Patrick, This is the bottom (lowest) freezing level of a lifted parcel. It is also displayed as one of the thermodynamic variables in the gui. Steve Chiswell Unidata User Support On Thu, 2004-06-17 at 14:41, Patrick S. Market wrote: > Steve: > > Can you tell me exactly what is the thermodynamic parameter 'BFZL' > in the postscript print out from NSHARP? > > Thanks, > Pat