Drivers are advised to leave extra time to prepare their vehicles, and carry essentials such as warm clothing, food, water, a blanket, a torch and a phone charger in case of delays.
Those heading out on foot are encouraged to use pavements along main roads, which are more likely to have been treated, to reduce the risk of slips and falls on icy surfaces.
Cyclists are also advised to stick to main routes for the same reason.
Households are being reminded to prepare for any short power cuts by keeping torches, spare batteries and a mobile pack ready.
The Met Office has warned that weather warnings can change quickly and recommends people keep up to date with the latest forecasts.
