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Back冷空气登场局地降温将超8℃ 为何南方多地热感不减反增?
冷空气登场局地降温将超8℃ 为何南方多地热感不减反增?
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中国新闻网1 hour agoEnvironment2 min readChinaView translation

冷空气登场局地降温将超8℃ 为何南方多地热感不减反增?

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海南强降雨今日结束,西北、华北、东北等地雨水增多。同时北方冷空气登场带来4-6℃降温,而南方副热带高压强盛,局地气温超30℃。此外,29号台风“小熊”已加强至强台风级。

AI-generated summary

Why It Matters

海南强降雨今日结束,北方将迎冷空气降温,南方热感持续且台风“小熊”加强。

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今天,海南强降雨终于结束了。此消彼长,明起三天,西北地区东部、华北、东北、黄淮等地雨水将增多,其中四川、陕西局地有大雨或暴雨。对于华北、东北来说,因为水汽条件较差,降雨强度整体较弱,小雨为主,能起到一定的润燥作用。

与此同时,北方一股冷空气也将登场,受其影响,明起三天,大部地区将有4℃至6℃降温,内蒙古中东部局地降幅可达8℃至12℃;并伴有4至5级大风,阵风6至8级。今后几天,北方多地气温起伏大,且昼夜温差大,小伙伴们白天可穿短袖或薄长袖,早晚还需穿上冲锋衣或棉衣。

冷空气虽然登场,对于南方不少地方来说,热感却不减反增。主要是因为这股冷空气位置偏北,而且从形势场预报看,中高纬度等高线相对较平,冷空气不容易聚集起来,强度不会很强,也不会大举南下。而且副热带高压显著偏强,不仅588线长时间控制江南中南部和华南,部分时段还会看到592线(热力核心区域)。

所以,明后天南方最高气温30℃以上的范围还会扩大,长沙、南宁、海口、广州、福州等地热力犹存,不排除华南、江南南部有零散的高温出现。虽然不是凶悍的“秋老虎”,却也是缠人的“秋小虎”。

从最低气温分界线来看:南方15℃、20℃线北抬;北方0℃、10℃气温线南落。南北冷暖差距进一步拉大,上演“冬夏并存”的画面。

海上方面,29号台风“小熊”台风眼愈发清晰,已经加强至强台风级,短时间内有望冲击超强台风级。如果实现,今年10月生成的3个台风巅峰强度都达到了超强台风级,这也体现了秋台风强度强的特征。在“小熊”东南侧,可见热带辐合带上对流活跃,未来也可能孕育新的台风,保持关注。

What to Watch

AI outlook — possibilities, not facts

  • 台风小熊短时间内有望冲击超强台风级

    Likely · Within days

Open Questions

  • 台风小熊未来是否会达到超强台风级?
  • 南方高温天气还将持续多久?

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This article was originally published by 中国新闻网.

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