Overview

• The yellow warning is in force from 3:30am to 9:00am, aligning with the morning commute.
• Areas affected include Greater London, Kent, Essex, Sussex, Surrey, and parts of East Anglia such as Cambridgeshire and Suffolk.
• Visibility may fall to around 50 metres in places, meeting dense fog criteria that can severely disrupt transport.
• Local impacts include the Woolwich Ferry not operating, with a chance of flight delays and knock-on effects for bus and rail services.
• The Met Office expects the fog to lift through mid to late morning, with calmer conditions to follow and overall low impact once it clears.