Aviation Digital Data Service (ADDS)

Output produced by METARs form (0209 UTC 24 July 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KIAD 232339Z 2400/2506 30010G18KT P6SM VCTS BKN040CB BKN080 
     FM240200 30006KT P6SM BKN040 BKN080 
     FM250200 35005KT P6SM SCT040