Aviation Digital Data Service (ADDS)

Output produced by METARs form (1651 UTC 27 August 2016)
found at http://www.aviationweather.gov/adds/metars/
 
KIAD 271507Z 2715/2818 09009KT P6SM FEW220 
     FM271600 09006KT P6SM SKC 
     FM280900 00000KT P6SM BKN015