Aviation Digital Data Service (ADDS)

Output produced by METARs form (0513 UTC 13 August 2013)
found at http://aviationweather.gov/adds/metars/
 
 
KIAD 130207Z 1302/1406 18004KT P6SM SCT050 BKN250 
     FM130500 21005KT P6SM VCTS OVC050CB 
     FM131200 29004KT P6SM -SHRA OVC050 
     FM131500 26008KT P6SM -SHRA OVC050 
     FM132100 27009KT P6SM BKN050 
     FM140000 32005KT P6SM SCT050