The GHRC DAAC has extended the Hurricane and Severe Storm Sentinel (HS3) Global Hawk Advanced Vertical Atmospheric Profiling System (AVAPS) Dropsonde System dataset, with the addition of ASCII data files to complement the existing netCDF data. With the addition of these files, the entire AVAPS dropsonde dataset for HS3 is now available in both netCDF-4, the standard used for all HS3 data at GHRC, as well as the NCAR Earth Observing Laboratory’s “EOL” ASCII file format convention for sounding data, commonly used in the science community.