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Grady, Generally for hourly data, 0045Z to 0144Z is considered 0100Z. Most observations are actually taken slightly before the hour. When creating your file for SFEDIT, use that hourly time bin instead of the time to the minute. Otherwise, if DATTIM is different in your surface file, your will have to plot them using sucessive iterations of SFMAP. Steve Chiswell Unidata User Support On Thu, 14 Feb 2002, Grady Dixon wrote: > Chiz > > I am trying to plot hourly surface maps using sfmap (GEMPAK 5.6.D.1 > Solaris). However, some of my obs were taken on the hour while some > were taken at 7 minutes before the hour. I changed clear=yes to > clear=no and plotted both sets of obs, but is there a way that I can > plot all stations without having the time stamps overwrite each other. > Ideally, I would just like for the time stamp to be for the nearest > hour. > > Thanks > GRADY > > > ********************************* > Grady Dixon > Department of Geography > University of Georgia > http://www.arches.uga.edu/~gdixon > >