Aviation Digital Data Service (ADDS)

Output produced by METARs form (0033 UTC 01 March 2015)
found at http://aviationweather.gov/adds/metars/
 
KORD 282326Z 0100/0206 15006KT P6SM OVC150 
     FM010300 16006KT 2SM -SN BR OVC015 
     FM010700 20005KT P6SM OVC015 
     FM011600 25008KT P6SM OVC030 
     FM020200 27008KT P6SM SKC