Average performance of TAFs, by issuing office Jun 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 50578 55051 92% 54943 58569 94% 2543 7720 33%
Edmonton 65155 69960 93% 67520 71537 94% 2480 6202 40%
National 115732 125011 93% 122463 130105 94% 5023 13922 36%