Average performance of TAFs, by issuing office June 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 50460 55127 92% 55847 59657 94% 2908 7720 38%
Edmonton 68463 72150 95% 70616 73528 96% 1610 3346 48%
National 118923 127277 93% 126464 133184 95% 4517 11065 41%