Last Updated : December 31, 2012
www.ofcm.gov

Federal Meteorological Handbook No.12
United States Meteorological
Codes and Coding Practices

FCM-H12-1998
Log of Changes - (List of changes)  
  • Memorandum - Change No. 1 to the Federal Meteorological Handbook No. 12
    Effective September 1, 2006
 PDF 115KB
  • Memorandum - Change No. 2 to the Federal Meteorological Handbook No. 12
    Effective July 1, 2012
 PDF 102KB
  • Memorandum - Change No. 3 to the Federal Meteorological Handbook No. 12
    Effective January 1, 2013

PDF 110KB
Federal Meteorological Handbook No. 12 (FCM-H12-1998)
**This is the entire handbook with all changes incorporated.
 PDF 405KB