Average performance of TAFs, by issuing office October 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 49266 55280 89% 55598 60639 92% 3980 10531 38%
Edmonton 63548 72769 87% 69894 77401 90% 5014 10848 46%
National 112814 128050 88% 125492 138040 91% 8993 21379 42%