攏在暴風圈內~外圍的風比較小~
經過黑潮帶進入東海後~暖水層厚度明顯變薄~水溫下降~大氣環境也較為轉差~
預估菲特的強度將有逐漸減弱的趨勢~
2.昨天到今晨菲特持續在引導較弱的情況下靠自身旋轉內力偏北移動~
因為這一波西風槽較深~帶動西風南壓程度較大~
槽底一度頗為接近菲特~因此稍微有被西風帶到~有一點往北北東飄的感覺~
不過並未構成決定性強度的駛流~因此只能算是飄移~
預估今天白天菲特仍大致偏北移動~
西風槽勢力已經比昨天要弱~槽底帶動的西風強度也趨緩~
相對的位於日本東南的副高壓主體正在向西伸展~
明顯的東風駛流正在經過23W以北持續往西延伸中~
除了會帶動23W逐漸加速西進以外~
今天下半天以後會從菲特以東靠上來~甚至慢慢伸展到菲特以北~
因此跟先前預估的差不多~今晚起菲特有往西北偏折的趨勢~
明天到後天之間經過琉球那霸西南方海面後趨向東海~有繼續靠近長江口的趨勢~
是否撲向浙江或上海還有待觀察後續西風槽的情況~
4.菲特對臺灣的影響仍取決於今晚起的西北偏折角度~
轉的角度大~颱風中心就可能比較靠近台灣~暴風圈有可能逼近到足以發布警報的程度~
目前的預估還是蠻分歧的~ensemble持續天女散花~因此只能實際觀察而定~
但看起來今晚起北臺灣降雨的就會較為明顯的增加~
明後天除非颱風距離夠遠~不然北臺灣應該都會下雨~
風向由偏北轉西北風~因此雪山山脈西坡以及陽明山區等地都要注意豪大雨的機會~
颱風較近的話~降雨甚至會延伸到中部地區~
請北臺灣的朋友本周末要注意颱風的變化~甚至須要先做好準備~
其他地方雖然比較不受影響~但計畫出遊也是要特別小心~
秋天颱風多變化~小心駛得萬年船~
以上先簡單供參考囉~
p.s 今晚視情況再看看是否加發文章~
--
1.菲特強度雖然緩慢增強~但是乾空氣不斷的干擾下~眼牆建立不如預期~
未來24~36小時內仍位於環境較好的區域~暖水厚度也較厚~還有利於它的發展~
不過強度應該不至於會太強了~巔峰應該在中度颱風中階程度~
未來因為跟北邊地面高壓梯度的關係~颱風明顯的強風區將集中在北半圈~
南半圈較強的風則會收攏在暴風圈內~外圍的風比較小~
經過黑潮帶進入東海後~暖水層厚度明顯變薄~水溫下降~大氣環境也較為轉差~
預估菲特的強度將有逐漸減弱的趨勢~
2.昨天到今晨菲特持續在引導較弱的情況下靠自身旋轉內力偏北移動~
因為這一波西風槽較深~帶動西風南壓程度較大~
槽底一度頗為接近菲特~因此稍微有被西風帶到~有一點往北北東飄的感覺~
不過並未構成決定性強度的駛流~因此只能算是飄移~
預估今天白天菲特仍大致偏北移動~
西風槽勢力已經比昨天要弱~槽底帶動的西風強度也趨緩~
相對的位於日本東南的副高壓主體正在向西伸展~
明顯的東風駛流正在經過23W以北持續往西延伸中~
除了會帶動23W逐漸加速西進以外~
今天下半天以後會從菲特以東靠上來~甚至慢慢伸展到菲特以北~
因此跟先前預估的差不多~今晚起菲特有往西北偏折的趨勢~
明天到後天之間經過琉球那霸西南方海面後趨向東海~有繼續靠近長江口的趨勢~
是否撲向浙江或上海還有待觀察後續西風槽的情況~
4.菲特對臺灣的影響仍取決於今晚起的西北偏折角度~
轉的角度大~颱風中心就可能比較靠近台灣~暴風圈有可能逼近到足以發布警報的程度~
目前的預估還是蠻分歧的~ensemble持續天女散花~因此只能實際觀察而定~
但看起來今晚起北臺灣降雨的就會較為明顯的增加~
明後天除非颱風距離夠遠~不然北臺灣應該都會下雨~
風向由偏北轉西北風~因此雪山山脈西坡以及陽明山區等地都要注意豪大雨的機會~
颱風較近的話~降雨甚至會延伸到中部地區~
請北臺灣的朋友本周末要注意颱風的變化~甚至須要先做好準備~
其他地方雖然比較不受影響~但計畫出遊也是要特別小心~
秋天颱風多變化~小心駛得萬年船~
以上先簡單供參考囉~
p.s 今晚視情況再看看是否加發文章~
--
Tags:
颱風
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