视频丨全国速冻地图出炉!本轮寒潮虽猛烈但“来去匆匆”

\u003cdiv class=\"rich_media_content\"\u003e\u003cp data-source=\"cke\"\u003e今明两天,今年下半年首场寒潮持续影响我国中东部地区,部分地区日平均气温降幅达8℃至10℃,青海、山东、黑龙江等地气温都创下今年下半年来新低。中央气象台今天继续发布寒潮蓝色和大风蓝色预警,公众请注意适时添衣,谨防感冒。\u003c/p\u003e\n\u003c!--VIDEO_0--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cp data-source=\"cke\"\u003e随着寒潮东移南下,今天起,我国中东部地区进入寒潮影响主要时段,大部地区日平均或最低气温普遍下降6℃至10℃,陕西、重庆、河南、湖北等地下降12℃至14℃,局地降温可超过14℃。\u003c/p\u003e\n\u003cp\u003e\u003c!--IMG_0--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e此次寒潮过程降温迅速猛烈,加上前期我国多地气温偏高,不少地方冷暖反差明显。例如沈阳,昨天最高气温还有17.5℃,明天就会降到1℃;而哈尔滨、西宁都将是下半年来首次跌至-10℃或以下,济南、合肥首次跌破冰点,大家请注意添衣保暖。\u003c!--MID_AD_0--\u003e\u003c!--EOP_0--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_0--\u003e\n\u003cp\u003e\u003c!--IMG_1--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e除了剧烈降温,在降水方面,今明两天,东北地区雨雪逐步减少、减弱,西南地区降雨增多,陕西、河南、湖北等地将有雨雪天气,其中部分高海拔山区有较强降雪。气象部门提醒,西南地区降雨增多,雨天路滑、能见度不佳,公众出行请注意交通安全。同时,\u003c!--SECURE_LINK_BEGIN_0--\u003e秦岭\u003c!--SECURE_LINK_END_0--\u003e及大巴山区局地有较强降雪,需注意做好相关防范措施。\u003c!--MID_AD_1--\u003e\u003c!--EOP_1--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_1--\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e全国冰冻线进程图出炉\u003c/p\u003e\n\u003cp\u003e北方率先大降温\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e今年下半年首场寒潮从北向南陆续影响我国,此轮寒潮影响范围广、降温剧烈、大风天气强,全国结冰的地区将一路推进至湖北、安徽、江苏一带。\u003c/p\u003e\n\u003c!--VIDEO_1--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cp data-source=\"cke\"\u003e今天,甘肃、宁夏、陕西、京津冀等地降温明显,冰冻线维持在西北地区东部至东北地区南部一线,呼和浩特、哈尔滨等城市最低气温将跌破零下10℃,创今年下半年以来新低。\u003c/p\u003e\n\u003cp\u003e\u003c!--IMG_2--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e17日起,降温范围迅速南扩,南方大部将迎来明显降温;18日早晨,冰冻线将进一步南压至江苏、安徽、湖北一带。西安、济南、合肥、武汉等大城市最低气温将首次跌破0℃,20℃以上温暖区域大幅缩减,南方湿冷感凸显。\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e值得注意的是,本轮寒潮虽然猛烈,但“来去匆匆”,18日起,北方的气温将开始大幅回升。19至20日,多地气温恢复至常年同期持平或偏高,最高气温波动如“坐过山车”。气象部门提醒,气温起伏剧烈,公众需密切关注天气变化,及时增减衣物,谨防感冒。\u003c!--MID_AD_2--\u003e\u003c!--EOP_2--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_2--\u003e\n\u003cdiv class=\"cms-cke-widget-title-normal-1 cms-cke-widget-title-tpl cms-cke-widget-title-wrapper cms-cke-widget-tpl\" data-key=\"title-normal-1\" data-reactroot=\"\" style=\"align-items: center; box-sizing: border-box; display: flex; font-size: 19px; font-weight: bold; justify-content: center; margin-bottom: 20px; margin-top: 28px; width: 100%\"\u003e\n\u003cdiv class=\"cms-cke-widget-title-container\" style=\"background-color: #001966; display: inline-block; margin-top: 4px; padding: 2px; position: relative; z-index: 9\"\u003e\n\u003cdiv class=\"out\" style=\"border: 1px solid #001966; box-sizing: border-box; display: inline-block; height: 100%; left: 4px; position: absolute; top: -4px; width: 100%\"\u003e \u003c/div\u003e\n\u003cdiv style=\"position: relative\"\u003e\n\u003cdiv class=\"title-normal-1-text-border\" style=\"border: 1px solid #ffffff; box-sizing: border-box; height: 199%; left: 0; position: absolute; top: 0; transform: scale(0.5); transform-origin: 0 0; width: 199%\"\u003e \u003c/div\u003e\n\u003cdiv class=\"cms-cke-widget-title-wrap title-normal-1-text\" style=\"color: #ffffff; display: inline-block; line-height: 26px; padding: 1px 12px; position: relative; text-align: center; word-break: break-all\"\u003e\n\u003cp\u003e什么是风寒效应?\u003c/p\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cp data-source=\"cke\"\u003e本轮寒潮天气过程,最大的特点是降温以及大风,在同样的气温下,如果风力加大,“风寒效应”更为明显,公众出门往往体感会更加寒冷。\u003c/p\u003e\n\u003c!--VIDEO_2--\u003e\u003cspan style=\"text-align: center;font-size: 13px;color: rgb(136, 136, 136); line-height: 14px;margin-bottom: 22px;margin-top: 8px; display: block;\"\u003e\u003c/span\u003e\n\u003cp data-source=\"cke\"\u003e在没有风的天气里,即便气温不高,也不会觉得特别冷;可一旦刮起风,寒冷感就会直线升级。这并不是风本身有温度,而是它扮演了“热量搬运工”的角色。正常情况下,人体体温高于环境气温,静风或微风时,皮肤周围会形成一层温暖的空气保温层,就像给身体裹了一层“隐形被子”。但当空气流动加速,这层保温层会被不断新来的冷空气替代,同时迅速带走皮肤表面的热量,导致体感温度大幅下降。风力越大,热量流失速度越快,我们就会觉得越冷。\u003c!--MID_AD_3--\u003e\u003c!--EOP_3--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_3--\u003e\n\u003cp\u003e\u003c!--IMG_3--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e除了风力,湿度也是影响风寒效应的关键因素。湿润的空气导热性更强,能更快地带走人体热量。所以在阴冷潮湿的天气里,即便风力不大,也会让人感觉格外寒冷,气温在0℃以下时,每增加2级风力,体感温度会下降6℃至8℃。更值得注意的是,人体头部是热量散失的主要区域,气温4℃左右时,约二分之一的热量从头部散发;零下10℃时,这一比例高达四分之三。\u003c!--MID_AD_4--\u003e\u003c!--EOP_4--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_4--\u003e\n\u003cp\u003e\u003c!--IMG_4--\u003e\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e了解了风寒效应的原理,冬季防寒保暖就有了针对性。专家提醒,出门前除了关注气温,也要留意风速和湿度预报。穿戴方面,要选择防风保暖的衣物,尽量减少皮肤裸露,尤其是做好头部防护,戴帽子、围围巾都是简单有效的办法。\u003c/p\u003e\n\u003cp data-source=\"cke\"\u003e(总台央视记者 吴薇)\u003c/p\u003e\n\n\n\u003cstyle\u003e.rich_media_content{--news-tabel-th-night-color: #444444;--news-font-day-color: #333;--news-font-night-color: #d9d9d9;--news-bottom-distance: 22px}.rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.rich_media_content{color:var(--news-font-day-color);font-size:18px}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content{color:var(--news-font-night-color)}}.data_color_scheme_dark .rich_media_content p:not([data-exeditor-arbitrary-box=image-box]){letter-spacing:.5px;line-height:30px;margin-bottom:var(--news-bottom-distance);word-wrap:break-word}.data_color_scheme_dark .rich_media_content{color:var(--news-font-night-color)}.data_color_scheme_dark .rich_media_content{font-size:18px}.rich_media_content p[data-exeditor-arbitrary-box=image-box]{margin-bottom:11px}.rich_media_content\u003ediv:not(.qnt-video),.rich_media_content\u003esection{margin-bottom:var(--news-bottom-distance)}.rich_media_content hr{margin-bottom:var(--news-bottom-distance)}.rich_media_content .link_list{margin:0;margin-top:20px;min-height:0!important}.rich_media_content blockquote{background:#f9f9f9;border-left:6px solid #ccc;margin:1.5em 10px;padding:.5em 10px}.rich_media_content blockquote p{margin-bottom:0!important}.data_color_scheme_dark .rich_media_content blockquote{background:#323232}@media(prefers-color-scheme:dark){body:not([data-weui-theme=light]):not([dark-mode-disable=true]) .rich_media_content blockquote{background:#323232}}.rich_media_content ol[data-ex-list]{--ol-start: 1;--ol-list-style-type: decimal;list-style-type:none;counter-reset:olCounter calc(var(--ol-start,1) - 1);position:relative}.rich_media_content ol[data-ex-list]\u003eli\u003e:first-child::before{content:counter(olCounter,var(--ol-list-style-type)) '. 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