一个风暴系统正向美国移动。据预测，它将成为一场大飓风本周去佛罗里达。
热带风暴伊恩预计将在周日迅速增强，因为它将经过加勒比海温暖的热带水域。随着它向北穿过墨西哥湾，它将加强，成为大西洋季节的第五次飓风。
据目前预测，风暴将于周四中午在佛罗里达州西海岸或佛罗里达州狭长地带登陆，并有可能在接近时增强为4级飓风。尽管飓风的路径和强度还不确定。
国家飓风中心建议古巴、佛罗里达群岛和佛罗里达半岛的居民制定飓风计划，并密切关注最新预报。
佛罗里达州州长罗恩·德桑蒂斯也宣布整个州进入“紧急状态”，风暴条件“预计将构成一场重大灾难”。紧急命令意味着佛罗里达国民警卫队成员将被激活并待命。
专家称，墨西哥湾沿岸、坦帕湾地区特别容易遭受飓风袭击
加勒比群岛将于周一开始受到伊恩的影响
美国宇航局将重新讨论是否将阿耳忒弥斯火箭从发射台上取下
美国国家航空航天局周日表示，该机构尚未决定是否将阿尔特弥斯1号火箭留在发射台上，因为它正在监测热带风暴伊恩向佛罗里达州移动的路径。
由于其火箭再次被推迟，联邦航天局的任务经理将在周一继续讨论下一步措施。
周六，由于天气原因，美国宇航局取消了第三次计划中的阿尔特弥斯一号发射尝试。阿尔特弥斯一号原定于9月27日发射。
工程师将决定火箭是否需要从发射台上滚下来。如果他们不取消，下一个可能的发射日期是10月2日星期日。
热带风暴伊恩预计在接近佛罗里达时会增强为一场大飓风。
由于温度传感器故障，美国宇航局不得不取消8月29日的第一次发射尝试，9月3日的第二次尝试则是由于液态氢泄漏。
如果10月2日的发射没有发生，火箭将被带回肯尼迪航天中心的车辆装配大楼，直到团队决定下一个日期。
伊恩再次加强，预测在周一成为飓风
热带风暴伊恩已经加强，最大持续风速为每小时60英里，预计随着大气条件变得更有利于风暴，整个晚上都会变得更强。
据预测，伊恩将在周一成为飓风，并可能在周二变得更加强烈。
伊恩正以每小时12英里的速度向西北偏西方向移动，其中心位于距离大开曼岛160英里处。
牙买加和开曼群岛预计将在未来24小时内遭遇暴雨、巨浪和可能的洪水。
伊恩身体稍有虚弱，但一夜之间会恢复体力
热带风暴“伊恩”略有减弱，但是预计它在经过加勒比海的温暖水域时不仅会增强，而且会在一夜之间迅速增强。
截至美国东部时间下午5点，风暴系统的最大持续风速为每小时45英里，并以每小时12英里的速度向西北偏西方向移动，中心位于距离大开曼岛约220英里处。
到目前为止，风暴前的干燥空气延缓了增强趋势。但是，随着该系统继续穿过加勒比海西北部并逼近古巴西部，预计其强度将在周一至周二迅速增强。
在接下来的24小时里，外围带将影响牙买加和开曼群岛，带来几轮暴雨，可能会引发洪水和风暴潮。周一晚些时候到周一晚，伊恩将逼近古巴西部，并可能给该地区带来巨大的风力和风暴潮影响。
大开曼岛和古巴西部部分地区的飓风警报已经生效。古巴西部部分地区以及包括基韦斯特在内的下佛罗里达群岛已经发布了热带风暴警报。
截至下午5点，预报路径略微向东移动。总的来说，预测指导的可变性和不确定性仍然很高，从本周中期到周末风暴将在未来24到48小时内继续移动。
加勒比群岛将于周一开始受到伊恩的影响
预报显示，在未来24小时内，牙买加和大开曼岛等加勒比海岛屿将开始受到热带风暴伊恩外围带的影响。这些岛屿将经历暴雨、可能的洪水和风暴潮等情况。
风暴系统将在周一夜间开始迅速加强，然后在周一晚上靠近古巴西部。
截至下午2点，热带风暴的持续风速保持在每小时50英里，并以每小时12英里的速度向西北偏西方向移动，中心距离大开曼岛约265英里。
大开曼岛和古巴西部的飓风警报已经生效，而两个岛屿的其他地区的热带风暴警报和观察已经生效。
作为飓风，伊恩预计将在未来几天在佛罗里达州西海岸或狭长地带登陆，然后稍微减弱。
一旦该系统进入墨西哥湾，伊恩将采取的路线仍有一些不确定性。
风暴中心和最严重的影响可能会朝着佛罗里达半岛的西海岸前进，包括坦帕地区。另一种可能的情况是，风暴向正北方向移动，并可能沿着佛罗里达半岛登陆，对巴拿马城和塔拉哈西等城市产生更直接的影响。
风暴将在周二晚上开始影响佛罗里达群岛和该州的南部地区。
Tropical Storm Ian live updates: System expected to undergo rapid intensification to hurricane
A storm system heading toward the U.S.is forecast to be a major hurricane as it nearsFlorida this week.
Tropical Storm Ian is expected to rapidly intensify on Sunday as it goes over warm tropical waters in the Caribbean Sea. It will then strengthen as it tracks north through the Gulf of Mexico, becoming the fifth hurricane of the Atlantic season.
The storm is currently forecast to make landfall on the west coast of Florida or the Florida Panhandle by midday Thursday, potentially strengthening into a Category 4 hurricane as it approaches. Though there is uncertainty about the hurricane's track and intensity.
The National Hurricane Center has advised residents of Cuba, the Florida Keys and the Florida peninsula to have a hurricane plan in place and to closely follow forecast updates.
Florida Gov. Ron DeSantis has also declared a "state of emergency" for the entire state, with storm conditions "projected to constitute a major disaster." The emergency order means members of the Florida National Guard will be activated and on standby.
NASA to reconvene on whether to take Artemis rocket off launchpad
NASA hasn’t decided whether to leave its Artemis I rocket on the launchpad as it monitors Tropical Storm Ian's path toward Florida, the agency said Sunday.
The federal space agency’s mission managers will continue discussions on Monday about the next steps as its rocket was delayed again.
On Saturday, NASA scrapped its third planned launch attempt of Artemis I because of weather concerns. Artemis I was scheduled to launch on Sept. 27.
Engineers will decide if the rocket needs to roll back off the launch pad. If they do not roll it back, the next possible launch date is Sunday, Oct. 2.
Tropical Storm Ian is forecast to strengthen into a major hurricane as it nears Florida.
NASA had to scrub the first launch attempt on Aug. 29 because of a faulty temperature sensor and the second attempt on Sept. 3 due to a liquid hydrogen leak.
If the Oct. 2 launch doesn’t happen, the rocket will be taken back to the Vehicle Assembly Building at the Kennedy Space Center until the team decides on the next date.
Ian strengthens once again, forecast to become hurricane on Monday
Tropical Storm Ian has strengthened with maximum sustained winds at 60 mph and is expected to get stronger throughout the night as atmospheric conditions become more favorable for the storm.
Ian is forecast to become a hurricane on Monday, becoming even more intense likely into Tuesday.
Ian is moving to the northwest to the Northwest at 12 mph, with the center located 160 miles away from Grand Cayman.
Jamaica and the Cayman Islands are expected to experience heavy rain, a heavy surge and possible flash flooding over the next 24 hours.
Ian weakens slightly but will regain strength overnight
Tropical Storm Ian has weakened slightly, but it is expected to not only strengthen but rapidly intensify overnight as it travels over warm waters in the Caribbean.
As of 5 p.m. ET, the storm system had maximum sustained winds of 45 mph and was moving west-northwest at 12 mph, with the center located about 220 miles away from Grand Cayman.
Dry air ahead of the storm has delayed the strengthening trend so far. But the rapid intensification is expected to occur Monday into Tuesday as the system continues across the northwestern Caribbean and closes in on western Cuba.
Over the next 24 hours, the outer bands will impact Jamaica and the Cayman Islands, bringing rounds of heavy rain, possible flash flooding and storm surge. Later Monday and into Monday night, Ian will be closing in on western Cuba and will likely bring significant wind and storm surge impacts to the region.
A hurricane warning is in effect for Grand Cayman and portions of western Cuba. A tropical storm watch has been issued for portions of western Cuba, as well as the lower Florida Keys, including Key West.
As of 5 p.m., the forecast track was nudged slightly eastward. Overall, the forecast guidance variability and uncertainty will remain high, and the track for where the storm will be from the middle to the end of the week will continue to shift over the next 24 to 48 hours.
Caribbean Islands to start experiencing effects from Ian by Monday
Caribbean islands such as Jamaica and Grand Cayman will start to experience the effects from the outer bands of Tropical Storm Ian within the next 24 hours, forecasts show. The islands will experience conditions such as heavy rain, possible flash flooding and storm surge.
The storm system will begin to rapidly intensify overnight into Monday before it closes in on western Cuba on Monday night.
As of 2 p.m., the sustained winds in the tropical storm remained at 50 mph as it moved west-northwest at 12 mph, the center about 265 miles away from Grand Cayman.
Hurricane warnings are in effect for Grand Cayman and western Cuba, while tropical storm warnings and watches are in effect in other portions of both islands.
As a hurricane, Ian is expected to peak at a Category 4 before weakening slightly as it looks to make landfall on the west coast or panhandle of Florida in the coming days.
There is still some uncertainty to the track Ian will take once the system enters the Gulf of Mexico.
The center of the storm and the worst of the impacts could end up heading toward the western coast of Florida's peninsula, including the Tampa area. The other possible scenario has the storm moving more due north and bringing a possible landfall along the Florida peninsula, impacting cities like Panama City and Tallahassee with more direct effects.
The storm will begin to impact the Florida keys and the southern portions of the state by Tuesday night.
