Average performance of TAFs, by issuing office January 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 51452 58684 88% 59039 65111 91% 4737 11337 42%
Edmonton 66911 73151 91% 70307 75390 93% 3894 7766 50%
National 118363 131835 90% 129345 140501 92% 8630 19102 45%