Aviation Digital Data Service (ADDS)

Output produced by METARs form (0814 UTC 20 April 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KSFO 200528Z 2006/2112 26012G17KT P6SM SCT010 
     FM200800 28008KT P6SM FEW015 
     FM202000 30016KT P6SM SKC 
     FM210400 29010KT P6SM SKC