Average performance of TAFs, by issuing office January 2013
  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 50772 57202 89% 56970 62444 91% 4232 10901 39%
Edmonton 65034 73430 89% 69138 76208 91% 4491 10072 45%
National 115806 130632 89% 126108 138652 91% 8723 20973 42%