<p>来自移动极地涡旋的三轮寒冷北极空气中的第一轮已使美国中部和东部的气温骤降，威胁到从爱荷华州到缅因州的数百年低温记录。</p>
<p>气象学家预测，在接下来的两周内，数百万人将面临两次更强的寒冷气温袭击。</p>
<p>AccuWeather 高级气象学家 Renee Duff 表示：“本周将以本季迄今为止最冷的空气结束，随着一股冷锋从中西部向东北部和中大西洋地区推进。”</p>
<p>Duff 解释道：“极地涡旋的位移使北极空气渗入美国中部和东部。下周有第二轮寒潮的预报，而本月中旬可能会有第三轮寒冷空气。”</p>
<h2><strong>北极空气何时到达？会有多冷？</strong></h2>
<p>周四，严寒的气温袭击了中西部的部分地区。在爱荷华州，十多个城市创下了新的低温记录。在沃特卢，气温为-15 度，打破了 1991 年创下的-7 度记录。</p>
<p>未来几天可能会有更多记录被打破。</p>
<blockquote>
<p>在接下来的几天里，中西部、俄亥俄河谷和中大西洋地区可能会出现创纪录的寒冷天气。预计明天早晨中西部部分地区的低温将降至零度以下。请确保适当着装，以避免冻伤/低体温的风险，并限制户外活动时间。 pic.twitter.com/QZJ9Th2JIY</p>
<p>— NWS 天气预报中心 (@NWSWPC) 2025 年 12 月 3 日</p>
</blockquote>
<p>周五早晨，北中大西洋和新英格兰地区感受到了寒冷。</p>
<p>在纽约市，气温徘徊在 20 度左右，而新英格兰大部分地区的气温在低十到中十度之间。在纽约州的奥尔巴尼，气温为个位数：零度以上 1 度。</p>
<p><img src="https://imageproxy.pbkrs.com/https://s.yimg.com/ny/api/res/1.2/R1moKg8uEIkwmkyZfZd01w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzNA--/https://d29szjachogqwa.cloudfront.net/images/user-uploaded/AP25337705883714.jpg?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" alt="" original-src="https://imageproxy.pbkrs.com/https://s.yimg.com/ny/api/res/1.2/R1moKg8uEIkwmkyZfZd01w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzNA--/https://d29szjachogqwa.cloudfront.net/images/user-uploaded/AP25337705883714.jpg"/></p>
<p>一名女性于 12 月 3 日在科罗拉多斯普林斯跑步。（Christian Murdock/《公报》通过美联社）</p>
<p>由于北极空气的袭击，从达科他州和明尼苏达州到爱荷华州和内布拉斯加州也预计会出现零下气温。</p>
<p>在接下来的几天里，以下是 NWS 的总体气温预报：</p>
<ul>
<li>中西部：十几度到 20 度</li>
<li>新英格兰：20 度到 30 度</li>
<li>中部/南部平原东至中大西洋：30 度到 40 度</li>
<li>德克萨斯州和东南部：40 度到 50 度</li>
</ul>
<p>AccuWeather 首席长期气象学家 Paul Pastelok 表示：“本周的寒潮将是可能的三轮寒潮中的第一轮。下周可能会有另一轮寒潮，之后一周还会有第三轮。”</p>
<h2><strong>什么是极地涡旋？</strong></h2>
<p>让我们从 “极地” 部分开始。一个大范围的低气压和冷空气始终环绕着地球的南北极。“涡旋” 指的是保持冷空气靠近两极的逆时针气流方向。根据 NWS 的说法，在北半球的冬季，极地涡旋扩展是很常见的，它将来自北极的冷空气沿着喷流推向南方。</p>
<h2><strong>如果停电，如何保持安全</strong></h2>
<p>AccuWeather 建议人们完成冬季化家庭和水管的工作，并尽快检查炉子，订购取暖油或丙烷。</p>
<p>以下是美国红十字会在停电和主要供热源失效时推荐的一些事项：</p>
<ul>
<li>仅在户外且远离窗户的地方使用发电机、烧烤架和露营炉，以防止一氧化碳中毒。</li>
<li>切勿使用烹饪烤箱或炉灶来加热家中，因为这可能导致一氧化碳中毒和家庭火灾。</li>
<li>由于火灾风险，使用电池供电的灯笼或手电筒，而不是蜡烛。</li>
<li>关闭不需要的房间。</li>
<li>使用壁炉和取暖器时要小心。确保任何可能着火的物品与热源保持至少 3 英尺的距离。</li>
</ul>
<h2><strong>如果必须外出，如何保持安全</strong></h2>
<p>美国红十字会建议，如果您必须外出，尽量覆盖尽可能多的皮肤以避免冻伤。穿着宽松的多层保暖衣物和帽子；手腕紧的手套比普通手套更好。佩戴滑雪面罩或围巾以帮助遮住面部，并尽可能穿防水靴，以保持双脚干燥。</p>
<p>避免因在深雪中行走而导致的过度劳累；这可能引发心脏病发作或更严重的医疗状况。</p>

COLD

<p>三重极地涡旋正在导致美国中部和东部的气温骤降，威胁创下历史低温。气象学家预测未来几周还将出现两次北极冷空气侵袭。建议采取安全措施以应对停电和户外活动，以防止冻伤和低体温症</p>

<p>The first of three rounds of cold Arctic air from a shifting polar vortex has sent temperatures plunging across the central and eastern U.S., threatening centuries-old record lows in cities and towns from Iowa to Maine.</p>
<div class="lb-trans"><p>来自移动极地涡旋的三轮寒冷北极空气中的第一轮已使美国中部和东部的气温骤降，威胁到从爱荷华州到缅因州的数百年低温记录。</p>
</div><p>And meteorologists forecast two more blasts of frigid temperatures for millions of people over the next two weeks.</p>
<div class="lb-trans"><p>气象学家预测，在接下来的两周内，数百万人将面临两次更强的寒冷气温袭击。</p>
</div><p>“The week will end with some of the coldest air of the season so far, as a front advances from the Midwest into the Northeast and mid-Atlantic,” said Renee Duff, AccuWeather senior meteorologist.</p>
<div class="lb-trans"><p>AccuWeather 高级气象学家 Renee Duff 表示：“本周将以本季迄今为止最冷的空气结束，随着一股冷锋从中西部向东北部和中大西洋地区推进。”</p>
</div><p>“A displacement of the polar vortex is allowing Arctic air to seep into the central and eastern U.S.,” Duff explained. “A second cold outbreak is in the forecast next week, and a third round of frigid air is likely during the middle of the month.”</p>
<div class="lb-trans"><p>Duff 解释道：“极地涡旋的位移使北极空气渗入美国中部和东部。下周有第二轮寒潮的预报，而本月中旬可能会有第三轮寒冷空气。”</p>
</div><h2><strong>When will the Arctic air arrive? And how cold will it get?</strong></h2>
<div class="lb-trans"><h2><strong>北极空气何时到达？会有多冷？</strong></h2>
</div><p>Brutally cold temperatures hit portions of the Midwest on Thursday. In Iowa, more than a dozen cities set new record lows. In Waterloo, it was -15 degrees, breaking the record of -7 degrees set in 1991.</p>
<div class="lb-trans"><p>周四，严寒的气温袭击了中西部的部分地区。在爱荷华州，十多个城市创下了新的低温记录。在沃特卢，气温为-15 度，打破了 1991 年创下的-7 度记录。</p>
</div><p>And more could be broken in the coming days.</p>
<div class="lb-trans"><p>未来几天可能会有更多记录被打破。</p>
</div><blockquote>
<p>Record cold is possible over the next few days across the Midwest, Ohio Valley, and Mid-Atlantic. Lows are forecast to drop below zero across parts of the Midwest tomorrow morning. Be sure to dress appropriately to avoid the risk of frostbite/hypothermia and limit time outdoors. pic.twitter.com/QZJ9Th2JIY</p>
<p>— NWS Weather Prediction Center (@NWSWPC) December 3, 2025</p>
</blockquote>
<div class="lb-trans"><blockquote>
<p>在接下来的几天里，中西部、俄亥俄河谷和中大西洋地区可能会出现创纪录的寒冷天气。预计明天早晨中西部部分地区的低温将降至零度以下。请确保适当着装，以避免冻伤/低体温的风险，并限制户外活动时间。 pic.twitter.com/QZJ9Th2JIY</p>
<p>— NWS 天气预报中心 (@NWSWPC) 2025 年 12 月 3 日</p>
</blockquote>
</div><p>The northern mid-Atlantic and New England felt the freeze on Friday morning.</p>
<div class="lb-trans"><p>周五早晨，北中大西洋和新英格兰地区感受到了寒冷。</p>
</div><p>In New York City, temperatures hovered around 20 degrees, with readings in the low- to mid-teens for much of New England. In Albany, N.Y., it was a single digit: 1 degree above zero.</p>
<div class="lb-trans"><p>在纽约市，气温徘徊在 20 度左右，而新英格兰大部分地区的气温在低十到中十度之间。在纽约州的奥尔巴尼，气温为个位数：零度以上 1 度。</p>
</div><p><img src="https://imageproxy.pbkrs.com/https://s.yimg.com/ny/api/res/1.2/R1moKg8uEIkwmkyZfZd01w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzNA--/https://d29szjachogqwa.cloudfront.net/images/user-uploaded/AP25337705883714.jpg" alt="" original-src="https://s.yimg.com/ny/api/res/1.2/R1moKg8uEIkwmkyZfZd01w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzNA--/https://d29szjachogqwa.cloudfront.net/images/user-uploaded/AP25337705883714.jpg"/></p>
<p>A woman runs in Colorado Springs, Colo., on Dec. 3. (Christian Murdock/The Gazette via AP)</p>
<div class="lb-trans"><p>一名女性于 12 月 3 日在科罗拉多斯普林斯跑步。（Christian Murdock/《公报》通过美联社）</p>
</div><p>Subzero temperatures are also expected from the Dakotas and Minnesota to Iowa and Nebraska due to the blast of Arctic air.</p>
<div class="lb-trans"><p>由于北极空气的袭击，从达科他州和明尼苏达州到爱荷华州和内布拉斯加州也预计会出现零下气温。</p>
</div><p>For the next couple of days, here are the general forecast temperature highs from the NWS:</p>
<div class="lb-trans"><p>在接下来的几天里，以下是 NWS 的总体气温预报：</p>
</div><ul>
<li>Midwest: teens to 20s</li>
<li>New England: 20s and 30s</li>
<li>Central/southern Plains east to the mid-Atlantic: 30s and 40s</li>
<li>Texas and Southeast: 40s and 50s</li>
</ul>
<div class="lb-trans"><ul>
<li>中西部：十几度到 20 度</li>
<li>新英格兰：20 度到 30 度</li>
<li>中部/南部平原东至中大西洋：30 度到 40 度</li>
<li>德克萨斯州和东南部：40 度到 50 度</li>
</ul>
</div><p>“The outbreak this week will be the first of probably three such rounds with it,” said AccuWeather’s lead long-range meteorologist, Paul Pastelok. “Another cold blast is likely next week and a third the week after that.”</p>
<div class="lb-trans"><p>AccuWeather 首席长期气象学家 Paul Pastelok 表示：“本周的寒潮将是可能的三轮寒潮中的第一轮。下周可能会有另一轮寒潮，之后一周还会有第三轮。”</p>
</div><h2><strong>What is a polar vortex?</strong></h2>
<div class="lb-trans"><h2><strong>什么是极地涡旋？</strong></h2>
</div><p>Let’s start with the “polar” part. A large area of low pressure and cold air is always surrounding Earth’s north and south poles. “Vortex” refers to the counterclockwise direction of air that keeps the colder air near both poles. During wintertime in the northern hemisphere, it’s common for the polar vortex to expand, pushing the cold air from the north pole to the south along the jet stream, according to the NWS.</p>
<div class="lb-trans"><p>让我们从 “极地” 部分开始。一个大范围的低气压和冷空气始终环绕着地球的南北极。“涡旋” 指的是保持冷空气靠近两极的逆时针气流方向。根据 NWS 的说法，在北半球的冬季，极地涡旋扩展是很常见的，它将来自北极的冷空气沿着喷流推向南方。</p>
</div><h2><strong>Staying safe if you lose power</strong></h2>
<div class="lb-trans"><h2><strong>如果停电，如何保持安全</strong></h2>
</div><p>AccuWeather advises people to complete winterizing their homes and water lines, and to have their furnaces checked and heating oil or propane ordered as soon as possible.</p>
<div class="lb-trans"><p>AccuWeather 建议人们完成冬季化家庭和水管的工作，并尽快检查炉子，订购取暖油或丙烷。</p>
</div><p>Here are some things the American Red Cross recommends if you lose power and your main heat source:</p>
<div class="lb-trans"><p>以下是美国红十字会在停电和主要供热源失效时推荐的一些事项：</p>
</div><ul>
<li>Only use generators, grills and camp stoves that are placed outdoors and away from windows to prevent carbon monoxide poisoning.</li>
<li>Never use a cooking oven or stove to heat your home, as this can lead to carbon monoxide poisoning and home fires.</li>
<li>Use battery-powered lanterns or flashlights instead of candles due to the fire risk.</li>
<li>Close off any rooms you don’t need.</li>
<li>Use care when using fireplaces and space heaters. Keep anything that could catch fire at least 3 feet away from the heat source.</li>
</ul>
<div class="lb-trans"><ul>
<li>仅在户外且远离窗户的地方使用发电机、烧烤架和露营炉，以防止一氧化碳中毒。</li>
<li>切勿使用烹饪烤箱或炉灶来加热家中，因为这可能导致一氧化碳中毒和家庭火灾。</li>
<li>由于火灾风险，使用电池供电的灯笼或手电筒，而不是蜡烛。</li>
<li>关闭不需要的房间。</li>
<li>使用壁炉和取暖器时要小心。确保任何可能着火的物品与热源保持至少 3 英尺的距离。</li>
</ul>
</div><h2><strong>Staying safe if you have to go outdoors</strong></h2>
<div class="lb-trans"><h2><strong>如果必须外出，如何保持安全</strong></h2>
</div><p>The American Red Cross advises that if you must go outside, keep as much of your skin covered as possible to avoid frostbite. Wear layers of loose-fitting, warm clothing and a hat; mittens snug at the wrist are better than gloves. Wear a ski mask or a scarf to help cover your face, and water-resistant boots, if possible, to help keep your feet dry.</p>
<div class="lb-trans"><p>美国红十字会建议，如果您必须外出，尽量覆盖尽可能多的皮肤以避免冻伤。穿着宽松的多层保暖衣物和帽子；手腕紧的手套比普通手套更好。佩戴滑雪面罩或围巾以帮助遮住面部，并尽可能穿防水靴，以保持双脚干燥。</p>
</div><p>Avoid overexertion that often occurs from walking through deep snow; it could bring on a heart attack or a more serious medical condition.</p>
<div class="lb-trans"><p>避免因在深雪中行走而导致的过度劳累；这可能引发心脏病发作或更严重的医疗状况。</p>
</div>

三重极地漩涡使美国中部和东部的气温急剧下降，首波北极寒流已经到来