TTYs begone, welcome TAF3's by Admin User - Monday, 5 October 2020, 3:28 PM Number of replies: 0 On November the fifth, 2020, Air Services and the BoM will cease issuing TTY forecasts, which were three hourly forecasts.They're being replaced with a TAF3, which is a three-hourly forecast(!)The BoM explains here. Permalink
