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Back立秋后首场大范围降温来袭 北方十余大城市气温将创新低
立秋后首场大范围降温来袭 北方十余大城市气温将创新低
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中国新闻网1 hour agoEnvironment4 min readChinaView translation

立秋后首场大范围降温来袭 北方十余大城市气温将创新低

白露节气冷空气影响北方,多地气温降幅超10℃,京津冀入秋进程或开启

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9月7日白露节气,一股全能型冷空气影响我国北方大部,带来立秋后首场大范围降温。内蒙古、甘肃、陕西等地局地降温超15℃,哈尔滨、北京等13个大城市气温将创新低,部分地区将开启入秋进程,并伴有强对流天气。

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Why It Matters

9月7日进入白露节气,冷暖空气交汇引发北方大范围降温及强对流天气。

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中国天气网讯 今天(9月7日)进入白露节气,一股全能型冷空气应景来袭,今后三天将携降温、降雨、强对流天气影响北方大部地区。受其影响,北方将现立秋后首场大范围降温,10余大城市气温将创新低,这波降温还将推动京津冀等地的入秋进程。中国天气网推出大城市降温日历,看你家何时气温大跳水。

今后三天,一股冷空气将影响北方大部地区,带来立秋后首场大范围降温,内蒙古、甘肃、陕西、山西、河南等地局地将迎换季式降温。中国天气网气象分析师于群介绍,这股冷空气属于“全能型选手”,它不仅影响范围广、降温实力强,还将给北方多地带来较强降雨、强对流天气。

目前,这股冷空气前沿已经到达西北地区中东部、华北北部一带。从降温进程来看,今天,内蒙古大部、黑龙江中部、吉林中西部、辽宁西部、河北北部、陕西北部多地气温下降幅度超10℃,内蒙古东南部一带降温幅度达15℃以上,从30℃出头降至15℃以下,冷暖差异显著。

明天,冷空气将进一步东移南压,降温区域集中在西北地区中东部、华北中南部、黄淮、东北地区中东部等地,其中河北南部、山西中南部、河南北部、黑龙江东部、吉林东部、辽宁东部等地气温降幅可达8至16℃。后天冷空气将影响黄河以南地区,其中陕西南部、湖北西北部、河南中西部一带成为降温核心影响区域,气温降幅将在8至14℃左右。

降温后,最高气温20℃线将南压到陕西中部、山西中部、河北北部、内蒙古东部一带。未来三天,哈尔滨、长春、沈阳、呼和浩特、太原、北京、天津、西安、兰州、银川、西宁、济南、郑州等13个大城市的最高气温将陆续创下立秋后新低,其中太原、兰州、银川、西宁、郑州最高气温将降至20℃以下,较常年同期偏低8至10℃。

北方多地不仅最高气温将较常年同期明显偏低,早晚时段更是秋凉凸显,最低气温也将大范围创新低。8日至11日,东北多地最低气温将不足10℃,华北南部也仅有15℃左右,体感凉飕飕。哈尔滨、长春、沈阳、西宁、呼和浩特、太原等地最低气温将降至个位数,将陆续刷新今年立秋来气温最低。其中哈尔滨8日最低气温仅有7℃,长春和沈阳9日至10日将陆续降至9℃,外套、长裤等秋装要派上用场了。

随着天气转凉,目前北方多地已进入秋天的怀抱,兰州、银川、哈尔滨、长春、太原、西宁等地已入秋。于群表示,这波降温会推动北方入秋进程继续向南推进,京津冀多地和东北地区南部的入秋进程或将开启,北京、石家庄明天可能体验夏秋转换。

除了降温,9月7日至9日,西北地区东部、华北西部还将出现明显降雨过程,普遍有小到中雨,局地大到暴雨,部分地区伴有雷电或短时强降水等对流性天气。

强降雨和强对流天气多见于盛夏,为何到了夏秋之交仍如此强势?于群表示,目前副热带高压稳定少动,仍掌控着我国中东部地区,其边缘有水汽源源不断向北输送,同时冷空气东移南下,冷暖空气交汇激发出大范围的降雨,部分地区还可能出现雷暴大风或冰雹等强对流天气。

中国天气网提醒,白露节气开场,一股全能型冷空气来袭,北方多地将迎换季式降温,秋凉渐起,尤其是东北、西北地区东部等地,早晚时段凉意凸显。不少地方降温的同时伴随明显降雨,更添凉意,公众需及时增衣,谨防感冒。

What to Watch

AI outlook — possibilities, not facts

  • 北京、石家庄等地可能于9月8日开启入秋进程。

    Likely · Within days

Open Questions

  • 具体降雨对农业生产的影响程度如何?

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This article was originally published by 中国新闻网.

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