2005年8月25日,五级飓风“卡特里娜”在美国佛罗里达州登陆。8月29日破晓时分,再次以234千米/时的速度在美国墨西哥湾沿岸路易斯安那州新奥尔良市东部地区登陆。它横扫墨西哥湾沿岸各州,导致洪灾泛滥。这次飓风袭击给美国南部数州所造成的危害比人们原先的估计要严重得多:大面积的基础设施和民居被摧毁,密西西比州近90%的建筑遭到破坏或严重破坏;死亡人数持续增加;数十万人无家 August 25, 2005, five hurricanes “Katrina” landing in the United States, Florida. On August 29, at dawn again, it landed at 234 km / h on the eastern New Orleans, Louisiana coast of the U.S. Gulf Coast. It swept across the Gulf Coast states, leading to flooding. The damage caused by the hurricane to several states in the south of the United States was far more serious than previously estimated: large-scale infrastructure and dwelling houses were destroyed, and nearly 90% of buildings in Mississippi were damaged or severely damaged; the death toll continued Increase; hundreds of thousands of people are homeless