First heat-health alerts issued for 2025 while storms bring flood risk

The UK sees first yellow heat-health alerts of 2025, along with warnings of thunderstorms bringing lightning, gusty winds, and heavy rain. Flash flooding is expected in some areas with high rainfall within a short time. Health alerts cover regions like the east of England, London, and East Midlands due to soaring temperatures and humidity leading to thunderstorms. The weather conditions are a result of a battle zone between high and low pressure systems, with humid air sweeping across the UK.