In the UK there are two legal definitions of insolvency. The first is where an individual or...
If staff cannot make it to work because they need to look after their children when schools are closed because of snow days, it can have a knock on effect on the running of your own school, college or university.
There is no obligation to pay those members of staff if they have not carried out any work that day (unless there is a contractual provision stating otherwise). Employees do, however, have the right to take unpaid leave to look after a dependent in these circumstances.
Do also consider the more practical implications of a policy to not pay staff – where they are unable to attend work through no fault of their own, staff morale can suffer.