A风暴系统周三晚上，在美国中心地带可能引发了多次龙卷风，这在12月份是罕见的毁灭的痕迹数十万人断电。
据美联社报道，至少有五人在风暴中丧生，其中包括堪萨斯州的三人，他们死于强风吹起的致盲泥土造成的车祸。
据报道，周三至周四，爱荷华州、内布拉斯加州、明尼苏达州和威斯康星州四个州至少发生了23次龙卷风，国家气象局迄今已确认至少有6次。
根据power disease . us收集的数据，截至美国东部时间周四下午6点，中西部地区有超过33.2万客户断电，其中密歇根州和威斯康星州断电最多
据美国国家气象局称，周三晚上，龙卷风威胁到爱荷华州、明尼苏达州和威斯康星州后，龙卷风袭击了明尼苏达州的普莱恩维尤，就在罗切斯特市外。这是明尼苏达州第一次在12月记录龙卷风，也是有史以来第一次在12月为该州发布龙卷风警报。
威斯康星州出现了自1970年以来的第一次12月龙卷风，到目前为止已经确认了两次，包括在尼尔斯维尔的一次EF-2。
附近的罗彻斯特消防部门在一份关于脸书的声明中说，在“创纪录的风暴和阵风”期间，他们的官员“忙碌了一夜”，响应了35个求助电话事故包括多起小火灾、煤气泄漏、倒下的电线和其他由倒下的树木造成的危险。最重大的事件是一个电线杆上燃烧的变压器蔓延到附近一个独立的车库，点燃了整个建筑。罗切斯特警方说，没有人受伤，附近的房子也没有受到火灾的影响。
斯坦利警察局
2021年12月15日，威斯康星州斯坦利的风暴破坏。
一场龙卷风在明尼苏达州的哈特兰被证实，距离罗切斯特西南约65英里。周围的弗里伯恩县大约有35到40栋房屋受损，大部分都很轻微，哈特兰是受灾最严重的城市。根据费伯伦县应急管理部门的说法，该地区的商业建筑遭到“严重破坏”，多条电力线被推倒。没有风暴造成的伤害。
与此同时，威斯康辛州斯坦利报道了大范围的风暴破坏，龙卷风已被确认。斯坦利警察局在一份关于脸书的声明中说，风暴在整个城市造成了财产损失，但没有人员受伤。
斯坦利警方说:“黎明将揭示城市内部损害的真实程度，但我们确信，随着我们开始恢复和前进，这场风暴将带来社区的真正定义。”
未来几天，风暴系统以及冷锋将在中南部和俄亥俄山谷地区停滞，给中西部和南部的一些州带来大雨遭受致命龙卷风的重创上周末，根据国家气象局的最新预报。
多个龙卷风是十二月不寻常在美国。根据美国国家海洋和大气管理局的数据，尽管龙卷风可能在一年中的任何时候发生，但最大的威胁通常发生在春季和夏季，对于更多的南方州来说，高峰季节会更早。
Rare tornadoes strike America's heartland, destroying homes and knocking out power
Astorm systemthat spawned possibly multiple tornadoes across America's heartland on Wednesday night -- rare for December -- has left atrail of destructionand hundreds of thousands without power.
At least five people were killed in the storms, according to The Associated Press, including three in Kansas killed in car crashes caused by blinding dirt kicked up by the strong winds.
At least 23 tornadoes were reported across four states -- Iowa, Nebraska, Minnesota and Wisconsin -- between Wednesday and Thursday, with at least six so far confirmed by the National Weather Service.
As of 6 p.m. ET on Thursday, more than 332,000 customers were without power across the Midwest, with Michigan and Wisconsin accounting for the highest volume of outages, according to data collected by PowerOutage.US.
A twister touched down in Plainview, Minnesota, just outside Rochester, on Wednesday evening, after tornado threats were issued for Iowa, Minnesota and Wisconsin, according to the National Weather Service. It was the first time Minnesota recorded a tornado in December, and the first-ever tornado watch and tornado warning to be issued for the state in December.
Wisconsin saw its first December tornado since 1970, with two so far confirmed, including an EF-2 in Neillsville.
The nearby Rochester Fire Department said in a statement on Facebook that its officers had a "busy night" responding to 35 calls for help during the "record storm and wind gusts." Incidents included multiple small fires, gas leaks, downed power lines and other hazards caused by falling trees. The most significant event was a burning transformer on a power pole that spread to a nearby detached garage, setting the structure ablaze. There were no injuries and the nearby home was not impacted by the fire, Rochester police said.
A tornado was confirmed in Hartland, Minnesota, about 65 miles southwest of Rochester. About 35 to 40 houses in the surrounding Freeborn County were damaged, mostly minor, with Hartland being the worst-hit city. Commercial buildings in the area suffered "substantial damage" and several power lines were knocked down, according to the Freeborn County Emergency Management. There were no storm-related injuries.
Meanwhile, extensive storm damage was reported in Stanley, Wisconsin, where a tornado was confirmed. The Stanley Police Department said in a statement on Facebook that the storm resulted in property damage throughout the city but no injuries.
"Daybreak will reveal the true extent of damages within the city," Stanley police said, "but we are certain this storm will bring out the true definition of community as we begin to recover and move forward."
The storm system, along with a cold front, will stall over the Mid-South and Ohio Valley regions over the next few days, bringing heavy rain to some states in the Midwest and South that werehit hard by deadly tornadoeslast weekend, according to the latest forecast from the National Weather Service.
Multiple tornadoes areunusual for Decemberin the United States. While twisters can happen any time of year, the greatest threat is typically in spring and summer with the peak season on the earlier side for more southern states, according to the National Oceanic and Atmospheric Administration.
