According to the BBC, today is the anniversary of the first broadcast of an in-vision television forecaster, George Cowling, who stood in front of a weather map for the first time. This was even before the first teleprompter was used. He was employed by the U. K. Meteorological Office and was a professional meteorologist. You can read more about how they drew the maps using charcoal pencils at

Working on data for a weather chart, c. 1922. INTERNET ARCHIVE/PUBLIC DOMAIN