The examination combines the Doppler-created images, 3-D maps and information gathered by measuring instruments on the ground in the path of a storm.
Information gathered by the instruments could help builders design stronger homes in areas where such dangerous storms are common.
Scientists are learning more about which storms develop into tornados by studying them from start to end. Mr. Wurman says that radar information has taught them that a “wind surge” could be what causes a storm to turn into a tornado.
I’m June Simms.
Finally, September 11th is Patriot Day in the United States. It is the day when Americans remember the over 3,000 people killed and the thousands injured during the September 11th, 2001 terrorist attacks against the United States.
And that’s our show for today. Join us tomorrow for another As It Is program from VOA Learning English.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25