Newsweek reached out via email to the NWS and Greenwood Mayor Mark Myers for comment.

《新闻周刊》通过电子邮件联系了 NWS 和格林伍德市长马克迈尔斯征求意见。

John Gordon of the NWS in Louisville, Kentucky called what happened on Friday " the worst-case scenario" .

肯塔基州路易斯维尔的国家气象局气象学家约翰·戈登称，周五发生的事情是" 最糟糕的情况" 。

Hail, with some stones as large as baseballs, also pummeled parts of Indiana, according to the NWS.

据 NWS 报道，冰雹夹杂着一些棒球大小的石块，也击中了印第安纳州的部分地区。

There's Airnow. gov, IQAir, Purple Air, and your local National Weather Service (you can get there by googling your town and " NWS" ) .

有 Airnow.gov、IQAir、Purple Air 和当地的国家气象局（您可以用谷歌搜索您所在的城市和 " NWS" ）。

In its advisory, the NWS said the powerful winter storm could produce widespread disruption and potentially crippling impacts across the central and eastern United States.

美国国家气象局在建议中表示，这场强大的冬季风暴可能会对美国中部和东部造成大范围破坏，并可能造成严重影响。

The US National Weather Service (NWS) on Wednesday issued air quality alerts for at least 20 states from Minnesota to as far south as Georgia.

美国国家气象局（NWS）周三发布了至少 20 个州的空气质量警报，从明尼苏达州到佐治亚州。

" If you have to be outside, take breaks indoors and consider using an N-95 mask to help reduce the smoke you breathe in, " the NWS suggested.

“如果你必须在外面，在室内休息一下，考虑使用 N95 型口罩来帮助减少你吸入的烟雾，”NWS 建议道。

Greenwood, a city of about 65,000 people located roughly 20 minutes south of Indianapolis, was slammed by storm, the Indianapolis office of the National Weather Service (NWS) confirmed.

印第安纳波利斯国家气象局（NWS）的办事处证实，格林伍德是一个位于印第安纳波利斯以南约 20 分钟车程处的约 65000 人口的城市，遭受了这场暴风雨的袭击。

Just after 4: 20 p. m. local time, NWS Indianapolis sent out a tornado warning on Twitter for the Greenwood area, cautioning that a tornado had been " observed."

当地时间下午 4 点 20 分不久，印第安纳波利斯国家气象局（NWS）在推特上发布了关于格林伍德地区的龙卷风警报，警告称已经“观察到”了一起龙卷风。