The February 2011 Canterbury earthquake was a dramatic reminder of the need for schools to have emergency management plans in place. A number of other disaster and hazard events have historically caused New Zealand schools to close temporarily, and often within a short time frame. At such times principals must act decisively and communicate clearly with their communities in complex and difficult circumstances, carrying risk for student well-being. Here we present two hazard-specific New Zealand case studies, pandemic (H1N1) and adverse weather (snowstorm) -- both precipitating instances of temporary school closure. Lessons taken from the case studies offer an opportunity for management staff to reflect on how to best plan for and manage environmental hazards precipitating temporary school closure in order to mitigate immediate and long-term risk to pupils and the wider school community. (Contains 14 notes.)