Biz jet wise for the last 4 years we have always lost 10 days between December and April and only a couple of them for SNOCLO, but the mil / skyguide forecasters give us at least 24 hrs notice of suspect weather, so as long as the GOM has good planning and SOP's for that eventuality then its a bit of non event to be honest and I know Buchard the local bus operator is already contracted for the Divs plus transfers to resorts...