Aviation Digital Data Service (ADDS)

Output produced by METARs form (1321 UTC 14 December 2017)
found at http://aviationweather.gov/adds/metars/
 
KIAD 141127Z 1412/1518 24008KT P6SM BKN050 
     FM141400 29012G22KT P6SM BKN050 
     FM141600 32012G22KT P6SM SCT050 SCT200 
     FM142100 33009KT P6SM BKN200 
     FM150000 35004KT P6SM BKN150 
     FM151400 17005KT P6SM SCT050 BKN130