what is controlling, RVR or Visibility?

[artflyer]

While enroute to Frobisher Bay CYFB the other week the weather was reported as follows: 1SM R35/1200V3500FT/D -SN VV010 RMK SN8

I read that as, 1 statute mile visibility, Runway 35 RVR 1200 FEET VARIABLE TO 3500 FEET, (/D?), vertical visibility 1,000 feet (SN8?)

If I remember correctly, the RVR were below minimums but the visibility was adquate. The Jepps state that the RVR will be automatically be reported when the visibility goes below 2 statute miles.

I erred on the cautious side and said the airport was below minimums but I cannot find the regulation that would confirm that. FAR 91.175 only refers to "flight visibility".

Anyone run into this lately?

Thanks in advance!