When do schools have to close due to snow?

A second severe weather warning for “persistent, heavy” snow has been issued as the UK recorded the coldest March night for 13 years.

The Met Office warned of significant disruption to transport, power lines and phone network coverage, with the amber alert in place until 9am Friday covering large parts of Wales and the West Midlands. Flood alerts are also in place across the southern coast of England and North Wales.

It follows earlier alerts of blizzard conditions across central and northern England, with warnings that parts of the UK could see up to 40cm of snow.

Wednesday marked the coldest March night since 2010, as temperatures in Altnaharra in the Scottish Highlands dropped to minus 16C overnight.

Snow forced the closure of schools in parts of Devon, East and West Sussex, Hampshire, Somerset and Wiltshire on Wednesday.

On snowy days, primary and secondary schools are advised by the government to make every effort to stay open.

But, occasionally, schools may be forced to close or operate at a reduced level, for example suspending individual classes, as a result of the weather.

At what point would the wintry weather lead schools to close their doors? Here are the key questions and answers:

According to the Department for Education, it is at the discretion of individual local authorities to decide whether closure is necessary based on their circumstances.

Usually, schools will have tried and tested policies in place to help them navigate adverse weather conditions.

Schools will have their own approaches for contacting parents. In many circumstances, they have their own apps and/or messaging services.

Headteachers will try to give parents as much notice as possible but sometimes decisions will be made quite late as circumstances change.

The government says local decision-making should be in large part based on common sense.

But there is a wide range of things that schools will consider, including staffing levels (if transport issues prevent teachers from getting to work, for example), safety conditions around the school, temperatures in school buildings and any heating system failures.

According to the Education (School Premises) Regulations Act (1999), all school buildings must have a heating system to warm the rooms to the appropriate temperature.

If the temperature outside the school is -1C or below, the building’s heating system should be able to reach the following temperatures at a height of 0.5m above floor level.