Hi, I was using the HURDAT package in R, and there are 29 N/A values in Longitude where the data previously held either values of -99 or 0. The prior values seem to be correct as they are on the track of the hurricane compared to other points. It's possible that a few may appear a little bit off, but in general, it seems that the -99 and 0 values may have been mistaken for N/A's.
These are the storms with the N/A's for Longitude:
Issue found via email:
https://github.com/timtrice/HURDAT/blob/8330628bd16b013bb295aa5a58bfc91136e42541/R/hurdat.R#L297