The has issued a covering several major cities in the UK, including Newcastle upon Tyne, Middlesbrough, Leeds, York and Hull, with several other areas affected.
The forecaster warned: "Fog will continue to develop across parts of northeast England, Yorkshire and Humberside through Sunday night. Some dense fog is likely in places with the visibility falling to 50 metres at times. Fog will lift during Monday morning.
"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. Bus and train services, as well as flights and ferry travel may also be affected; check for updates from your travel company and follow their advice."
The weather warning was in place from 10.40pm Sunday until 9am Monday. Here's a full list of the areas affected:
Regions and local authorities affected: North East England
- Darlington
- Durham
- Gateshead
- Hartlepool
- Middlesbrough
- Newcastle upon Tyne
- North Tyneside
- Northumberland
- Redcar and Cleveland
- South Tyneside
- Stockton-on-Tees
- Sunderland
- East Riding of Yorkshire
- Kingston upon Hull
- North Lincolnshire
- North Yorkshire
- South Yorkshire
- West Yorkshire
- York
