Aviation Digital Data Service (ADDS)

Output produced by METARs form (1219 UTC 23 September 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KSFO 231120Z 2312/2418 30006KT P6SM FEW010 BKN015 
     FM231700 26005KT P6SM FEW015 
     FM232300 27015KT P6SM FEW015 
     FM240300 27010KT P6SM BKN200 
     FM240600 25006KT P6SM OVC015