Aviation Digital Data Service (ADDS)

Output produced by METARs form (1425 UTC 23 October 2014)
found at http://aviationweather.gov/adds/metars/
 
KGMU 231122Z 2312/2412 36003KT P6SM SKC 
     FM231800 28004KT P6SM SKC 
     FM240000 00000KT P6SM FEW250