I have been tasked to make fcst meteograms..and the problem I am running into is that GDTSER will not produce output if any points are missing during the forecast period. I will be doing these through scripts so goping back and redoing it with a different time period is not an option. Is there anyway around this? I had previously thought that GDTHGT does the same thing, but I am looking at aplot here where it just skipped the missing time, but gdtser will not produce output(Error 10) because of missing data from that time. Robert Mullenax