Average performance of TAFs, by issuing office November 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 49461 55034 90% 54751 59320 92% 3575 8790 41%
Edmonton 61840 70845 87% 68453 75934 90% 5518 12382 45%
National 111301 125879 88% 123204 135255 91% 9092 21172 43%