NCEP analyse
UTC
    Mar
    Thu
    29
    00
    Mar
    Fri
    30
    00
    Mar
    Sat
    31
    00
    Apr
    Sun
    1
    00
    Apr
    Mon
    2
    00
    Apr
    Tue
    3
    00
    Apr
    Wed
    4
    00
    Apr
    Thu
    5
    00