Aviation Digital Data Service (ADDS)

Output produced by METARs form (0514 UTC 13 August 2013)
found at http://aviationweather.gov/adds/metars/
 
 
KDCA 122327Z 1300/1324 16006KT P6SM SCT090 BKN250 
     FM130600 19006KT P6SM VCTS SCT050CB OVC090 
     FM131200 30004KT P6SM -SHRA OVC050 
     FM131700 26008KT P6SM -SHRA OVC050