Page 10 - First Win News Today

About visibility? >> rain-x on the visor, thats 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 isnt always whats 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 youll see a little bit of wet spots we go through the track here...