I posted this information in a new thread, but figured I better post it here too in case any one coes here looking for help.
When V2 of WeatherCat came out, I noticed that my wind data has been reporting incorrectly. With the option to report Snow added in this version, the format of the WCTtags file changed, everything after Rain in the STMONTHLY section was shifted over one column to make room for the Snow data. If you have been using my script to create the NOAA files, you need to replace it with this updated one. Here is the new script.
If, like me, you didn't notice this change till after the end of last month, you need to recreate Septembers files from your database using the files in the first post of this thread.