On Thursday, the WC in Bakuriani, Georgia, was to begin with qualifiers for Swedish medalists Sandra Näslund and David Mobärg, among others.
But the qualifier is canceled due to too much snow and the hope is to complete the qualifier on Friday before the finals.
Otherwise, Sunday is a reserve day.
The big favorite Sandra Näslund, who has 37 World Cup victories, Olympic and World Cup gold in her bag, completed 1.5 training runs yesterday before she stopped training because of the snow.
- I like the course, but when visibility is poor, you can't get over the jumps and it becomes dangerous, says Sandra Näslund to SVT Sport.
The finals for men and women are decided on Friday, while the team competition takes place on Saturday.