A suitable aerodrome is an adequate aerodrome where, at the anticipated time of use, weather reports, or forecasts, or any combination thereof, indicate that the weather conditions are very likely to be at or above the normal operating minima at the time of the intended operation, using the criteria set out in this Appendix. Where a condition is forecast as ‘Prob.’, provided the probability per cent factor is less than 40 per cent, then that condition can be ignored for planning minima purposes. ‘Tempo.’, ‘Inter.’ and ‘Gradu.’ conditions are normally qualified by a time band and must be considered in determining the suitability of an aerodrome with respect to planning minima. Where a time band is omitted then the conditions need not be considered with respect to planning minima. The commander is expected however to exercise good judgement in assessing the overall weather conditions when making a decision to exclude ‘Tempo.’, ‘Inter.’, ‘Gradu.’ and ‘Prob