Many years ago, my first commercial job was flying night frieght in a Trislander. This A/C's real x-wind limits were not too high. We always flew the same route between two airfields which each had only one runway. I always carried a list of suitable airfields, open at night with their runway directions listed so that in the event of an iffy x-wind developing I could easily select a suitable diversion. But then the old Trislander was so slow you had plenty of time to plan!
P.P.