Aviation Digital Data Service (ADDS)

Output produced by METARs form (1532 UTC 17 September 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KBOS 171508Z 1715/1818 10005KT P6SM FEW035 
     FM172100 11008KT P6SM FEW250 
     FM172300 16007KT P6SM FEW250 
     FM180300 22005KT P6SM FEW250 
     FM181300 29005KT P6SM SKC