Aviation Digital Data Service (ADDS)

Output produced by METARs form (0111 UTC 29 August 2014)
found at http://aviationweather.gov/adds/metars/
 
KIAD 290000Z 2900/3006 35005KT P6SM SKC 
     FM290700 00000KT P6SM FEW250 
     FM291700 19008KT P6SM FEW250