The article summarizes information about the occurrence of strong winds connected with convective storms in the Czech Republic for the last 500 years obtained on the basis of the study of historical documentary sources. Documentary evidence about strong winds is characterized with respect to its advantages and drawbacks. Principles are stated for setting up the database of strong winds and the classification of those cases from the point of view of the type of the phenomenon, extent and character of the damage caused. The chronology of strong winds is presented since AD 1500 with particular respect to the occurrence of tornadoes. For tornadoes their occurrence during the year is analyzed, as well as their dimensions, intensity and the character of the damage caused. All cases of tornadoes, so far recorded in the Czech Republic, are listed and characterized in the appendix. The impacts of strong winds during convective storms and tornadoes are evaluated. The importance of documentary evidence about strong winds from pre-instrumental period is pointed out.