Originally Posted by
Don Coyote
True, but given that it is reported met visibility it is unlikely to be of value for when you arrive two hours later in the example given by the OP. The only time it would possibly be applicable for planning minima, IAW CAT.OP.MPA.185, is when the reported met visibility is given to you before you depart and you will arrive in one hour or less.
The OP is referring to a forecasted Vis, part of a TAF. This Visibility will be taken into account as we have no further details (TEMPO, BECMG, etc..) so we can assume it is the forecasted general visibility in the period covered by the TAF.
Worst case scenario Your CMV factor is 1.0, You’re above the required RVR of 550m.