The Pressure forecast map for Saturday below shows the fight between two air masses:
|From BBC Weather website|
In the UK, the weather system is drawing cold air down from the Arctic , whilst in the Atlantic, an area of low pressure will bring warmer and wet conditions from the west. The point at which they bump into each other - expected to be over the Midlands and eastern side of the UK this weekend - could see significant snowfall.
This is well explained in a video on the BBC Weather website here
At this stage forecasters cannot be totally certain where the snow will fall. However, there is a possibility that this will occur and may affect us in Wiltshire - so be prepared.
If there is snow this weekend and into Monday - any official announcement about our school being closed will be posted on the Heart website snow pages or announced on Heart FM - so stay tuned.