Have your wife call....perhaps have her mention something like your family was very much looking forward to the skiing vacation...and have her mention something along the lines of BUT the weather just doesn't look like it will allow for great skiing. ..then have her ask if it is possible to re-book for 2024..
Another possibility is disputing the charge with the credit card company...do that only after a few attempts to cancel the ski trip.
and keep in mind that being polite and nice goes a long way towards getting the desired result....One thing I always do when trying to resolve an issue is to ask the person how they are doing. And I always refer to the person by their name...