Aviation Digital Data Service (ADDS)

Output produced by METARs form (0415 UTC 31 August 2014)
found at http://aviationweather.gov/adds/metars/
 
KPHX 310307Z 3103/3124 28005KT P6SM FEW250 
     FM311000 11006KT P6SM FEW250 
     FM311700 18007KT P6SM FEW250 
     FM312100 26010KT P6SM FEW250