周五，恶劣的天气给中心地带带来了一连串的破坏，造成83人死亡关于龙卷风的报道横跨五个州。
持续多日的龙卷风周六继续爆发，预计从德克萨斯州到五大湖都将有强风暴。
从得克萨斯州到爱荷华州，六个州的部分地区已经进入龙卷风警戒状态。随着时间的推移，这只表可能会稍微向东扩展。
周六，德克萨斯州、俄克拉荷马州、堪萨斯州和密苏里州的部分地区预计将出现中度风险(5级中的4级)，预计下午和晚上风暴将再次席卷美国大片地区。有可能出现强劲的长路径龙卷风以及直径达3英寸的大冰雹和时速高达80英里的雷暴大风。
除了数十起龙卷风报告外，周五还有33起破坏性大风报告和60起大冰雹报告。
在爱荷华州，该县官员表示，恶劣天气袭击波塔瓦米县后，周五有四人受伤，约120座建筑物受损。
据该县称，明登市是周五风暴中受灾最严重的地区。天然气和电力已经中断，晚上10点的宵禁已经发布，直到另行通知。
波塔瓦米县州长金·雷诺兹和明登市都宣布进入紧急状态。
内布拉斯加州东部也有严重破坏的报道，包括道格拉斯县，周五奥马哈地区有数百所房屋受损。
国家气象局的克里斯·弗兰克斯在周六的新闻发布会上说，初步信息表明，两场“强烈、罕见的龙卷风”在道格拉斯县登陆。弗兰克斯说，国家气象局在周五的风暴后发现了EF-2和EF-3龙卷风破坏的证据。
官员们说，风暴过后，到目前为止还没有人员死亡的报道。
道格拉斯县应急管理保罗·约翰逊在新闻发布会上说:“对于如此大的风暴来说，财产损失如此之大，却没有人员伤亡。“这是奥马哈这座城市的巨大贡献。“
内布拉斯加州州长吉姆·皮伦敦促人们继续保持安全，因为风暴威胁将持续到周六晚上。
周六至今已有七起龙卷风报道。德克萨斯州诺克斯市发布了龙卷风紧急警报，据报道，该镇附近出现了一场大规模破坏性龙卷风。据报道，这场龙卷风还带来了棒球大小的冰雹。
周六，在堪萨斯州、内布拉斯加州和密苏里州的交界处附近，龙卷风已经被确认。已确认的龙卷风位于堪萨斯州罗宾逊以北8英里处。
周六各种恶劣天气都有可能发生。
破坏性的大风、巨大的冰雹和长距离的龙卷风都有可能发生，尤其是在堪萨斯州、俄克拉荷马州和德克萨斯州东北部。总的来说，从加拿大到墨西哥，美国中部都面临着严重的天气威胁。
这些危险风暴的威胁持续了一整夜。
除了雷暴威胁之外，这一大风暴系统还有山洪暴发的风险。
从德克萨斯州到爱荷华州的八个州的洪水观察一直持续到周一下午。这是因为暴雨可能会在短时间内倾泻大量降雨，导致危险的山洪暴发。
短时间内可能会有超过2到5英寸的降雨，促使天气预报中心发布从德克萨斯州到密苏里州降雨量过多的中度风险。
“对俄克拉荷马州中东部部分地区正在发生的重大山洪事件的信心仍然很高，周六晚些时候开始到周六晚上，降雨总量较高，”天气预测中心说。
过度降雨的“高风险”是可能的最大威胁。三分之一与洪水相关的死亡发生在高风险地区。这是导致高风险发布的罕见且严重的危及生命的洪水事件预测。
国家气象局将在本周末进行损失调查，以确定已确认的龙卷风数量，以及强度等级和其他细节。
周日，威胁有所减少，但从德克萨斯州的奥斯汀到爱荷华州的达文波特，包括路易斯安那州的什里夫波特，仍有可能出现破坏性的大风、大冰雹和几场龙卷风;阿肯色州的小石城;堪萨斯城和密苏里州的圣路易斯。
Tornado threat continues after 4 injured, hundreds of homes damaged
Severe weather left a trail of destruction in the Heartland on Friday with 83reports of tornadoesacross five states.
The multi-day tornado outbreak continues Saturday, with powerful storms expected from Texas to the Great Lakes.
There is a tornado watch in effect for parts of six states, from Texas to Iowa into the late evening. This watch will likely expand east slightly as the day wears on.
A moderate risk -- level 4 out of 5 -- is in the outlook for parts of Texas, Oklahoma, Kansas and Missouri Saturday, with storms expected to flare up again in the afternoon and evening across a huge area of the country. There is a chance for strong long-track tornadoes as well as very large hail up to 3 inches in diameter and thunderstorm winds up to 80 mph.
In addition to dozens of tornado reports, Friday saw 33 damaging wind reports and 60 large hail reports.
In Iowa, four people were injured Friday and approximately 120 structures were damaged after severe weather hit Pottawattamie County, officials in that county said.
The city of Minden was the hardest hit area in Friday's storms, according to the county. Gas and power have been disrupted, and a 10 p.m. curfew has been issued until further notice.
Gov. Kim Reynolds, Pottawattamie County, and the City of Minden have all declared a state of emergency.
Severe damage was also reported across eastern Nebraska, including Douglas County, where hundreds of homes were damaged in the Omaha area Friday.
Preliminary information suggests that two "strong, rare tornadoes" touched down in Douglas County, Chris Franks with the National Weather Service said during a press briefing on Saturday. The National Weather Service found evidence of EF-2 and EF-3 tornado damage there following Friday's storms, Franks said.
No fatalities have been reported so far following the storms, officials said.
"For that big of a storm, to have the property damage that was so extensive, without the loss of life," Douglas County Emergency Management Paul Johnson said at the press briefing. "It's a tremendous attribute to the city of Omaha."
Nebraska Gov. Jim Pillen urged people to continue to stay safe as the storm threat continues into Saturday evening.
There have been seven tornado reports so far Saturday. One tornado emergency was issued for Knox City, Texas, where a large and damaging tornado was reported near the town. Baseball-sized hail was also reported with this tornadic storm.
A tornado was confirmed Saturday near the intersection of Kansas, Nebraska and Missouri. The confirmed tornado was eight miles north of Robinson, Kansas.
All modes of severe weather are likely on Saturday.
Damaging winds, huge hail, and long-track tornadoes are all in the cards, especially in Kansas, Oklahoma and northeast Texas. Overall, there is a severe weather threat stretching across the central U.S. from Canada to Mexico.
The threat for these dangerous storms continues into the overnight hours.
In addition to the thunderstorm threat, there is also a flash flood risk with this major storm system.
A flood watch is in effect for eight states from Texas to Iowa until Monday afternoon. This is because heavy downpours may dump significant rainfall in a short time and lead to dangerous flash flooding.
More than 2 to 5 inches of rain may be falling in a short period of time, prompting the Weather Prediction Center to issue a Moderate Risk for Excessive Rainfall from Texas to Missouri.
"Confidence continues to be high in a major flash flood event unfolding for portions of east-central Oklahoma with higher end rainfall totals Saturday beginning late this evening into Saturday night," the Weather Prediction Center said.
A "high risk" for excessive rainfall is the greatest level threat possible. One-third of all flood-related fatalities occur in high-risk areas. It is a rare and serious life-threatening flood event forecast that leads to a high-risk issuance.
The National Weather Service will be conducting damage surveys this weekend to determine the number of confirmed tornadoes, as well as the intensity ratings and other details.
On Sunday, the threat is reduced, but still there is a chance for damaging wind, large hail and a few tornadoes from Austin, Texas, to Davenport, Iowa, and includes Shreveport, Louisiana; Little Rock, Arkansas; Kansas City and St. Louis, Missouri.
