Aviation Digital Data Service (ADDS)

Output produced by METARs form (0013 UTC 18 April 2014)
found at http://aviationweather.gov/adds/metars/
 
KRWI 172324Z 1800/1824 03006KT P6SM BKN250 
     TEMPO 1809/1813 SCT008 
     FM181800 06009KT P6SM BKN050 OVC150 AMD NOT SKED