The Met Office has issued a yellow weather warning for severe fog, which could lead to flight cancellations across large parts of England and Wales.
The warning comes into force at 6pm today and will last until 11am on Monday, covering a total of 85 areas. Visibility could drop to 50 metres or less in some locations, the national weather agency has said.
Potential travel disruption
There is a risk of flights being delayed or cancelled, while bus and train services may also be impacted by the fog.
The Met Office advised: "Give yourself the best chance of avoiding delays by checking road conditions if driving, leaving extra journey time, or amending plans if necessary. Make sure you know how to switch on your fog lights, and check they are working before setting off on your journey."
Areas covered by the warning
The warning affects regions including the East Midlands, East of England, London and South East England, North West England, South West England, Wales, West Midlands, and Yorkshire and Humber.
Specific areas include Derby, Nottingham, Leicester, Lincolnshire, Northamptonshire, Bedford, Cambridge, Essex, Hertfordshire, Norfolk, Suffolk, Greater London, Kent, Hampshire, Surrey, Sussex, Cheshire, Merseyside, Greater Manchester, Bristol, Dorset, Gloucestershire, Somerset, Wiltshire, Cardiff, Swansea, Newport, Wrexham, Shropshire, Staffordshire, Warwickshire, Worcestershire, and all counties in Yorkshire.
The warning is in effect for 17 hours, from 6pm today until 11am on Monday.
