Aviation Digital Data Service (ADDS)

Output produced by METARs form (1137 UTC 21 April 2015)
found at http://aviationweather.gov/adds/metars/
 
KSLK 211120Z 2112/2212 24005KT P6SM -SHRA SCT006 OVC012 
     TEMPO 2112/2115 5SM -SHRA BR OVC006 
     FM211500 24007KT 5SM BR OVC025 
     FM211800 24010G16KT P6SM BKN035 
     FM212000 23011G22KT P6SM SCT100 
     FM212300 22005KT P6SM FEW200