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解惑“XXXXXL19DWC”-梳理天下新闻

北京石家庄等XXXXXL19DWC地今冬初雪迟迟未现 为啥京津冀下一场雪这么难?

来源: 环球Tech
2024-12-13 17:28:23

最佳回答

“XXXXXL19DWC”北京石家庄等XXXXXL19DWC地今冬初雪迟迟未现 为啥京津冀下一场雪这么难?

  央视XXXXXL19DWC网消息:据中国天气网消息,受冷XXXXXL19DWC空气影响,昨天(12月12日),北方多地出现雨雪天气。省会首府直辖市中,济南盼来了今冬首场降雪。遗憾的是,北京、石家庄等地并未在此次过程中降下期盼已久的雪花。为何京津冀下一场雪这么难?未来降水趋势又会如何?

  昨天,受冷空气影响,北方多地出现大风降温及弱雨雪天气。其中,山东省会济南迎来了今冬首场降雪,截至今晨08时,济南积雪深度达2厘米。至此,北方省会首府直辖市中,只有北京、石家庄、西安和郑州今冬初雪还迟迟未现。

bqtb

  为何京津冀地区今冬初雪迟迟不见身影?下一场雪这么难吗?其实,想要下一场雪,关键是水汽、气温和动力条件三者的配合。简单来说,足够低的气温是前提,再加上充足的水汽和良好的动力抬升,一场酣畅淋漓的雪才会降临。

  对于北方地区来说,水汽条件不足常常是雪花难以现身的关键。中国天气网气象分析师霍云怡表示,常年来看,除张家口、承德一些海拔较高的站点外,京津冀地区大多数站点的初雪时间一般在12月上中旬,而今年12月上旬,冷空气活动虽较常年活跃,但低空的水汽供给情况一般,因而暂时未能出现较大范围降雪。

  虽然京津冀一带和雪花擦身而过,但是在山东半岛地区,今天仍会有明显的冷流降雪出现。明天,华北、黄淮的雨雪将告一段落,内蒙古东北部、黑龙江中北部等地仍会有小雪天气,一直到15日上述地区降雪将基本结束。

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未来十天,中东部大部降水稀少。

  对于中东部大部地区来说,未来几天,随着干冷空气源源不断南下,中东部将开启一段降水稀少的日子。预计明天起到17日,西北地区到中东部大部天气主打晴朗干燥,18日开始,全国的降水将再度发展增多。所以,还未见到初雪的小伙伴们,看来要再等一段时日了。

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