Aviation Digital Data Service (ADDS)

Output produced by METARs form (1638 UTC 18 April 2014)
found at http://aviationweather.gov/adds/metars/
 
KJST 181359Z 1814/1912 18006KT P6SM SKC 
     FM181500 19009KT P6SM SCT050 BKN150 
     FM181900 22006KT P6SM BKN050 
     FM182300 28006KT P6SM BKN040