Brian, Can we have more information here? I believe the "low end" of your color scale has not been defined correctly WRT to transparency. Best, Unidata IDV Support > See attached. > > [cid:06E3BD9A-00B5-4FB4-BA9F-49E0F50E038C] > > > > Ticket Details =================== Ticket ID: MNW-838476 Department: Support IDV Priority: High Status: Closed