Average performance of TAFs, by issuing office March 2013
  VFR Category Above IFR Alternate Category Below IFR Alternate Category
EC Weather Centre Location Correct Forecasts (hours) Total Forecasts (hours) VFR Reliability Index Correct Forecasts (hours) Total Forecasts (hours) Alternate Reliability Index False Alarms (hours) Total Forecasts (hours) Below Alternate False Alarm Ratio
Montreal 49266 54750 90% 55134 59592 93% 3864 9903 39%
Edmonton 65470 72046 91% 69188 74613 93% 3568 7890 45%
National 114735 126796 90% 124322 134205 93% 7432 17793 42%