British Gas has advised people to prepare for heavy snowfall as the UK polar vortex snow weather forecast has sharpened around fears of a polar vortex breakdown this winter. The advice centres on London and the UK, where very cold, windy and snowy conditions could follow if the atmosphere shifts.
British Gas said households should keep at least three days’ worth of food and essentials in an easy-to-reach part of the home. It also told people to pack medicines, drinking water, non-perishable food and snacks, and extra blankets before the worst weather arrives.
NOAA and El Niño
A research paper published by the NOAA Chemical Sciences Laboratory found that El Niño tends to promote the breakdown of the polar vortex, especially in late winter. The polar vortex is a band of strong westerly winds around the North Pole that traps bitterly cold air near the Arctic.
When that system weakens or becomes disrupted, it can become wavy and allow cold air to spill southward into North America and Europe. That is why the current El Niño has drawn attention: the source says it is unprecedented in strength at present, and various seasonal modelling centres predict further strengthening over the next couple of months.
London and the UK
The source links the threat to an unprecedented Godzilla El Niño event predicted to strike the capital through the winter months after the record dry and hot summer. Experts have warned the incoming El Niño could be one of the worst on record, which is why the weather risk has moved from abstract forecasting to household preparation.
British Gas also advised people to improve home insulation, protect pipes against freezing, and check a car’s brakes, heater, tyres and windscreen wipers. It said drivers should keep a fuel tank half full during snowy conditions if possible.
The Met
The Met said a polar vortex breakdown could happen, though it is not certain. British Gas also urged people to check in on elderly or vulnerable relatives and neighbours to make sure they have everything they need to get through a cold snap.
The immediate step for readers is simple: store the essentials now and make sure vulnerable people nearby are prepared before severe cold becomes harder to manage.
