天氣小觀:未來一週,夏冬大軍,先熱後冷 - 颱風討論
By Lily
at 2019-03-17T09:13
at 2019-03-17T09:13
Table of Contents
天氣小觀:未來一週,夏冬大軍,先熱後冷
在經過三波冷暖大戰後,夏季系統勢力被擊退,
冬季系統取得一段時間的勝利,台灣也持續偏冷涼。
本周起,續釀實力的夏季系統再從中南半島往北反擊,
這波暖氣團的北攻實力聲勢浩大,
大軍源源不絕進入華南地區甚至渡過長江流域,
台灣在本週前段會很有夏天的感覺,
週二和周三可以挑戰30度了,華南到台灣一片熱情奔放。
模式預報,700百帕的高空反氣旋向上反映至500百帕的副高壓的勢力。
副高勢力重新在南海到菲律賓東方海面集結,
西北側的西南風氣流帶上整片暖氣團,
只是,
西北側的低空氣流有點太強,而且最強到80kts以上的中度颱風等級了,
在700百帕出現如此強烈的西南風急流,
直接在地面反映出封閉的輻合低壓。
而這個低壓象徵著冬季系統的反反擊了。
在夏季系統聲勢浩大進入東亞時,
大半結冰的鄂霍次克海高空,再度出現高空冷渦旋,
接著往西調整至東北亞北方,冷渦旋西側對應在蒙古地面堆積出冷高壓。
北方冬季系統重新調軍,而南方的輻合低壓最終還是爆發出炸彈低壓。
模式預報,
週三起在長江流域出現的輻合低壓在陸地上的發展受限,
但週四一出海就立刻變炸彈低壓往日本海而去。
炸彈低壓的溫帶氣旋一發展後,旋臂立刻帶出冷鋒,
同時北方的蒙古冷高壓也累積到1040百帕以上,
模式顯示一週尾聲,850帕6度線壓到台灣北部,
看來冬季系統又是一波強烈攻勢,台灣北部有機會再挑戰冷氣團了。
總結來看,未來一週就是先暖後冷,
前段由於夏季系統的反擊強烈,因此沒有大氣高空秀,
東南風上來很快驅走台灣的冷空氣,除北部或東北部有些不穩定降雨。
後段由於冬戲系統的反反擊強烈,因此沒有大氣高空秀,
東北季風的冷空氣將冷鋒壓往台灣北部後散去,除北部和東北部有一些短暫雨。
對夏季系統和冬季系統而言,才不管什麼大氣秀,越熱和越冷才是王道;
越熱,太平洋高壓就能衝破北緯50度。
越冷,西風噴流就可以壓過北緯20度。
只是,一年四季總有兩個過渡期,
如果"越熱"和"越冷"是負能量,
那麼過渡期要注意的"負能量"產物:春季的"沙塵暴"和秋季的"蟎菌飄"
春季由於過了整個冬季的極度乾燥的土壤解凍,沙塵隨北風氣流向南飄,
秋季由於活出整個夏季的蟎菌無法適應秋季環境改變,紛紛出籠空氣飄。
模式預報一周尾聲的西北氣流從蒙古直吹台灣北部,
由於青藏高原已不在是冷源,四月起要轉為熱源,
蒙古凍土解凍的沙塵順著西北氣流直吹台灣北部海面,
甘肅凍土解凍的沙塵順著西北氣流直吹台灣。
因此,屆時應該就要留意:"越熱"和"越冷"的負能量產物:春季沙塵了。
(以上供參囉)
--
在經過三波冷暖大戰後,夏季系統勢力被擊退,
冬季系統取得一段時間的勝利,台灣也持續偏冷涼。
本周起,續釀實力的夏季系統再從中南半島往北反擊,
這波暖氣團的北攻實力聲勢浩大,
大軍源源不絕進入華南地區甚至渡過長江流域,
台灣在本週前段會很有夏天的感覺,
週二和周三可以挑戰30度了,華南到台灣一片熱情奔放。
模式預報,700百帕的高空反氣旋向上反映至500百帕的副高壓的勢力。
副高勢力重新在南海到菲律賓東方海面集結,
西北側的西南風氣流帶上整片暖氣團,
只是,
西北側的低空氣流有點太強,而且最強到80kts以上的中度颱風等級了,
在700百帕出現如此強烈的西南風急流,
直接在地面反映出封閉的輻合低壓。
而這個低壓象徵著冬季系統的反反擊了。
在夏季系統聲勢浩大進入東亞時,
大半結冰的鄂霍次克海高空,再度出現高空冷渦旋,
接著往西調整至東北亞北方,冷渦旋西側對應在蒙古地面堆積出冷高壓。
北方冬季系統重新調軍,而南方的輻合低壓最終還是爆發出炸彈低壓。
模式預報,
週三起在長江流域出現的輻合低壓在陸地上的發展受限,
但週四一出海就立刻變炸彈低壓往日本海而去。
炸彈低壓的溫帶氣旋一發展後,旋臂立刻帶出冷鋒,
同時北方的蒙古冷高壓也累積到1040百帕以上,
模式顯示一週尾聲,850帕6度線壓到台灣北部,
看來冬季系統又是一波強烈攻勢,台灣北部有機會再挑戰冷氣團了。
總結來看,未來一週就是先暖後冷,
前段由於夏季系統的反擊強烈,因此沒有大氣高空秀,
東南風上來很快驅走台灣的冷空氣,除北部或東北部有些不穩定降雨。
後段由於冬戲系統的反反擊強烈,因此沒有大氣高空秀,
東北季風的冷空氣將冷鋒壓往台灣北部後散去,除北部和東北部有一些短暫雨。
對夏季系統和冬季系統而言,才不管什麼大氣秀,越熱和越冷才是王道;
越熱,太平洋高壓就能衝破北緯50度。
越冷,西風噴流就可以壓過北緯20度。
只是,一年四季總有兩個過渡期,
如果"越熱"和"越冷"是負能量,
那麼過渡期要注意的"負能量"產物:春季的"沙塵暴"和秋季的"蟎菌飄"
春季由於過了整個冬季的極度乾燥的土壤解凍,沙塵隨北風氣流向南飄,
秋季由於活出整個夏季的蟎菌無法適應秋季環境改變,紛紛出籠空氣飄。
模式預報一周尾聲的西北氣流從蒙古直吹台灣北部,
由於青藏高原已不在是冷源,四月起要轉為熱源,
蒙古凍土解凍的沙塵順著西北氣流直吹台灣北部海面,
甘肅凍土解凍的沙塵順著西北氣流直吹台灣。
因此,屆時應該就要留意:"越熱"和"越冷"的負能量產物:春季沙塵了。
(以上供參囉)
--
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