Cold weather is now affecting most of the UK and there are strong signals this could last well into February bringing a range of winter hazards including widespread frosts, ice and snow, says the Met Office.
The snow is likely to be on higher ground and more likely in the north and west of the UK.
However, West and East Sussex will see plenty of frosts and some sleet and heavy showers.
Chief Meteorologist Andy Page said; “On Monday and early Tuesday, a band of heavier rain, hill snow and strong winds will move quickly south across the UK, followed by wintry showers for the middle of the week. Some of the showers will be heavy bringing a mixture of rain, hail, sleet and snow, most frequently across parts of the north and west.”
The Met Office adds: “There are then strong signals for a change to north-easterly winds towards the end of next week. As we go through the rest of the month and into February the longer-range outlook indicates it will remain cold and possibly very cold for a time.
“This will bring potentially widespread overnight frosts, which could be locally severe in any longer clear spells. With cold air across the UK there is a greater risk of snow at lower levels at times. However, some milder and wetter interludes may intersperse the generally cold conditions, these are most likely in the south.
Public Health England (PHE), following advice from the Met Office on the cold weather, has issued several cold weather alerts.
Dr Emer O’Connell of PHE said: “Experience shows us that every winter thousands of people are seriously affected and even die from illnesses linked to the cold. Protecting yourself from the cold may seem like common sense but many people do not manage to keep themselves warm.
“If you know someone at risk, someone over 65, anyone with dementia or a heart and lung condition, or a young child, check up on them and see if there’s anything you can do to help. All of us should be heating our homes to at least 18degC, keeping up to date with weather forecasts and planning our days around them - simple steps can really help protect against the cold.”