Aviation Digital Data Service (ADDS)

Output produced by METARs form (1350 UTC 27 May 2015)
found at http://www.aviationweather.gov/adds/metars/
 
KDCA 271127Z 2712/2812 19009KT P6SM SCT021 SCT250 
     FM271400 19012KT P6SM SCT030 SCT080 
     FM272000 21013KT 6SM -SHRA VCTS BKN040CB OVC100 
     FM280000 19007KT P6SM FEW035 BKN140 
     FM280600 VRB04KT P6SM BKN150