ABSTRACT
In this study, we investigate the usability and credibility of Terminal Aerodrome Forecast (TAF) report issued by Czech meteorological service providers via analysis of the frequency of corrected and amended reports. In order to address this, a software if developed for a formal checking of TAF reports in the next step. The results of this investigation as well as the problems that were encountered during the evolution of the checking procedure are discussed in this paper. In particular, ambiguities and differences between Annex 3 to the Convention on International Civil Aviation Meteorological Service for International Air Navigation and its Czech version L3 are discussed in this paper. The developed checking procedure will be included in Visual Weather to help reduce formal errors.
