Aviation Digital Data Service (ADDS)

Output produced by METARs form (0011 UTC 05 March 2015)
found at http://aviationweather.gov/adds/metars/
 
KPHX 042320Z 0500/0524 28006KT P6SM SKC 
     FM050300 25004KT P6SM SKC 
     FM050600 08004KT P6SM SKC 
     FM051600 08008KT P6SM SKC