Aviation Digital Data Service (ADDS)

Output produced by METARs form (1805 UTC 12 December 2017)
found at http://aviationweather.gov/adds/metars/
 
KOAJ 121720Z 1218/1318 27011G18KT P6SM SCT200 
     FM122300 29010G18KT P6SM SCT050 
     FM130300 31011G23KT P6SM SKC AMD LTD TO CLD VIS AND WIND