天氣速觀:最新模式! 跑出周三~周四秋颱共伴 - 颱風討論
By Quanna
at 2020-10-19T16:39
at 2020-10-19T16:39
Table of Contents
天氣速觀:最新模式! 跑出周三~周四秋颱共伴
不得了啦,目前最新模式預報把秋颱共伴改來了,而照此模式來看,宜蘭+北北基要坐穩了。
熱帶性低氣壓1004百帕,在北緯13度,東經129度,
即在菲律賓東方海面,向西北移動,時速25公里,有增強為輕度颱風的趨勢。
25公里跑太快啦,西風槽下來剛好就是準颱風沙德爾通過呂宋島進入南海,
模式預報沙德爾颱風不強,
但共伴條件備齊了,
三天後的大氣場模擬:https://imgur.com/a/EXWCGXC
目前,準颱風沙德爾東側已捲起大片High翻天的的赤道氣團,預計在通過呂宋島後,
整片赤道氣團在太平洋的高壓導引下往台灣東部海面進來,
在大氣中層500百帕,太平洋高壓壓著赤道氣團轉向攻入台灣東北部高空,
在大氣中低層700百帕,太平洋高壓勢力較弱,赤道氣團直直吹向日本南方海面。
也由於500百帕的太平洋高壓導引,台北宜蘭要留意降雨了。
在地面場是很標準"大氣場"東北季風的北北東風,
與準颱風沙德爾的偏南風在台灣東南方海面相遇,暖空氣沿著冷空氣開始爬升到宜蘭、台北;
一般來說,秋颱共伴影響最大在宜蘭,
但這次對台北來說,
北方下來的是低溫猛烈的東北季風-北北東風吹過東亞沿海的海氣耦合,
同時,更低溫的氣團把次低溫的氣團當暖空氣抬升,
因此,
模式預報周三到周四的秋颱共伴,台北宜蘭可能互相拚場嘩啦啦了;
不過也好在準颱風沙德爾很弱,環流不夠強,就像馬達不夠力一樣,打水不夠猛,
也是這次共伴較差的變數,因此預報看來豪雨應該在可接受範圍吧。
(快速說說供參囉)
--
不得了啦,目前最新模式預報把秋颱共伴改來了,而照此模式來看,宜蘭+北北基要坐穩了。
熱帶性低氣壓1004百帕,在北緯13度,東經129度,
即在菲律賓東方海面,向西北移動,時速25公里,有增強為輕度颱風的趨勢。
25公里跑太快啦,西風槽下來剛好就是準颱風沙德爾通過呂宋島進入南海,
模式預報沙德爾颱風不強,
但共伴條件備齊了,
三天後的大氣場模擬:https://imgur.com/a/EXWCGXC
目前,準颱風沙德爾東側已捲起大片High翻天的的赤道氣團,預計在通過呂宋島後,
整片赤道氣團在太平洋的高壓導引下往台灣東部海面進來,
在大氣中層500百帕,太平洋高壓壓著赤道氣團轉向攻入台灣東北部高空,
在大氣中低層700百帕,太平洋高壓勢力較弱,赤道氣團直直吹向日本南方海面。
也由於500百帕的太平洋高壓導引,台北宜蘭要留意降雨了。
在地面場是很標準"大氣場"東北季風的北北東風,
與準颱風沙德爾的偏南風在台灣東南方海面相遇,暖空氣沿著冷空氣開始爬升到宜蘭、台北;
一般來說,秋颱共伴影響最大在宜蘭,
但這次對台北來說,
北方下來的是低溫猛烈的東北季風-北北東風吹過東亞沿海的海氣耦合,
同時,更低溫的氣團把次低溫的氣團當暖空氣抬升,
因此,
模式預報周三到周四的秋颱共伴,台北宜蘭可能互相拚場嘩啦啦了;
不過也好在準颱風沙德爾很弱,環流不夠強,就像馬達不夠力一樣,打水不夠猛,
也是這次共伴較差的變數,因此預報看來豪雨應該在可接受範圍吧。
(快速說說供參囉)
--
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颱風
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