UK weather: Met Office warning as dense fog threatens more travel disruption

Dense fog is expected to cause significant travel disturbances once again across several regions in England and eastern Wales. The Met Office has issued a yellow weather warning for fog for the fourth day running, covering a wide area including the Midlands, East Anglia, northern home counties, Yorkshire and the Humber, as well as parts of Cheshire. Additionally, north-eastern Welsh counties such as Powys, Denbighshire, Conwy, Flintshire, and Wrexham fall under the warning. This advisory took effect at 18:00 GMT on Monday and will remain in place until 10:00 GMT on Tuesday.

Travel has already been affected in recent days due to the foggy conditions. For instance, Heathrow Airport saw the cancellation of 40 flights on Monday before visibility improved. The previous weekend was equally problematic, as dense fog on Saturday night disrupted an FA Cup match between Altrincham and Notts County, and contributed to serious multi-vehicle accidents. These included a 30-car pile-up on the M20 in Kent, which resulted in two serious injuries, and a 19-car collision on the A303 in Hampshire. On Tuesday morning, visibility may drop to under 100 meters in some places, potentially leading to further difficulties for commuters and travelers. Although parts of southern England are expected to be breezier, which can reduce fog formation, sheltered areas may still experience dense patches of fog throughout the day before it gradually dissipates.

Foggy conditions are common during this time of year due to longer nights and diminished sunlight. Stable high-pressure systems can cause the air to become stagnant for several days, increasing the likelihood of fog. However, the forecast indicates more variable weather this week. A low-pressure system situated to the southwest of the UK is predicted to push weather fronts northwards across England and Wales. This will bring cloud cover, rain, and brisk easterly winds later on Tuesday, reducing the chances of fog in these areas by Wednesday morning. Northern Ireland and Scotland may still experience fog, especially in the Central Belt and southern glens. By the end of the week, a cold front is expected to bring northerly winds and Arctic air, lowering dewpoints and making widespread fog far less likely, though morning frosts may become common.

Commuters and travelers are advised to prioritize safety amid these conditions. The Met Office recommends checking road and travel updates before departing and using fog lights when visibility becomes severely reduced, particularly if it drops to 50 meters or less. Extra journey time should be allocated, and travel plans adjusted as needed to account for changing conditions. RAC suggests increasing the stopping distance between vehicles, and AA president Edmund King emphasizes the importance of adapting speed rather than simply following the vehicle ahead. As he explains, “One of the biggest mistakes is simply following the rear lights of the car in front. It can give you a false sense of security and means you may be travelling too close to react safely if that vehicle suddenly stops.” Those using public transport or air travel should monitor operator updates, as flights may experience delays due to increased aircraft spacing requirements in foggy conditions