Average performance of TAFs, by issuing office August 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 55762 60324 92% 59619 63294 94% 2831 6915 41%
Edmonton 68979 73791 93% 71514 75582 95% 2179 5376 41%
National 124741 134115 93% 131133 138876 94% 5010 12291 41%