If you're that concerned about having people "in the office", you may be out of luck. Some folks (myself included), will not risk their wellbeing by driving in hazardous conditions (my employers are always told that I refuse to come into, or remain within, the office if there is an ice storm that will coat the roads with ice). Providing key players with the ability to work remotely may be key to providing needed staffing during adverse weather (or health) conditions.