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5月22日,美国又一次遭遇超级龙卷风袭击,其中受灾最重的密苏里州乔普林市,已确认身份的死者有141人。而在不到一个月前的4月27日,美国南部7个州已经遭到龙卷风的重创,造成至少350人死亡,数千人受伤,为数十年来所罕见。截至本刊发稿时止,今年的龙卷风已造成500多名美国人死亡,数千人受伤。作为世界头号强国,美国拥有全球第一的科技实力和经济实力,可在与龙卷风的“战斗”中,却显得办法不多。那么,为什么在美国龙卷风频发?龙卷风为何很难预报呢?
On May 22, the United States was once again hit by a super tornado, of which Joplin, Missouri, the hardest hit, has identified 141 confirmed dead. Less than a month ago, on April 27, seven states in the south of the United States have been hit hard by tornadoes, killing at least 350 and wounding thousands, a rare exception for decades. As of this issue, the tornado of this year has caused the death of more than 500 Americans and injured thousands of others. As the world’s number one powerhouse, the United States has the world’s number one scientific and technological strength and economic strength, but it does not seem to have many ways to fight the tornadoes. So, why are frequent tornadoes in the United States? Tornado why it is difficult to predict it?