Average performance of TAFs, by issuing office July 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 55294 59617 93% 58914 62416 94% 2647 7224 37%
Edmonton 70772 73984 96% 72577 75045 97% 1613 3576 45%
National 126066 133601 94% 131491 137460 96% 4260 10800 39%