Maybe a contraction. Meteo also uses wz. I could just never figure out why. http://www.srh.weather.gov/shv/NWS_contractions.htm http://www.faa.gov/atpubs/CNT/2-1-W.htm http://www.flightsimaviation.com/_glossaries.html?s=meteo http://wx.com/ I like and use your script. Thanks for the effort you put i...