Detailed text transcripts for TV channel - FOXNEWS - 20120325:21:10:00
>> reporter: current radar uses horizontal beams to sweep storm clouds. dual polar radar sweeps with horizontal and vertital themes, sending enhanced images. >> absent of spot spotter reports from the ground there that site, especially at night or in rural areas, to be able to see that possible debris ball or signature from a tornado on the ground gives forecasters increased confidence. >> reporter: confidence to trigger alerts sooner with warning information that is more direct. >> so instead of saying, severe thunderstorm capable of producing a tornado, we can say a tornado is on the ground,...
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