Fous Decoder

    The general format:
    ------------------

    FOXXII KWBC DDTTTT
    TTPTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    ----------------------------------
    NNN// R1R2R3 VVVLI PSDDFF HHT1T3T5
    06PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    12PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    18PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    24PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    30PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    36PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    42PTT R1R2R3 VVVLI PSDDFF HHT1T3T5
    48PTT R1R2R3 VVVLI PSDDFF HHT1T3T4


    CODE    EXPLANATION
    =====   ================
    06, etc Forecast valid time.  (Add this number to forecast run time).
    XX      Region identifier.
    II      Station group number.
    DD      Day of the month forecast was issued.
    TTTT    Greenwich time of forecast cycle on which the data is based.
    NNN     Forecast station three letter identifier.
    PTT     6 hour accumulated precipitation in hundredths of inches.
    R1      Mean relative humidity of the lowest model layer (lowest 35
            mb), in percent.
    R2      Mean relative humidity of model layers 2 through 9 (up to 500
            mb), in percent.
    R3      Mean relative humidity of model layers 10 through 13 (500 to
            200mb), in percent.
    VVV     Vertical velocity at 700mb, in tenths of a microbar per
            second, weighted average of three hourly values at forecast
            time, one hour before, and one hour after (double weighted
            at forecast time).  Minus sign represents downward motion.
    LI      Lifted index in degrees Celsius.  Negative values are designated
            by subtracting from 100; e.g. -4= 96.  Taken from the lowest
            (most unstable) of four possible values.  The values derived
            from lifting parcels from the four lowest model layers up 
            to 500 mb.
    PS      Sea level pressure calculated from lowest sigma level (based on
            the contour base map).
    DD      Direction in tens of degrees of the mean wind in the lowest model
            layer (35 mb).
    FF      Wind speed in knots of the lowest model layer (lowest 35 mb).
    HH      1000-500 mb thickness in decameters with the first digit omitted.
    T1      Temperature in model layer 1 (lowest 35 mb) in degrees Celsius.
    T3      Temperature in model layer 3 (approximately 900 mb).
    T5      Temperature in model layer 5 (approximately 800 mb).