Expert maps
   Precipitation
   Base: Thu 18
   Base: Thu 12
   Base: Thu 06
   Base: Thu 00
    Fri Dec 06 18..24 GM
    Fri Dec 06 00..06 GM
    Fri Dec 06 06..12 GM
    Fri Dec 06 12..18 GM
    Sat Dec 07 18..24 GM
    Sat Dec 07 00..06 GM
    Sat Dec 07 06..12 GM
    Sat Dec 07 12..18 GM
    Sun Dec 08 18..24 GM
    Sun Dec 08 00..06 GM
    Sun Dec 08 06..12 GM
    Sun Dec 08 12..18 GM
    Mon Dec 09 18..24 GM
    Mon Dec 09 00..06 GM
    Mon Dec 09 06..12 GM
    Mon Dec 09 12..18 GM
    Tue Dec 10 18..24 GM
    Tue Dec 10 00..06 GM
    Tue Dec 10 06..12 GM
    Tue Dec 10 12..18 GM
    Wed Dec 11 18..24 GM
    Wed Dec 11 00..06 GM
    Loop
    
   Base Time:

   Day:
    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
   Month:
    January February March April May June July August September October November December
   Year:
    1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013