Detailed text transcripts for TV channel - CNN - 20110324:10:50:00
About visibility? >> rain-x on the visor, that's about it. >> reporter: look at the huge tempt change between the ambient, the air temperature and the track temperature. >> this is the gun they use to measure the track temperature, this asphalt, 82 degrees. >> reporter: track side isn't always what's happening on the course. indy legend al unser jr. shows me what to look for on the track. >> we had a little bit of rain this morning so you'll see a little bit of wet spots' we go through the track here. we call them weepers, when the sun comes out, then it starts drawing the water back up out of...
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