Hi Mike, Before going down that path, you may want to see if you can access the data you need from NCDC at: http://www.ncdc.noaa.gov/nexradinv/ I see they have the N1V, N2V, and N3V products available for download. There are many NOAA NOAAport contacts depending upon topic: http://www.nws.noaa.gov/noaaport/html/noaaport.shtml Hopefully NCDC has the products from the location and time you desire, if not we can help with working with the level 2 data to derive the information you need. > Thanks for your answer. > > Do you know the appropriate contact to request support from NOAA on NOAAPort? > > T Jeff Weber Unidata User Support http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: QWF-162996 Department: Support IDD Priority: Normal Status: Open