VIII.  Site-Specific Form

Site-Specific Form (Forecast Point)

1   Location  (Rating.Lid)                       Alphanumeric 8 
     NWS location identifier.

2   UHG Duration  (Rvrsta.Uhgdur)                Numeric
     Duration in hours for which the unit hydrograph applies.  Typical values are 1, 3, and 6 hours.



Site-Specific Form (Rating Table)

3   Stage  (Rating.Stage)                        Numeric   
     The stage given in feet at which the associated flow values are given.  The stage values are
     associated with a corresponding flow value, given as described below.  Multiple pairs of stage-flow
     values are given to form a rating table.

4   Flow  (Rating.Discharge)                     Numeric   
     The flow in CFS for the associated stage.



Site-Specific Form (Unitgraph)

5   Time  (Uhg.Timinit)                          Numeric   
     The offset for the particular stage-discharge combination from the 0 hour associated with the start
     of the precipitation event to which this unit hydrograph applies.  This value should be a multiple of
     the unit hydrograph duration (i.e. 3 hour, 6 hour).  For example, for a 6-hour duration, the values
     for successive entries in the unit hydrograph table would be 0, 6, 12, 18, 24, 30, etc.

     The time offset values are given for a corresponding discharge value, as described below.  Multiple
     pairs of stage-discharge values are given to form a unit hydrograph table.

6   Q  (Uhg.Q)                                   Numeric
     The discharge in CFS for the associated time offset in the unit hydrograph.