Aviation Digital Data Service (ADDS)

Output produced by METARs form (2145 UTC 28 July 2015)
found at http://aviationweather.gov/adds/metars/
 
KDCA 282144Z 2822/2918 12008KT P6SM VCTS BKN040CB 
     FM290000 15005KT P6SM SKC 
     FM290900 VRB03KT P6SM SKC 
     FM291500 18007KT P6SM FEW250 
     FM291600 17008KT P6SM SCT040