周五，一场大规模的冬季风暴席卷了美国北部，一些地方出现了眩目的大雪，另一些地方出现了冻雨，几个州出现了狂风和严寒。

　　至少有一人被怀疑死于最新一轮的危险天气——一名男子被认为死于爱达荷州偏远地区的雪崩。大雪和强风使得爱荷华州的部分地区几乎无法开车，以至于共和党总统候选人取消了竞选活动。冻雨带来的“黑冰”使密苏里州堪萨斯城陷入瘫痪。

　　在爱达荷州，周四下午，两名男子在蒙大拿州边境附近遭遇雪崩后获救，但第三名男子失踪，据推测已经死亡。美国空军参与了搜救工作。当局不确定这些人在该地区做了什么，该地区几天来一直处于雪崩危险警告之下。

　　就在爱达荷州雪崩发生的前一天，加利福尼亚州周三报道了美国本季度首例雪崩死亡病例。

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　　科学家解释了2023年创纪录的高温，全球变暖可能正在“恶化”

　　43年后，鲁托的校长见到了他的学生，沉浸在荣耀之中

　　热降低全球河流水质

　　在周一爱荷华州党团会议前竞选的共和党候选人面临覆盖该州大部分地区的暴风雪警告。尼基·黑利(Nikki Haley)的竞选团队取消了周五的三场活动，并表示将举办“电话市政厅”。罗恩·德桑蒂斯的竞选活动推迟了马歇尔敦和克利尔湖的活动。

　　爱荷华州交通部周五发布的路况地图显示，几乎所有主要高速公路和州际公路都部分或完全被覆盖。该机构表示，在一些地方，司机的能见度“接近于零”，风力驱动的积雪迅速抹去了犁司机的工作成果。

　　爱荷华州巡逻队发布了一艘结冰残骸的照片。“请不要将自己或他人置于危险之中，”该机构写道。“路况非常危险!”

　　一些地方发布了暴风雪警报，包括明尼苏达州西南部和威斯康星州的绿湾地区。密尔沃基地区的天气预报称，大雪将持续到周六上午，风速可达64公里/小时(40英里/小时)。

　　雪并不是唯一的问题

　　在堪萨斯城，冻雨在道路上形成了一层冰冷的光泽，“黑冰”造成了数十起事故。十几岁左右的气温加上超过32公里/小时(20英里/小时)的风速，造成了零下23摄氏度(零下9华氏度)的刺骨寒风。

　　寒冷是达科他州最大的担忧。周五早上，北达科他州俾斯麦的气温为零下24摄氏度(零下11华氏度)，天气预报员警告说，周末的天气会更糟。到周日早些时候，气温可能达到零下29摄氏度(零下20华氏度)。

　　周五早上，整个蒙大拿州的气温都低于华氏零度，落基山脉东部边缘和该州中部地区的风寒低至零下49摄氏度(零下56华氏度)。

　　航班取消很常见。在芝加哥，周五该市两个主要机场有1000多个航班被取消。美国国家气象局表示，到周六，伊利诺伊州部分地区的降雪量可能高达30.5厘米(12英寸)。

　　待通知。订阅我们的时事通讯

　　Near-record cold in Kansas City will make for a frigid NFL playoff game Saturday night, when the Chiefs host Miami at Arrowhead Stadium. The temperature could be below zero by kickoff and get worse as the game goes on.

　　Another playoff game will face winter’s wrath on Sunday. Fans in Buffalo will contend with up to a foot of snow and fierce winds as the Bills host Pittsburgh.

　　Flooding in the Northeast

　　Other areas of the Northeast had flooding concerns. Emergency responders helped evacuate some residents from their homes in Paterson, New Jersey, early Friday as the Passaic River started overflowing its banks. The new storm, combined with one earlier in the week, created flooding worries in Maine and New Hampshire, too.

　　Volunteers and city leaders in several places were worried about the homeless.

　　Portland, Oregon, is more accustomed to winter rain, but snow was in the forecast. Tyrone McDougald wore a long-eared, leopard-style hat on Thursday as he sorted through racks of warm clothes at a homeless service center. He was already wearing multiple layers, but with no roof of his own, he grabbed two more coats to help him face a bitter cold snap arriving in the Northwest.

　　“I’m hoping that I can get in a shelter,” he said. “That would relieve a lot of the burden.”

　　In one hour Thursday, during the lunch service at Blanchet House, a homeless services nonprofit in Portland, about 165 warm clothing items were claimed — including the coats McDougald grabbed.

　　Julie Showers, the nonprofit’s spokesperson, said people were desperate for dry clothes and shoes after days of cold rain.

　　“We worry about frostbite, hypothermia,” she said. “There are a lot of people experiencing homelessness in Portland that are in mental health crisis ... and slowly become hypothermic laying on the street because they don’t understand how cold it’s getting.”

　　In the Chicago area, advocates worried for the growing population of migrants sent from the U.S.-Mexico border. Hundreds are staying in eight parked “warming buses” to avoid sleeping outside while they await space in city-run shelters.

　　Among them was Angelo Travieso, a Venezuelan bused from Texas. He wore a light jacket and sandals with socks.

　　“I slept sitting because there is almost no space left,” he said. “The buses are also small, and you practically have to stay inside because of the heating, because it is deadly cold outside.”