Average performance of TAFs, by issuing office February 2012
  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 49583 55548 89% 56068 60704 92% 3535 8257 43%
Edmonton 63526 69425 92% 66078 71259 93% 3231 7689 42%
National 113109 124973 91% 122146 131963 93% 6767 15946 42%