I remember a couple of months ago in Keflavic (Iceland) the ATIS was 090/34g44 rwy11rvr 300m OVC 200' together with heavy snow, severe icing and moderate turbulence.
Another aspect not discussed so far is that the 737 autlands maintaining full crab until touchdown. I beleive the main wheels have a few degrees of play to absorb the lateral force. Whatever the visibility a stronger crosswind will put a much heavier strain on the landing gear, this might not show up right away but it may lead to a failure later on (in somebody elses watch...)