Aviation Digital Data Service (ADDS)

Output produced by METARs form (0815 UTC 20 April 2014)
found at http://aviationweather.gov/adds/metars/
 
KROC 200521Z 2006/2106 VRB03KT P6SM SKC 
     FM201300 12005KT P6SM SKC 
     FM201800 16006KT P6SM SKC 
     FM210500 20008KT P6SM BKN200