Average performance of TAFs, by issuing office December 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 48325 55803 87% 57426 63231 91% 4815 12338 39%
Edmonton 65132 73647 88% 70423 77476 91% 4900 10492 47%
National 113457 129449 88% 127849 140707 91% 9715 22831 43%