10C temperature plunge in stark six

Temperatures across the UK are set to drop significantly, with a forecasted decrease of around 10C in just six days. The Met Office reported that on Thursday, Writtle, Essex, recorded a high of 22C, while Walney Island, Cumbria, reached 21C, marking them as the warmest locations in the country. This warm spell was attributed to an unusual jetstream bringing warm air from Europe and Africa, resulting in temperatures frequently exceeding 20C throughout the week. However, the onset of meteorological autumn is imminent, leading to a stark change in weather conditions. By Wednesday, temperatures in Walney Island are expected to plummet to 11C, while Writtle will see a drop to just 12C. Other regions, including Leek in Staffordshire and parts of Lancashire, will experience single-digit temperatures. This shift is due to the arrival of fresher air and brisk westerly winds, particularly affecting the Irish Sea coast. The period from September 11 to September 20 is anticipated to begin with cool weather, accompanied by winds from the north or northwest. The Met Office has indicated that this will bring frequent showers, especially to northern coasts and hills. Prior to this cooler air, more rain is expected, particularly in Southeast England, following heavy downpours that have already affected southern England and Wales. Devon experienced the most severe rainfall on Thursday, with Okehampton receiving over 44mm, which is more than half of the average September rainfall. The Met Office has issued yellow weather warnings due to the heavy rain, and flood alerts are in place for several rivers in Devon and Dorset, indicating potential flooding risks in these areas.