Aviation Digital Data Service (ADDS)

Output produced by METARs form (1834 UTC 27 April 2015)
found at http://aviationweather.gov/adds/metars/
 
KRDU 271720Z 2718/2818 31010KT P6SM SCT050 
     TEMPO 2718/2722 34012G18KT 
     FM280000 34007KT P6SM SKC