Aviation Digital Data Service (ADDS)

Output produced by METARs form (0359 UTC 17 August 2017)
found at http://www.aviationweather.gov/adds/metars/
 
KIAD 162343Z 1700/1806 12004KT P6SM BKN040 
     FM170800 VRB03KT 5SM BR BKN025 
     FM171200 VRB03KT P6SM SCT035 BKN100 
     FM171700 18006KT P6SM SCT020 BKN080