NCEP analyse
UTC
    Apr
    Tue
    30
    00
    May
    Wed
    1
    00
    May
    Thu
    2
    00
    May
    Fri
    3
    00
    May
    Sat
    4
    00
    May
    Sun
    5
    00
    May
    Mon
    6
    00
    May
    Tue
    7
    00