联邦调查人员计划周一向公众通报情况，此前一架飞往巴哈马的飞机在佛罗里达州棕榈滩县一个社区坠毁。
Federal investigators are set to brief the public Monday after a Bahamas-bound plane crashed in a Palm Beach County, Florida, neighborhood.
联邦调查人员计划周一就一架飞往巴哈马的飞机坠毁事件提供最新情况，该飞机周日在佛罗里达州南部一个社区坠毁，机上九人全部遇难。
Federal investigators are scheduled to provide an update Monday on the crash of a Bahamas-bound plane that went down in a South Florida neighborhood Sunday, killing all nine people on board.
美国国家运输安全委员会官员预计将于下午1点在西棕榈滩举行新闻发布会，距离一架庞巴迪挑战者600型飞机在一家拖车公园入口处坠毁大约24小时。
National Transportation Safety Board officials are expected to hold a news conference at 1 p.m. in West Palm Beach, roughly 24 hours after a Learjet 60 crashed at the entrance of a mobile home park.
据联邦航空管理局称，该飞机从德克萨斯州奥斯汀飞往巴哈马北伊莱瑟拉机场。当局尚未公开公布机上人员身份。
The plane was traveling from Austin to North Eleuthera Airport in the Bahamas, according to the Federal Aviation Administration. Authorities have not publicly identified those aboard.
佛罗里达州州长罗恩·德桑蒂斯（共和党人）在周日的新闻简报会上称这次坠机事件为“灾难性”事故。地面上无人受伤。
Florida Gov. Ron DeSantis (R), during a Sunday news briefing, called the crash a “cataclysmic” accident. No one on the ground was injured.
“看起来就像一枚导弹在坠落，”德桑蒂斯说。“它在路边留下了一个巨大的坑。”当局尚未确定坠机原因。国家运输安全委员会的调查可能需要数月甚至更长时间。
“It looked like a missile going down,” DeSantis said. “It left a big crater on the side of the road.”Authorities have not determined the cause. The NTSB investigation could take months or longer.
据存档的无线电通信记录显示，坠机发生在大约下午12点50分，坠机前不久，一名飞行员报告称有雨、冰和中度湍流，随后发出了求救信号。
Shortly before the crash, which occurred around 12:50 p.m., a pilot reported rain, ice and moderate turbulence and then declared Mayday, according to archived radio communications.
周日，当飞机从西向东穿越佛罗里达半岛时，南佛罗里达州上空分布着零星雷暴。据存档的无线电通信记录显示，大约下午12点36分，一名空中交通管制员批准机组人员“向左或向右偏离”。
Thunderstorms were scattered across South Florida on Sunday as the plane crossed the peninsula from west to east. Around 12:36 p.m., an air traffic controller authorized the crew to “deviate left and right,” according to archived radio communications.
当时，棕榈滩附近正在发展的一个雷暴云顶高度约为33000英尺。在20分钟内，随着强大的风力将空气向上推，该雷暴云顶增长到48300英尺。飞机大约在下午12点47分飞入该雷暴，飞行高度为35000英尺。
At that time, a developing thunderstorm near Palm Beach was about 33,000 feet tall. Within 20 minutes, it grew to 48,300 feet as powerful winds pushed air upward. The plane flew into the storm around 12:47 p.m. at an altitude of 35,000 feet.
虽然在该高度水滴通常会结冰，但快速发展的雷暴可以将液态水滴向上推得如此之快，以至于它们可能在结冰前就撞上飞机，从而可能导致飞机表面迅速积冰。
While water droplets are typically frozen at that altitude, a rapidly growing thunderstorm can push liquid droplets upward so quickly that they can hit an aircraft before freezing, potentially causing ice to build up rapidly.
前联邦航空管理局和国家运输安全委员会事故调查人员杰夫·古泽蒂怀疑，湍流在使飞机失稳方面的作用可能大于结冰。他说，风暴强劲的上升气流和下沉气流可能将飞机击离正常航线，导致快速下降。
Jeff Guzzetti, a former accident investigator at the FAA and the NTSB, suspects turbulence may have played a greater role than icing in destabilizing the plane. He said the storm’s powerful updrafts and downdrafts could have knocked the plane out of its normal flight path, causing the rapid descent.
“在我看来，这具有天气引发的失稳事件的典型特征，”古泽蒂说。
“To me, it has the earmarks of a weather-induced upset event,” Guzzetti said.
棕榈滩县委员乔尔·弗洛雷斯周日表示，约有600名住在活动房屋公园的人正在被疏散到附近的避难所。周一有多少居民仍无法回家，以及他们何时能返回，尚不清楚。
Joel Flores, a Palm Beach County commissioner, said Sunday that about 600 people who live in the mobile home park were being evacuated to nearby shelters. It was not immediately clear how many residents remained displaced Monday or when they could return.
佛罗里达电力与光公司的一位发言人表示，工作人员已准备好为受影响的客户恢复供电，但因调查无法进入该地区。该公用事业提供商表示，无法估计供电何时恢复。尚不清楚有多少客户仍然断电。
A spokesperson for Florida Power and Light said crews were prepared to restore power to affected customers but could not access the area because of the investigation. The utility provider said it had no estimate for when service would be restored. It was not immediately clear how many customers remained without power.