If very cold weather is forecast maintain the surface with the tines of the maintenance machine 25mm deeper than usual to ensure that the surface is not too compacted. Compacted surfaces prevent surplus water from draining causing a ‘backlog’ of moisture in the surface, which can then freeze. This will apply to wax coated surfaces as well as dry mixed surfaces.
Carry out this additional maintenance ideally before the cold weather is approaching and keep the top of the surface loose.Check the surface the following morning and grade the surface again to break up the ice crystals and to loosen the top of the surface.
If it snows on the arena ideally allow it to melt before using. If it’s a light dusting then ride carefully and don’t use the your grader as you don’t want to work the snow deeper into the surface. If there is a heavy cover of snow, do not leave it but remove as much as you can carefully with a shovel or JCB with a bucket if you have access to one.
NEVER use an arena leveller or your maintenance equipment to break up snow or ice on the surface. This will create an uneven depth and compaction as well as increasing future freezing. It will also be detrimental to the components in the surface.
Another option is to consider investing in a frost cover which can be rolled over the surface in the evening and then removed in the morning.