London Weather: Met Office issues a yellow weather warning for fog - what to expect and when it’s due to end

The Met Office has issued a yellow weather warning for fog in London this morning, as fog descended on the capital from 4:00am this morning (December 1). The warning remains in effect during peak traffic times, ending at 11am this morning.

In the Met Office summary regarding the yellow weather warning, they wrote that the inclusion of London is due to the expansion of the fog from the eastern England covering more of the southeast and East Anglia. The update to include London as part of the warning was confirmed at 3:48am this morning, while most people were either still asleep or just getting up for their commute.

The patches of fog, which cover the majority of central and north-west London, is set to cause difficult driving conditions this morning with some travel disruption expected. As of 7am this morning, there is already congestion between the M4 Heston Services and J2 of the A4 Brentford according to the AA’s Roadwatch with more congestion likely to follow.

The yellow weather warning has yet to affect airports in London though, with London Heathrow’s departure board indicating no delays due to the fog this morning so far. Transport for London is also reporting good service on all of their lines as of 7:02am, though for updates throughout the morning, the Transport for London journey planner will be updated regularly with any public transport disruption.

Official guidance from the Met Office recommends that drivers look for an alternative form of transport due to the expectation of traffic congestion in the city. But if driving if necessary, they advice that motorists should maintain a slow speed with dipped headlights (full-beam headlights would cause a “white wall” effect), to use fog lights but only when visibility is minimal and to not hang on tail lights of cars in front of yours to avoid a hit in rear incident on the road.