UK Braces for Potentially Longest Heatwave of the Summer as Temperatures Soar
The United Kingdom is on alert as the nation prepares for its third heatwave of the summer, with meteorological experts predicting it could be the most extensive and enduring period of high temperatures experienced so far this season. The upcoming weather event is expected to bring significant warmth, with forecasts indicating a potential for prolonged periods of sunshine and elevated temperatures across much of the country.
A Shift in Weather Patterns: The Arrival of High Pressure
Forecasters attribute the anticipated rise in temperatures to a significant shift in atmospheric conditions. An area of high pressure is set to establish itself across the UK from the middle of the week. This phenomenon will effectively block the prevailing north-westerly winds that have recently brought cooler temperatures and much-needed rainfall. In their place, a flow of warm air originating from continental Europe is expected to dominate, driving temperatures upwards.
Rising Temperatures and Widespread Warmth
Initial forecasts suggest that temperatures could reach as high as 33C (91F) in England over the weekend. However, the warmth is not expected to be confined to the south of England. Projections indicate that Wales, Northern Ireland, and Scotland will also experience very warm or hot weather. It is even possible that certain locations could experience temperatures exceeding their established heatwave criteria for seven consecutive days, signalling a potentially prolonged period of significant heat.
Impacts Beyond Temperature: UV and Pollen Levels
Accompanying the high temperatures, the public should also be aware of elevated Ultraviolet (UV) radiation levels and increased pollen counts. These factors can pose additional health risks, particularly for vulnerable individuals. Experts advise taking precautions such as staying hydrated, seeking shade during peak sun hours, and using sun protection, including high-factor sunscreen and protective clothing.
Midweek Warm-Up and Weekend Peak
By Wednesday, much of England and Wales can expect sunny conditions, with temperatures predicted to range between 25C and 28C (77-82F) in the Midlands and southeastern parts of England. The warm weather is forecast to become more widespread on Thursday and Friday, extending its reach to Northern Ireland and Scotland as the high-pressure system shifts further north and east. This progression will allow temperatures to climb further, with the possibility of Scotland reaching 29C (84F) by Saturday. Northern Ireland is also likely to experience highs of around 26C (79F).
The weekend is expected to see many areas of England and Wales surpass the 30C (86F) mark, with the hottest spots potentially reaching 33C (91F). The heat may also bring increased humidity, leading to warm and muggy nights that could disrupt sleep for many.
The Duration and Scope of the Heatwave
This forthcoming heatwave is notable not just for its intensity but also for its potential duration and geographical spread. Previous heatwaves this summer have been more concentrated, primarily affecting southern and eastern England. However, this event is expected to be more extensive, impacting regions as far north as Scotland and across to Northern Ireland. Looking beyond the weekend, while cooler conditions are anticipated to develop in the north-west, the precise timing and extent of any temperature decrease in the south and east remain uncertain.
Will the Rest of the Summer Remain Hot?
The summer so far has been characterised by a pattern of warm spells and heatwaves, punctuated by brief periods of cooler, unsettled weather. Current long-range forecasts, while subject to inherent uncertainty, suggest a continued likelihood of warm or hot spells throughout the remainder of July. These projections align with broader climate change trends, which are making such extreme heat events more probable.
For the most up-to-date weather information, the public is encouraged to consult the latest monthly outlooks and the BBC Weather app for localised forecasts.