Aviation Digital Data Service (ADDS)

Output produced by METARs form (1801 UTC 21 August 2014)
found at http://www.aviationweather.gov/adds/metars/
 
KDFW 211724Z 2118/2224 18016KT P6SM SCT050 
     FM221400 19010KT P6SM SCT017 
     FM221700 19015KT P6SM SCT040