UK warns of hail and thunderstorms after warm spell

The UK is preparing for severe weather as the Met Office has issued warnings for hail and thunderstorms. This comes just days after experiencing one of the warmest days of spring, with temperatures reaching 21C in some areas. Following this sunny spell, the forecast predicts up to nine hours of rain. Heavy showers have already begun in eastern England, accompanied by some hail and thunder. Travelers are advised to proceed with caution due to possible local flooding. A specific warning has been issued for groundwater flooding in the Bourne Valley. There are also concerns about flooding in 18 other areas across the UK. In London, residents should expect a mix of heavy showers and light drizzle on Sunday afternoon. These weather changes follow a brief "mini-heatwave," marking the highest temperature recorded during a UK spring equinox since 1972.