UK Snow Bomb Threat: Six Days of Snow Forecast with 80% Chance
Six-day 'snow bomb' forecast for UK with 80% chance

The UK is bracing for a prolonged period of wintry weather, with forecast maps now indicating a high probability of a 'snow bomb' hitting parts of the country over six separate days. Data from WX Charts, which utilises Met Desk information, shows a significant chance of disruptive snowfall, particularly in the south of England.

High Probability of Prolonged Snowfall

Weather maps have turned a concerning dark red, highlighting an 80 per cent chance of snow and flurries sweeping across Greater London and southern England around 6am on the key dates. The data suggests this wintry hazard could strike on multiple days, creating a sustained period of potential disruption.

The core of the cold snap is expected between December 27 and December 30, with counties such as Gloucestershire and the Cotswolds also identified as being at risk. The advanced GFS modelling system used by WX Charts indicates that parts of England will shiver in temperatures as low as -2C as the mercury plunges.

Widespread Freezing Temperatures Forecast

The chill will not be confined to one region. Separate forecasts predict sub-zero temperatures across the nation:

  • Wales could see temperatures drop to around -3C.
  • Somerset, Hampshire, Greater London, and Suffolk may all experience lows of approximately -1C.

Adding to the concerns, another WX Charts map predicts further snowfall on New Year's Day. If these forecasts verify, it would mean flurries could fall on six separate dates, justifying the 'snow bomb' terminology used by some forecasters.

Immediate Outlook and Christmas Forecast

The impending cold spell follows a more mixed immediate forecast. The BBC Weather forecast for Friday, December 20, stated the day would be "dry and bright for most" before rain moved into the west and south-west later.

The outlook for Monday to Wednesday (December 22-24) suggests a gradual change. Monday is expected to be dry for most with rain in the west, while Tuesday may see variable cloud and a few showers. Christmas Eve is forecast to be dry but overcast and windy, especially along the south coast, serving as a precursor to the colder snap expected just after the festive period.

Residents across the UK, particularly in the highlighted southern regions, are advised to monitor the latest forecasts closely as the situation develops and to prepare for potential travel disruption and icy conditions from December 27 onwards.