For those newer to playing in the snow during tournament, it is not much different. If you are nervous about losing a disc, you can also have a spotter from the back of your card spot. Although I don't mind the special circumstance for this event, I will say it is not normal. All the years I ran events in WI, there was never any mention of ribbons and they play all winter with 2-3 times more snow on average.
I am not criticizing anyone, I just want players to know it is not that rough playing in snow. It will be colder and you might have a few more standstill shots, pay more attention to your shots as a group but play is the same.