Despite a recent cold spell that brought temperatures below the usual average in the UK, winter is not yet firmly established. Weather forecasts now indicate a warm surge from the Iberian jet stream that is poised to sweep across Britain.
According to WXCharts, some parts of southern England could see temperatures rise to approximately 17C as early as 6am on November 1. Locations like London, Surrey, Buckinghamshire, and Hampshire are expected to experience highs around 16C, with the Isle of Wight potentially reaching 17C.
Other regions such as Kent, Wiltshire, Essex, Suffolk, Northamptonshire, Cambridgeshire, and Lincolnshire may also witness maximum temperatures of about 15C.
The jet stream, a fast-moving high-altitude air current, is forecasted to be particularly active by 9am on November 1, sweeping through Europe, including France, Spain, and Portugal.
Although the jet stream is a natural occurrence unrelated to climate change, experts note that the warming planet is intensifying and increasing the frequency of Iberian jet streams, leading to extreme weather events like heatwaves and wildfires across Europe.
The Met Office’s extended forecast for November 1 to November 10 indicates a likelihood of above-average temperatures, especially in the initial days. Additionally, fewer overnight frosts or fogs than usual are expected during this period.
Despite the warmer temperatures, the start of November is anticipated to bring changeable and occasionally unsettled weather, with low-pressure systems dominating much of the UK. Showers or prolonged periods of rain are expected, particularly in western areas, interspersed with intermittent drier and clearer intervals, more common in the east.
The UK’s highest recorded November temperature was in 2015, when Trawsgoed, Wales, experienced scorching 22.3C, a record tied to the jet stream. The previous record of 21.7C in Prestatyn, Wales, dated back to 1946.