What is a snow day?
Category: File – :DCA Blizzard 02 2010 9127.JPG|right|thumb|400px|When cars are covered and roads are impassible, closings and cancellations are likely to occur A weather-related cancellation or delay is when an institution, operation, or event is closed, canceled, or delayed as a result of inclement weather conditions. Certain institutions, such as schools, are likely to close when bad weather, such as snow, flooding, tropical cyclones or extreme heat or cold impairs travel conditions, causes power outages, or otherwise impedes public safety or makes opening the facility impossible or more difficult. Depending upon the local climate, the chances of a school or school system closing may vary. While some regions may close or delay schools when there is any question of safety, others located in areas where bad weather is a regular occurrence may remain open, as local people may be accustomed to travelling under such conditions. Many countries and smaller jurisdictions have mandates for a